OPKO Health Inc NASDAQ:OPK Historical Prices

Below are the 3922 trading days of historical prices for OPK.

# Exchange Symbol Date Open High Low Close
3922 NASDAQ OPK Tue, Jan 17, 2023 1.56 1.67 1.52 1.59
3921 NASDAQ OPK Fri, Jan 13, 2023 1.34 1.60 1.33 1.57
3920 NASDAQ OPK Thu, Jan 12, 2023 1.31 1.33 1.29 1.33
3919 NASDAQ OPK Wed, Jan 11, 2023 1.26 1.32 1.26 1.31
3918 NASDAQ OPK Tue, Jan 10, 2023 1.23 1.27 1.22 1.27
3917 NASDAQ OPK Mon, Jan 9, 2023 1.25 1.28 1.20 1.24
3916 NASDAQ OPK Fri, Jan 6, 2023 1.23 1.28 1.20 1.26
3915 NASDAQ OPK Thu, Jan 5, 2023 1.27 1.28 1.21 1.23
3914 NASDAQ OPK Wed, Jan 4, 2023 1.22 1.29 1.20 1.28
3913 NASDAQ OPK Tue, Jan 3, 2023 1.27 1.28 1.17 1.22
3912 NASDAQ OPK Fri, Dec 30, 2022 1.21 1.25 1.18 1.25
3911 NASDAQ OPK Thu, Dec 29, 2022 1.07 1.24 1.05 1.24
3910 NASDAQ OPK Wed, Dec 28, 2022 1.06 1.09 1.03 1.05
3909 NASDAQ OPK Tue, Dec 27, 2022 1.13 1.13 1.05 1.07
3908 NASDAQ OPK Fri, Dec 23, 2022 1.16 1.19 1.11 1.14
3907 NASDAQ OPK Thu, Dec 22, 2022 1.15 1.18 1.12 1.18
3906 NASDAQ OPK Wed, Dec 21, 2022 1.19 1.22 1.15 1.17
3905 NASDAQ OPK Tue, Dec 20, 2022 1.15 1.19 1.13 1.18
3904 NASDAQ OPK Mon, Dec 19, 2022 1.25 1.25 1.14 1.15
3903 NASDAQ OPK Fri, Dec 16, 2022 1.23 1.27 1.20 1.25
3902 NASDAQ OPK Thu, Dec 15, 2022 1.31 1.35 1.24 1.25
3901 NASDAQ OPK Wed, Dec 14, 2022 1.29 1.33 1.29 1.29
3900 NASDAQ OPK Tue, Dec 13, 2022 1.34 1.37 1.29 1.31
3899 NASDAQ OPK Mon, Dec 12, 2022 1.33 1.33 1.28 1.31
3898 NASDAQ OPK Fri, Dec 9, 2022 1.36 1.37 1.32 1.33
3897 NASDAQ OPK Thu, Dec 8, 2022 1.36 1.39 1.31 1.35
3896 NASDAQ OPK Wed, Dec 7, 2022 1.37 1.38 1.32 1.36
3895 NASDAQ OPK Tue, Dec 6, 2022 1.41 1.42 1.36 1.38
3894 NASDAQ OPK Mon, Dec 5, 2022 1.46 1.47 1.39 1.42
3893 NASDAQ OPK Fri, Dec 2, 2022 1.42 1.48 1.39 1.47
3892 NASDAQ OPK Thu, Dec 1, 2022 1.50 1.55 1.42 1.46
3891 NASDAQ OPK Wed, Nov 30, 2022 1.43 1.51 1.38 1.50
3890 NASDAQ OPK Tue, Nov 29, 2022 1.40 1.45 1.38 1.41
3889 NASDAQ OPK Mon, Nov 28, 2022 1.44 1.44 1.36 1.40
3888 NASDAQ OPK Fri, Nov 25, 2022 1.50 1.50 1.44 1.47
3887 NASDAQ OPK Wed, Nov 23, 2022 1.47 1.51 1.46 1.50
3886 NASDAQ OPK Tue, Nov 22, 2022 1.56 1.57 1.43 1.47
3885 NASDAQ OPK Mon, Nov 21, 2022 1.59 1.61 1.56 1.59
3884 NASDAQ OPK Fri, Nov 18, 2022 1.68 1.68 1.58 1.62
3883 NASDAQ OPK Thu, Nov 17, 2022 1.65 1.68 1.58 1.63
3882 NASDAQ OPK Wed, Nov 16, 2022 1.72 1.75 1.68 1.70
3881 NASDAQ OPK Tue, Nov 15, 2022 1.74 1.78 1.72 1.76
3880 NASDAQ OPK Mon, Nov 14, 2022 1.66 1.72 1.64 1.70
3879 NASDAQ OPK Fri, Nov 11, 2022 1.61 1.67 1.57 1.65
3878 NASDAQ OPK Thu, Nov 10, 2022 1.64 1.64 1.52 1.60
3877 NASDAQ OPK Wed, Nov 9, 2022 1.78 1.79 1.53 1.55
3876 NASDAQ OPK Tue, Nov 8, 2022 1.82 1.91 1.78 1.85
3875 NASDAQ OPK Mon, Nov 7, 2022 1.80 1.83 1.78 1.82
3874 NASDAQ OPK Fri, Nov 4, 2022 1.83 1.83 1.72 1.78
3873 NASDAQ OPK Thu, Nov 3, 2022 1.88 1.90 1.80 1.80
3872 NASDAQ OPK Wed, Nov 2, 2022 1.88 1.95 1.85 1.88
3871 NASDAQ OPK Tue, Nov 1, 2022 1.91 1.93 1.85 1.90
3870 NASDAQ OPK Mon, Oct 31, 2022 1.85 1.93 1.85 1.90
3869 NASDAQ OPK Fri, Oct 28, 2022 1.85 1.91 1.82 1.86
3868 NASDAQ OPK Thu, Oct 27, 2022 1.84 1.90 1.78 1.80
3867 NASDAQ OPK Wed, Oct 26, 2022 1.80 1.95 1.79 1.89
3866 NASDAQ OPK Tue, Oct 25, 2022 1.78 1.84 1.78 1.80
3865 NASDAQ OPK Mon, Oct 24, 2022 1.78 1.80 1.75 1.80
3864 NASDAQ OPK Fri, Oct 21, 2022 1.77 1.77 1.70 1.77
3863 NASDAQ OPK Thu, Oct 20, 2022 1.75 1.78 1.72 1.74
3862 NASDAQ OPK Wed, Oct 19, 2022 1.75 1.75 1.69 1.73
3861 NASDAQ OPK Tue, Oct 18, 2022 1.85 1.89 1.74 1.76
3860 NASDAQ OPK Mon, Oct 17, 2022 1.75 1.81 1.73 1.81
3859 NASDAQ OPK Fri, Oct 14, 2022 1.78 1.79 1.71 1.73
3858 NASDAQ OPK Thu, Oct 13, 2022 1.73 1.81 1.70 1.78
3857 NASDAQ OPK Wed, Oct 12, 2022 1.75 1.78 1.70 1.74
3856 NASDAQ OPK Tue, Oct 11, 2022 1.80 1.83 1.73 1.75
3855 NASDAQ OPK Mon, Oct 10, 2022 1.76 1.81 1.75 1.80
3854 NASDAQ OPK Fri, Oct 7, 2022 1.81 1.85 1.75 1.75
3853 NASDAQ OPK Thu, Oct 6, 2022 1.88 1.91 1.81 1.85
3852 NASDAQ OPK Wed, Oct 5, 2022 1.97 2.00 1.86 1.91
3851 NASDAQ OPK Tue, Oct 4, 2022 1.93 2.01 1.91 2.01
3850 NASDAQ OPK Mon, Oct 3, 2022 1.87 1.93 1.84 1.91
3849 NASDAQ OPK Fri, Sep 30, 2022 1.86 1.95 1.86 1.89
3848 NASDAQ OPK Thu, Sep 29, 2022 1.89 1.90 1.84 1.87
3847 NASDAQ OPK Wed, Sep 28, 2022 1.89 1.98 1.88 1.95
3846 NASDAQ OPK Tue, Sep 27, 2022 1.83 1.90 1.82 1.86
3845 NASDAQ OPK Mon, Sep 26, 2022 1.84 1.90 1.78 1.81
3844 NASDAQ OPK Fri, Sep 23, 2022 1.89 1.89 1.83 1.88
3843 NASDAQ OPK Thu, Sep 22, 2022 1.90 1.91 1.85 1.89
3842 NASDAQ OPK Wed, Sep 21, 2022 1.95 2.01 1.89 1.90
3841 NASDAQ OPK Tue, Sep 20, 2022 1.95 1.99 1.91 1.94
3840 NASDAQ OPK Mon, Sep 19, 2022 2.02 2.02 1.95 1.97
3839 NASDAQ OPK Fri, Sep 16, 2022 2.10 2.10 1.96 2.05
3838 NASDAQ OPK Thu, Sep 15, 2022 2.07 2.10 2.04 2.06
3837 NASDAQ OPK Wed, Sep 14, 2022 2.10 2.14 2.08 2.09
3836 NASDAQ OPK Tue, Sep 13, 2022 2.16 2.17 2.10 2.12
3835 NASDAQ OPK Mon, Sep 12, 2022 2.23 2.27 2.18 2.23
3834 NASDAQ OPK Fri, Sep 9, 2022 2.23 2.26 2.16 2.21
3833 NASDAQ OPK Thu, Sep 8, 2022 2.12 2.25 2.12 2.21
3832 NASDAQ OPK Wed, Sep 7, 2022 2.12 2.19 2.10 2.18
3831 NASDAQ OPK Tue, Sep 6, 2022 2.17 2.17 2.11 2.12
3830 NASDAQ OPK Fri, Sep 2, 2022 2.19 2.25 2.12 2.13
3829 NASDAQ OPK Thu, Sep 1, 2022 2.16 2.21 2.12 2.20
3828 NASDAQ OPK Wed, Aug 31, 2022 2.25 2.27 2.16 2.18
3827 NASDAQ OPK Tue, Aug 30, 2022 2.28 2.30 2.22 2.22
3826 NASDAQ OPK Mon, Aug 29, 2022 2.29 2.34 2.25 2.30
3825 NASDAQ OPK Fri, Aug 26, 2022 2.48 2.50 2.30 2.31
3824 NASDAQ OPK Thu, Aug 25, 2022 2.53 2.59 2.45 2.50
3823 NASDAQ OPK Wed, Aug 24, 2022 2.49 2.57 2.46 2.56
3822 NASDAQ OPK Tue, Aug 23, 2022 2.45 2.52 2.43 2.48
3821 NASDAQ OPK Mon, Aug 22, 2022 2.48 2.54 2.44 2.46
3820 NASDAQ OPK Fri, Aug 19, 2022 2.56 2.60 2.50 2.53
3819 NASDAQ OPK Thu, Aug 18, 2022 2.58 2.60 2.51 2.58
3818 NASDAQ OPK Wed, Aug 17, 2022 2.53 2.57 2.49 2.54
3817 NASDAQ OPK Tue, Aug 16, 2022 2.57 2.66 2.55 2.59
3816 NASDAQ OPK Mon, Aug 15, 2022 2.53 2.62 2.51 2.61
3815 NASDAQ OPK Fri, Aug 12, 2022 2.54 2.55 2.45 2.52
3814 NASDAQ OPK Thu, Aug 11, 2022 2.72 2.77 2.50 2.50
3813 NASDAQ OPK Wed, Aug 10, 2022 2.57 2.72 2.50 2.71
3812 NASDAQ OPK Tue, Aug 9, 2022 2.42 2.52 2.36 2.51
3811 NASDAQ OPK Mon, Aug 8, 2022 2.35 2.46 2.30 2.45
3810 NASDAQ OPK Fri, Aug 5, 2022 2.30 2.38 2.16 2.28
3809 NASDAQ OPK Thu, Aug 4, 2022 2.41 2.42 2.31 2.40
3808 NASDAQ OPK Wed, Aug 3, 2022 2.45 2.51 2.43 2.44
3807 NASDAQ OPK Tue, Aug 2, 2022 2.42 2.51 2.40 2.45
3806 NASDAQ OPK Mon, Aug 1, 2022 2.34 2.46 2.31 2.42
3805 NASDAQ OPK Fri, Jul 29, 2022 2.45 2.45 2.35 2.36
3804 NASDAQ OPK Thu, Jul 28, 2022 2.46 2.47 2.38 2.43
3803 NASDAQ OPK Wed, Jul 27, 2022 2.40 2.50 2.37 2.47
3802 NASDAQ OPK Tue, Jul 26, 2022 2.42 2.43 2.33 2.37
3801 NASDAQ OPK Mon, Jul 25, 2022 2.43 2.45 2.36 2.45
3800 NASDAQ OPK Fri, Jul 22, 2022 2.55 2.56 2.37 2.42
3799 NASDAQ OPK Thu, Jul 21, 2022 2.60 2.64 2.53 2.54
3798 NASDAQ OPK Wed, Jul 20, 2022 2.63 2.68 2.59 2.64
3797 NASDAQ OPK Tue, Jul 19, 2022 2.59 2.67 2.59 2.61
3796 NASDAQ OPK Mon, Jul 18, 2022 2.77 2.79 2.55 2.58
3795 NASDAQ OPK Fri, Jul 15, 2022 2.72 2.77 2.68 2.76
3794 NASDAQ OPK Thu, Jul 14, 2022 2.70 2.71 2.61 2.69
3793 NASDAQ OPK Wed, Jul 13, 2022 2.69 2.80 2.66 2.77
3792 NASDAQ OPK Tue, Jul 12, 2022 2.73 2.80 2.67 2.76
3791 NASDAQ OPK Mon, Jul 11, 2022 2.80 2.80 2.71 2.72
3790 NASDAQ OPK Fri, Jul 8, 2022 2.77 2.86 2.74 2.81
3789 NASDAQ OPK Thu, Jul 7, 2022 2.72 2.84 2.71 2.80
3788 NASDAQ OPK Wed, Jul 6, 2022 2.63 2.74 2.62 2.74
3787 NASDAQ OPK Tue, Jul 5, 2022 2.59 2.65 2.50 2.65
3786 NASDAQ OPK Fri, Jul 1, 2022 2.52 2.65 2.47 2.63
3785 NASDAQ OPK Thu, Jun 30, 2022 2.51 2.58 2.47 2.53
3784 NASDAQ OPK Wed, Jun 29, 2022 2.55 2.60 2.50 2.59
3783 NASDAQ OPK Tue, Jun 28, 2022 2.69 2.70 2.54 2.57
3782 NASDAQ OPK Mon, Jun 27, 2022 2.64 2.77 2.59 2.70
3781 NASDAQ OPK Fri, Jun 24, 2022 2.64 2.70 2.56 2.64
3780 NASDAQ OPK Thu, Jun 23, 2022 2.49 2.64 2.48 2.63
3779 NASDAQ OPK Wed, Jun 22, 2022 2.36 2.53 2.33 2.49
3778 NASDAQ OPK Tue, Jun 21, 2022 2.47 2.53 2.18 2.39
3777 NASDAQ OPK Fri, Jun 17, 2022 2.37 2.47 2.37 2.42
3776 NASDAQ OPK Thu, Jun 16, 2022 2.43 2.44 2.27 2.33
3775 NASDAQ OPK Wed, Jun 15, 2022 2.43 2.54 2.41 2.52
3774 NASDAQ OPK Tue, Jun 14, 2022 2.41 2.41 2.27 2.39
3773 NASDAQ OPK Mon, Jun 13, 2022 2.49 2.50 2.34 2.34
3772 NASDAQ OPK Fri, Jun 10, 2022 2.70 2.78 2.55 2.56
3771 NASDAQ OPK Thu, Jun 9, 2022 2.84 2.91 2.73 2.74
3770 NASDAQ OPK Wed, Jun 8, 2022 2.82 2.95 2.81 2.84
3769 NASDAQ OPK Tue, Jun 7, 2022 2.75 2.85 2.74 2.85
3768 NASDAQ OPK Mon, Jun 6, 2022 2.99 3.06 2.75 2.76
3767 NASDAQ OPK Fri, Jun 3, 2022 3.01 3.07 2.91 2.95
3766 NASDAQ OPK Thu, Jun 2, 2022 2.99 3.11 2.96 3.09
3765 NASDAQ OPK Wed, Jun 1, 2022 3.05 3.08 2.92 2.99
3764 NASDAQ OPK Tue, May 31, 2022 3.15 3.24 2.99 3.00
3763 NASDAQ OPK Fri, May 27, 2022 3.08 3.22 3.00 3.20
3762 NASDAQ OPK Thu, May 26, 2022 2.97 3.10 2.97 3.06
3761 NASDAQ OPK Wed, May 25, 2022 3.01 3.09 2.93 3.02
3760 NASDAQ OPK Tue, May 24, 2022 3.04 3.11 3.01 3.03
3759 NASDAQ OPK Mon, May 23, 2022 3.13 3.21 3.08 3.10
3758 NASDAQ OPK Fri, May 20, 2022 3.08 3.10 2.96 3.09
3757 NASDAQ OPK Thu, May 19, 2022 2.86 3.07 2.86 2.99
3756 NASDAQ OPK Wed, May 18, 2022 3.02 3.02 2.82 2.86
3755 NASDAQ OPK Tue, May 17, 2022 3.06 3.16 3.04 3.10
3754 NASDAQ OPK Mon, May 16, 2022 3.01 3.09 2.94 2.97
3753 NASDAQ OPK Fri, May 13, 2022 2.85 3.04 2.85 3.03
3752 NASDAQ OPK Thu, May 12, 2022 2.65 2.89 2.65 2.80
3751 NASDAQ OPK Wed, May 11, 2022 2.89 2.99 2.66 2.69
3750 NASDAQ OPK Tue, May 10, 2022 2.55 2.98 2.54 2.93
3749 NASDAQ OPK Mon, May 9, 2022 2.55 2.73 2.43 2.44
3748 NASDAQ OPK Fri, May 6, 2022 2.72 2.73 2.53 2.62
3747 NASDAQ OPK Thu, May 5, 2022 2.91 2.91 2.70 2.74
3746 NASDAQ OPK Wed, May 4, 2022 2.86 3.02 2.78 3.00
3745 NASDAQ OPK Tue, May 3, 2022 2.80 2.93 2.80 2.89
3744 NASDAQ OPK Mon, May 2, 2022 2.70 2.80 2.67 2.80
3743 NASDAQ OPK Fri, Apr 29, 2022 2.75 2.92 2.69 2.70
3742 NASDAQ OPK Thu, Apr 28, 2022 2.84 2.86 2.70 2.82
3741 NASDAQ OPK Wed, Apr 27, 2022 2.81 2.86 2.76 2.77
3740 NASDAQ OPK Tue, Apr 26, 2022 2.96 3.03 2.79 2.79
3739 NASDAQ OPK Mon, Apr 25, 2022 2.95 2.98 2.87 2.98
3738 NASDAQ OPK Fri, Apr 22, 2022 3.04 3.10 2.91 2.93
3737 NASDAQ OPK Thu, Apr 21, 2022 3.23 3.26 3.03 3.03
3736 NASDAQ OPK Wed, Apr 20, 2022 3.27 3.27 3.18 3.20
3735 NASDAQ OPK Tue, Apr 19, 2022 3.20 3.27 3.15 3.21
3734 NASDAQ OPK Mon, Apr 18, 2022 3.35 3.35 3.15 3.17
3733 NASDAQ OPK Thu, Apr 14, 2022 3.50 3.50 3.34 3.34
3732 NASDAQ OPK Wed, Apr 13, 2022 3.43 3.55 3.42 3.51
3731 NASDAQ OPK Tue, Apr 12, 2022 3.30 3.52 3.29 3.44
3730 NASDAQ OPK Mon, Apr 11, 2022 3.35 3.38 3.26 3.28
3729 NASDAQ OPK Fri, Apr 8, 2022 3.44 3.49 3.38 3.40
3728 NASDAQ OPK Thu, Apr 7, 2022 3.44 3.49 3.42 3.45
3727 NASDAQ OPK Wed, Apr 6, 2022 3.45 3.54 3.42 3.48
3726 NASDAQ OPK Tue, Apr 5, 2022 3.57 3.63 3.48 3.49
3725 NASDAQ OPK Mon, Apr 4, 2022 3.51 3.63 3.47 3.61
3724 NASDAQ OPK Fri, Apr 1, 2022 3.44 3.53 3.41 3.51
3723 NASDAQ OPK Thu, Mar 31, 2022 3.56 3.57 3.39 3.44
3722 NASDAQ OPK Wed, Mar 30, 2022 3.67 3.72 3.54 3.54
3721 NASDAQ OPK Tue, Mar 29, 2022 3.62 3.75 3.61 3.75
3720 NASDAQ OPK Mon, Mar 28, 2022 3.53 3.62 3.51 3.58
3719 NASDAQ OPK Fri, Mar 25, 2022 3.51 3.58 3.46 3.51
3718 NASDAQ OPK Thu, Mar 24, 2022 3.50 3.53 3.46 3.48
3717 NASDAQ OPK Wed, Mar 23, 2022 3.53 3.60 3.44 3.45
3716 NASDAQ OPK Tue, Mar 22, 2022 3.59 3.65 3.51 3.60
3715 NASDAQ OPK Mon, Mar 21, 2022 3.67 3.75 3.53 3.57
3714 NASDAQ OPK Fri, Mar 18, 2022 3.65 3.78 3.62 3.74
3713 NASDAQ OPK Thu, Mar 17, 2022 3.43 3.65 3.41 3.65
3712 NASDAQ OPK Wed, Mar 16, 2022 3.37 3.49 3.33 3.48
3711 NASDAQ OPK Tue, Mar 15, 2022 3.13 3.33 3.11 3.32
3710 NASDAQ OPK Mon, Mar 14, 2022 3.17 3.24 3.02 3.05
3709 NASDAQ OPK Fri, Mar 11, 2022 3.31 3.42 3.11 3.12
3708 NASDAQ OPK Thu, Mar 10, 2022 3.16 3.32 3.14 3.28
3707 NASDAQ OPK Wed, Mar 9, 2022 3.13 3.25 3.11 3.21
3706 NASDAQ OPK Tue, Mar 8, 2022 3.07 3.17 2.98 3.09
3705 NASDAQ OPK Mon, Mar 7, 2022 3.08 3.17 3.06 3.12
3704 NASDAQ OPK Fri, Mar 4, 2022 3.10 3.22 3.04 3.06
3703 NASDAQ OPK Thu, Mar 3, 2022 3.14 3.21 3.11 3.15
3702 NASDAQ OPK Wed, Mar 2, 2022 3.08 3.23 3.06 3.19
3701 NASDAQ OPK Tue, Mar 1, 2022 3.11 3.17 3.03 3.09
3700 NASDAQ OPK Mon, Feb 28, 2022 3.13 3.27 3.07 3.13
3699 NASDAQ OPK Fri, Feb 25, 2022 2.80 3.23 2.79 3.20
3698 NASDAQ OPK Thu, Feb 24, 2022 2.93 3.23 2.91 3.23
3697 NASDAQ OPK Wed, Feb 23, 2022 3.09 3.14 2.98 2.98
3696 NASDAQ OPK Tue, Feb 22, 2022 3.13 3.19 3.01 3.02
3695 NASDAQ OPK Fri, Feb 18, 2022 3.16 3.23 3.13 3.15
3694 NASDAQ OPK Thu, Feb 17, 2022 3.28 3.28 3.11 3.14
3693 NASDAQ OPK Wed, Feb 16, 2022 3.29 3.34 3.23 3.29
3692 NASDAQ OPK Tue, Feb 15, 2022 3.12 3.31 3.08 3.29
3691 NASDAQ OPK Mon, Feb 14, 2022 3.09 3.12 3.01 3.02
3690 NASDAQ OPK Fri, Feb 11, 2022 3.19 3.25 3.08 3.10
3689 NASDAQ OPK Thu, Feb 10, 2022 3.25 3.38 3.17 3.19
3688 NASDAQ OPK Wed, Feb 9, 2022 3.21 3.33 3.19 3.28
3687 NASDAQ OPK Tue, Feb 8, 2022 3.26 3.27 3.15 3.19
3686 NASDAQ OPK Mon, Feb 7, 2022 3.22 3.33 3.21 3.26
3685 NASDAQ OPK Fri, Feb 4, 2022 3.20 3.28 3.18 3.23
3684 NASDAQ OPK Thu, Feb 3, 2022 3.00 3.25 2.99 3.20
3683 NASDAQ OPK Wed, Feb 2, 2022 3.11 3.12 3.02 3.04
3682 NASDAQ OPK Tue, Feb 1, 2022 3.13 3.14 2.99 3.06
3681 NASDAQ OPK Mon, Jan 31, 2022 3.00 3.16 2.98 3.13
3680 NASDAQ OPK Fri, Jan 28, 2022 2.90 2.95 2.80 2.95
3679 NASDAQ OPK Thu, Jan 27, 2022 3.01 3.01 2.87 2.87
3678 NASDAQ OPK Wed, Jan 26, 2022 3.10 3.18 2.89 2.91
3677 NASDAQ OPK Tue, Jan 25, 2022 3.21 3.21 3.00 3.01
3676 NASDAQ OPK Mon, Jan 24, 2022 3.53 3.54 3.18 3.23
3675 NASDAQ OPK Fri, Jan 21, 2022 4.35 4.46 4.22 4.24
3674 NASDAQ OPK Thu, Jan 20, 2022 4.55 4.63 4.34 4.36
3673 NASDAQ OPK Wed, Jan 19, 2022 4.72 4.74 4.41 4.43
3672 NASDAQ OPK Tue, Jan 18, 2022 4.66 4.92 4.53 4.72
3671 NASDAQ OPK Fri, Jan 14, 2022 4.25 4.53 4.20 4.53
3670 NASDAQ OPK Thu, Jan 13, 2022 4.49 4.53 4.26 4.28
3669 NASDAQ OPK Wed, Jan 12, 2022 4.63 4.65 4.43 4.44
3668 NASDAQ OPK Tue, Jan 11, 2022 4.55 4.66 4.51 4.59
3667 NASDAQ OPK Mon, Jan 10, 2022 4.39 4.63 4.36 4.62
3666 NASDAQ OPK Fri, Jan 7, 2022 4.62 4.64 4.44 4.45
3665 NASDAQ OPK Thu, Jan 6, 2022 4.51 4.65 4.39 4.63
3664 NASDAQ OPK Wed, Jan 5, 2022 4.67 4.78 4.48 4.50
3663 NASDAQ OPK Tue, Jan 4, 2022 4.94 4.94 4.66 4.67
3662 NASDAQ OPK Mon, Jan 3, 2022 4.85 4.96 4.74 4.93
3661 NASDAQ OPK Fri, Dec 31, 2021 4.82 4.96 4.79 4.81
3660 NASDAQ OPK Thu, Dec 30, 2021 4.98 5.01 4.82 4.84
3659 NASDAQ OPK Wed, Dec 29, 2021 4.85 5.03 4.84 4.98
3658 NASDAQ OPK Tue, Dec 28, 2021 5.22 5.25 4.83 4.85
3657 NASDAQ OPK Mon, Dec 27, 2021 4.87 5.16 4.80 5.15
3656 NASDAQ OPK Thu, Dec 23, 2021 4.65 4.84 4.47 4.77
3655 NASDAQ OPK Wed, Dec 22, 2021 4.46 4.62 4.43 4.61
3654 NASDAQ OPK Tue, Dec 21, 2021 4.45 4.51 4.31 4.46
3653 NASDAQ OPK Mon, Dec 20, 2021 4.38 4.61 4.28 4.43
3652 NASDAQ OPK Fri, Dec 17, 2021 3.97 4.73 3.95 4.41
3651 NASDAQ OPK Thu, Dec 16, 2021 4.03 4.05 3.95 3.99
3650 NASDAQ OPK Wed, Dec 15, 2021 3.78 4.08 3.75 4.08
3649 NASDAQ OPK Tue, Dec 14, 2021 3.83 3.88 3.74 3.80
3648 NASDAQ OPK Mon, Dec 13, 2021 3.87 3.91 3.76 3.89
3647 NASDAQ OPK Fri, Dec 10, 2021 3.86 3.89 3.77 3.87
3646 NASDAQ OPK Thu, Dec 9, 2021 3.97 4.02 3.84 3.87
3645 NASDAQ OPK Wed, Dec 8, 2021 3.98 4.06 3.85 4.02
3644 NASDAQ OPK Tue, Dec 7, 2021 3.83 3.98 3.81 3.90
3643 NASDAQ OPK Mon, Dec 6, 2021 3.89 3.93 3.79 3.81
3642 NASDAQ OPK Fri, Dec 3, 2021 3.98 3.99 3.84 3.86
3641 NASDAQ OPK Thu, Dec 2, 2021 3.87 3.99 3.83 3.97
3640 NASDAQ OPK Wed, Dec 1, 2021 3.97 4.07 3.86 3.86
3639 NASDAQ OPK Tue, Nov 30, 2021 4.07 4.10 3.90 3.93
3638 NASDAQ OPK Mon, Nov 29, 2021 4.14 4.26 4.04 4.09
3637 NASDAQ OPK Fri, Nov 26, 2021 4.27 4.31 4.12 4.13
3636 NASDAQ OPK Wed, Nov 24, 2021 4.22 4.34 4.18 4.31
3635 NASDAQ OPK Tue, Nov 23, 2021 4.28 4.32 4.12 4.25
3634 NASDAQ OPK Mon, Nov 22, 2021 4.35 4.38 4.23 4.27
3633 NASDAQ OPK Fri, Nov 19, 2021 4.30 4.42 4.22 4.35
3632 NASDAQ OPK Thu, Nov 18, 2021 4.46 4.56 4.29 4.31
3631 NASDAQ OPK Wed, Nov 17, 2021 4.11 4.50 4.10 4.44
3630 NASDAQ OPK Tue, Nov 16, 2021 4.06 4.16 4.03 4.14
3629 NASDAQ OPK Mon, Nov 15, 2021 4.12 4.15 4.03 4.04
3628 NASDAQ OPK Fri, Nov 12, 2021 4.11 4.15 4.05 4.12
3627 NASDAQ OPK Thu, Nov 11, 2021 4.07 4.16 4.05 4.09
3626 NASDAQ OPK Wed, Nov 10, 2021 4.13 4.22 4.06 4.07
3625 NASDAQ OPK Tue, Nov 9, 2021 4.12 4.19 4.05 4.13
3624 NASDAQ OPK Mon, Nov 8, 2021 4.04 4.21 4.01 4.17
3623 NASDAQ OPK Fri, Nov 5, 2021 4.10 4.24 4.00 4.07
3622 NASDAQ OPK Thu, Nov 4, 2021 4.44 4.45 4.12 4.14
3621 NASDAQ OPK Wed, Nov 3, 2021 4.17 4.45 4.14 4.43
3620 NASDAQ OPK Tue, Nov 2, 2021 3.80 4.18 3.76 4.16
3619 NASDAQ OPK Mon, Nov 1, 2021 3.78 3.85 3.65 3.84
3618 NASDAQ OPK Fri, Oct 29, 2021 3.80 3.91 3.71 3.79
3617 NASDAQ OPK Thu, Oct 28, 2021 3.63 3.67 3.56 3.67
3616 NASDAQ OPK Wed, Oct 27, 2021 3.64 3.67 3.57 3.58
3615 NASDAQ OPK Tue, Oct 26, 2021 3.63 3.65 3.58 3.60
3614 NASDAQ OPK Mon, Oct 25, 2021 3.68 3.69 3.54 3.60
3613 NASDAQ OPK Fri, Oct 22, 2021 3.66 3.70 3.63 3.69
3612 NASDAQ OPK Thu, Oct 21, 2021 3.69 3.74 3.66 3.70
3611 NASDAQ OPK Wed, Oct 20, 2021 3.75 3.75 3.68 3.72
3610 NASDAQ OPK Tue, Oct 19, 2021 3.71 3.78 3.70 3.75
3609 NASDAQ OPK Mon, Oct 18, 2021 3.74 3.77 3.67 3.70
3608 NASDAQ OPK Fri, Oct 15, 2021 3.79 3.79 3.71 3.72
3607 NASDAQ OPK Thu, Oct 14, 2021 3.75 3.83 3.73 3.76
3606 NASDAQ OPK Wed, Oct 13, 2021 3.72 3.78 3.69 3.73
3605 NASDAQ OPK Tue, Oct 12, 2021 3.68 3.76 3.68 3.71
3604 NASDAQ OPK Mon, Oct 11, 2021 3.66 3.80 3.64 3.75
3603 NASDAQ OPK Fri, Oct 8, 2021 3.73 3.77 3.68 3.69
3602 NASDAQ OPK Thu, Oct 7, 2021 3.71 3.80 3.69 3.74
3601 NASDAQ OPK Wed, Oct 6, 2021 3.63 3.73 3.61 3.69
3600 NASDAQ OPK Tue, Oct 5, 2021 3.53 3.64 3.52 3.62
3599 NASDAQ OPK Mon, Oct 4, 2021 3.60 3.61 3.50 3.52
3598 NASDAQ OPK Fri, Oct 1, 2021 3.65 3.66 3.49 3.58
3597 NASDAQ OPK Thu, Sep 30, 2021 3.64 3.72 3.60 3.65
3596 NASDAQ OPK Wed, Sep 29, 2021 3.69 3.75 3.63 3.64
3595 NASDAQ OPK Tue, Sep 28, 2021 3.71 3.71 3.62 3.67
3594 NASDAQ OPK Mon, Sep 27, 2021 3.72 3.80 3.65 3.72
3593 NASDAQ OPK Fri, Sep 24, 2021 3.83 3.84 3.75 3.75
3592 NASDAQ OPK Thu, Sep 23, 2021 3.80 3.90 3.78 3.88
3591 NASDAQ OPK Wed, Sep 22, 2021 3.82 3.89 3.74 3.80
3590 NASDAQ OPK Tue, Sep 21, 2021 3.80 3.87 3.78 3.82
3589 NASDAQ OPK Mon, Sep 20, 2021 3.85 3.89 3.72 3.79
3588 NASDAQ OPK Fri, Sep 17, 2021 3.82 3.97 3.73 3.94
3587 NASDAQ OPK Thu, Sep 16, 2021 3.74 3.83 3.70 3.82
3586 NASDAQ OPK Wed, Sep 15, 2021 3.55 3.82 3.48 3.74
3585 NASDAQ OPK Tue, Sep 14, 2021 3.57 3.61 3.44 3.48
3584 NASDAQ OPK Mon, Sep 13, 2021 3.61 3.64 3.53 3.58
3583 NASDAQ OPK Fri, Sep 10, 2021 3.69 3.70 3.55 3.56
3582 NASDAQ OPK Thu, Sep 9, 2021 3.57 3.81 3.55 3.66
3581 NASDAQ OPK Wed, Sep 8, 2021 3.58 3.62 3.54 3.56
3580 NASDAQ OPK Tue, Sep 7, 2021 3.71 3.72 3.56 3.58
3579 NASDAQ OPK Fri, Sep 3, 2021 3.85 3.89 3.67 3.67
3578 NASDAQ OPK Thu, Sep 2, 2021 3.86 3.90 3.83 3.90
3577 NASDAQ OPK Wed, Sep 1, 2021 3.89 3.89 3.81 3.85
3576 NASDAQ OPK Tue, Aug 31, 2021 3.83 3.88 3.82 3.86
3575 NASDAQ OPK Mon, Aug 30, 2021 3.83 3.91 3.82 3.84
3574 NASDAQ OPK Fri, Aug 27, 2021 3.76 3.88 3.76 3.86
3573 NASDAQ OPK Thu, Aug 26, 2021 3.81 3.85 3.75 3.78
3572 NASDAQ OPK Wed, Aug 25, 2021 3.80 3.86 3.78 3.82
3571 NASDAQ OPK Tue, Aug 24, 2021 3.86 3.88 3.75 3.78
3570 NASDAQ OPK Mon, Aug 23, 2021 3.69 3.92 3.69 3.86
3569 NASDAQ OPK Fri, Aug 20, 2021 3.44 3.70 3.44 3.67
3568 NASDAQ OPK Thu, Aug 19, 2021 3.51 3.56 3.45 3.45
3567 NASDAQ OPK Wed, Aug 18, 2021 3.69 3.70 3.55 3.55
3566 NASDAQ OPK Tue, Aug 17, 2021 3.62 3.72 3.61 3.72
3565 NASDAQ OPK Mon, Aug 16, 2021 3.68 3.73 3.58 3.64
3564 NASDAQ OPK Fri, Aug 13, 2021 3.76 3.78 3.67 3.68
3563 NASDAQ OPK Thu, Aug 12, 2021 3.69 3.78 3.68 3.75
3562 NASDAQ OPK Wed, Aug 11, 2021 3.74 3.75 3.66 3.73
3561 NASDAQ OPK Tue, Aug 10, 2021 3.70 3.73 3.67 3.70
3560 NASDAQ OPK Mon, Aug 9, 2021 3.78 3.81 3.68 3.74
3559 NASDAQ OPK Fri, Aug 6, 2021 3.75 3.85 3.69 3.81
3558 NASDAQ OPK Thu, Aug 5, 2021 3.61 3.79 3.61 3.76
3557 NASDAQ OPK Wed, Aug 4, 2021 3.60 3.66 3.54 3.62
3556 NASDAQ OPK Tue, Aug 3, 2021 3.54 3.62 3.49 3.61
3555 NASDAQ OPK Mon, Aug 2, 2021 3.55 3.56 3.45 3.55
3554 NASDAQ OPK Fri, Jul 30, 2021 3.36 3.52 3.26 3.44
3553 NASDAQ OPK Thu, Jul 29, 2021 3.99 3.99 3.70 3.73
3552 NASDAQ OPK Wed, Jul 28, 2021 3.67 3.90 3.66 3.89
3551 NASDAQ OPK Tue, Jul 27, 2021 3.62 3.65 3.53 3.62
3550 NASDAQ OPK Mon, Jul 26, 2021 3.66 3.73 3.56 3.57
3549 NASDAQ OPK Fri, Jul 23, 2021 3.73 3.73 3.61 3.64
3548 NASDAQ OPK Thu, Jul 22, 2021 3.70 3.76 3.63 3.68
3547 NASDAQ OPK Wed, Jul 21, 2021 3.57 3.72 3.57 3.72
3546 NASDAQ OPK Tue, Jul 20, 2021 3.49 3.62 3.49 3.61
3545 NASDAQ OPK Mon, Jul 19, 2021 3.46 3.60 3.42 3.53
3544 NASDAQ OPK Fri, Jul 16, 2021 3.59 3.59 3.46 3.50
3543 NASDAQ OPK Thu, Jul 15, 2021 3.53 3.59 3.48 3.54
3542 NASDAQ OPK Wed, Jul 14, 2021 3.70 3.71 3.51 3.52
3541 NASDAQ OPK Tue, Jul 13, 2021 3.77 3.79 3.65 3.66
3540 NASDAQ OPK Mon, Jul 12, 2021 3.99 4.02 3.75 3.80
3539 NASDAQ OPK Fri, Jul 9, 2021 3.92 4.04 3.88 4.01
3538 NASDAQ OPK Thu, Jul 8, 2021 3.80 3.97 3.78 3.89
3537 NASDAQ OPK Wed, Jul 7, 2021 3.91 3.93 3.72 3.85
3536 NASDAQ OPK Tue, Jul 6, 2021 3.96 3.99 3.88 3.93
3535 NASDAQ OPK Fri, Jul 2, 2021 4.18 4.20 3.97 4.01
3534 NASDAQ OPK Thu, Jul 1, 2021 4.03 4.24 3.99 4.24
3533 NASDAQ OPK Wed, Jun 30, 2021 4.06 4.08 3.93 4.05
3532 NASDAQ OPK Tue, Jun 29, 2021 3.96 4.18 3.94 4.08
3531 NASDAQ OPK Mon, Jun 28, 2021 3.80 3.97 3.78 3.97
3530 NASDAQ OPK Fri, Jun 25, 2021 3.76 3.87 3.74 3.86
3529 NASDAQ OPK Thu, Jun 24, 2021 3.74 3.78 3.65 3.77
3528 NASDAQ OPK Wed, Jun 23, 2021 3.85 3.88 3.69 3.70
3527 NASDAQ OPK Tue, Jun 22, 2021 3.83 3.90 3.78 3.84
3526 NASDAQ OPK Mon, Jun 21, 2021 3.76 3.79 3.69 3.78
3525 NASDAQ OPK Fri, Jun 18, 2021 3.76 3.80 3.59 3.70
3524 NASDAQ OPK Thu, Jun 17, 2021 3.74 3.84 3.71 3.84
3523 NASDAQ OPK Wed, Jun 16, 2021 3.68 3.78 3.64 3.77
3522 NASDAQ OPK Tue, Jun 15, 2021 3.70 3.73 3.59 3.69
3521 NASDAQ OPK Mon, Jun 14, 2021 3.72 3.73 3.57 3.63
3520 NASDAQ OPK Fri, Jun 11, 2021 3.77 3.79 3.69 3.72
3519 NASDAQ OPK Thu, Jun 10, 2021 3.79 3.79 3.66 3.78
3518 NASDAQ OPK Wed, Jun 9, 2021 3.78 3.88 3.77 3.79
3517 NASDAQ OPK Tue, Jun 8, 2021 3.84 3.87 3.68 3.80
3516 NASDAQ OPK Mon, Jun 7, 2021 3.61 3.87 3.57 3.83
3515 NASDAQ OPK Fri, Jun 4, 2021 3.68 3.71 3.60 3.61
3514 NASDAQ OPK Thu, Jun 3, 2021 3.72 3.77 3.65 3.67
3513 NASDAQ OPK Wed, Jun 2, 2021 3.64 3.78 3.57 3.77
3512 NASDAQ OPK Tue, Jun 1, 2021 3.85 3.86 3.58 3.61
3511 NASDAQ OPK Fri, May 28, 2021 3.87 3.97 3.81 3.82
3510 NASDAQ OPK Thu, May 27, 2021 3.88 3.89 3.81 3.88
3509 NASDAQ OPK Wed, May 26, 2021 3.70 3.88 3.69 3.86
3508 NASDAQ OPK Tue, May 25, 2021 3.80 3.82 3.61 3.64
3507 NASDAQ OPK Mon, May 24, 2021 3.71 3.81 3.70 3.76
3506 NASDAQ OPK Fri, May 21, 2021 3.72 3.78 3.65 3.65
3505 NASDAQ OPK Thu, May 20, 2021 3.63 3.70 3.61 3.69
3504 NASDAQ OPK Wed, May 19, 2021 3.56 3.65 3.53 3.60
3503 NASDAQ OPK Tue, May 18, 2021 3.61 3.72 3.59 3.61
3502 NASDAQ OPK Mon, May 17, 2021 3.64 3.71 3.55 3.61
3501 NASDAQ OPK Fri, May 14, 2021 3.41 3.71 3.41 3.70
3500 NASDAQ OPK Thu, May 13, 2021 3.35 3.47 3.32 3.41
3499 NASDAQ OPK Wed, May 12, 2021 3.38 3.52 3.32 3.33
3498 NASDAQ OPK Tue, May 11, 2021 3.49 3.54 3.40 3.42
3497 NASDAQ OPK Mon, May 10, 2021 3.81 3.81 3.52 3.54
3496 NASDAQ OPK Fri, May 7, 2021 3.92 3.93 3.77 3.80
3495 NASDAQ OPK Thu, May 6, 2021 4.06 4.09 3.89 4.00
3494 NASDAQ OPK Wed, May 5, 2021 4.03 4.17 3.95 4.08
3493 NASDAQ OPK Tue, May 4, 2021 4.06 4.08 3.89 3.96
3492 NASDAQ OPK Mon, May 3, 2021 4.16 4.21 4.04 4.09
3491 NASDAQ OPK Fri, Apr 30, 2021 4.11 4.17 4.05 4.10
3490 NASDAQ OPK Thu, Apr 29, 2021 4.15 4.21 3.97 4.11
3489 NASDAQ OPK Wed, Apr 28, 2021 4.30 4.30 4.16 4.16
3488 NASDAQ OPK Tue, Apr 27, 2021 4.34 4.38 4.24 4.27
3487 NASDAQ OPK Mon, Apr 26, 2021 4.26 4.33 4.24 4.32
3486 NASDAQ OPK Fri, Apr 23, 2021 4.36 4.41 4.23 4.27
3485 NASDAQ OPK Thu, Apr 22, 2021 4.33 4.52 4.25 4.37
3484 NASDAQ OPK Wed, Apr 21, 2021 4.10 4.35 4.07 4.34
3483 NASDAQ OPK Tue, Apr 20, 2021 4.17 4.20 4.05 4.13
3482 NASDAQ OPK Mon, Apr 19, 2021 4.25 4.35 4.12 4.20
3481 NASDAQ OPK Fri, Apr 16, 2021 4.24 4.38 4.20 4.34
3480 NASDAQ OPK Thu, Apr 15, 2021 4.27 4.42 4.21 4.32
3479 NASDAQ OPK Wed, Apr 14, 2021 4.14 4.29 4.13 4.21
3478 NASDAQ OPK Tue, Apr 13, 2021 4.07 4.14 3.99 4.13
3477 NASDAQ OPK Mon, Apr 12, 2021 4.16 4.16 3.94 4.06
3476 NASDAQ OPK Fri, Apr 9, 2021 4.24 4.27 4.12 4.18
3475 NASDAQ OPK Thu, Apr 8, 2021 4.30 4.32 4.20 4.27
3474 NASDAQ OPK Wed, Apr 7, 2021 4.38 4.38 4.23 4.27
3473 NASDAQ OPK Tue, Apr 6, 2021 4.50 4.54 4.35 4.37
3472 NASDAQ OPK Mon, Apr 5, 2021 4.46 4.63 4.42 4.55
3471 NASDAQ OPK Thu, Apr 1, 2021 4.36 4.45 4.33 4.38
3470 NASDAQ OPK Wed, Mar 31, 2021 4.22 4.41 4.22 4.29
3469 NASDAQ OPK Tue, Mar 30, 2021 4.26 4.26 4.13 4.22
3468 NASDAQ OPK Mon, Mar 29, 2021 4.46 4.46 4.15 4.25
3467 NASDAQ OPK Fri, Mar 26, 2021 4.66 4.68 4.37 4.46
3466 NASDAQ OPK Thu, Mar 25, 2021 4.28 4.55 4.25 4.53
3465 NASDAQ OPK Wed, Mar 24, 2021 4.74 4.74 4.38 4.38
3464 NASDAQ OPK Tue, Mar 23, 2021 4.91 4.93 4.62 4.65
3463 NASDAQ OPK Mon, Mar 22, 2021 4.90 5.09 4.88 4.94
3462 NASDAQ OPK Fri, Mar 19, 2021 4.64 4.92 4.61 4.85
3461 NASDAQ OPK Thu, Mar 18, 2021 4.84 4.89 4.58 4.63
3460 NASDAQ OPK Wed, Mar 17, 2021 4.62 4.90 4.57 4.90
3459 NASDAQ OPK Tue, Mar 16, 2021 4.70 4.75 4.52 4.64
3458 NASDAQ OPK Mon, Mar 15, 2021 4.51 4.86 4.46 4.72
3457 NASDAQ OPK Fri, Mar 12, 2021 4.40 4.46 4.27 4.44
3456 NASDAQ OPK Thu, Mar 11, 2021 4.40 4.45 4.33 4.44
3455 NASDAQ OPK Wed, Mar 10, 2021 4.53 4.62 4.27 4.31
3454 NASDAQ OPK Tue, Mar 9, 2021 4.46 4.62 4.41 4.52
3453 NASDAQ OPK Mon, Mar 8, 2021 4.23 4.45 4.16 4.35
3452 NASDAQ OPK Fri, Mar 5, 2021 4.18 4.23 3.83 4.22
3451 NASDAQ OPK Thu, Mar 4, 2021 4.28 4.53 4.07 4.19
3450 NASDAQ OPK Wed, Mar 3, 2021 4.57 4.60 4.32 4.32
3449 NASDAQ OPK Tue, Mar 2, 2021 4.69 4.83 4.61 4.62
3448 NASDAQ OPK Mon, Mar 1, 2021 4.57 4.75 4.55 4.70
3447 NASDAQ OPK Fri, Feb 26, 2021 4.63 4.66 4.43 4.50
3446 NASDAQ OPK Thu, Feb 25, 2021 4.52 4.75 4.38 4.42
3445 NASDAQ OPK Wed, Feb 24, 2021 4.62 4.72 4.51 4.58
3444 NASDAQ OPK Tue, Feb 23, 2021 4.60 4.76 4.38 4.57
3443 NASDAQ OPK Mon, Feb 22, 2021 4.99 5.14 4.63 4.73
3442 NASDAQ OPK Fri, Feb 19, 2021 5.09 5.33 4.66 4.81
3441 NASDAQ OPK Thu, Feb 18, 2021 5.49 5.62 5.35 5.36
3440 NASDAQ OPK Wed, Feb 17, 2021 5.61 5.66 5.45 5.57
3439 NASDAQ OPK Tue, Feb 16, 2021 5.66 5.79 5.49 5.66
3438 NASDAQ OPK Fri, Feb 12, 2021 5.52 5.74 5.45 5.61
3437 NASDAQ OPK Thu, Feb 11, 2021 5.67 5.77 5.48 5.52
3436 NASDAQ OPK Wed, Feb 10, 2021 5.79 5.88 5.51 5.68
3435 NASDAQ OPK Tue, Feb 9, 2021 5.50 5.77 5.41 5.70
3434 NASDAQ OPK Mon, Feb 8, 2021 5.40 5.62 5.27 5.59
3433 NASDAQ OPK Fri, Feb 5, 2021 5.19 5.35 5.14 5.30
3432 NASDAQ OPK Thu, Feb 4, 2021 5.34 5.42 5.08 5.16
3431 NASDAQ OPK Wed, Feb 3, 2021 5.35 5.57 5.24 5.32
3430 NASDAQ OPK Tue, Feb 2, 2021 6.02 6.07 5.21 5.27
3429 NASDAQ OPK Mon, Feb 1, 2021 5.64 6.13 5.53 5.99
3428 NASDAQ OPK Fri, Jan 29, 2021 5.46 5.66 5.24 5.41
3427 NASDAQ OPK Thu, Jan 28, 2021 5.62 5.99 5.15 5.38
3426 NASDAQ OPK Wed, Jan 27, 2021 5.10 6.27 5.06 5.56
3425 NASDAQ OPK Tue, Jan 26, 2021 5.09 5.52 4.85 5.26
3424 NASDAQ OPK Mon, Jan 25, 2021 4.41 5.05 4.41 5.02
3423 NASDAQ OPK Fri, Jan 22, 2021 4.35 4.43 4.30 4.41
3422 NASDAQ OPK Thu, Jan 21, 2021 4.48 4.50 4.30 4.38
3421 NASDAQ OPK Wed, Jan 20, 2021 4.51 4.58 4.40 4.46
3420 NASDAQ OPK Tue, Jan 19, 2021 4.56 4.58 4.42 4.54
3419 NASDAQ OPK Fri, Jan 15, 2021 4.62 4.78 4.54 4.55
3418 NASDAQ OPK Thu, Jan 14, 2021 4.43 4.59 4.40 4.52
3417 NASDAQ OPK Wed, Jan 13, 2021 4.42 4.64 4.40 4.44
3416 NASDAQ OPK Tue, Jan 12, 2021 4.33 4.47 4.29 4.47
3415 NASDAQ OPK Mon, Jan 11, 2021 4.41 4.43 4.29 4.36
3414 NASDAQ OPK Fri, Jan 8, 2021 4.51 4.60 4.31 4.40
3413 NASDAQ OPK Thu, Jan 7, 2021 4.47 4.54 4.40 4.48
3412 NASDAQ OPK Wed, Jan 6, 2021 4.23 4.50 4.22 4.40
3411 NASDAQ OPK Tue, Jan 5, 2021 4.14 4.32 4.10 4.25
3410 NASDAQ OPK Mon, Jan 4, 2021 4.03 4.32 4.03 4.20
3409 NASDAQ OPK Thu, Dec 31, 2020 4.08 4.11 3.91 3.95
3408 NASDAQ OPK Wed, Dec 30, 2020 3.96 4.12 3.96 4.04
3407 NASDAQ OPK Tue, Dec 29, 2020 4.03 4.27 3.88 3.95
3406 NASDAQ OPK Mon, Dec 28, 2020 4.29 4.33 3.92 3.92
3405 NASDAQ OPK Thu, Dec 24, 2020 4.28 4.39 4.22 4.23
3404 NASDAQ OPK Wed, Dec 23, 2020 4.58 4.58 4.10 4.26
3403 NASDAQ OPK Tue, Dec 22, 2020 4.51 4.77 4.46 4.56
3402 NASDAQ OPK Mon, Dec 21, 2020 4.51 4.59 4.38 4.55
3401 NASDAQ OPK Fri, Dec 18, 2020 4.46 4.71 4.38 4.59
3400 NASDAQ OPK Thu, Dec 17, 2020 4.51 4.53 4.34 4.50
3399 NASDAQ OPK Wed, Dec 16, 2020 4.51 4.54 4.39 4.48
3398 NASDAQ OPK Tue, Dec 15, 2020 4.61 4.61 4.41 4.55
3397 NASDAQ OPK Mon, Dec 14, 2020 4.51 4.64 4.50 4.56
3396 NASDAQ OPK Fri, Dec 11, 2020 4.64 4.69 4.43 4.45
3395 NASDAQ OPK Thu, Dec 10, 2020 4.66 4.74 4.60 4.69
3394 NASDAQ OPK Wed, Dec 9, 2020 4.79 4.87 4.48 4.60
3393 NASDAQ OPK Tue, Dec 8, 2020 4.61 4.76 4.59 4.75
3392 NASDAQ OPK Mon, Dec 7, 2020 4.83 4.84 4.54 4.59
3391 NASDAQ OPK Fri, Dec 4, 2020 4.65 4.92 4.62 4.76
3390 NASDAQ OPK Thu, Dec 3, 2020 4.80 4.81 4.52 4.62
3389 NASDAQ OPK Wed, Dec 2, 2020 4.31 4.87 4.17 4.87
3388 NASDAQ OPK Tue, Dec 1, 2020 4.64 4.69 4.24 4.27
3387 NASDAQ OPK Mon, Nov 30, 2020 4.22 4.69 4.13 4.64
3386 NASDAQ OPK Fri, Nov 27, 2020 3.96 4.15 3.95 4.13
3385 NASDAQ OPK Wed, Nov 25, 2020 3.96 3.98 3.90 3.95
3384 NASDAQ OPK Tue, Nov 24, 2020 4.00 4.07 3.88 3.91
3383 NASDAQ OPK Mon, Nov 23, 2020 3.90 4.16 3.89 3.99
3382 NASDAQ OPK Fri, Nov 20, 2020 3.72 3.96 3.72 3.94
3381 NASDAQ OPK Thu, Nov 19, 2020 3.83 3.92 3.68 3.79
3380 NASDAQ OPK Wed, Nov 18, 2020 3.96 4.03 3.83 3.83
3379 NASDAQ OPK Tue, Nov 17, 2020 3.95 4.05 3.88 3.96
3378 NASDAQ OPK Mon, Nov 16, 2020 3.92 3.99 3.79 3.96
3377 NASDAQ OPK Fri, Nov 13, 2020 3.78 4.05 3.77 3.99
3376 NASDAQ OPK Thu, Nov 12, 2020 3.66 3.80 3.65 3.73
3375 NASDAQ OPK Wed, Nov 11, 2020 3.76 3.81 3.54 3.70
3374 NASDAQ OPK Tue, Nov 10, 2020 3.28 3.97 3.25 3.79
3373 NASDAQ OPK Mon, Nov 9, 2020 3.14 3.36 3.02 3.27
3372 NASDAQ OPK Fri, Nov 6, 2020 3.73 3.79 3.64 3.64
3371 NASDAQ OPK Thu, Nov 5, 2020 3.80 3.83 3.65 3.77
3370 NASDAQ OPK Wed, Nov 4, 2020 3.53 3.81 3.52 3.77
3369 NASDAQ OPK Tue, Nov 3, 2020 3.45 3.60 3.39 3.56
3368 NASDAQ OPK Mon, Nov 2, 2020 3.55 3.62 3.44 3.46
3367 NASDAQ OPK Fri, Oct 30, 2020 3.83 3.85 3.30 3.52
3366 NASDAQ OPK Thu, Oct 29, 2020 4.03 4.25 3.93 4.20
3365 NASDAQ OPK Wed, Oct 28, 2020 4.10 4.13 3.92 4.00
3364 NASDAQ OPK Tue, Oct 27, 2020 4.33 4.34 4.07 4.14
3363 NASDAQ OPK Mon, Oct 26, 2020 4.28 4.45 4.24 4.31
3362 NASDAQ OPK Fri, Oct 23, 2020 4.28 4.33 4.16 4.30
3361 NASDAQ OPK Thu, Oct 22, 2020 4.20 4.34 4.20 4.27
3360 NASDAQ OPK Wed, Oct 21, 2020 4.39 4.47 4.16 4.18
3359 NASDAQ OPK Tue, Oct 20, 2020 4.67 4.70 4.32 4.45
3358 NASDAQ OPK Mon, Oct 19, 2020 4.38 4.76 4.34 4.59
3357 NASDAQ OPK Fri, Oct 16, 2020 4.20 4.32 4.17 4.30
3356 NASDAQ OPK Thu, Oct 15, 2020 4.07 4.24 4.03 4.22
3355 NASDAQ OPK Wed, Oct 14, 2020 4.21 4.24 4.05 4.07
3354 NASDAQ OPK Tue, Oct 13, 2020 3.93 4.27 3.89 4.23
3353 NASDAQ OPK Mon, Oct 12, 2020 4.58 4.60 4.03 4.08
3352 NASDAQ OPK Fri, Oct 9, 2020 4.62 4.72 4.57 4.62
3351 NASDAQ OPK Thu, Oct 8, 2020 4.61 4.65 4.49 4.57
3350 NASDAQ OPK Wed, Oct 7, 2020 4.42 4.58 4.33 4.40
3349 NASDAQ OPK Tue, Oct 6, 2020 4.28 4.51 4.20 4.35
3348 NASDAQ OPK Mon, Oct 5, 2020 3.96 4.17 3.96 4.16
3347 NASDAQ OPK Fri, Oct 2, 2020 3.86 4.03 3.82 3.90
3346 NASDAQ OPK Thu, Oct 1, 2020 3.75 3.89 3.70 3.89
3345 NASDAQ OPK Wed, Sep 30, 2020 3.56 3.74 3.54 3.69
3344 NASDAQ OPK Tue, Sep 29, 2020 3.24 3.51 3.21 3.43
3343 NASDAQ OPK Mon, Sep 28, 2020 3.20 3.24 3.13 3.18
3342 NASDAQ OPK Fri, Sep 25, 2020 3.10 3.24 3.05 3.22
3341 NASDAQ OPK Thu, Sep 24, 2020 3.10 3.17 3.02 3.07
3340 NASDAQ OPK Wed, Sep 23, 2020 3.18 3.22 3.05 3.05
3339 NASDAQ OPK Tue, Sep 22, 2020 3.30 3.31 3.12 3.22
3338 NASDAQ OPK Mon, Sep 21, 2020 3.15 3.32 3.09 3.25
3337 NASDAQ OPK Fri, Sep 18, 2020 3.16 3.20 3.02 3.17
3336 NASDAQ OPK Thu, Sep 17, 2020 3.10 3.20 3.08 3.13
3335 NASDAQ OPK Wed, Sep 16, 2020 3.15 3.34 3.12 3.18
3334 NASDAQ OPK Tue, Sep 15, 2020 3.37 3.42 3.12 3.15
3333 NASDAQ OPK Mon, Sep 14, 2020 3.06 3.17 2.98 3.17
3332 NASDAQ OPK Fri, Sep 11, 2020 3.09 3.13 2.93 2.99
3331 NASDAQ OPK Thu, Sep 10, 2020 3.11 3.23 3.05 3.06
3330 NASDAQ OPK Wed, Sep 9, 2020 3.24 3.31 3.04 3.12
3329 NASDAQ OPK Tue, Sep 8, 2020 2.94 3.33 2.94 3.19
3328 NASDAQ OPK Fri, Sep 4, 2020 3.06 3.11 2.84 3.04
3327 NASDAQ OPK Thu, Sep 3, 2020 3.19 3.21 3.02 3.09
3326 NASDAQ OPK Wed, Sep 2, 2020 3.14 3.35 3.11 3.27
3325 NASDAQ OPK Tue, Sep 1, 2020 3.18 3.26 3.06 3.14
3324 NASDAQ OPK Mon, Aug 31, 2020 3.23 3.37 3.19 3.24
3323 NASDAQ OPK Fri, Aug 28, 2020 3.35 3.39 3.15 3.34
3322 NASDAQ OPK Thu, Aug 27, 2020 3.83 3.84 3.05 3.31
3321 NASDAQ OPK Wed, Aug 26, 2020 4.24 4.37 3.94 4.02
3320 NASDAQ OPK Tue, Aug 25, 2020 4.59 4.67 4.32 4.39
3319 NASDAQ OPK Mon, Aug 24, 2020 4.67 4.85 4.55 4.74
3318 NASDAQ OPK Fri, Aug 21, 2020 4.91 4.99 4.79 4.86
3317 NASDAQ OPK Thu, Aug 20, 2020 5.02 5.07 4.91 4.93
3316 NASDAQ OPK Wed, Aug 19, 2020 5.02 5.14 4.98 5.07
3315 NASDAQ OPK Tue, Aug 18, 2020 5.19 5.21 4.75 5.01
3314 NASDAQ OPK Mon, Aug 17, 2020 5.12 5.28 4.94 5.24
3313 NASDAQ OPK Fri, Aug 14, 2020 4.95 4.98 4.78 4.80
3312 NASDAQ OPK Thu, Aug 13, 2020 4.68 5.00 4.64 4.86
3311 NASDAQ OPK Wed, Aug 12, 2020 5.00 5.05 4.47 4.72
3310 NASDAQ OPK Tue, Aug 11, 2020 5.38 5.38 4.95 4.97
3309 NASDAQ OPK Mon, Aug 10, 2020 5.67 5.70 5.39 5.46
3308 NASDAQ OPK Fri, Aug 7, 2020 5.65 5.76 5.51 5.63
3307 NASDAQ OPK Thu, Aug 6, 2020 5.47 5.88 5.45 5.66
3306 NASDAQ OPK Wed, Aug 5, 2020 5.39 5.50 5.31 5.45
3305 NASDAQ OPK Tue, Aug 4, 2020 5.36 5.44 5.22 5.36
3304 NASDAQ OPK Mon, Aug 3, 2020 5.28 5.50 5.20 5.35
3303 NASDAQ OPK Fri, Jul 31, 2020 5.62 5.86 4.85 5.15
3302 NASDAQ OPK Thu, Jul 30, 2020 5.72 6.02 5.66 5.91
3301 NASDAQ OPK Wed, Jul 29, 2020 5.58 5.90 5.45 5.79
3300 NASDAQ OPK Tue, Jul 28, 2020 5.81 5.96 5.56 5.58
3299 NASDAQ OPK Mon, Jul 27, 2020 5.36 5.97 5.33 5.85
3298 NASDAQ OPK Fri, Jul 24, 2020 5.46 5.53 5.17 5.30
3297 NASDAQ OPK Thu, Jul 23, 2020 5.52 5.90 5.44 5.60
3296 NASDAQ OPK Wed, Jul 22, 2020 5.70 5.70 5.35 5.56
3295 NASDAQ OPK Tue, Jul 21, 2020 5.71 6.47 5.30 5.96
3294 NASDAQ OPK Mon, Jul 20, 2020 4.92 5.09 4.70 4.94
3293 NASDAQ OPK Fri, Jul 17, 2020 4.03 4.83 4.02 4.60
3292 NASDAQ OPK Thu, Jul 16, 2020 4.02 4.13 3.99 4.03
3291 NASDAQ OPK Wed, Jul 15, 2020 4.15 4.16 3.96 4.08
3290 NASDAQ OPK Tue, Jul 14, 2020 3.91 4.04 3.77 4.04
3289 NASDAQ OPK Mon, Jul 13, 2020 4.14 4.22 3.87 3.87
3288 NASDAQ OPK Fri, Jul 10, 2020 3.96 4.14 3.91 4.02
3287 NASDAQ OPK Thu, Jul 9, 2020 4.23 4.27 3.91 4.02
3286 NASDAQ OPK Wed, Jul 8, 2020 3.82 4.21 3.75 4.08
3285 NASDAQ OPK Tue, Jul 7, 2020 3.79 3.85 3.68 3.83
3284 NASDAQ OPK Mon, Jul 6, 2020 3.69 3.88 3.64 3.76
3283 NASDAQ OPK Thu, Jul 2, 2020 3.50 3.71 3.32 3.54
3282 NASDAQ OPK Wed, Jul 1, 2020 3.72 4.04 3.32 3.43
3281 NASDAQ OPK Tue, Jun 30, 2020 3.00 3.52 2.99 3.41
3280 NASDAQ OPK Mon, Jun 29, 2020 2.79 3.07 2.75 2.95
3279 NASDAQ OPK Fri, Jun 26, 2020 2.65 2.85 2.63 2.78
3278 NASDAQ OPK Thu, Jun 25, 2020 2.56 2.69 2.51 2.68
3277 NASDAQ OPK Wed, Jun 24, 2020 2.60 2.69 2.53 2.56
3276 NASDAQ OPK Tue, Jun 23, 2020 2.64 2.73 2.59 2.63
3275 NASDAQ OPK Mon, Jun 22, 2020 2.46 2.64 2.38 2.63
3274 NASDAQ OPK Fri, Jun 19, 2020 2.55 2.57 2.38 2.38
3273 NASDAQ OPK Thu, Jun 18, 2020 2.54 2.63 2.53 2.56
3272 NASDAQ OPK Wed, Jun 17, 2020 2.50 2.62 2.50 2.56
3271 NASDAQ OPK Tue, Jun 16, 2020 2.65 2.66 2.49 2.55
3270 NASDAQ OPK Mon, Jun 15, 2020 2.41 2.60 2.38 2.60
3269 NASDAQ OPK Fri, Jun 12, 2020 2.60 2.62 2.33 2.48
3268 NASDAQ OPK Thu, Jun 11, 2020 2.66 2.69 2.46 2.49
3267 NASDAQ OPK Wed, Jun 10, 2020 2.63 2.90 2.61 2.77
3266 NASDAQ OPK Tue, Jun 9, 2020 2.86 2.90 2.57 2.64
3265 NASDAQ OPK Mon, Jun 8, 2020 2.41 2.71 2.41 2.70
3264 NASDAQ OPK Fri, Jun 5, 2020 2.30 2.42 2.27 2.35
3263 NASDAQ OPK Thu, Jun 4, 2020 2.27 2.32 2.18 2.27
3262 NASDAQ OPK Wed, Jun 3, 2020 2.40 2.44 2.26 2.26
3261 NASDAQ OPK Tue, Jun 2, 2020 2.40 2.49 2.36 2.42
3260 NASDAQ OPK Mon, Jun 1, 2020 2.44 2.47 2.33 2.42
3259 NASDAQ OPK Fri, May 29, 2020 2.21 2.30 2.16 2.28
3258 NASDAQ OPK Thu, May 28, 2020 2.26 2.27 2.15 2.15
3257 NASDAQ OPK Wed, May 27, 2020 2.34 2.37 2.08 2.29
3256 NASDAQ OPK Tue, May 26, 2020 2.47 2.49 2.30 2.32
3255 NASDAQ OPK Fri, May 22, 2020 2.66 2.66 2.46 2.56
3254 NASDAQ OPK Thu, May 21, 2020 2.73 2.78 2.62 2.66
3253 NASDAQ OPK Wed, May 20, 2020 2.67 2.79 2.64 2.72
3252 NASDAQ OPK Tue, May 19, 2020 2.74 2.80 2.59 2.60
3251 NASDAQ OPK Mon, May 18, 2020 2.72 2.85 2.61 2.77
3250 NASDAQ OPK Fri, May 15, 2020 2.58 2.68 2.45 2.62
3249 NASDAQ OPK Thu, May 14, 2020 2.38 2.74 2.32 2.56
3248 NASDAQ OPK Wed, May 13, 2020 2.52 2.59 2.22 2.32
3247 NASDAQ OPK Tue, May 12, 2020 2.37 2.65 2.36 2.43
3246 NASDAQ OPK Mon, May 11, 2020 2.10 2.43 2.09 2.39
3245 NASDAQ OPK Fri, May 8, 2020 2.13 2.13 2.00 2.10
3244 NASDAQ OPK Thu, May 7, 2020 2.19 2.31 1.91 1.95
3243 NASDAQ OPK Wed, May 6, 2020 2.40 2.42 2.31 2.34
3242 NASDAQ OPK Tue, May 5, 2020 2.41 2.49 2.28 2.30
3241 NASDAQ OPK Mon, May 4, 2020 2.15 2.36 2.09 2.36
3240 NASDAQ OPK Fri, May 1, 2020 2.16 2.20 2.03 2.13
3239 NASDAQ OPK Thu, Apr 30, 2020 2.23 2.26 2.16 2.22
3238 NASDAQ OPK Wed, Apr 29, 2020 2.23 2.38 2.06 2.25
3237 NASDAQ OPK Tue, Apr 28, 2020 2.25 2.34 2.12 2.17
3236 NASDAQ OPK Mon, Apr 27, 2020 2.10 2.27 2.04 2.20
3235 NASDAQ OPK Fri, Apr 24, 2020 2.08 2.09 1.94 2.06
3234 NASDAQ OPK Thu, Apr 23, 2020 2.11 2.20 2.02 2.06
3233 NASDAQ OPK Wed, Apr 22, 2020 2.03 2.10 1.97 2.08
3232 NASDAQ OPK Tue, Apr 21, 2020 2.08 2.11 1.91 1.98
3231 NASDAQ OPK Mon, Apr 20, 2020 1.70 2.06 1.68 1.98
3230 NASDAQ OPK Fri, Apr 17, 2020 1.68 1.71 1.58 1.70
3229 NASDAQ OPK Thu, Apr 16, 2020 1.62 1.72 1.60 1.68
3228 NASDAQ OPK Wed, Apr 15, 2020 1.59 1.68 1.41 1.63
3227 NASDAQ OPK Tue, Apr 14, 2020 1.50 1.74 1.49 1.71
3226 NASDAQ OPK Mon, Apr 13, 2020 1.44 1.49 1.39 1.48
3225 NASDAQ OPK Thu, Apr 9, 2020 1.40 1.45 1.36 1.43
3224 NASDAQ OPK Wed, Apr 8, 2020 1.29 1.40 1.27 1.39
3223 NASDAQ OPK Tue, Apr 7, 2020 1.36 1.36 1.25 1.27
3222 NASDAQ OPK Mon, Apr 6, 2020 1.26 1.35 1.20 1.35
3221 NASDAQ OPK Fri, Apr 3, 2020 1.20 1.29 1.12 1.16
3220 NASDAQ OPK Thu, Apr 2, 2020 1.20 1.20 1.14 1.15
3219 NASDAQ OPK Wed, Apr 1, 2020 1.28 1.28 1.20 1.21
3218 NASDAQ OPK Tue, Mar 31, 2020 1.35 1.35 1.30 1.34
3217 NASDAQ OPK Mon, Mar 30, 2020 1.37 1.39 1.32 1.36
3216 NASDAQ OPK Fri, Mar 27, 2020 1.38 1.45 1.37 1.40
3215 NASDAQ OPK Thu, Mar 26, 2020 1.38 1.41 1.35 1.38
3214 NASDAQ OPK Wed, Mar 25, 2020 1.40 1.45 1.35 1.36
3213 NASDAQ OPK Tue, Mar 24, 2020 1.44 1.48 1.37 1.42
3212 NASDAQ OPK Mon, Mar 23, 2020 1.44 1.45 1.35 1.40
3211 NASDAQ OPK Fri, Mar 20, 2020 1.54 1.69 1.37 1.40
3210 NASDAQ OPK Thu, Mar 19, 2020 1.47 1.60 1.43 1.47
3209 NASDAQ OPK Wed, Mar 18, 2020 1.72 1.77 1.43 1.57
3208 NASDAQ OPK Tue, Mar 17, 2020 1.73 1.84 1.54 1.81
3207 NASDAQ OPK Mon, Mar 16, 2020 1.79 2.10 1.61 1.70
3206 NASDAQ OPK Fri, Mar 13, 2020 2.12 2.18 1.61 1.90
3205 NASDAQ OPK Thu, Mar 12, 2020 1.64 1.66 1.40 1.42
3204 NASDAQ OPK Wed, Mar 11, 2020 1.63 1.94 1.60 1.69
3203 NASDAQ OPK Tue, Mar 10, 2020 1.93 2.00 1.52 1.71
3202 NASDAQ OPK Mon, Mar 9, 2020 2.84 2.90 2.06 2.22
3201 NASDAQ OPK Fri, Mar 6, 2020 2.79 2.91 2.22 2.32
3200 NASDAQ OPK Thu, Mar 5, 2020 1.57 2.19 1.55 2.06
3199 NASDAQ OPK Wed, Mar 4, 2020 1.51 1.72 1.49 1.66
3198 NASDAQ OPK Tue, Mar 3, 2020 1.55 1.58 1.45 1.48
3197 NASDAQ OPK Mon, Mar 2, 2020 1.50 1.56 1.46 1.56
3196 NASDAQ OPK Fri, Feb 28, 2020 1.54 1.54 1.44 1.50
3195 NASDAQ OPK Thu, Feb 27, 2020 1.41 1.58 1.38 1.44
3194 NASDAQ OPK Wed, Feb 26, 2020 1.43 1.43 1.37 1.38
3193 NASDAQ OPK Tue, Feb 25, 2020 1.52 1.53 1.36 1.39
3192 NASDAQ OPK Mon, Feb 24, 2020 1.55 1.56 1.48 1.50
3191 NASDAQ OPK Fri, Feb 21, 2020 1.60 1.64 1.56 1.63
3190 NASDAQ OPK Thu, Feb 20, 2020 1.58 1.60 1.53 1.58
3189 NASDAQ OPK Wed, Feb 19, 2020 1.60 1.61 1.58 1.60
3188 NASDAQ OPK Tue, Feb 18, 2020 1.59 1.59 1.55 1.59
3187 NASDAQ OPK Fri, Feb 14, 2020 1.58 1.59 1.54 1.57
3186 NASDAQ OPK Thu, Feb 13, 2020 1.61 1.62 1.57 1.57
3185 NASDAQ OPK Wed, Feb 12, 2020 1.61 1.64 1.60 1.62
3184 NASDAQ OPK Tue, Feb 11, 2020 1.63 1.65 1.59 1.61
3183 NASDAQ OPK Mon, Feb 10, 2020 1.59 1.62 1.56 1.62
3182 NASDAQ OPK Fri, Feb 7, 2020 1.54 1.62 1.52 1.60
3181 NASDAQ OPK Thu, Feb 6, 2020 1.61 1.67 1.51 1.52
3180 NASDAQ OPK Wed, Feb 5, 2020 1.56 1.63 1.56 1.62
3179 NASDAQ OPK Tue, Feb 4, 2020 1.50 1.56 1.50 1.55
3178 NASDAQ OPK Mon, Feb 3, 2020 1.47 1.51 1.45 1.50
3177 NASDAQ OPK Fri, Jan 31, 2020 1.48 1.50 1.42 1.45
3176 NASDAQ OPK Thu, Jan 30, 2020 1.50 1.51 1.45 1.48
3175 NASDAQ OPK Wed, Jan 29, 2020 1.60 1.61 1.52 1.52
3174 NASDAQ OPK Tue, Jan 28, 2020 1.60 1.66 1.59 1.61
3173 NASDAQ OPK Mon, Jan 27, 2020 1.57 1.62 1.55 1.57
3172 NASDAQ OPK Fri, Jan 24, 2020 1.66 1.68 1.57 1.58
3171 NASDAQ OPK Thu, Jan 23, 2020 1.71 1.73 1.61 1.62
3170 NASDAQ OPK Wed, Jan 22, 2020 1.60 1.77 1.58 1.73
3169 NASDAQ OPK Tue, Jan 21, 2020 1.54 1.62 1.53 1.58
3168 NASDAQ OPK Fri, Jan 17, 2020 1.61 1.63 1.56 1.56
3167 NASDAQ OPK Thu, Jan 16, 2020 1.55 1.59 1.52 1.59
3166 NASDAQ OPK Wed, Jan 15, 2020 1.50 1.58 1.50 1.55
3165 NASDAQ OPK Tue, Jan 14, 2020 1.45 1.52 1.42 1.50
3164 NASDAQ OPK Mon, Jan 13, 2020 1.45 1.46 1.44 1.44
3163 NASDAQ OPK Fri, Jan 10, 2020 1.46 1.49 1.44 1.45
3162 NASDAQ OPK Thu, Jan 9, 2020 1.46 1.49 1.45 1.47
3161 NASDAQ OPK Wed, Jan 8, 2020 1.47 1.49 1.45 1.48
3160 NASDAQ OPK Tue, Jan 7, 2020 1.50 1.50 1.46 1.49
3159 NASDAQ OPK Mon, Jan 6, 2020 1.46 1.50 1.43 1.49
3158 NASDAQ OPK Fri, Jan 3, 2020 1.48 1.51 1.46 1.47
3157 NASDAQ OPK Thu, Jan 2, 2020 1.49 1.51 1.46 1.49
3156 NASDAQ OPK Tue, Dec 31, 2019 1.46 1.50 1.44 1.47
3155 NASDAQ OPK Mon, Dec 30, 2019 1.50 1.51 1.46 1.46
3154 NASDAQ OPK Fri, Dec 27, 2019 1.56 1.57 1.50 1.50
3153 NASDAQ OPK Thu, Dec 26, 2019 1.58 1.59 1.55 1.57
3152 NASDAQ OPK Tue, Dec 24, 2019 1.51 1.62 1.50 1.61
3151 NASDAQ OPK Mon, Dec 23, 2019 1.50 1.55 1.49 1.53
3150 NASDAQ OPK Fri, Dec 20, 2019 1.50 1.55 1.48 1.53
3149 NASDAQ OPK Thu, Dec 19, 2019 1.50 1.51 1.46 1.50
3148 NASDAQ OPK Wed, Dec 18, 2019 1.51 1.55 1.48 1.50
3147 NASDAQ OPK Tue, Dec 17, 2019 1.58 1.58 1.50 1.53
3146 NASDAQ OPK Mon, Dec 16, 2019 1.57 1.58 1.53 1.58
3145 NASDAQ OPK Fri, Dec 13, 2019 1.54 1.58 1.51 1.56
3144 NASDAQ OPK Thu, Dec 12, 2019 1.51 1.57 1.50 1.53
3143 NASDAQ OPK Wed, Dec 11, 2019 1.58 1.58 1.48 1.51
3142 NASDAQ OPK Tue, Dec 10, 2019 1.60 1.61 1.54 1.56
3141 NASDAQ OPK Mon, Dec 9, 2019 1.59 1.63 1.58 1.59
3140 NASDAQ OPK Fri, Dec 6, 2019 1.62 1.65 1.59 1.61
3139 NASDAQ OPK Thu, Dec 5, 2019 1.67 1.68 1.59 1.59
3138 NASDAQ OPK Wed, Dec 4, 2019 1.62 1.65 1.59 1.64
3137 NASDAQ OPK Tue, Dec 3, 2019 1.55 1.62 1.54 1.60
3136 NASDAQ OPK Mon, Dec 2, 2019 1.61 1.62 1.55 1.56
3135 NASDAQ OPK Fri, Nov 29, 2019 1.59 1.65 1.58 1.59
3134 NASDAQ OPK Wed, Nov 27, 2019 1.60 1.63 1.59 1.61
3133 NASDAQ OPK Tue, Nov 26, 2019 1.63 1.64 1.54 1.59
3132 NASDAQ OPK Mon, Nov 25, 2019 1.65 1.68 1.60 1.63
3131 NASDAQ OPK Fri, Nov 22, 2019 1.61 1.64 1.60 1.61
3130 NASDAQ OPK Thu, Nov 21, 2019 1.58 1.61 1.54 1.60
3129 NASDAQ OPK Wed, Nov 20, 2019 1.52 1.63 1.51 1.57
3128 NASDAQ OPK Tue, Nov 19, 2019 1.49 1.53 1.45 1.53
3127 NASDAQ OPK Mon, Nov 18, 2019 1.48 1.50 1.46 1.48
3126 NASDAQ OPK Fri, Nov 15, 2019 1.45 1.51 1.42 1.49
3125 NASDAQ OPK Thu, Nov 14, 2019 1.44 1.45 1.42 1.43
3124 NASDAQ OPK Wed, Nov 13, 2019 1.44 1.45 1.42 1.43
3123 NASDAQ OPK Tue, Nov 12, 2019 1.48 1.48 1.43 1.43
3122 NASDAQ OPK Mon, Nov 11, 2019 1.47 1.48 1.45 1.46
3121 NASDAQ OPK Fri, Nov 8, 2019 1.48 1.53 1.46 1.47
3120 NASDAQ OPK Thu, Nov 7, 2019 1.50 1.51 1.46 1.51
3119 NASDAQ OPK Wed, Nov 6, 2019 1.53 1.64 1.45 1.48
3118 NASDAQ OPK Tue, Nov 5, 2019 1.53 1.56 1.52 1.56
3117 NASDAQ OPK Mon, Nov 4, 2019 1.52 1.55 1.47 1.51
3116 NASDAQ OPK Fri, Nov 1, 2019 1.44 1.50 1.42 1.50
3115 NASDAQ OPK Thu, Oct 31, 2019 1.45 1.48 1.41 1.42
3114 NASDAQ OPK Wed, Oct 30, 2019 1.50 1.52 1.42 1.45
3113 NASDAQ OPK Tue, Oct 29, 2019 1.55 1.56 1.45 1.46
3112 NASDAQ OPK Mon, Oct 28, 2019 1.49 1.55 1.46 1.52
3111 NASDAQ OPK Fri, Oct 25, 2019 1.39 1.46 1.33 1.44
3110 NASDAQ OPK Thu, Oct 24, 2019 1.90 1.90 1.60 1.63
3109 NASDAQ OPK Wed, Oct 23, 2019 1.99 2.01 1.81 1.90
3108 NASDAQ OPK Tue, Oct 22, 2019 2.16 2.20 2.07 2.15
3107 NASDAQ OPK Mon, Oct 21, 2019 2.36 2.43 2.06 2.13
3106 NASDAQ OPK Fri, Oct 18, 2019 2.15 2.18 2.04 2.10
3105 NASDAQ OPK Thu, Oct 17, 2019 2.14 2.17 2.08 2.17
3104 NASDAQ OPK Wed, Oct 16, 2019 2.07 2.13 2.05 2.07
3103 NASDAQ OPK Tue, Oct 15, 2019 2.04 2.10 2.04 2.07
3102 NASDAQ OPK Mon, Oct 14, 2019 2.05 2.09 2.00 2.04
3101 NASDAQ OPK Fri, Oct 11, 2019 2.08 2.13 2.04 2.05
3100 NASDAQ OPK Thu, Oct 10, 2019 2.00 2.06 1.98 2.05
3099 NASDAQ OPK Wed, Oct 9, 2019 2.00 2.05 1.98 2.00
3098 NASDAQ OPK Tue, Oct 8, 2019 2.09 2.14 1.99 1.99
3097 NASDAQ OPK Mon, Oct 7, 2019 2.13 2.23 2.07 2.11
3096 NASDAQ OPK Fri, Oct 4, 2019 2.11 2.16 2.05 2.15
3095 NASDAQ OPK Thu, Oct 3, 2019 2.12 2.16 2.03 2.10
3094 NASDAQ OPK Wed, Oct 2, 2019 1.99 2.14 1.98 2.13
3093 NASDAQ OPK Tue, Oct 1, 2019 2.09 2.16 2.00 2.00
3092 NASDAQ OPK Mon, Sep 30, 2019 2.10 2.12 2.03 2.09
3091 NASDAQ OPK Fri, Sep 27, 2019 2.05 2.15 2.04 2.08
3090 NASDAQ OPK Thu, Sep 26, 2019 2.15 2.15 2.06 2.07
3089 NASDAQ OPK Wed, Sep 25, 2019 2.12 2.15 2.09 2.12
3088 NASDAQ OPK Tue, Sep 24, 2019 2.15 2.15 2.07 2.11
3087 NASDAQ OPK Mon, Sep 23, 2019 2.01 2.15 2.01 2.13
3086 NASDAQ OPK Fri, Sep 20, 2019 2.04 2.08 2.00 2.02
3085 NASDAQ OPK Thu, Sep 19, 2019 2.11 2.12 2.01 2.05
3084 NASDAQ OPK Wed, Sep 18, 2019 2.18 2.21 2.09 2.10
3083 NASDAQ OPK Tue, Sep 17, 2019 2.27 2.27 2.16 2.17
3082 NASDAQ OPK Mon, Sep 16, 2019 2.17 2.30 2.16 2.27
3081 NASDAQ OPK Fri, Sep 13, 2019 2.19 2.27 2.12 2.17
3080 NASDAQ OPK Thu, Sep 12, 2019 2.13 2.20 2.08 2.18
3079 NASDAQ OPK Wed, Sep 11, 2019 2.01 2.15 2.00 2.14
3078 NASDAQ OPK Tue, Sep 10, 2019 1.90 2.02 1.87 2.01
3077 NASDAQ OPK Mon, Sep 9, 2019 1.85 1.94 1.81 1.91
3076 NASDAQ OPK Fri, Sep 6, 2019 1.88 1.92 1.84 1.86
3075 NASDAQ OPK Thu, Sep 5, 2019 1.84 1.87 1.84 1.86
3074 NASDAQ OPK Wed, Sep 4, 2019 1.84 1.87 1.82 1.83
3073 NASDAQ OPK Tue, Sep 3, 2019 1.81 1.84 1.79 1.81
3072 NASDAQ OPK Fri, Aug 30, 2019 1.80 1.85 1.79 1.84
3071 NASDAQ OPK Thu, Aug 29, 2019 1.83 1.83 1.77 1.81
3070 NASDAQ OPK Wed, Aug 28, 2019 1.76 1.82 1.75 1.78
3069 NASDAQ OPK Tue, Aug 27, 2019 1.85 1.85 1.75 1.75
3068 NASDAQ OPK Mon, Aug 26, 2019 1.85 1.86 1.80 1.84
3067 NASDAQ OPK Fri, Aug 23, 2019 1.94 1.96 1.83 1.83
3066 NASDAQ OPK Thu, Aug 22, 2019 2.02 2.03 1.92 1.95
3065 NASDAQ OPK Wed, Aug 21, 2019 2.02 2.04 1.98 2.02
3064 NASDAQ OPK Tue, Aug 20, 2019 2.01 2.01 1.96 2.00
3063 NASDAQ OPK Mon, Aug 19, 2019 1.97 2.03 1.95 2.02
3062 NASDAQ OPK Fri, Aug 16, 2019 1.92 1.98 1.90 1.96
3061 NASDAQ OPK Thu, Aug 15, 2019 1.89 1.92 1.84 1.90
3060 NASDAQ OPK Wed, Aug 14, 2019 1.82 1.92 1.82 1.87
3059 NASDAQ OPK Tue, Aug 13, 2019 1.84 1.87 1.81 1.86
3058 NASDAQ OPK Mon, Aug 12, 2019 1.81 1.87 1.78 1.83
3057 NASDAQ OPK Fri, Aug 9, 2019 1.91 1.93 1.77 1.79
3056 NASDAQ OPK Thu, Aug 8, 2019 1.99 2.03 1.86 1.91
3055 NASDAQ OPK Wed, Aug 7, 2019 1.97 1.98 1.89 1.95
3054 NASDAQ OPK Tue, Aug 6, 2019 2.01 2.03 1.89 1.95
3053 NASDAQ OPK Mon, Aug 5, 2019 1.92 1.98 1.89 1.94
3052 NASDAQ OPK Fri, Aug 2, 2019 2.04 2.09 1.89 1.94
3051 NASDAQ OPK Thu, Aug 1, 2019 2.13 2.18 2.05 2.07
3050 NASDAQ OPK Wed, Jul 31, 2019 2.15 2.18 2.08 2.11
3049 NASDAQ OPK Tue, Jul 30, 2019 2.08 2.16 2.07 2.15
3048 NASDAQ OPK Mon, Jul 29, 2019 2.08 2.11 2.02 2.10
3047 NASDAQ OPK Fri, Jul 26, 2019 2.09 2.13 2.07 2.13
3046 NASDAQ OPK Thu, Jul 25, 2019 2.14 2.15 2.06 2.08
3045 NASDAQ OPK Wed, Jul 24, 2019 2.08 2.16 2.06 2.14
3044 NASDAQ OPK Tue, Jul 23, 2019 2.09 2.15 2.07 2.08
3043 NASDAQ OPK Mon, Jul 22, 2019 2.07 2.10 2.05 2.07
3042 NASDAQ OPK Fri, Jul 19, 2019 2.09 2.14 2.07 2.07
3041 NASDAQ OPK Thu, Jul 18, 2019 2.09 2.12 2.03 2.08
3040 NASDAQ OPK Wed, Jul 17, 2019 2.10 2.12 2.05 2.11
3039 NASDAQ OPK Tue, Jul 16, 2019 2.16 2.18 2.10 2.10
3038 NASDAQ OPK Mon, Jul 15, 2019 2.19 2.20 2.13 2.14
3037 NASDAQ OPK Fri, Jul 12, 2019 2.15 2.19 2.10 2.16
3036 NASDAQ OPK Thu, Jul 11, 2019 2.24 2.27 2.14 2.14
3035 NASDAQ OPK Wed, Jul 10, 2019 2.31 2.32 2.20 2.25
3034 NASDAQ OPK Tue, Jul 9, 2019 2.20 2.27 2.18 2.27
3033 NASDAQ OPK Mon, Jul 8, 2019 2.32 2.33 2.17 2.20
3032 NASDAQ OPK Fri, Jul 5, 2019 2.36 2.41 2.32 2.36
3031 NASDAQ OPK Wed, Jul 3, 2019 2.41 2.41 2.33 2.37
3030 NASDAQ OPK Tue, Jul 2, 2019 2.47 2.52 2.39 2.41
3029 NASDAQ OPK Mon, Jul 1, 2019 2.50 2.53 2.44 2.47
3028 NASDAQ OPK Fri, Jun 28, 2019 2.25 2.48 2.21 2.44
3027 NASDAQ OPK Thu, Jun 27, 2019 2.04 2.26 2.02 2.22
3026 NASDAQ OPK Wed, Jun 26, 2019 2.00 2.04 1.99 2.01
3025 NASDAQ OPK Tue, Jun 25, 2019 2.03 2.07 1.98 2.00
3024 NASDAQ OPK Mon, Jun 24, 2019 2.02 2.07 2.01 2.03
3023 NASDAQ OPK Fri, Jun 21, 2019 2.03 2.06 2.00 2.01
3022 NASDAQ OPK Thu, Jun 20, 2019 2.06 2.07 2.01 2.03
3021 NASDAQ OPK Wed, Jun 19, 2019 2.05 2.07 1.99 2.01
3020 NASDAQ OPK Tue, Jun 18, 2019 2.00 2.08 1.98 2.04
3019 NASDAQ OPK Mon, Jun 17, 2019 1.90 2.00 1.89 2.00
3018 NASDAQ OPK Fri, Jun 14, 2019 1.93 1.96 1.89 1.90
3017 NASDAQ OPK Thu, Jun 13, 2019 1.93 1.96 1.89 1.95
3016 NASDAQ OPK Wed, Jun 12, 2019 1.80 1.94 1.80 1.92
3015 NASDAQ OPK Tue, Jun 11, 2019 1.95 1.96 1.86 1.86
3014 NASDAQ OPK Mon, Jun 10, 2019 1.94 1.98 1.91 1.92
3013 NASDAQ OPK Fri, Jun 7, 2019 1.94 1.94 1.86 1.93
3012 NASDAQ OPK Thu, Jun 6, 2019 1.89 1.97 1.89 1.94
3011 NASDAQ OPK Wed, Jun 5, 2019 1.97 1.98 1.90 1.95
3010 NASDAQ OPK Tue, Jun 4, 2019 1.89 2.00 1.85 1.98
3009 NASDAQ OPK Mon, Jun 3, 2019 1.77 1.87 1.76 1.87
3008 NASDAQ OPK Fri, May 31, 2019 1.85 1.85 1.73 1.79
3007 NASDAQ OPK Thu, May 30, 2019 1.87 1.89 1.85 1.85
3006 NASDAQ OPK Wed, May 29, 2019 1.86 1.88 1.82 1.85
3005 NASDAQ OPK Tue, May 28, 2019 1.96 1.96 1.88 1.88
3004 NASDAQ OPK Fri, May 24, 2019 1.95 1.97 1.92 1.96
3003 NASDAQ OPK Thu, May 23, 2019 1.97 1.98 1.90 1.92
3002 NASDAQ OPK Wed, May 22, 2019 2.09 2.11 1.96 1.98
3001 NASDAQ OPK Tue, May 21, 2019 2.01 2.10 2.00 2.10
3000 NASDAQ OPK Mon, May 20, 2019 2.02 2.08 1.99 1.99
2999 NASDAQ OPK Fri, May 17, 2019 2.02 2.12 2.01 2.05
2998 NASDAQ OPK Thu, May 16, 2019 2.06 2.08 2.00 2.03
2997 NASDAQ OPK Wed, May 15, 2019 1.98 2.09 1.92 2.08
2996 NASDAQ OPK Tue, May 14, 2019 1.99 2.04 1.92 2.01
2995 NASDAQ OPK Mon, May 13, 2019 2.05 2.07 1.96 1.96
2994 NASDAQ OPK Fri, May 10, 2019 2.14 2.14 2.01 2.12
2993 NASDAQ OPK Thu, May 9, 2019 2.13 2.14 2.01 2.09
2992 NASDAQ OPK Wed, May 8, 2019 2.21 2.29 2.07 2.09
2991 NASDAQ OPK Tue, May 7, 2019 2.44 2.47 2.36 2.36
2990 NASDAQ OPK Mon, May 6, 2019 2.35 2.50 2.33 2.49
2989 NASDAQ OPK Fri, May 3, 2019 2.37 2.48 2.36 2.41
2988 NASDAQ OPK Thu, May 2, 2019 2.29 2.37 2.23 2.37
2987 NASDAQ OPK Wed, May 1, 2019 2.38 2.40 2.30 2.30
2986 NASDAQ OPK Tue, Apr 30, 2019 2.40 2.41 2.32 2.39
2985 NASDAQ OPK Mon, Apr 29, 2019 2.45 2.46 2.40 2.42
2984 NASDAQ OPK Fri, Apr 26, 2019 2.35 2.47 2.33 2.46
2983 NASDAQ OPK Thu, Apr 25, 2019 2.33 2.36 2.29 2.36
2982 NASDAQ OPK Wed, Apr 24, 2019 2.42 2.42 2.32 2.33
2981 NASDAQ OPK Tue, Apr 23, 2019 2.36 2.41 2.31 2.41
2980 NASDAQ OPK Mon, Apr 22, 2019 2.39 2.41 2.29 2.34
2979 NASDAQ OPK Thu, Apr 18, 2019 2.41 2.44 2.35 2.40
2978 NASDAQ OPK Wed, Apr 17, 2019 2.50 2.51 2.39 2.41
2977 NASDAQ OPK Tue, Apr 16, 2019 2.48 2.52 2.41 2.47
2976 NASDAQ OPK Mon, Apr 15, 2019 2.49 2.52 2.46 2.46
2975 NASDAQ OPK Fri, Apr 12, 2019 2.48 2.52 2.45 2.48
2974 NASDAQ OPK Thu, Apr 11, 2019 2.53 2.54 2.44 2.44
2973 NASDAQ OPK Wed, Apr 10, 2019 2.51 2.56 2.50 2.54
2972 NASDAQ OPK Tue, Apr 9, 2019 2.53 2.56 2.50 2.50
2971 NASDAQ OPK Mon, Apr 8, 2019 2.58 2.64 2.53 2.53
2970 NASDAQ OPK Fri, Apr 5, 2019 2.54 2.61 2.54 2.61
2969 NASDAQ OPK Thu, Apr 4, 2019 2.57 2.58 2.50 2.54
2968 NASDAQ OPK Wed, Apr 3, 2019 2.56 2.58 2.51 2.57
2967 NASDAQ OPK Tue, Apr 2, 2019 2.59 2.59 2.49 2.52
2966 NASDAQ OPK Mon, Apr 1, 2019 2.64 2.64 2.57 2.58
2965 NASDAQ OPK Fri, Mar 29, 2019 2.55 2.64 2.52 2.61
2964 NASDAQ OPK Thu, Mar 28, 2019 2.46 2.53 2.43 2.53
2963 NASDAQ OPK Wed, Mar 27, 2019 2.57 2.59 2.46 2.46
2962 NASDAQ OPK Tue, Mar 26, 2019 2.54 2.57 2.50 2.57
2961 NASDAQ OPK Mon, Mar 25, 2019 2.52 2.57 2.48 2.52
2960 NASDAQ OPK Fri, Mar 22, 2019 2.64 2.73 2.52 2.53
2959 NASDAQ OPK Thu, Mar 21, 2019 2.63 2.72 2.56 2.72
2958 NASDAQ OPK Wed, Mar 20, 2019 2.48 2.53 2.41 2.46
2957 NASDAQ OPK Tue, Mar 19, 2019 2.55 2.58 2.49 2.51
2956 NASDAQ OPK Mon, Mar 18, 2019 2.52 2.55 2.45 2.52
2955 NASDAQ OPK Fri, Mar 15, 2019 2.48 2.55 2.47 2.51
2954 NASDAQ OPK Thu, Mar 14, 2019 2.53 2.57 2.40 2.42
2953 NASDAQ OPK Wed, Mar 13, 2019 2.54 2.59 2.50 2.55
2952 NASDAQ OPK Tue, Mar 12, 2019 2.55 2.57 2.50 2.54
2951 NASDAQ OPK Mon, Mar 11, 2019 2.48 2.57 2.44 2.57
2950 NASDAQ OPK Fri, Mar 8, 2019 2.53 2.53 2.43 2.47
2949 NASDAQ OPK Thu, Mar 7, 2019 2.56 2.60 2.50 2.54
2948 NASDAQ OPK Wed, Mar 6, 2019 2.65 2.68 2.54 2.56
2947 NASDAQ OPK Tue, Mar 5, 2019 2.69 2.72 2.63 2.65
2946 NASDAQ OPK Mon, Mar 4, 2019 2.79 2.80 2.60 2.67
2945 NASDAQ OPK Fri, Mar 1, 2019 2.56 2.78 2.54 2.74
2944 NASDAQ OPK Thu, Feb 28, 2019 2.66 2.67 2.47 2.55
2943 NASDAQ OPK Wed, Feb 27, 2019 2.84 2.86 2.72 2.78
2942 NASDAQ OPK Tue, Feb 26, 2019 2.84 2.88 2.81 2.83
2941 NASDAQ OPK Mon, Feb 25, 2019 2.84 2.86 2.75 2.84
2940 NASDAQ OPK Fri, Feb 22, 2019 2.74 2.81 2.72 2.81
2939 NASDAQ OPK Thu, Feb 21, 2019 2.75 2.81 2.73 2.74
2938 NASDAQ OPK Wed, Feb 20, 2019 2.84 2.87 2.72 2.75
2937 NASDAQ OPK Tue, Feb 19, 2019 2.84 2.88 2.79 2.82
2936 NASDAQ OPK Fri, Feb 15, 2019 2.80 2.86 2.76 2.86
2935 NASDAQ OPK Thu, Feb 14, 2019 2.75 2.82 2.71 2.79
2934 NASDAQ OPK Wed, Feb 13, 2019 2.83 2.84 2.76 2.77
2933 NASDAQ OPK Tue, Feb 12, 2019 2.75 2.85 2.74 2.83
2932 NASDAQ OPK Mon, Feb 11, 2019 2.75 2.77 2.67 2.74
2931 NASDAQ OPK Fri, Feb 8, 2019 2.73 2.77 2.63 2.69
2930 NASDAQ OPK Thu, Feb 7, 2019 2.81 2.87 2.68 2.76
2929 NASDAQ OPK Wed, Feb 6, 2019 2.96 2.96 2.82 2.83
2928 NASDAQ OPK Tue, Feb 5, 2019 2.90 2.99 2.80 2.97
2927 NASDAQ OPK Mon, Feb 4, 2019 3.59 3.63 3.51 3.52
2926 NASDAQ OPK Fri, Feb 1, 2019 3.58 3.75 3.31 3.59
2925 NASDAQ OPK Thu, Jan 31, 2019 3.72 3.82 3.63 3.68
2924 NASDAQ OPK Wed, Jan 30, 2019 3.58 3.72 3.56 3.72
2923 NASDAQ OPK Tue, Jan 29, 2019 3.49 3.56 3.35 3.55
2922 NASDAQ OPK Mon, Jan 28, 2019 3.76 3.78 3.47 3.47
2921 NASDAQ OPK Fri, Jan 25, 2019 3.74 3.87 3.64 3.81
2920 NASDAQ OPK Thu, Jan 24, 2019 3.63 3.76 3.62 3.69
2919 NASDAQ OPK Wed, Jan 23, 2019 3.69 3.72 3.53 3.63
2918 NASDAQ OPK Tue, Jan 22, 2019 3.76 3.80 3.65 3.68
2917 NASDAQ OPK Fri, Jan 18, 2019 3.72 3.83 3.72 3.80
2916 NASDAQ OPK Thu, Jan 17, 2019 3.71 3.77 3.63 3.72
2915 NASDAQ OPK Wed, Jan 16, 2019 3.79 3.89 3.70 3.73
2914 NASDAQ OPK Tue, Jan 15, 2019 3.71 3.80 3.68 3.78
2913 NASDAQ OPK Mon, Jan 14, 2019 3.78 3.85 3.69 3.70
2912 NASDAQ OPK Fri, Jan 11, 2019 3.76 3.94 3.69 3.83
2911 NASDAQ OPK Thu, Jan 10, 2019 3.64 3.77 3.56 3.75
2910 NASDAQ OPK Wed, Jan 9, 2019 3.64 3.73 3.59 3.65
2909 NASDAQ OPK Tue, Jan 8, 2019 3.67 3.72 3.53 3.62
2908 NASDAQ OPK Mon, Jan 7, 2019 3.53 3.74 3.38 3.67
2907 NASDAQ OPK Fri, Jan 4, 2019 3.35 3.54 3.28 3.54
2906 NASDAQ OPK Thu, Jan 3, 2019 3.29 3.35 3.17 3.28
2905 NASDAQ OPK Wed, Jan 2, 2019 2.93 3.43 2.93 3.29
2904 NASDAQ OPK Mon, Dec 31, 2018 3.19 3.21 2.84 3.01
2903 NASDAQ OPK Fri, Dec 28, 2018 2.93 3.53 2.85 3.16
2902 NASDAQ OPK Thu, Dec 27, 2018 2.46 2.54 2.34 2.53
2901 NASDAQ OPK Wed, Dec 26, 2018 2.50 2.56 2.34 2.54
2900 NASDAQ OPK Mon, Dec 24, 2018 2.46 2.55 2.42 2.46
2899 NASDAQ OPK Fri, Dec 21, 2018 2.70 2.70 2.55 2.56
2898 NASDAQ OPK Thu, Dec 20, 2018 2.84 2.90 2.60 2.71
2897 NASDAQ OPK Wed, Dec 19, 2018 3.03 3.22 2.82 2.85
2896 NASDAQ OPK Tue, Dec 18, 2018 3.24 3.24 2.97 3.01
2895 NASDAQ OPK Mon, Dec 17, 2018 3.22 3.35 3.17 3.17
2894 NASDAQ OPK Fri, Dec 14, 2018 3.37 3.42 3.27 3.29
2893 NASDAQ OPK Thu, Dec 13, 2018 3.31 3.45 3.31 3.41
2892 NASDAQ OPK Wed, Dec 12, 2018 3.35 3.44 3.29 3.34
2891 NASDAQ OPK Tue, Dec 11, 2018 3.38 3.44 3.25 3.33
2890 NASDAQ OPK Mon, Dec 10, 2018 3.33 3.36 3.18 3.32
2889 NASDAQ OPK Fri, Dec 7, 2018 3.22 3.42 3.22 3.28
2888 NASDAQ OPK Thu, Dec 6, 2018 3.48 3.49 3.18 3.25
2887 NASDAQ OPK Tue, Dec 4, 2018 3.73 3.81 3.48 3.49
2886 NASDAQ OPK Mon, Dec 3, 2018 3.77 3.83 3.69 3.77
2885 NASDAQ OPK Fri, Nov 30, 2018 3.63 3.75 3.58 3.74
2884 NASDAQ OPK Thu, Nov 29, 2018 3.41 3.69 3.37 3.63
2883 NASDAQ OPK Wed, Nov 28, 2018 3.33 3.46 3.28 3.46
2882 NASDAQ OPK Tue, Nov 27, 2018 3.44 3.46 3.25 3.26
2881 NASDAQ OPK Mon, Nov 26, 2018 3.47 3.55 3.36 3.48
2880 NASDAQ OPK Fri, Nov 23, 2018 3.49 3.61 3.39 3.44
2879 NASDAQ OPK Wed, Nov 21, 2018 3.61 3.62 3.47 3.55
2878 NASDAQ OPK Tue, Nov 20, 2018 3.38 3.63 3.36 3.54
2877 NASDAQ OPK Mon, Nov 19, 2018 3.52 3.56 3.37 3.45
2876 NASDAQ OPK Fri, Nov 16, 2018 3.50 3.63 3.41 3.56
2875 NASDAQ OPK Thu, Nov 15, 2018 3.25 3.53 3.25 3.53
2874 NASDAQ OPK Wed, Nov 14, 2018 3.50 3.54 3.21 3.23
2873 NASDAQ OPK Tue, Nov 13, 2018 3.71 3.74 3.42 3.49
2872 NASDAQ OPK Mon, Nov 12, 2018 3.37 3.86 3.33 3.73
2871 NASDAQ OPK Fri, Nov 9, 2018 3.46 3.47 3.00 3.09
2870 NASDAQ OPK Thu, Nov 8, 2018 3.86 3.92 3.47 3.49
2869 NASDAQ OPK Wed, Nov 7, 2018 3.72 3.92 3.71 3.86
2868 NASDAQ OPK Tue, Nov 6, 2018 3.51 3.79 3.50 3.72
2867 NASDAQ OPK Mon, Nov 5, 2018 3.75 3.75 3.49 3.55
2866 NASDAQ OPK Fri, Nov 2, 2018 3.68 3.79 3.64 3.77
2865 NASDAQ OPK Thu, Nov 1, 2018 3.40 3.77 3.39 3.66
2864 NASDAQ OPK Wed, Oct 31, 2018 3.44 3.48 3.31 3.38
2863 NASDAQ OPK Tue, Oct 30, 2018 3.37 3.56 3.29 3.41
2862 NASDAQ OPK Mon, Oct 29, 2018 3.41 3.57 3.32 3.39
2861 NASDAQ OPK Fri, Oct 26, 2018 3.29 3.45 3.23 3.34
2860 NASDAQ OPK Thu, Oct 25, 2018 3.17 3.43 3.14 3.42
2859 NASDAQ OPK Wed, Oct 24, 2018 3.46 3.47 3.08 3.10
2858 NASDAQ OPK Tue, Oct 23, 2018 3.50 3.57 3.42 3.44
2857 NASDAQ OPK Mon, Oct 22, 2018 3.64 3.65 3.48 3.58
2856 NASDAQ OPK Fri, Oct 19, 2018 3.63 3.83 3.54 3.59
2855 NASDAQ OPK Thu, Oct 18, 2018 3.77 3.78 3.62 3.67
2854 NASDAQ OPK Wed, Oct 17, 2018 3.84 3.84 3.71 3.80
2853 NASDAQ OPK Tue, Oct 16, 2018 3.69 3.90 3.67 3.87
2852 NASDAQ OPK Mon, Oct 15, 2018 3.59 3.76 3.57 3.68
2851 NASDAQ OPK Fri, Oct 12, 2018 3.61 3.71 3.48 3.65
2850 NASDAQ OPK Thu, Oct 11, 2018 3.48 3.71 3.47 3.54
2849 NASDAQ OPK Wed, Oct 10, 2018 3.45 3.63 3.44 3.48
2848 NASDAQ OPK Tue, Oct 9, 2018 3.67 3.73 3.41 3.47
2847 NASDAQ OPK Mon, Oct 8, 2018 3.44 3.80 3.42 3.67
2846 NASDAQ OPK Fri, Oct 5, 2018 3.49 3.58 3.35 3.45
2845 NASDAQ OPK Thu, Oct 4, 2018 3.57 3.60 3.44 3.48
2844 NASDAQ OPK Wed, Oct 3, 2018 3.43 3.68 3.41 3.64
2843 NASDAQ OPK Tue, Oct 2, 2018 3.40 3.47 3.27 3.40
2842 NASDAQ OPK Mon, Oct 1, 2018 3.42 3.59 3.34 3.43
2841 NASDAQ OPK Fri, Sep 28, 2018 3.26 3.54 3.21 3.46
2840 NASDAQ OPK Thu, Sep 27, 2018 3.66 3.70 3.29 3.29
2839 NASDAQ OPK Wed, Sep 26, 2018 4.00 4.00 3.65 3.72
2838 NASDAQ OPK Tue, Sep 25, 2018 4.16 4.27 3.95 3.99
2837 NASDAQ OPK Mon, Sep 24, 2018 4.30 4.30 3.85 4.13
2836 NASDAQ OPK Fri, Sep 21, 2018 4.30 4.41 4.25 4.32
2835 NASDAQ OPK Thu, Sep 20, 2018 4.52 4.54 4.29 4.32
2834 NASDAQ OPK Wed, Sep 19, 2018 4.14 4.51 4.10 4.44
2833 NASDAQ OPK Tue, Sep 18, 2018 4.33 4.48 4.15 4.22
2832 NASDAQ OPK Mon, Sep 17, 2018 3.90 4.62 3.67 4.49
2831 NASDAQ OPK Fri, Sep 14, 2018 4.00 4.55 3.77 3.90
2830 NASDAQ OPK Fri, Sep 7, 2018 5.55 5.72 4.02 4.58
2829 NASDAQ OPK Thu, Sep 6, 2018 5.78 5.81 5.58 5.59
2828 NASDAQ OPK Wed, Sep 5, 2018 5.86 5.87 5.68 5.80
2827 NASDAQ OPK Tue, Sep 4, 2018 5.97 5.99 5.62 5.86
2826 NASDAQ OPK Fri, Aug 31, 2018 5.87 5.92 5.81 5.92
2825 NASDAQ OPK Thu, Aug 30, 2018 5.96 5.96 5.77 5.89
2824 NASDAQ OPK Wed, Aug 29, 2018 5.85 5.92 5.79 5.89
2823 NASDAQ OPK Tue, Aug 28, 2018 6.16 6.16 5.74 5.79
2822 NASDAQ OPK Mon, Aug 27, 2018 5.72 6.01 5.69 6.00
2821 NASDAQ OPK Fri, Aug 24, 2018 5.85 5.85 5.63 5.63
2820 NASDAQ OPK Thu, Aug 23, 2018 5.89 5.99 5.76 5.85
2819 NASDAQ OPK Wed, Aug 22, 2018 5.73 5.90 5.73 5.89
2818 NASDAQ OPK Tue, Aug 21, 2018 5.58 5.75 5.55 5.72
2817 NASDAQ OPK Mon, Aug 20, 2018 5.58 5.63 5.48 5.59
2816 NASDAQ OPK Fri, Aug 17, 2018 5.46 5.63 5.43 5.61
2815 NASDAQ OPK Thu, Aug 16, 2018 5.28 5.55 5.26 5.49
2814 NASDAQ OPK Wed, Aug 15, 2018 5.27 5.34 5.16 5.26
2813 NASDAQ OPK Tue, Aug 14, 2018 5.43 5.43 5.23 5.38
2812 NASDAQ OPK Mon, Aug 13, 2018 5.41 5.49 5.27 5.39
2811 NASDAQ OPK Fri, Aug 10, 2018 5.41 5.73 5.38 5.42
2810 NASDAQ OPK Thu, Aug 9, 2018 5.57 5.66 5.38 5.50
2809 NASDAQ OPK Wed, Aug 8, 2018 5.78 5.94 5.37 5.49
2808 NASDAQ OPK Tue, Aug 7, 2018 5.59 5.75 5.59 5.62
2807 NASDAQ OPK Mon, Aug 6, 2018 5.95 6.00 5.46 5.51
2806 NASDAQ OPK Fri, Aug 3, 2018 5.77 5.93 5.73 5.89
2805 NASDAQ OPK Thu, Aug 2, 2018 5.72 5.82 5.65 5.80
2804 NASDAQ OPK Wed, Aug 1, 2018 5.51 5.75 5.39 5.72
2803 NASDAQ OPK Tue, Jul 31, 2018 5.18 5.69 5.18 5.62
2802 NASDAQ OPK Mon, Jul 30, 2018 5.03 5.23 4.93 5.18
2801 NASDAQ OPK Fri, Jul 27, 2018 5.08 5.10 4.70 4.95
2800 NASDAQ OPK Thu, Jul 26, 2018 5.40 5.45 4.92 4.97
2799 NASDAQ OPK Wed, Jul 25, 2018 5.56 5.68 5.36 5.39
2798 NASDAQ OPK Tue, Jul 24, 2018 6.02 6.04 5.29 5.58
2797 NASDAQ OPK Mon, Jul 23, 2018 5.97 6.03 5.84 5.96
2796 NASDAQ OPK Fri, Jul 20, 2018 5.95 6.07 5.87 5.89
2795 NASDAQ OPK Thu, Jul 19, 2018 6.06 6.12 5.87 5.96
2794 NASDAQ OPK Wed, Jul 18, 2018 6.25 6.30 5.98 6.13
2793 NASDAQ OPK Tue, Jul 17, 2018 6.05 6.40 6.03 6.29
2792 NASDAQ OPK Mon, Jul 16, 2018 5.95 6.10 5.62 6.05
2791 NASDAQ OPK Fri, Jul 13, 2018 6.23 6.24 5.63 5.86
2790 NASDAQ OPK Thu, Jul 12, 2018 6.17 6.30 6.05 6.21
2789 NASDAQ OPK Wed, Jul 11, 2018 5.68 6.15 5.66 6.01
2788 NASDAQ OPK Tue, Jul 10, 2018 5.56 5.87 5.55 5.79
2787 NASDAQ OPK Mon, Jul 9, 2018 5.27 5.55 5.24 5.52
2786 NASDAQ OPK Fri, Jul 6, 2018 4.81 5.39 4.80 5.21
2785 NASDAQ OPK Thu, Jul 5, 2018 4.79 4.84 4.72 4.83
2784 NASDAQ OPK Tue, Jul 3, 2018 4.71 4.79 4.69 4.76
2783 NASDAQ OPK Mon, Jul 2, 2018 4.68 4.75 4.62 4.72
2782 NASDAQ OPK Fri, Jun 29, 2018 4.84 4.88 4.65 4.70
2781 NASDAQ OPK Thu, Jun 28, 2018 4.67 4.80 4.40 4.77
2780 NASDAQ OPK Wed, Jun 27, 2018 4.79 4.94 4.70 4.70
2779 NASDAQ OPK Tue, Jun 26, 2018 4.75 4.87 4.62 4.81
2778 NASDAQ OPK Mon, Jun 25, 2018 4.49 4.74 4.43 4.70
2777 NASDAQ OPK Fri, Jun 22, 2018 4.51 4.63 4.37 4.57
2776 NASDAQ OPK Thu, Jun 21, 2018 4.80 4.85 4.44 4.46
2775 NASDAQ OPK Wed, Jun 20, 2018 4.37 4.88 4.37 4.79
2774 NASDAQ OPK Tue, Jun 19, 2018 4.40 4.46 4.21 4.35
2773 NASDAQ OPK Mon, Jun 18, 2018 4.35 4.51 4.29 4.44
2772 NASDAQ OPK Fri, Jun 15, 2018 4.57 4.57 4.31 4.40
2771 NASDAQ OPK Thu, Jun 14, 2018 4.48 4.62 4.41 4.48
2770 NASDAQ OPK Wed, Jun 13, 2018 4.34 4.62 4.28 4.45
2769 NASDAQ OPK Tue, Jun 12, 2018 4.21 4.36 4.18 4.33
2768 NASDAQ OPK Mon, Jun 11, 2018 4.26 4.27 4.12 4.21
2767 NASDAQ OPK Fri, Jun 8, 2018 4.08 4.31 4.05 4.26
2766 NASDAQ OPK Thu, Jun 7, 2018 4.07 4.20 4.03 4.05
2765 NASDAQ OPK Wed, Jun 6, 2018 4.17 4.21 4.00 4.07
2764 NASDAQ OPK Tue, Jun 5, 2018 4.15 4.26 4.11 4.13
2763 NASDAQ OPK Mon, Jun 4, 2018 4.03 4.17 3.98 4.11
2762 NASDAQ OPK Fri, Jun 1, 2018 3.92 4.05 3.90 3.97
2761 NASDAQ OPK Thu, May 31, 2018 3.83 3.91 3.76 3.88
2760 NASDAQ OPK Wed, May 30, 2018 3.79 3.94 3.78 3.86
2759 NASDAQ OPK Tue, May 29, 2018 3.67 3.75 3.63 3.72
2758 NASDAQ OPK Fri, May 25, 2018 3.94 3.94 3.68 3.70
2757 NASDAQ OPK Thu, May 24, 2018 3.72 3.76 3.63 3.70
2756 NASDAQ OPK Wed, May 23, 2018 3.70 3.86 3.63 3.65
2755 NASDAQ OPK Tue, May 22, 2018 3.76 3.93 3.69 3.75
2754 NASDAQ OPK Mon, May 21, 2018 4.07 4.11 3.63 3.72
2753 NASDAQ OPK Fri, May 18, 2018 4.71 4.77 3.76 3.99
2752 NASDAQ OPK Thu, May 17, 2018 4.98 5.00 4.82 4.88
2751 NASDAQ OPK Wed, May 16, 2018 4.75 5.02 4.74 4.99
2750 NASDAQ OPK Tue, May 15, 2018 4.70 4.86 4.64 4.72
2749 NASDAQ OPK Mon, May 14, 2018 4.57 4.83 4.55 4.78
2748 NASDAQ OPK Fri, May 11, 2018 4.37 4.57 4.27 4.52
2747 NASDAQ OPK Thu, May 10, 2018 4.18 4.43 4.01 4.35
2746 NASDAQ OPK Wed, May 9, 2018 3.46 4.26 3.38 4.16
2745 NASDAQ OPK Tue, May 8, 2018 3.26 3.30 3.21 3.22
2744 NASDAQ OPK Mon, May 7, 2018 3.16 3.28 3.14 3.28
2743 NASDAQ OPK Fri, May 4, 2018 3.07 3.19 3.06 3.15
2742 NASDAQ OPK Thu, May 3, 2018 3.10 3.15 3.06 3.06
2741 NASDAQ OPK Wed, May 2, 2018 3.09 3.21 3.08 3.13
2740 NASDAQ OPK Tue, May 1, 2018 3.04 3.11 3.02 3.11
2739 NASDAQ OPK Mon, Apr 30, 2018 3.10 3.12 3.04 3.04
2738 NASDAQ OPK Fri, Apr 27, 2018 3.12 3.18 3.10 3.16
2737 NASDAQ OPK Thu, Apr 26, 2018 3.04 3.13 3.01 3.10
2736 NASDAQ OPK Wed, Apr 25, 2018 2.98 3.09 2.93 3.04
2735 NASDAQ OPK Tue, Apr 24, 2018 3.01 3.09 2.92 3.00
2734 NASDAQ OPK Mon, Apr 23, 2018 3.08 3.15 2.98 3.01
2733 NASDAQ OPK Fri, Apr 20, 2018 3.18 3.19 3.08 3.08
2732 NASDAQ OPK Thu, Apr 19, 2018 3.20 3.27 3.15 3.17
2731 NASDAQ OPK Wed, Apr 18, 2018 3.11 3.29 3.10 3.22
2730 NASDAQ OPK Tue, Apr 17, 2018 3.03 3.15 3.01 3.11
2729 NASDAQ OPK Mon, Apr 16, 2018 3.02 3.05 2.91 3.02
2728 NASDAQ OPK Fri, Apr 13, 2018 3.03 3.05 2.98 2.99
2727 NASDAQ OPK Thu, Apr 12, 2018 3.09 3.14 2.99 3.01
2726 NASDAQ OPK Wed, Apr 11, 2018 3.01 3.15 3.01 3.09
2725 NASDAQ OPK Tue, Apr 10, 2018 3.04 3.13 2.98 3.08
2724 NASDAQ OPK Mon, Apr 9, 2018 3.11 3.14 2.97 3.04
2723 NASDAQ OPK Fri, Apr 6, 2018 3.19 3.22 3.05 3.07
2722 NASDAQ OPK Thu, Apr 5, 2018 3.20 3.32 3.12 3.21
2721 NASDAQ OPK Wed, Apr 4, 2018 2.95 3.17 2.95 3.17
2720 NASDAQ OPK Tue, Apr 3, 2018 3.05 3.07 2.91 3.04
2719 NASDAQ OPK Mon, Apr 2, 2018 3.15 3.18 3.02 3.04
2718 NASDAQ OPK Thu, Mar 29, 2018 3.10 3.26 3.10 3.17
2717 NASDAQ OPK Wed, Mar 28, 2018 3.22 3.28 3.01 3.11
2716 NASDAQ OPK Tue, Mar 27, 2018 3.27 3.34 3.16 3.19
2715 NASDAQ OPK Mon, Mar 26, 2018 3.28 3.34 3.14 3.32
2714 NASDAQ OPK Fri, Mar 23, 2018 3.37 3.45 3.24 3.27
2713 NASDAQ OPK Thu, Mar 22, 2018 3.31 3.41 3.27 3.31
2712 NASDAQ OPK Wed, Mar 21, 2018 3.26 3.44 3.24 3.36
2711 NASDAQ OPK Tue, Mar 20, 2018 3.51 3.52 3.26 3.30
2710 NASDAQ OPK Mon, Mar 19, 2018 3.62 3.71 3.40 3.53
2709 NASDAQ OPK Fri, Mar 16, 2018 3.40 3.70 3.34 3.60
2708 NASDAQ OPK Thu, Mar 15, 2018 3.36 3.44 3.25 3.27
2707 NASDAQ OPK Wed, Mar 14, 2018 3.35 3.40 3.26 3.35
2706 NASDAQ OPK Tue, Mar 13, 2018 3.53 3.57 3.30 3.31
2705 NASDAQ OPK Mon, Mar 12, 2018 3.55 3.59 3.41 3.55
2704 NASDAQ OPK Fri, Mar 9, 2018 3.36 3.65 3.34 3.59
2703 NASDAQ OPK Thu, Mar 8, 2018 3.36 3.38 3.24 3.32
2702 NASDAQ OPK Wed, Mar 7, 2018 3.37 3.41 3.20 3.33
2701 NASDAQ OPK Tue, Mar 6, 2018 3.49 3.54 3.35 3.42
2700 NASDAQ OPK Mon, Mar 5, 2018 3.39 3.58 3.32 3.54
2699 NASDAQ OPK Fri, Mar 2, 2018 2.67 3.40 2.66 3.37
2698 NASDAQ OPK Thu, Mar 1, 2018 3.41 3.47 3.16 3.18
2697 NASDAQ OPK Wed, Feb 28, 2018 3.69 3.71 3.39 3.39
2696 NASDAQ OPK Tue, Feb 27, 2018 3.72 3.79 3.69 3.71
2695 NASDAQ OPK Mon, Feb 26, 2018 3.77 3.82 3.67 3.73
2694 NASDAQ OPK Fri, Feb 23, 2018 3.66 3.83 3.65 3.80
2693 NASDAQ OPK Thu, Feb 22, 2018 3.56 3.77 3.55 3.62
2692 NASDAQ OPK Wed, Feb 21, 2018 3.67 3.70 3.57 3.57
2691 NASDAQ OPK Tue, Feb 20, 2018 3.80 3.84 3.68 3.69
2690 NASDAQ OPK Fri, Feb 16, 2018 3.95 3.98 3.83 3.85
2689 NASDAQ OPK Thu, Feb 15, 2018 3.91 3.98 3.90 3.96
2688 NASDAQ OPK Wed, Feb 14, 2018 3.89 3.94 3.80 3.93
2687 NASDAQ OPK Tue, Feb 13, 2018 3.88 3.93 3.80 3.90
2686 NASDAQ OPK Mon, Feb 12, 2018 3.91 4.03 3.81 3.95
2685 NASDAQ OPK Fri, Feb 9, 2018 4.06 4.09 3.61 3.88
2684 NASDAQ OPK Thu, Feb 8, 2018 4.13 4.21 4.01 4.03
2683 NASDAQ OPK Wed, Feb 7, 2018 4.32 4.49 4.13 4.14
2682 NASDAQ OPK Tue, Feb 6, 2018 4.11 4.35 4.03 4.34
2681 NASDAQ OPK Mon, Feb 5, 2018 4.29 4.40 4.01 4.13
2680 NASDAQ OPK Fri, Feb 2, 2018 4.42 4.44 4.25 4.25
2679 NASDAQ OPK Thu, Feb 1, 2018 4.43 4.51 4.33 4.45
2678 NASDAQ OPK Wed, Jan 31, 2018 4.58 4.65 4.41 4.46
2677 NASDAQ OPK Tue, Jan 30, 2018 4.75 4.79 4.56 4.59
2676 NASDAQ OPK Mon, Jan 29, 2018 4.85 4.90 4.73 4.79
2675 NASDAQ OPK Fri, Jan 26, 2018 5.05 5.14 4.84 4.88
2674 NASDAQ OPK Thu, Jan 25, 2018 4.94 5.05 4.86 5.00
2673 NASDAQ OPK Wed, Jan 24, 2018 4.82 5.00 4.80 4.85
2672 NASDAQ OPK Tue, Jan 23, 2018 4.46 4.89 4.46 4.83
2671 NASDAQ OPK Mon, Jan 22, 2018 4.50 4.50 4.32 4.44
2670 NASDAQ OPK Fri, Jan 19, 2018 4.38 4.48 4.33 4.47
2669 NASDAQ OPK Thu, Jan 18, 2018 4.45 4.50 4.31 4.40
2668 NASDAQ OPK Wed, Jan 17, 2018 4.64 4.65 4.28 4.47
2667 NASDAQ OPK Tue, Jan 16, 2018 4.91 4.93 4.55 4.60
2666 NASDAQ OPK Fri, Jan 12, 2018 5.07 5.07 4.90 4.98
2665 NASDAQ OPK Thu, Jan 11, 2018 5.05 5.12 5.00 5.06
2664 NASDAQ OPK Wed, Jan 10, 2018 5.00 5.08 4.92 5.06
2663 NASDAQ OPK Tue, Jan 9, 2018 4.94 5.00 4.87 4.99
2662 NASDAQ OPK Mon, Jan 8, 2018 4.96 5.00 4.85 4.92
2661 NASDAQ OPK Fri, Jan 5, 2018 5.07 5.10 4.93 4.96
2660 NASDAQ OPK Thu, Jan 4, 2018 5.14 5.14 4.95 5.07
2659 NASDAQ OPK Wed, Jan 3, 2018 4.97 5.12 4.92 5.12
2658 NASDAQ OPK Tue, Jan 2, 2018 4.95 4.99 4.90 4.97
2657 NASDAQ OPK Fri, Dec 29, 2017 4.92 5.03 4.89 4.90
2656 NASDAQ OPK Thu, Dec 28, 2017 4.93 5.08 4.91 4.95
2655 NASDAQ OPK Wed, Dec 27, 2017 4.90 4.96 4.84 4.92
2654 NASDAQ OPK Tue, Dec 26, 2017 4.94 4.98 4.87 4.92
2653 NASDAQ OPK Fri, Dec 22, 2017 5.00 5.00 4.85 4.92
2652 NASDAQ OPK Thu, Dec 21, 2017 4.92 5.05 4.91 5.03
2651 NASDAQ OPK Wed, Dec 20, 2017 4.82 4.94 4.80 4.94
2650 NASDAQ OPK Tue, Dec 19, 2017 4.98 4.99 4.79 4.81
2649 NASDAQ OPK Mon, Dec 18, 2017 4.97 5.13 4.91 5.07
2648 NASDAQ OPK Fri, Dec 15, 2017 4.90 5.00 4.83 4.98
2647 NASDAQ OPK Thu, Dec 14, 2017 5.06 5.07 4.82 4.85
2646 NASDAQ OPK Wed, Dec 13, 2017 5.08 5.19 5.07 5.13
2645 NASDAQ OPK Tue, Dec 12, 2017 5.15 5.15 4.97 5.10
2644 NASDAQ OPK Mon, Dec 11, 2017 5.19 5.23 5.13 5.15
2643 NASDAQ OPK Fri, Dec 8, 2017 5.12 5.26 5.08 5.25
2642 NASDAQ OPK Thu, Dec 7, 2017 4.94 5.09 4.94 5.08
2641 NASDAQ OPK Wed, Dec 6, 2017 5.04 5.05 4.90 4.99
2640 NASDAQ OPK Tue, Dec 5, 2017 5.14 5.22 5.03 5.04
2639 NASDAQ OPK Mon, Dec 4, 2017 5.23 5.33 5.12 5.14
2638 NASDAQ OPK Fri, Dec 1, 2017 5.23 5.35 5.09 5.21
2637 NASDAQ OPK Thu, Nov 30, 2017 5.05 5.25 5.05 5.25
2636 NASDAQ OPK Wed, Nov 29, 2017 5.00 5.07 4.91 4.99
2635 NASDAQ OPK Tue, Nov 28, 2017 5.11 5.11 4.90 5.02
2634 NASDAQ OPK Mon, Nov 27, 2017 5.04 5.20 5.02 5.08
2633 NASDAQ OPK Fri, Nov 24, 2017 4.79 5.05 4.77 5.01
2632 NASDAQ OPK Wed, Nov 22, 2017 4.75 4.82 4.74 4.80
2631 NASDAQ OPK Tue, Nov 21, 2017 4.78 4.80 4.71 4.78
2630 NASDAQ OPK Mon, Nov 20, 2017 4.86 4.93 4.76 4.80
2629 NASDAQ OPK Fri, Nov 17, 2017 4.83 5.01 4.80 4.94
2628 NASDAQ OPK Thu, Nov 16, 2017 4.69 4.89 4.60 4.87
2627 NASDAQ OPK Wed, Nov 15, 2017 4.50 4.76 4.50 4.74
2626 NASDAQ OPK Tue, Nov 14, 2017 5.20 5.21 4.55 4.61
2625 NASDAQ OPK Mon, Nov 13, 2017 5.44 5.52 5.25 5.26
2624 NASDAQ OPK Fri, Nov 10, 2017 5.44 5.70 5.44 5.50
2623 NASDAQ OPK Thu, Nov 9, 2017 5.52 5.75 5.35 5.42
2622 NASDAQ OPK Wed, Nov 8, 2017 6.55 6.61 6.45 6.45
2621 NASDAQ OPK Tue, Nov 7, 2017 6.70 6.71 6.55 6.58
2620 NASDAQ OPK Mon, Nov 6, 2017 6.57 6.68 6.55 6.66
2619 NASDAQ OPK Fri, Nov 3, 2017 6.50 6.58 6.36 6.57
2618 NASDAQ OPK Thu, Nov 2, 2017 6.61 6.67 6.48 6.54
2617 NASDAQ OPK Wed, Nov 1, 2017 6.77 6.80 6.52 6.52
2616 NASDAQ OPK Tue, Oct 31, 2017 6.83 6.90 6.64 6.73
2615 NASDAQ OPK Mon, Oct 30, 2017 6.75 6.91 6.68 6.84
2614 NASDAQ OPK Fri, Oct 27, 2017 6.63 6.81 6.58 6.81
2613 NASDAQ OPK Thu, Oct 26, 2017 6.72 6.77 6.56 6.63
2612 NASDAQ OPK Wed, Oct 25, 2017 6.73 6.79 6.61 6.67
2611 NASDAQ OPK Tue, Oct 24, 2017 6.85 6.86 6.74 6.78
2610 NASDAQ OPK Mon, Oct 23, 2017 6.95 6.99 6.87 6.87
2609 NASDAQ OPK Fri, Oct 20, 2017 6.74 6.99 6.72 6.96
2608 NASDAQ OPK Thu, Oct 19, 2017 6.67 6.76 6.60 6.75
2607 NASDAQ OPK Wed, Oct 18, 2017 6.79 6.82 6.59 6.70
2606 NASDAQ OPK Tue, Oct 17, 2017 6.86 6.93 6.72 6.80
2605 NASDAQ OPK Mon, Oct 16, 2017 7.01 7.04 6.83 6.90
2604 NASDAQ OPK Fri, Oct 13, 2017 6.88 7.03 6.82 6.95
2603 NASDAQ OPK Thu, Oct 12, 2017 6.91 6.98 6.79 6.88
2602 NASDAQ OPK Wed, Oct 11, 2017 6.87 6.90 6.76 6.81
2601 NASDAQ OPK Tue, Oct 10, 2017 6.81 6.94 6.76 6.88
2600 NASDAQ OPK Mon, Oct 9, 2017 6.98 7.03 6.81 6.83
2599 NASDAQ OPK Fri, Oct 6, 2017 6.94 7.04 6.90 7.00
2598 NASDAQ OPK Thu, Oct 5, 2017 6.89 7.08 6.89 6.97
2597 NASDAQ OPK Wed, Oct 4, 2017 7.05 7.05 6.86 6.90
2596 NASDAQ OPK Tue, Oct 3, 2017 6.99 7.08 6.92 7.04
2595 NASDAQ OPK Mon, Oct 2, 2017 6.87 7.05 6.84 7.03
2594 NASDAQ OPK Fri, Sep 29, 2017 6.84 7.02 6.81 6.86
2593 NASDAQ OPK Thu, Sep 28, 2017 6.80 7.09 6.76 6.94
2592 NASDAQ OPK Wed, Sep 27, 2017 7.21 7.24 6.78 6.86
2591 NASDAQ OPK Tue, Sep 26, 2017 6.90 7.22 6.89 7.11
2590 NASDAQ OPK Mon, Sep 25, 2017 6.68 6.90 6.65 6.87
2589 NASDAQ OPK Fri, Sep 22, 2017 6.57 6.75 6.44 6.71
2588 NASDAQ OPK Thu, Sep 21, 2017 6.34 6.54 6.34 6.48
2587 NASDAQ OPK Wed, Sep 20, 2017 6.01 6.33 6.01 6.33
2586 NASDAQ OPK Tue, Sep 19, 2017 6.05 6.08 5.96 6.01
2585 NASDAQ OPK Mon, Sep 18, 2017 6.05 6.09 5.99 6.02
2584 NASDAQ OPK Fri, Sep 15, 2017 6.05 6.11 5.97 5.97
2583 NASDAQ OPK Thu, Sep 14, 2017 6.24 6.29 5.85 6.02
2582 NASDAQ OPK Wed, Sep 13, 2017 6.22 6.52 6.20 6.47
2581 NASDAQ OPK Tue, Sep 12, 2017 6.14 6.36 6.14 6.26
2580 NASDAQ OPK Mon, Sep 11, 2017 6.19 6.32 6.14 6.21
2579 NASDAQ OPK Fri, Sep 8, 2017 6.22 6.27 6.11 6.13
2578 NASDAQ OPK Thu, Sep 7, 2017 6.27 6.28 6.18 6.22
2577 NASDAQ OPK Wed, Sep 6, 2017 6.35 6.36 6.27 6.31
2576 NASDAQ OPK Tue, Sep 5, 2017 6.40 6.41 6.25 6.32
2575 NASDAQ OPK Fri, Sep 1, 2017 6.41 6.45 6.25 6.43
2574 NASDAQ OPK Thu, Aug 31, 2017 6.20 6.42 6.16 6.40
2573 NASDAQ OPK Wed, Aug 30, 2017 6.22 6.26 6.16 6.18
2572 NASDAQ OPK Tue, Aug 29, 2017 6.20 6.29 6.16 6.23
2571 NASDAQ OPK Mon, Aug 28, 2017 6.19 6.28 6.14 6.28
2570 NASDAQ OPK Fri, Aug 25, 2017 6.30 6.31 6.13 6.13
2569 NASDAQ OPK Thu, Aug 24, 2017 6.12 6.30 6.07 6.30
2568 NASDAQ OPK Wed, Aug 23, 2017 6.10 6.18 6.06 6.13
2567 NASDAQ OPK Tue, Aug 22, 2017 6.16 6.20 6.09 6.19
2566 NASDAQ OPK Mon, Aug 21, 2017 6.13 6.14 6.00 6.14
2565 NASDAQ OPK Fri, Aug 18, 2017 6.07 6.19 5.91 6.12
2564 NASDAQ OPK Thu, Aug 17, 2017 6.03 6.14 5.85 5.88
2563 NASDAQ OPK Wed, Aug 16, 2017 6.11 6.15 6.01 6.06
2562 NASDAQ OPK Tue, Aug 15, 2017 6.16 6.18 6.05 6.09
2561 NASDAQ OPK Mon, Aug 14, 2017 6.34 6.38 6.13 6.16
2560 NASDAQ OPK Fri, Aug 11, 2017 6.16 6.25 6.04 6.24
2559 NASDAQ OPK Thu, Aug 10, 2017 6.32 6.38 6.11 6.11
2558 NASDAQ OPK Wed, Aug 9, 2017 6.15 6.54 6.04 6.43
2557 NASDAQ OPK Tue, Aug 8, 2017 6.31 6.34 6.10 6.14
2556 NASDAQ OPK Mon, Aug 7, 2017 6.23 6.39 6.22 6.32
2555 NASDAQ OPK Fri, Aug 4, 2017 6.14 6.25 6.04 6.20
2554 NASDAQ OPK Thu, Aug 3, 2017 6.18 6.27 6.11 6.15
2553 NASDAQ OPK Wed, Aug 2, 2017 6.24 6.25 6.10 6.12
2552 NASDAQ OPK Tue, Aug 1, 2017 6.50 6.51 6.19 6.19
2551 NASDAQ OPK Mon, Jul 31, 2017 6.36 6.48 6.29 6.45
2550 NASDAQ OPK Fri, Jul 28, 2017 6.29 6.39 6.23 6.31
2549 NASDAQ OPK Thu, Jul 27, 2017 6.45 6.49 6.28 6.32
2548 NASDAQ OPK Wed, Jul 26, 2017 6.40 6.43 6.31 6.41
2547 NASDAQ OPK Tue, Jul 25, 2017 6.45 6.50 6.38 6.40
2546 NASDAQ OPK Mon, Jul 24, 2017 6.56 6.56 6.38 6.44
2545 NASDAQ OPK Fri, Jul 21, 2017 6.48 6.66 6.43 6.59
2544 NASDAQ OPK Thu, Jul 20, 2017 6.57 6.57 6.35 6.42
2543 NASDAQ OPK Wed, Jul 19, 2017 6.24 6.62 6.24 6.56
2542 NASDAQ OPK Tue, Jul 18, 2017 6.03 6.26 6.03 6.25
2541 NASDAQ OPK Mon, Jul 17, 2017 6.10 6.12 6.00 6.05
2540 NASDAQ OPK Fri, Jul 14, 2017 6.25 6.28 6.10 6.13
2539 NASDAQ OPK Thu, Jul 13, 2017 6.10 6.29 6.01 6.25
2538 NASDAQ OPK Wed, Jul 12, 2017 6.15 6.19 6.04 6.10
2537 NASDAQ OPK Tue, Jul 11, 2017 6.14 6.20 6.05 6.17
2536 NASDAQ OPK Mon, Jul 10, 2017 6.39 6.40 6.16 6.18
2535 NASDAQ OPK Fri, Jul 7, 2017 6.33 6.39 6.29 6.38
2534 NASDAQ OPK Thu, Jul 6, 2017 6.30 6.39 6.22 6.31
2533 NASDAQ OPK Wed, Jul 5, 2017 6.38 6.47 6.29 6.35
2532 NASDAQ OPK Mon, Jul 3, 2017 6.53 6.67 6.40 6.43
2531 NASDAQ OPK Fri, Jun 30, 2017 6.64 6.71 6.54 6.58
2530 NASDAQ OPK Thu, Jun 29, 2017 6.90 6.91 6.58 6.64
2529 NASDAQ OPK Wed, Jun 28, 2017 6.79 6.88 6.73 6.86
2528 NASDAQ OPK Tue, Jun 27, 2017 7.11 7.17 6.70 6.70
2527 NASDAQ OPK Mon, Jun 26, 2017 6.99 7.25 6.98 7.10
2526 NASDAQ OPK Fri, Jun 23, 2017 6.72 6.99 6.71 6.99
2525 NASDAQ OPK Thu, Jun 22, 2017 7.07 7.09 6.64 6.69
2524 NASDAQ OPK Wed, Jun 21, 2017 6.77 7.10 6.77 7.08
2523 NASDAQ OPK Tue, Jun 20, 2017 6.59 6.87 6.53 6.70
2522 NASDAQ OPK Mon, Jun 19, 2017 6.58 6.68 6.51 6.59
2521 NASDAQ OPK Fri, Jun 16, 2017 6.49 6.53 6.38 6.53
2520 NASDAQ OPK Thu, Jun 15, 2017 6.40 6.56 6.31 6.45
2519 NASDAQ OPK Wed, Jun 14, 2017 6.50 6.58 6.49 6.52
2518 NASDAQ OPK Tue, Jun 13, 2017 6.51 6.61 6.48 6.52
2517 NASDAQ OPK Mon, Jun 12, 2017 6.39 6.60 6.36 6.54
2516 NASDAQ OPK Fri, Jun 9, 2017 6.29 6.49 6.25 6.38
2515 NASDAQ OPK Thu, Jun 8, 2017 6.25 6.35 6.24 6.26
2514 NASDAQ OPK Wed, Jun 7, 2017 6.34 6.40 6.20 6.24
2513 NASDAQ OPK Tue, Jun 6, 2017 6.27 6.44 6.18 6.39
2512 NASDAQ OPK Mon, Jun 5, 2017 6.61 6.65 6.25 6.29
2511 NASDAQ OPK Fri, Jun 2, 2017 6.44 6.76 6.39 6.71
2510 NASDAQ OPK Thu, Jun 1, 2017 6.12 6.42 5.99 6.42
2509 NASDAQ OPK Wed, May 31, 2017 6.29 6.33 6.07 6.14
2508 NASDAQ OPK Tue, May 30, 2017 6.31 6.34 6.25 6.28
2507 NASDAQ OPK Fri, May 26, 2017 6.41 6.41 6.26 6.33
2506 NASDAQ OPK Thu, May 25, 2017 6.43 6.53 6.34 6.35
2505 NASDAQ OPK Wed, May 24, 2017 6.48 6.50 6.37 6.44
2504 NASDAQ OPK Tue, May 23, 2017 6.58 6.66 6.52 6.54
2503 NASDAQ OPK Mon, May 22, 2017 6.59 6.60 6.37 6.52
2502 NASDAQ OPK Fri, May 19, 2017 6.65 6.65 6.54 6.61
2501 NASDAQ OPK Thu, May 18, 2017 6.72 6.75 6.56 6.60
2500 NASDAQ OPK Wed, May 17, 2017 6.50 6.75 6.46 6.64
2499 NASDAQ OPK Tue, May 16, 2017 6.79 6.81 6.55 6.60
2498 NASDAQ OPK Mon, May 15, 2017 7.14 7.25 6.74 6.80
2497 NASDAQ OPK Fri, May 12, 2017 7.05 7.21 6.97 7.19
2496 NASDAQ OPK Thu, May 11, 2017 6.85 7.27 6.85 7.07
2495 NASDAQ OPK Wed, May 10, 2017 6.77 7.10 6.65 7.00
2494 NASDAQ OPK Tue, May 9, 2017 7.25 7.53 7.17 7.53
2493 NASDAQ OPK Mon, May 8, 2017 7.57 7.57 7.17 7.25
2492 NASDAQ OPK Fri, May 5, 2017 7.55 7.59 7.46 7.51
2491 NASDAQ OPK Thu, May 4, 2017 7.54 7.56 7.41 7.55
2490 NASDAQ OPK Wed, May 3, 2017 7.60 7.63 7.49 7.52
2489 NASDAQ OPK Tue, May 2, 2017 7.59 7.66 7.43 7.65
2488 NASDAQ OPK Mon, May 1, 2017 7.82 7.82 7.53 7.56
2487 NASDAQ OPK Fri, Apr 28, 2017 7.81 7.85 7.75 7.77
2486 NASDAQ OPK Thu, Apr 27, 2017 7.79 7.87 7.73 7.83
2485 NASDAQ OPK Wed, Apr 26, 2017 7.78 7.88 7.76 7.83
2484 NASDAQ OPK Tue, Apr 25, 2017 7.56 7.90 7.52 7.83
2483 NASDAQ OPK Mon, Apr 24, 2017 7.61 7.63 7.41 7.58
2482 NASDAQ OPK Fri, Apr 21, 2017 7.65 7.65 7.40 7.47
2481 NASDAQ OPK Thu, Apr 20, 2017 7.60 7.65 7.46 7.63
2480 NASDAQ OPK Wed, Apr 19, 2017 7.16 7.59 7.11 7.52
2479 NASDAQ OPK Tue, Apr 18, 2017 7.38 7.40 7.11 7.11
2478 NASDAQ OPK Mon, Apr 17, 2017 7.62 7.62 7.41 7.46
2477 NASDAQ OPK Thu, Apr 13, 2017 7.64 7.66 7.51 7.62
2476 NASDAQ OPK Wed, Apr 12, 2017 7.55 7.77 7.53 7.66
2475 NASDAQ OPK Tue, Apr 11, 2017 7.59 7.67 7.45 7.55
2474 NASDAQ OPK Mon, Apr 10, 2017 7.62 7.69 7.57 7.59
2473 NASDAQ OPK Fri, Apr 7, 2017 7.60 7.76 7.51 7.59
2472 NASDAQ OPK Thu, Apr 6, 2017 7.63 7.66 7.52 7.61
2471 NASDAQ OPK Wed, Apr 5, 2017 7.73 7.85 7.60 7.61
2470 NASDAQ OPK Tue, Apr 4, 2017 7.69 7.83 7.68 7.73
2469 NASDAQ OPK Mon, Apr 3, 2017 8.00 8.04 7.73 7.75
2468 NASDAQ OPK Fri, Mar 31, 2017 7.99 8.05 7.94 8.00
2467 NASDAQ OPK Thu, Mar 30, 2017 8.06 8.13 7.96 7.97
2466 NASDAQ OPK Wed, Mar 29, 2017 8.26 8.26 8.08 8.11
2465 NASDAQ OPK Tue, Mar 28, 2017 8.08 8.40 8.06 8.31
2464 NASDAQ OPK Mon, Mar 27, 2017 7.81 8.15 7.77 8.14
2463 NASDAQ OPK Fri, Mar 24, 2017 7.70 7.93 7.68 7.85
2462 NASDAQ OPK Thu, Mar 23, 2017 7.80 7.83 7.65 7.65
2461 NASDAQ OPK Wed, Mar 22, 2017 7.97 7.98 7.77 7.86
2460 NASDAQ OPK Tue, Mar 21, 2017 8.00 8.02 7.69 7.86
2459 NASDAQ OPK Mon, Mar 20, 2017 8.16 8.20 7.94 8.00
2458 NASDAQ OPK Fri, Mar 17, 2017 8.48 8.51 8.03 8.12
2457 NASDAQ OPK Thu, Mar 16, 2017 8.14 8.39 8.13 8.36
2456 NASDAQ OPK Wed, Mar 15, 2017 8.08 8.14 8.01 8.09
2455 NASDAQ OPK Tue, Mar 14, 2017 8.14 8.54 7.96 8.07
2454 NASDAQ OPK Mon, Mar 13, 2017 7.95 8.04 7.85 7.92
2453 NASDAQ OPK Fri, Mar 10, 2017 7.89 7.98 7.87 7.95
2452 NASDAQ OPK Thu, Mar 9, 2017 7.97 8.08 7.77 7.85
2451 NASDAQ OPK Wed, Mar 8, 2017 7.99 8.05 7.85 7.92
2450 NASDAQ OPK Tue, Mar 7, 2017 7.60 7.97 7.59 7.77
2449 NASDAQ OPK Mon, Mar 6, 2017 7.57 7.65 7.40 7.61
2448 NASDAQ OPK Fri, Mar 3, 2017 7.53 7.75 7.35 7.45
2447 NASDAQ OPK Thu, Mar 2, 2017 8.01 8.02 7.13 7.43
2446 NASDAQ OPK Wed, Mar 1, 2017 8.61 8.64 8.29 8.37
2445 NASDAQ OPK Tue, Feb 28, 2017 8.67 8.69 8.38 8.39
2444 NASDAQ OPK Mon, Feb 27, 2017 8.38 8.64 8.38 8.64
2443 NASDAQ OPK Fri, Feb 24, 2017 8.45 8.53 8.36 8.44
2442 NASDAQ OPK Thu, Feb 23, 2017 8.43 8.54 8.32 8.52
2441 NASDAQ OPK Wed, Feb 22, 2017 8.57 8.61 8.45 8.45
2440 NASDAQ OPK Tue, Feb 21, 2017 8.87 8.92 8.63 8.64
2439 NASDAQ OPK Fri, Feb 17, 2017 8.72 8.82 8.62 8.81
2438 NASDAQ OPK Thu, Feb 16, 2017 8.66 8.84 8.62 8.75
2437 NASDAQ OPK Wed, Feb 15, 2017 8.40 8.66 8.40 8.66
2436 NASDAQ OPK Tue, Feb 14, 2017 8.30 8.47 8.28 8.45
2435 NASDAQ OPK Mon, Feb 13, 2017 8.26 8.41 8.24 8.27
2434 NASDAQ OPK Fri, Feb 10, 2017 8.17 8.26 8.06 8.22
2433 NASDAQ OPK Thu, Feb 9, 2017 8.22 8.22 8.01 8.10
2432 NASDAQ OPK Wed, Feb 8, 2017 8.22 8.23 7.99 8.22
2431 NASDAQ OPK Tue, Feb 7, 2017 8.32 8.35 8.21 8.30
2430 NASDAQ OPK Mon, Feb 6, 2017 8.54 8.56 8.17 8.27
2429 NASDAQ OPK Fri, Feb 3, 2017 8.54 8.63 8.48 8.61
2428 NASDAQ OPK Thu, Feb 2, 2017 8.62 8.66 8.47 8.51
2427 NASDAQ OPK Wed, Feb 1, 2017 8.72 8.78 8.56 8.63
2426 NASDAQ OPK Tue, Jan 31, 2017 8.41 8.70 8.30 8.69
2425 NASDAQ OPK Mon, Jan 30, 2017 8.62 8.63 8.43 8.48
2424 NASDAQ OPK Fri, Jan 27, 2017 8.75 8.76 8.61 8.69
2423 NASDAQ OPK Thu, Jan 26, 2017 8.55 8.73 8.50 8.72
2422 NASDAQ OPK Wed, Jan 25, 2017 8.60 8.72 8.33 8.58
2421 NASDAQ OPK Tue, Jan 24, 2017 8.54 8.62 8.42 8.46
2420 NASDAQ OPK Mon, Jan 23, 2017 8.56 8.66 8.34 8.52
2419 NASDAQ OPK Fri, Jan 20, 2017 8.76 8.81 8.62 8.64
2418 NASDAQ OPK Thu, Jan 19, 2017 8.90 8.92 8.62 8.75
2417 NASDAQ OPK Wed, Jan 18, 2017 8.98 9.01 8.82 8.98
2416 NASDAQ OPK Tue, Jan 17, 2017 9.20 9.20 8.87 8.93
2415 NASDAQ OPK Fri, Jan 13, 2017 9.20 9.30 9.11 9.15
2414 NASDAQ OPK Thu, Jan 12, 2017 9.27 9.29 9.10 9.19
2413 NASDAQ OPK Wed, Jan 11, 2017 9.34 9.46 9.06 9.23
2412 NASDAQ OPK Tue, Jan 10, 2017 9.40 9.47 9.31 9.37
2411 NASDAQ OPK Mon, Jan 9, 2017 9.50 9.55 9.30 9.31
2410 NASDAQ OPK Fri, Jan 6, 2017 9.13 9.46 9.13 9.38
2409 NASDAQ OPK Thu, Jan 5, 2017 9.22 9.25 9.02 9.04
2408 NASDAQ OPK Wed, Jan 4, 2017 9.11 9.44 9.09 9.27
2407 NASDAQ OPK Tue, Jan 3, 2017 9.16 9.29 8.97 9.09
2406 NASDAQ OPK Fri, Dec 30, 2016 9.71 10.09 9.03 9.30
2405 NASDAQ OPK Thu, Dec 29, 2016 11.40 11.55 11.35 11.46
2404 NASDAQ OPK Wed, Dec 28, 2016 11.89 11.94 11.33 11.34
2403 NASDAQ OPK Tue, Dec 27, 2016 12.03 12.03 11.81 11.82
2402 NASDAQ OPK Fri, Dec 23, 2016 11.52 11.93 11.51 11.91
2401 NASDAQ OPK Thu, Dec 22, 2016 11.78 11.83 11.53 11.58
2400 NASDAQ OPK Wed, Dec 21, 2016 11.85 12.07 11.73 11.75
2399 NASDAQ OPK Tue, Dec 20, 2016 11.67 11.83 11.61 11.82
2398 NASDAQ OPK Mon, Dec 19, 2016 11.84 11.88 11.57 11.67
2397 NASDAQ OPK Fri, Dec 16, 2016 11.87 11.98 11.62 11.73
2396 NASDAQ OPK Thu, Dec 15, 2016 11.86 12.15 11.78 11.90
2395 NASDAQ OPK Wed, Dec 14, 2016 11.88 12.05 11.36 11.57
2394 NASDAQ OPK Tue, Dec 13, 2016 11.80 12.00 11.70 11.91
2393 NASDAQ OPK Mon, Dec 12, 2016 11.06 11.70 11.05 11.65
2392 NASDAQ OPK Fri, Dec 9, 2016 10.90 11.11 10.84 10.97
2391 NASDAQ OPK Thu, Dec 8, 2016 10.88 10.91 10.61 10.81
2390 NASDAQ OPK Wed, Dec 7, 2016 11.23 11.33 10.88 10.93
2389 NASDAQ OPK Tue, Dec 6, 2016 10.89 11.50 10.89 11.33
2388 NASDAQ OPK Mon, Dec 5, 2016 10.52 10.85 10.46 10.79
2387 NASDAQ OPK Fri, Dec 2, 2016 10.34 10.49 10.23 10.40
2386 NASDAQ OPK Thu, Dec 1, 2016 10.44 10.54 10.18 10.31
2385 NASDAQ OPK Wed, Nov 30, 2016 10.55 10.59 10.37 10.39
2384 NASDAQ OPK Tue, Nov 29, 2016 10.62 10.71 10.47 10.51
2383 NASDAQ OPK Mon, Nov 28, 2016 10.87 10.90 10.54 10.62
2382 NASDAQ OPK Fri, Nov 25, 2016 10.70 10.97 10.65 10.83
2381 NASDAQ OPK Wed, Nov 23, 2016 10.08 10.75 10.01 10.70
2380 NASDAQ OPK Tue, Nov 22, 2016 10.34 10.37 10.14 10.20
2379 NASDAQ OPK Mon, Nov 21, 2016 10.46 10.53 10.36 10.44
2378 NASDAQ OPK Fri, Nov 18, 2016 10.50 10.69 10.23 10.48
2377 NASDAQ OPK Thu, Nov 17, 2016 10.34 10.54 10.28 10.46
2376 NASDAQ OPK Wed, Nov 16, 2016 10.09 10.61 10.07 10.25
2375 NASDAQ OPK Tue, Nov 15, 2016 10.22 10.48 10.11 10.23
2374 NASDAQ OPK Mon, Nov 14, 2016 9.41 10.46 9.37 10.38
2373 NASDAQ OPK Fri, Nov 11, 2016 9.35 9.48 9.17 9.45
2372 NASDAQ OPK Thu, Nov 10, 2016 9.61 9.74 9.35 9.38
2371 NASDAQ OPK Wed, Nov 9, 2016 9.28 9.75 9.26 9.58
2370 NASDAQ OPK Tue, Nov 8, 2016 9.72 9.73 8.92 9.13
2369 NASDAQ OPK Mon, Nov 7, 2016 9.94 9.94 9.69 9.73
2368 NASDAQ OPK Fri, Nov 4, 2016 9.54 9.78 9.49 9.78
2367 NASDAQ OPK Thu, Nov 3, 2016 9.49 9.60 9.39 9.55
2366 NASDAQ OPK Wed, Nov 2, 2016 9.56 9.62 9.43 9.44
2365 NASDAQ OPK Tue, Nov 1, 2016 9.35 9.57 9.34 9.56
2364 NASDAQ OPK Mon, Oct 31, 2016 9.47 9.49 9.35 9.42
2363 NASDAQ OPK Fri, Oct 28, 2016 9.40 9.55 9.30 9.46
2362 NASDAQ OPK Thu, Oct 27, 2016 9.33 9.45 9.15 9.41
2361 NASDAQ OPK Wed, Oct 26, 2016 9.33 9.42 9.22 9.26
2360 NASDAQ OPK Tue, Oct 25, 2016 9.37 9.52 9.28 9.40
2359 NASDAQ OPK Mon, Oct 24, 2016 9.40 9.56 9.40 9.41
2358 NASDAQ OPK Fri, Oct 21, 2016 9.39 9.44 9.32 9.39
2357 NASDAQ OPK Thu, Oct 20, 2016 9.46 9.48 9.19 9.45
2356 NASDAQ OPK Wed, Oct 19, 2016 9.37 9.39 9.13 9.29
2355 NASDAQ OPK Tue, Oct 18, 2016 9.42 9.45 9.25 9.40
2354 NASDAQ OPK Mon, Oct 17, 2016 9.48 9.56 9.25 9.31
2353 NASDAQ OPK Fri, Oct 14, 2016 9.60 9.69 9.42 9.45
2352 NASDAQ OPK Thu, Oct 13, 2016 9.52 9.66 9.41 9.56
2351 NASDAQ OPK Wed, Oct 12, 2016 9.70 9.74 9.47 9.56
2350 NASDAQ OPK Tue, Oct 11, 2016 9.94 9.99 9.57 9.66
2349 NASDAQ OPK Mon, Oct 10, 2016 9.87 10.02 9.85 9.95
2348 NASDAQ OPK Fri, Oct 7, 2016 9.84 9.93 9.53 9.91
2347 NASDAQ OPK Thu, Oct 6, 2016 10.59 10.66 10.41 10.43
2346 NASDAQ OPK Wed, Oct 5, 2016 10.69 10.91 10.67 10.74
2345 NASDAQ OPK Tue, Oct 4, 2016 10.70 10.75 10.51 10.59
2344 NASDAQ OPK Mon, Oct 3, 2016 10.59 10.75 10.57 10.69
2343 NASDAQ OPK Fri, Sep 30, 2016 10.59 10.65 10.47 10.59
2342 NASDAQ OPK Thu, Sep 29, 2016 10.80 10.84 10.45 10.60
2341 NASDAQ OPK Wed, Sep 28, 2016 11.18 11.18 10.83 10.87
2340 NASDAQ OPK Tue, Sep 27, 2016 11.10 11.31 11.08 11.19
2339 NASDAQ OPK Mon, Sep 26, 2016 11.00 11.10 10.92 11.06
2338 NASDAQ OPK Fri, Sep 23, 2016 10.79 11.20 10.79 11.09
2337 NASDAQ OPK Thu, Sep 22, 2016 10.65 10.95 10.62 10.86
2336 NASDAQ OPK Wed, Sep 21, 2016 10.43 10.69 10.39 10.68
2335 NASDAQ OPK Tue, Sep 20, 2016 10.34 10.50 10.31 10.50
2334 NASDAQ OPK Mon, Sep 19, 2016 10.14 10.39 10.14 10.31
2333 NASDAQ OPK Fri, Sep 16, 2016 10.16 10.32 10.15 10.21
2332 NASDAQ OPK Thu, Sep 15, 2016 10.20 10.31 10.11 10.22
2331 NASDAQ OPK Wed, Sep 14, 2016 10.02 10.23 9.96 10.19
2330 NASDAQ OPK Tue, Sep 13, 2016 9.80 10.09 9.76 10.04
2329 NASDAQ OPK Mon, Sep 12, 2016 9.66 9.90 9.55 9.89
2328 NASDAQ OPK Fri, Sep 9, 2016 9.79 9.89 9.73 9.75
2327 NASDAQ OPK Thu, Sep 8, 2016 9.61 9.95 9.56 9.91
2326 NASDAQ OPK Wed, Sep 7, 2016 9.39 9.60 9.38 9.59
2325 NASDAQ OPK Tue, Sep 6, 2016 9.32 9.48 9.19 9.36
2324 NASDAQ OPK Fri, Sep 2, 2016 9.34 9.39 9.16 9.33
2323 NASDAQ OPK Thu, Sep 1, 2016 9.31 9.54 9.19 9.29
2322 NASDAQ OPK Wed, Aug 31, 2016 9.26 9.26 9.07 9.10
2321 NASDAQ OPK Tue, Aug 30, 2016 9.33 9.46 9.25 9.33
2320 NASDAQ OPK Mon, Aug 29, 2016 9.10 9.31 9.08 9.28
2319 NASDAQ OPK Fri, Aug 26, 2016 9.09 9.28 9.00 9.12
2318 NASDAQ OPK Thu, Aug 25, 2016 9.24 9.30 8.91 9.03
2317 NASDAQ OPK Wed, Aug 24, 2016 9.53 9.65 9.15 9.24
2316 NASDAQ OPK Tue, Aug 23, 2016 9.88 9.91 9.37 9.52
2315 NASDAQ OPK Mon, Aug 22, 2016 9.80 9.84 9.70 9.80
2314 NASDAQ OPK Fri, Aug 19, 2016 9.85 9.88 9.76 9.83
2313 NASDAQ OPK Thu, Aug 18, 2016 9.85 9.96 9.81 9.86
2312 NASDAQ OPK Wed, Aug 17, 2016 10.00 10.05 9.82 9.86
2311 NASDAQ OPK Tue, Aug 16, 2016 10.00 10.07 9.98 10.00
2310 NASDAQ OPK Mon, Aug 15, 2016 10.10 10.10 10.01 10.08
2309 NASDAQ OPK Fri, Aug 12, 2016 10.05 10.06 9.97 10.06
2308 NASDAQ OPK Thu, Aug 11, 2016 9.97 10.06 9.92 10.05
2307 NASDAQ OPK Wed, Aug 10, 2016 10.19 10.19 9.90 9.92
2306 NASDAQ OPK Tue, Aug 9, 2016 10.51 10.54 10.12 10.14
2305 NASDAQ OPK Mon, Aug 8, 2016 10.19 10.22 10.05 10.11
2304 NASDAQ OPK Fri, Aug 5, 2016 10.00 10.12 9.95 10.11
2303 NASDAQ OPK Thu, Aug 4, 2016 9.91 10.04 9.88 9.97
2302 NASDAQ OPK Wed, Aug 3, 2016 9.82 9.98 9.77 9.98
2301 NASDAQ OPK Tue, Aug 2, 2016 10.01 10.05 9.79 9.88
2300 NASDAQ OPK Mon, Aug 1, 2016 9.93 10.09 9.87 10.07
2299 NASDAQ OPK Fri, Jul 29, 2016 9.89 9.96 9.76 9.95
2298 NASDAQ OPK Thu, Jul 28, 2016 9.97 9.99 9.83 9.89
2297 NASDAQ OPK Wed, Jul 27, 2016 10.10 10.10 9.85 9.95
2296 NASDAQ OPK Tue, Jul 26, 2016 10.04 10.08 9.92 9.97
2295 NASDAQ OPK Mon, Jul 25, 2016 10.01 10.05 9.90 9.95
2294 NASDAQ OPK Fri, Jul 22, 2016 9.95 10.00 9.82 9.97
2293 NASDAQ OPK Thu, Jul 21, 2016 9.99 10.10 9.80 9.89
2292 NASDAQ OPK Wed, Jul 20, 2016 10.00 10.00 9.80 9.93
2291 NASDAQ OPK Tue, Jul 19, 2016 10.02 10.06 9.89 9.89
2290 NASDAQ OPK Mon, Jul 18, 2016 10.00 10.08 9.96 10.04
2289 NASDAQ OPK Fri, Jul 15, 2016 9.82 9.98 9.76 9.95
2288 NASDAQ OPK Thu, Jul 14, 2016 9.75 9.86 9.67 9.85
2287 NASDAQ OPK Wed, Jul 13, 2016 9.83 9.93 9.60 9.61
2286 NASDAQ OPK Tue, Jul 12, 2016 9.93 10.00 9.84 9.91
2285 NASDAQ OPK Mon, Jul 11, 2016 9.91 10.03 9.80 9.82
2284 NASDAQ OPK Fri, Jul 8, 2016 9.93 10.00 9.86 9.87
2283 NASDAQ OPK Thu, Jul 7, 2016 9.86 9.95 9.74 9.86
2282 NASDAQ OPK Wed, Jul 6, 2016 9.47 9.87 9.41 9.85
2281 NASDAQ OPK Tue, Jul 5, 2016 9.64 9.64 9.43 9.56
2280 NASDAQ OPK Fri, Jul 1, 2016 9.36 9.75 9.35 9.72
2279 NASDAQ OPK Thu, Jun 30, 2016 9.12 9.46 9.08 9.34
2278 NASDAQ OPK Wed, Jun 29, 2016 9.34 9.36 9.15 9.30
2277 NASDAQ OPK Tue, Jun 28, 2016 9.05 9.26 9.01 9.26
2276 NASDAQ OPK Mon, Jun 27, 2016 9.28 9.38 8.71 8.82
2275 NASDAQ OPK Fri, Jun 24, 2016 9.38 9.58 9.30 9.46
2274 NASDAQ OPK Thu, Jun 23, 2016 9.52 9.75 9.46 9.75
2273 NASDAQ OPK Wed, Jun 22, 2016 9.67 9.67 9.30 9.36
2272 NASDAQ OPK Tue, Jun 21, 2016 9.97 9.99 9.54 9.70
2271 NASDAQ OPK Mon, Jun 20, 2016 9.23 9.32 9.10 9.19
2270 NASDAQ OPK Fri, Jun 17, 2016 9.32 9.36 9.00 9.05
2269 NASDAQ OPK Thu, Jun 16, 2016 9.07 9.33 8.97 9.28
2268 NASDAQ OPK Wed, Jun 15, 2016 9.06 9.41 9.04 9.23
2267 NASDAQ OPK Tue, Jun 14, 2016 9.22 9.31 8.83 9.05
2266 NASDAQ OPK Mon, Jun 13, 2016 9.30 9.60 9.26 9.26
2265 NASDAQ OPK Fri, Jun 10, 2016 9.50 9.55 9.28 9.30
2264 NASDAQ OPK Thu, Jun 9, 2016 9.70 9.80 9.60 9.61
2263 NASDAQ OPK Wed, Jun 8, 2016 9.95 10.00 9.75 9.78
2262 NASDAQ OPK Tue, Jun 7, 2016 10.02 10.04 9.89 9.89
2261 NASDAQ OPK Mon, Jun 6, 2016 10.01 10.03 9.72 10.03
2260 NASDAQ OPK Fri, Jun 3, 2016 10.64 10.64 9.99 10.01
2259 NASDAQ OPK Thu, Jun 2, 2016 10.50 10.67 10.41 10.65
2258 NASDAQ OPK Wed, Jun 1, 2016 10.53 10.59 10.37 10.53
2257 NASDAQ OPK Tue, May 31, 2016 10.46 10.65 10.41 10.63
2256 NASDAQ OPK Fri, May 27, 2016 10.55 10.55 10.11 10.42
2255 NASDAQ OPK Thu, May 26, 2016 10.59 10.66 10.42 10.43
2254 NASDAQ OPK Wed, May 25, 2016 10.53 10.79 10.48 10.54
2253 NASDAQ OPK Tue, May 24, 2016 10.15 10.49 10.11 10.44
2252 NASDAQ OPK Mon, May 23, 2016 10.15 10.33 10.02 10.05
2251 NASDAQ OPK Fri, May 20, 2016 9.85 10.25 9.85 10.15
2250 NASDAQ OPK Thu, May 19, 2016 9.88 10.03 9.76 9.81
2249 NASDAQ OPK Wed, May 18, 2016 9.86 10.10 9.85 10.00
2248 NASDAQ OPK Tue, May 17, 2016 9.89 10.15 9.86 9.96
2247 NASDAQ OPK Mon, May 16, 2016 9.83 10.00 9.82 9.97
2246 NASDAQ OPK Fri, May 13, 2016 9.56 9.90 9.55 9.75
2245 NASDAQ OPK Thu, May 12, 2016 10.00 10.03 9.33 9.55
2244 NASDAQ OPK Wed, May 11, 2016 10.29 10.35 9.91 9.93
2243 NASDAQ OPK Tue, May 10, 2016 10.48 10.57 10.04 10.38
2242 NASDAQ OPK Mon, May 9, 2016 10.11 10.37 10.01 10.26
2241 NASDAQ OPK Fri, May 6, 2016 9.73 9.85 9.57 9.73
2240 NASDAQ OPK Thu, May 5, 2016 9.82 9.85 9.65 9.75
2239 NASDAQ OPK Wed, May 4, 2016 10.23 10.29 9.68 9.80
2238 NASDAQ OPK Tue, May 3, 2016 10.28 10.62 10.18 10.34
2237 NASDAQ OPK Mon, May 2, 2016 10.80 10.80 10.15 10.46
2236 NASDAQ OPK Fri, Apr 29, 2016 10.82 10.98 10.58 10.75
2235 NASDAQ OPK Thu, Apr 28, 2016 10.92 11.11 10.72 10.84
2234 NASDAQ OPK Wed, Apr 27, 2016 11.11 11.22 10.87 10.89
2233 NASDAQ OPK Tue, Apr 26, 2016 11.22 11.36 11.05 11.22
2232 NASDAQ OPK Mon, Apr 25, 2016 11.25 11.28 11.03 11.12
2231 NASDAQ OPK Fri, Apr 22, 2016 11.29 11.36 11.16 11.25
2230 NASDAQ OPK Thu, Apr 21, 2016 11.01 11.39 10.92 11.29
2229 NASDAQ OPK Wed, Apr 20, 2016 11.03 11.10 10.91 11.04
2228 NASDAQ OPK Tue, Apr 19, 2016 11.09 11.10 10.86 10.93
2227 NASDAQ OPK Mon, Apr 18, 2016 10.87 11.08 10.83 11.05
2226 NASDAQ OPK Fri, Apr 15, 2016 10.80 10.89 10.63 10.80
2225 NASDAQ OPK Thu, Apr 14, 2016 10.96 10.99 10.75 10.82
2224 NASDAQ OPK Wed, Apr 13, 2016 10.82 10.98 10.69 10.96
2223 NASDAQ OPK Tue, Apr 12, 2016 10.82 10.86 10.57 10.79
2222 NASDAQ OPK Mon, Apr 11, 2016 10.79 11.07 10.70 10.75
2221 NASDAQ OPK Fri, Apr 8, 2016 10.73 10.88 10.60 10.73
2220 NASDAQ OPK Thu, Apr 7, 2016 10.53 10.77 10.47 10.63
2219 NASDAQ OPK Wed, Apr 6, 2016 10.30 10.68 10.25 10.68
2218 NASDAQ OPK Tue, Apr 5, 2016 10.40 10.40 10.40 10.28
2217 NASDAQ OPK Mon, Apr 4, 2016 10.28 10.62 10.26 10.40
2216 NASDAQ OPK Fri, Apr 1, 2016 10.25 10.48 10.13 10.41
2215 NASDAQ OPK Thu, Mar 31, 2016 9.96 10.56 9.86 10.39
2214 NASDAQ OPK Wed, Mar 30, 2016 9.99 10.49 9.83 9.90
2213 NASDAQ OPK Tue, Mar 29, 2016 11.16 11.25 11.08 11.07
2212 NASDAQ OPK Mon, Mar 28, 2016 11.57 11.72 11.14 11.16
2211 NASDAQ OPK Thu, Mar 24, 2016 11.33 11.39 10.96 11.28
2210 NASDAQ OPK Wed, Mar 23, 2016 11.63 11.84 11.30 11.33
2209 NASDAQ OPK Tue, Mar 22, 2016 11.10 11.85 11.08 11.60
2208 NASDAQ OPK Mon, Mar 21, 2016 11.00 11.33 10.98 11.21
2207 NASDAQ OPK Fri, Mar 18, 2016 11.15 11.47 11.02 11.04
2206 NASDAQ OPK Thu, Mar 17, 2016 10.28 11.06 10.20 10.99
2205 NASDAQ OPK Wed, Mar 16, 2016 9.96 10.33 9.86 10.23
2204 NASDAQ OPK Tue, Mar 15, 2016 10.27 10.27 10.27 9.94
2203 NASDAQ OPK Mon, Mar 14, 2016 10.17 10.30 10.09 10.27
2202 NASDAQ OPK Fri, Mar 11, 2016 10.10 10.24 9.96 10.21
2201 NASDAQ OPK Thu, Mar 10, 2016 10.07 10.14 9.70 9.95
2200 NASDAQ OPK Wed, Mar 9, 2016 9.99 9.99 9.99 10.04
2199 NASDAQ OPK Tue, Mar 8, 2016 10.10 10.24 9.96 9.96
2198 NASDAQ OPK Mon, Mar 7, 2016 9.69 10.77 9.67 10.21
2197 NASDAQ OPK Fri, Mar 4, 2016 9.63 9.89 9.56 9.70
2196 NASDAQ OPK Thu, Mar 3, 2016 9.68 9.68 9.68 9.60
2195 NASDAQ OPK Wed, Mar 2, 2016 9.26 9.70 9.25 9.68
2194 NASDAQ OPK Tue, Mar 1, 2016 9.25 9.35 8.58 9.35
2193 NASDAQ OPK Mon, Feb 29, 2016 9.37 9.52 9.24 9.30
2192 NASDAQ OPK Fri, Feb 26, 2016 9.17 9.38 9.01 9.31
2191 NASDAQ OPK Thu, Feb 25, 2016 8.88 9.16 8.85 9.14
2190 NASDAQ OPK Wed, Feb 24, 2016 8.73 8.96 8.56 8.84
2189 NASDAQ OPK Tue, Feb 23, 2016 9.06 9.12 8.81 8.83
2188 NASDAQ OPK Mon, Feb 22, 2016 9.02 9.37 9.02 9.16
2187 NASDAQ OPK Fri, Feb 19, 2016 8.70 8.93 8.59 8.82
2186 NASDAQ OPK Thu, Feb 18, 2016 8.75 8.98 8.56 8.73
2185 NASDAQ OPK Wed, Feb 17, 2016 7.96 9.11 7.94 8.78
2184 NASDAQ OPK Tue, Feb 16, 2016 7.93 7.99 7.73 7.99
2183 NASDAQ OPK Fri, Feb 12, 2016 8.14 8.18 7.83 7.89
2182 NASDAQ OPK Thu, Feb 11, 2016 7.75 8.04 7.64 8.00
2181 NASDAQ OPK Wed, Feb 10, 2016 7.86 8.15 7.78 7.85
2180 NASDAQ OPK Tue, Feb 9, 2016 7.74 8.18 7.65 7.76
2179 NASDAQ OPK Mon, Feb 8, 2016 8.23 8.24 7.57 7.70
2178 NASDAQ OPK Fri, Feb 5, 2016 8.44 8.54 8.16 8.26
2177 NASDAQ OPK Thu, Feb 4, 2016 7.71 8.47 7.64 8.44
2176 NASDAQ OPK Wed, Feb 3, 2016 7.74 7.82 7.42 7.79
2175 NASDAQ OPK Tue, Feb 2, 2016 7.80 7.88 7.61 7.66
2174 NASDAQ OPK Mon, Feb 1, 2016 7.94 8.00 7.73 7.92
2173 NASDAQ OPK Fri, Jan 29, 2016 7.77 8.07 7.64 8.04
2172 NASDAQ OPK Thu, Jan 28, 2016 8.04 8.05 7.63 7.69
2171 NASDAQ OPK Wed, Jan 27, 2016 7.90 8.08 7.71 7.86
2170 NASDAQ OPK Tue, Jan 26, 2016 7.97 8.10 7.70 8.01
2169 NASDAQ OPK Mon, Jan 25, 2016 8.11 8.30 7.86 7.96
2168 NASDAQ OPK Fri, Jan 22, 2016 8.00 8.34 7.86 8.24
2167 NASDAQ OPK Thu, Jan 21, 2016 7.77 8.06 7.58 7.83
2166 NASDAQ OPK Wed, Jan 20, 2016 7.66 8.02 7.12 7.88
2165 NASDAQ OPK Tue, Jan 19, 2016 8.29 8.33 7.65 7.83
2164 NASDAQ OPK Fri, Jan 15, 2016 7.87 8.27 7.58 8.23
2163 NASDAQ OPK Thu, Jan 14, 2016 8.32 8.40 7.56 8.23
2162 NASDAQ OPK Wed, Jan 13, 2016 8.87 8.95 8.22 8.29
2161 NASDAQ OPK Tue, Jan 12, 2016 8.63 8.87 8.31 8.73
2160 NASDAQ OPK Mon, Jan 11, 2016 9.10 9.17 8.41 8.60
2159 NASDAQ OPK Fri, Jan 8, 2016 8.90 9.20 8.77 8.82
2158 NASDAQ OPK Thu, Jan 7, 2016 8.97 9.19 8.63 8.83
2157 NASDAQ OPK Wed, Jan 6, 2016 9.70 9.84 8.95 9.14
2156 NASDAQ OPK Tue, Jan 5, 2016 9.97 10.09 9.74 9.82
2155 NASDAQ OPK Mon, Jan 4, 2016 9.92 10.19 9.81 10.00
2154 NASDAQ OPK Thu, Dec 31, 2015 10.15 10.24 10.04 10.05
2153 NASDAQ OPK Wed, Dec 30, 2015 10.29 10.31 9.98 10.14
2152 NASDAQ OPK Tue, Dec 29, 2015 10.20 10.37 10.13 10.34
2151 NASDAQ OPK Mon, Dec 28, 2015 10.24 10.24 10.00 10.13
2150 NASDAQ OPK Thu, Dec 24, 2015 10.15 10.24 10.12 10.18
2149 NASDAQ OPK Wed, Dec 23, 2015 9.85 10.19 9.77 10.12
2148 NASDAQ OPK Tue, Dec 22, 2015 10.13 10.15 9.90 9.94
2147 NASDAQ OPK Mon, Dec 21, 2015 10.03 10.30 9.88 10.20
2146 NASDAQ OPK Fri, Dec 18, 2015 9.94 10.25 9.90 9.98
2145 NASDAQ OPK Thu, Dec 17, 2015 10.20 10.24 9.84 10.04
2144 NASDAQ OPK Wed, Dec 16, 2015 9.75 10.22 9.74 10.14
2143 NASDAQ OPK Tue, Dec 15, 2015 9.74 9.92 9.61 9.74
2142 NASDAQ OPK Mon, Dec 14, 2015 10.17 10.26 9.47 9.60
2141 NASDAQ OPK Fri, Dec 11, 2015 10.75 10.82 10.40 10.42
2140 NASDAQ OPK Thu, Dec 10, 2015 10.80 10.95 10.66 10.86
2139 NASDAQ OPK Wed, Dec 9, 2015 11.10 11.10 10.75 10.80
2138 NASDAQ OPK Tue, Dec 8, 2015 10.89 11.27 10.86 11.18
2137 NASDAQ OPK Mon, Dec 7, 2015 11.35 11.36 10.92 11.00
2136 NASDAQ OPK Fri, Dec 4, 2015 11.04 11.29 10.97 11.28
2135 NASDAQ OPK Thu, Dec 3, 2015 11.41 11.49 10.82 11.05
2134 NASDAQ OPK Wed, Dec 2, 2015 11.03 11.37 11.01 11.21
2133 NASDAQ OPK Tue, Dec 1, 2015 10.96 11.15 10.74 11.09
2132 NASDAQ OPK Mon, Nov 30, 2015 11.01 11.20 10.83 10.94
2131 NASDAQ OPK Fri, Nov 27, 2015 10.95 11.09 10.92 10.98
2130 NASDAQ OPK Wed, Nov 25, 2015 10.94 11.09 10.89 11.09
2129 NASDAQ OPK Tue, Nov 24, 2015 11.00 11.06 10.70 10.84
2128 NASDAQ OPK Mon, Nov 23, 2015 10.85 11.20 10.77 11.07
2127 NASDAQ OPK Fri, Nov 20, 2015 10.81 11.05 10.72 10.88
2126 NASDAQ OPK Thu, Nov 19, 2015 11.07 11.08 10.58 10.76
2125 NASDAQ OPK Wed, Nov 18, 2015 10.87 11.12 10.73 11.12
2124 NASDAQ OPK Tue, Nov 17, 2015 10.79 10.98 10.64 10.81
2123 NASDAQ OPK Mon, Nov 16, 2015 10.52 10.68 10.28 10.63
2122 NASDAQ OPK Fri, Nov 13, 2015 10.93 10.93 10.55 10.72
2121 NASDAQ OPK Thu, Nov 12, 2015 10.97 11.43 10.94 10.98
2120 NASDAQ OPK Wed, Nov 11, 2015 10.87 11.05 10.65 10.90
2119 NASDAQ OPK Tue, Nov 10, 2015 10.52 10.75 10.38 10.72
2118 NASDAQ OPK Mon, Nov 9, 2015 10.12 10.34 9.74 9.95
2117 NASDAQ OPK Fri, Nov 6, 2015 9.61 9.99 9.47 9.96
2116 NASDAQ OPK Thu, Nov 5, 2015 9.76 9.94 9.55 9.66
2115 NASDAQ OPK Wed, Nov 4, 2015 9.74 9.87 9.54 9.66
2114 NASDAQ OPK Tue, Nov 3, 2015 9.70 9.99 9.64 9.72
2113 NASDAQ OPK Mon, Nov 2, 2015 9.50 9.79 9.45 9.76
2112 NASDAQ OPK Fri, Oct 30, 2015 9.39 9.48 9.26 9.45
2111 NASDAQ OPK Thu, Oct 29, 2015 9.62 9.88 9.34 9.39
2110 NASDAQ OPK Wed, Oct 28, 2015 9.25 9.69 9.05 9.69
2109 NASDAQ OPK Tue, Oct 27, 2015 9.26 9.29 8.98 9.26
2108 NASDAQ OPK Mon, Oct 26, 2015 9.61 9.65 9.21 9.29
2107 NASDAQ OPK Fri, Oct 23, 2015 9.14 9.48 9.07 9.45
2106 NASDAQ OPK Thu, Oct 22, 2015 9.23 9.25 8.67 9.03
2105 NASDAQ OPK Wed, Oct 21, 2015 9.68 9.74 9.02 9.15
2104 NASDAQ OPK Tue, Oct 20, 2015 10.15 10.15 9.46 9.52
2103 NASDAQ OPK Mon, Oct 19, 2015 9.62 10.20 9.52 10.15
2102 NASDAQ OPK Fri, Oct 16, 2015 9.59 9.83 9.35 9.39
2101 NASDAQ OPK Thu, Oct 15, 2015 9.16 9.62 9.09 9.28
2100 NASDAQ OPK Wed, Oct 14, 2015 8.62 9.10 8.62 9.05
2099 NASDAQ OPK Tue, Oct 13, 2015 8.60 8.89 8.51 8.51
2098 NASDAQ OPK Mon, Oct 12, 2015 8.94 9.08 8.68 8.74
2097 NASDAQ OPK Fri, Oct 9, 2015 8.63 8.92 8.52 8.90
2096 NASDAQ OPK Thu, Oct 8, 2015 8.78 8.79 8.46 8.64
2095 NASDAQ OPK Wed, Oct 7, 2015 8.80 8.98 8.53 8.79
2094 NASDAQ OPK Tue, Oct 6, 2015 8.95 9.08 8.40 8.70
2093 NASDAQ OPK Mon, Oct 5, 2015 9.14 9.24 8.76 8.88
2092 NASDAQ OPK Fri, Oct 2, 2015 8.41 9.11 8.23 9.10
2091 NASDAQ OPK Thu, Oct 1, 2015 8.42 8.53 8.20 8.48
2090 NASDAQ OPK Wed, Sep 30, 2015 8.60 8.93 8.23 8.41
2089 NASDAQ OPK Tue, Sep 29, 2015 8.62 8.99 8.26 8.42
2088 NASDAQ OPK Mon, Sep 28, 2015 9.01 9.09 8.39 8.58
2087 NASDAQ OPK Fri, Sep 25, 2015 10.20 10.23 8.84 9.08
2086 NASDAQ OPK Thu, Sep 24, 2015 9.57 9.98 9.50 9.84
2085 NASDAQ OPK Wed, Sep 23, 2015 9.76 9.80 9.48 9.55
2084 NASDAQ OPK Tue, Sep 22, 2015 9.81 10.04 9.57 9.75
2083 NASDAQ OPK Mon, Sep 21, 2015 10.42 10.45 9.76 9.94
2082 NASDAQ OPK Fri, Sep 18, 2015 10.48 10.70 10.35 10.48
2081 NASDAQ OPK Thu, Sep 17, 2015 10.16 10.55 10.14 10.45
2080 NASDAQ OPK Wed, Sep 16, 2015 10.22 10.29 10.07 10.20
2079 NASDAQ OPK Tue, Sep 15, 2015 10.07 10.35 10.01 10.33
2078 NASDAQ OPK Mon, Sep 14, 2015 10.19 10.23 9.85 10.03
2077 NASDAQ OPK Fri, Sep 11, 2015 10.28 10.39 9.83 10.09
2076 NASDAQ OPK Thu, Sep 10, 2015 10.21 10.63 10.20 10.55
2075 NASDAQ OPK Wed, Sep 9, 2015 10.88 10.92 10.26 10.31
2074 NASDAQ OPK Tue, Sep 8, 2015 10.94 10.99 10.47 10.84
2073 NASDAQ OPK Fri, Sep 4, 2015 10.84 10.99 10.56 10.73
2072 NASDAQ OPK Thu, Sep 3, 2015 11.25 11.32 10.85 10.94
2071 NASDAQ OPK Wed, Sep 2, 2015 11.24 11.30 10.87 11.30
2070 NASDAQ OPK Tue, Sep 1, 2015 10.53 11.03 10.48 10.81
2069 NASDAQ OPK Mon, Aug 31, 2015 11.16 11.20 10.62 10.82
2068 NASDAQ OPK Fri, Aug 28, 2015 11.18 11.54 11.08 11.42
2067 NASDAQ OPK Thu, Aug 27, 2015 11.29 11.37 10.93 11.12
2066 NASDAQ OPK Wed, Aug 26, 2015 10.97 11.45 10.79 11.39
2065 NASDAQ OPK Tue, Aug 25, 2015 11.14 11.19 10.69 10.70
2064 NASDAQ OPK Mon, Aug 24, 2015 11.64 11.69 10.14 10.33
2063 NASDAQ OPK Fri, Aug 21, 2015 12.32 12.54 11.99 12.00
2062 NASDAQ OPK Thu, Aug 20, 2015 12.65 12.66 12.04 12.38
2061 NASDAQ OPK Wed, Aug 19, 2015 12.70 12.75 12.38 12.63
2060 NASDAQ OPK Tue, Aug 18, 2015 13.07 13.12 12.73 12.75
2059 NASDAQ OPK Mon, Aug 17, 2015 12.77 13.14 12.72 13.14
2058 NASDAQ OPK Fri, Aug 14, 2015 13.00 13.14 12.59 13.00
2057 NASDAQ OPK Thu, Aug 13, 2015 13.42 13.62 13.04 13.08
2056 NASDAQ OPK Wed, Aug 12, 2015 13.40 13.50 12.76 13.45
2055 NASDAQ OPK Tue, Aug 11, 2015 13.75 13.76 13.27 13.45
2054 NASDAQ OPK Mon, Aug 10, 2015 14.24 14.33 13.63 13.86
2053 NASDAQ OPK Fri, Aug 7, 2015 14.01 14.02 13.26 13.76
2052 NASDAQ OPK Thu, Aug 6, 2015 16.00 16.03 13.64 13.90
2051 NASDAQ OPK Wed, Aug 5, 2015 16.17 16.30 16.06 16.11
2050 NASDAQ OPK Tue, Aug 4, 2015 16.19 16.43 16.05 16.10
2049 NASDAQ OPK Mon, Aug 3, 2015 16.39 16.54 16.17 16.28
2048 NASDAQ OPK Fri, Jul 31, 2015 16.50 16.52 16.28 16.37
2047 NASDAQ OPK Thu, Jul 30, 2015 16.57 16.58 16.31 16.38
2046 NASDAQ OPK Wed, Jul 29, 2015 16.78 16.90 16.53 16.56
2045 NASDAQ OPK Tue, Jul 28, 2015 16.72 17.09 16.42 16.84
2044 NASDAQ OPK Mon, Jul 27, 2015 16.91 16.91 16.41 16.60
2043 NASDAQ OPK Fri, Jul 24, 2015 17.31 17.51 16.79 16.88
2042 NASDAQ OPK Thu, Jul 23, 2015 17.02 17.47 16.86 17.21
2041 NASDAQ OPK Wed, Jul 22, 2015 16.39 16.84 16.23 16.76
2040 NASDAQ OPK Tue, Jul 21, 2015 16.34 16.40 15.93 16.14
2039 NASDAQ OPK Mon, Jul 20, 2015 16.63 16.63 16.27 16.34
2038 NASDAQ OPK Fri, Jul 17, 2015 16.54 16.62 16.30 16.59
2037 NASDAQ OPK Thu, Jul 16, 2015 16.79 16.79 16.37 16.54
2036 NASDAQ OPK Wed, Jul 15, 2015 16.78 17.00 16.58 16.63
2035 NASDAQ OPK Tue, Jul 14, 2015 16.59 16.85 16.53 16.74
2034 NASDAQ OPK Mon, Jul 13, 2015 16.79 16.80 16.48 16.57
2033 NASDAQ OPK Fri, Jul 10, 2015 16.83 16.86 16.40 16.55
2032 NASDAQ OPK Thu, Jul 9, 2015 16.58 16.75 16.46 16.56
2031 NASDAQ OPK Wed, Jul 8, 2015 16.66 16.84 16.34 16.35
2030 NASDAQ OPK Tue, Jul 7, 2015 16.90 16.91 16.45 16.81
2029 NASDAQ OPK Mon, Jul 6, 2015 16.08 16.95 16.08 16.82
2028 NASDAQ OPK Thu, Jul 2, 2015 16.33 16.35 16.01 16.25
2027 NASDAQ OPK Wed, Jul 1, 2015 16.25 16.59 16.12 16.27
2026 NASDAQ OPK Tue, Jun 30, 2015 15.71 16.26 15.66 16.08
2025 NASDAQ OPK Mon, Jun 29, 2015 15.74 15.97 15.47 15.49
2024 NASDAQ OPK Fri, Jun 26, 2015 15.54 16.27 15.46 15.97
2023 NASDAQ OPK Thu, Jun 25, 2015 15.24 15.65 15.24 15.41
2022 NASDAQ OPK Wed, Jun 24, 2015 15.49 15.54 15.20 15.25
2021 NASDAQ OPK Tue, Jun 23, 2015 15.53 15.77 15.51 15.61
2020 NASDAQ OPK Mon, Jun 22, 2015 15.63 15.71 15.38 15.54
2019 NASDAQ OPK Fri, Jun 19, 2015 15.53 15.55 15.28 15.50
2018 NASDAQ OPK Thu, Jun 18, 2015 15.44 15.56 15.34 15.43
2017 NASDAQ OPK Wed, Jun 17, 2015 15.37 15.45 15.20 15.33
2016 NASDAQ OPK Tue, Jun 16, 2015 15.54 15.73 15.34 15.40
2015 NASDAQ OPK Mon, Jun 15, 2015 15.27 15.52 15.13 15.41
2014 NASDAQ OPK Fri, Jun 12, 2015 15.68 15.83 15.46 15.58
2013 NASDAQ OPK Thu, Jun 11, 2015 16.18 16.20 15.59 15.86
2012 NASDAQ OPK Wed, Jun 10, 2015 16.16 16.17 15.80 16.10
2011 NASDAQ OPK Tue, Jun 9, 2015 16.71 16.72 15.80 15.92
2010 NASDAQ OPK Mon, Jun 8, 2015 16.62 17.20 16.52 16.72
2009 NASDAQ OPK Fri, Jun 5, 2015 16.81 16.84 15.83 16.19
2008 NASDAQ OPK Thu, Jun 4, 2015 18.17 18.61 15.94 16.25
2007 NASDAQ OPK Wed, Jun 3, 2015 18.60 19.20 18.57 19.12
2006 NASDAQ OPK Tue, Jun 2, 2015 18.21 18.88 18.20 18.62
2005 NASDAQ OPK Mon, Jun 1, 2015 17.92 18.42 17.87 18.31
2004 NASDAQ OPK Fri, May 29, 2015 17.72 17.96 17.46 17.68
2003 NASDAQ OPK Thu, May 28, 2015 17.57 17.80 17.37 17.74
2002 NASDAQ OPK Wed, May 27, 2015 17.58 17.91 17.32 17.89
2001 NASDAQ OPK Tue, May 26, 2015 17.70 17.92 17.55 17.73
2000 NASDAQ OPK Fri, May 22, 2015 17.55 17.89 17.50 17.78
1999 NASDAQ OPK Thu, May 21, 2015 17.99 18.29 17.35 17.58
1998 NASDAQ OPK Wed, May 20, 2015 17.40 18.15 17.25 18.02
1997 NASDAQ OPK Tue, May 19, 2015 17.42 17.72 17.20 17.35
1996 NASDAQ OPK Mon, May 18, 2015 16.89 17.34 16.80 17.30
1995 NASDAQ OPK Fri, May 15, 2015 16.84 17.24 16.53 16.92
1994 NASDAQ OPK Thu, May 14, 2015 15.83 16.72 15.60 16.68
1993 NASDAQ OPK Wed, May 13, 2015 14.69 15.81 14.69 15.67
1992 NASDAQ OPK Tue, May 12, 2015 14.07 14.89 14.04 14.81
1991 NASDAQ OPK Mon, May 11, 2015 14.11 14.40 14.11 14.30
1990 NASDAQ OPK Fri, May 8, 2015 14.25 14.35 14.04 14.13
1989 NASDAQ OPK Thu, May 7, 2015 14.10 14.24 13.94 14.14
1988 NASDAQ OPK Wed, May 6, 2015 13.90 14.13 13.85 14.00
1987 NASDAQ OPK Tue, May 5, 2015 14.19 14.22 13.83 13.88
1986 NASDAQ OPK Mon, May 4, 2015 14.05 14.46 14.03 14.27
1985 NASDAQ OPK Fri, May 1, 2015 13.84 14.06 13.81 14.03
1984 NASDAQ OPK Thu, Apr 30, 2015 14.38 14.40 13.71 13.76
1983 NASDAQ OPK Wed, Apr 29, 2015 14.39 14.54 14.25 14.37
1982 NASDAQ OPK Tue, Apr 28, 2015 14.57 14.70 14.20 14.53
1981 NASDAQ OPK Mon, Apr 27, 2015 15.02 15.13 14.32 14.39
1980 NASDAQ OPK Fri, Apr 24, 2015 14.75 14.99 14.65 14.83
1979 NASDAQ OPK Thu, Apr 23, 2015 14.67 14.76 14.65 14.66
1978 NASDAQ OPK Wed, Apr 22, 2015 14.48 14.70 14.48 14.60
1977 NASDAQ OPK Tue, Apr 21, 2015 14.34 14.55 14.23 14.43
1976 NASDAQ OPK Mon, Apr 20, 2015 14.32 14.36 14.20 14.33
1975 NASDAQ OPK Fri, Apr 17, 2015 14.57 14.69 14.19 14.28
1974 NASDAQ OPK Thu, Apr 16, 2015 14.78 14.85 14.58 14.64
1973 NASDAQ OPK Wed, Apr 15, 2015 14.72 14.90 14.70 14.76
1972 NASDAQ OPK Tue, Apr 14, 2015 14.58 14.79 14.50 14.75
1971 NASDAQ OPK Mon, Apr 13, 2015 14.26 14.62 14.26 14.50
1970 NASDAQ OPK Fri, Apr 10, 2015 14.29 14.40 14.16 14.25
1969 NASDAQ OPK Thu, Apr 9, 2015 14.30 14.39 14.16 14.26
1968 NASDAQ OPK Wed, Apr 8, 2015 14.31 14.52 14.21 14.33
1967 NASDAQ OPK Tue, Apr 7, 2015 14.31 14.43 14.24 14.28
1966 NASDAQ OPK Mon, Apr 6, 2015 14.26 14.46 14.17 14.30
1965 NASDAQ OPK Thu, Apr 2, 2015 14.37 14.50 14.27 14.33
1964 NASDAQ OPK Wed, Apr 1, 2015 14.24 14.43 14.00 14.27
1963 NASDAQ OPK Tue, Mar 31, 2015 14.56 14.72 14.15 14.17
1962 NASDAQ OPK Mon, Mar 30, 2015 14.77 14.78 14.56 14.71
1961 NASDAQ OPK Fri, Mar 27, 2015 14.37 14.70 14.28 14.49
1960 NASDAQ OPK Thu, Mar 26, 2015 13.94 14.57 13.84 14.27
1959 NASDAQ OPK Wed, Mar 25, 2015 14.75 14.85 13.84 13.88
1958 NASDAQ OPK Tue, Mar 24, 2015 15.01 15.20 14.68 14.76
1957 NASDAQ OPK Mon, Mar 23, 2015 14.63 15.15 14.55 14.93
1956 NASDAQ OPK Fri, Mar 20, 2015 14.74 14.78 14.39 14.52
1955 NASDAQ OPK Thu, Mar 19, 2015 14.59 14.76 14.49 14.67
1954 NASDAQ OPK Wed, Mar 18, 2015 14.48 14.58 14.32 14.42
1953 NASDAQ OPK Tue, Mar 17, 2015 14.60 14.73 14.50 14.66
1952 NASDAQ OPK Mon, Mar 16, 2015 14.67 14.78 14.54 14.67
1951 NASDAQ OPK Fri, Mar 13, 2015 14.59 14.90 14.45 14.63
1950 NASDAQ OPK Thu, Mar 12, 2015 14.11 14.62 14.01 14.60
1949 NASDAQ OPK Wed, Mar 11, 2015 14.09 14.19 13.94 14.09
1948 NASDAQ OPK Tue, Mar 10, 2015 13.90 14.05 13.74 13.98
1947 NASDAQ OPK Mon, Mar 9, 2015 14.33 14.33 13.87 13.98
1946 NASDAQ OPK Fri, Mar 6, 2015 14.33 14.49 14.07 14.11
1945 NASDAQ OPK Thu, Mar 5, 2015 14.49 14.67 14.25 14.32
1944 NASDAQ OPK Wed, Mar 4, 2015 14.24 14.52 14.13 14.37
1943 NASDAQ OPK Tue, Mar 3, 2015 14.05 14.41 13.92 14.40
1942 NASDAQ OPK Mon, Mar 2, 2015 14.08 14.49 13.42 14.44
1941 NASDAQ OPK Fri, Feb 27, 2015 14.80 14.85 14.43 14.56
1940 NASDAQ OPK Thu, Feb 26, 2015 15.14 15.21 14.63 14.84
1939 NASDAQ OPK Wed, Feb 25, 2015 14.66 15.23 14.54 15.03
1938 NASDAQ OPK Tue, Feb 24, 2015 14.69 14.79 14.44 14.61
1937 NASDAQ OPK Mon, Feb 23, 2015 14.23 14.86 14.21 14.71
1936 NASDAQ OPK Fri, Feb 20, 2015 14.36 14.44 14.18 14.20
1935 NASDAQ OPK Thu, Feb 19, 2015 14.07 14.40 14.01 14.36
1934 NASDAQ OPK Wed, Feb 18, 2015 13.99 14.10 13.75 14.05
1933 NASDAQ OPK Tue, Feb 17, 2015 13.91 14.14 13.84 14.00
1932 NASDAQ OPK Fri, Feb 13, 2015 14.04 14.05 13.10 13.80
1931 NASDAQ OPK Thu, Feb 12, 2015 14.32 14.38 13.79 14.08
1930 NASDAQ OPK Wed, Feb 11, 2015 14.36 14.71 13.94 14.18
1929 NASDAQ OPK Tue, Feb 10, 2015 14.38 14.40 13.90 14.36
1928 NASDAQ OPK Mon, Feb 9, 2015 13.55 14.59 13.51 14.21
1927 NASDAQ OPK Fri, Feb 6, 2015 13.47 13.99 13.20 13.50
1926 NASDAQ OPK Thu, Feb 5, 2015 12.96 13.54 12.84 13.47
1925 NASDAQ OPK Wed, Feb 4, 2015 12.35 12.89 12.17 12.77
1924 NASDAQ OPK Tue, Feb 3, 2015 12.70 12.74 11.70 12.35
1923 NASDAQ OPK Mon, Feb 2, 2015 12.27 12.65 12.04 12.63
1922 NASDAQ OPK Fri, Jan 30, 2015 11.89 12.32 11.80 12.13
1921 NASDAQ OPK Thu, Jan 29, 2015 11.71 11.95 11.48 11.86
1920 NASDAQ OPK Wed, Jan 28, 2015 11.48 11.55 11.10 11.34
1919 NASDAQ OPK Tue, Jan 27, 2015 11.24 11.60 11.22 11.38
1918 NASDAQ OPK Mon, Jan 26, 2015 10.92 11.38 10.86 11.37
1917 NASDAQ OPK Fri, Jan 23, 2015 10.61 10.99 10.59 10.84
1916 NASDAQ OPK Thu, Jan 22, 2015 10.36 10.62 10.22 10.61
1915 NASDAQ OPK Wed, Jan 21, 2015 10.25 10.40 10.15 10.29
1914 NASDAQ OPK Tue, Jan 20, 2015 10.10 10.29 9.96 10.24
1913 NASDAQ OPK Fri, Jan 16, 2015 9.93 10.13 9.91 10.02
1912 NASDAQ OPK Thu, Jan 15, 2015 10.33 10.35 9.89 9.97
1911 NASDAQ OPK Wed, Jan 14, 2015 10.20 10.40 10.14 10.30
1910 NASDAQ OPK Tue, Jan 13, 2015 10.27 10.44 10.02 10.19
1909 NASDAQ OPK Mon, Jan 12, 2015 10.14 10.39 10.12 10.27
1908 NASDAQ OPK Fri, Jan 9, 2015 10.09 10.14 10.00 10.10
1907 NASDAQ OPK Thu, Jan 8, 2015 10.15 10.15 9.96 10.06
1906 NASDAQ OPK Wed, Jan 7, 2015 9.99 10.15 9.95 10.09
1905 NASDAQ OPK Tue, Jan 6, 2015 10.09 10.22 9.81 9.91
1904 NASDAQ OPK Mon, Jan 5, 2015 9.90 10.25 9.88 10.06
1903 NASDAQ OPK Fri, Jan 2, 2015 10.03 10.10 9.82 9.93
1902 NASDAQ OPK Wed, Dec 31, 2014 9.98 10.16 9.92 9.99
1901 NASDAQ OPK Tue, Dec 30, 2014 9.77 9.91 9.71 9.85
1900 NASDAQ OPK Mon, Dec 29, 2014 9.72 9.83 9.65 9.78
1899 NASDAQ OPK Fri, Dec 26, 2014 9.65 9.75 9.57 9.65
1898 NASDAQ OPK Wed, Dec 24, 2014 9.53 9.73 9.49 9.63
1897 NASDAQ OPK Tue, Dec 23, 2014 9.91 9.96 9.36 9.42
1896 NASDAQ OPK Mon, Dec 22, 2014 9.67 9.89 9.47 9.79
1895 NASDAQ OPK Fri, Dec 19, 2014 9.46 9.64 9.36 9.60
1894 NASDAQ OPK Thu, Dec 18, 2014 9.52 9.58 9.14 9.46
1893 NASDAQ OPK Wed, Dec 17, 2014 8.75 9.44 8.67 9.33
1892 NASDAQ OPK Tue, Dec 16, 2014 8.83 8.89 8.62 8.70
1891 NASDAQ OPK Mon, Dec 15, 2014 9.31 9.41 8.75 8.86
1890 NASDAQ OPK Fri, Dec 12, 2014 8.25 8.30 8.16 8.18
1889 NASDAQ OPK Thu, Dec 11, 2014 8.39 8.46 8.29 8.29
1888 NASDAQ OPK Wed, Dec 10, 2014 8.50 8.55 8.32 8.33
1887 NASDAQ OPK Tue, Dec 9, 2014 8.39 8.59 8.35 8.55
1886 NASDAQ OPK Mon, Dec 8, 2014 8.40 8.57 8.39 8.42
1885 NASDAQ OPK Fri, Dec 5, 2014 8.33 8.42 8.32 8.42
1884 NASDAQ OPK Thu, Dec 4, 2014 8.37 8.38 8.30 8.33
1883 NASDAQ OPK Wed, Dec 3, 2014 8.32 8.38 8.29 8.33
1882 NASDAQ OPK Tue, Dec 2, 2014 8.27 8.38 8.25 8.36
1881 NASDAQ OPK Mon, Dec 1, 2014 8.40 8.40 8.23 8.26
1880 NASDAQ OPK Fri, Nov 28, 2014 8.37 8.48 8.33 8.38
1879 NASDAQ OPK Wed, Nov 26, 2014 8.38 8.40 8.34 8.37
1878 NASDAQ OPK Tue, Nov 25, 2014 8.30 8.37 8.25 8.34
1877 NASDAQ OPK Mon, Nov 24, 2014 8.11 8.30 8.11 8.30
1876 NASDAQ OPK Fri, Nov 21, 2014 8.24 8.25 8.10 8.15
1875 NASDAQ OPK Thu, Nov 20, 2014 8.14 8.18 8.08 8.13
1874 NASDAQ OPK Wed, Nov 19, 2014 8.20 8.22 8.13 8.16
1873 NASDAQ OPK Tue, Nov 18, 2014 8.21 8.28 8.20 8.23
1872 NASDAQ OPK Mon, Nov 17, 2014 8.23 8.28 8.20 8.21
1871 NASDAQ OPK Fri, Nov 14, 2014 8.33 8.36 8.21 8.29
1870 NASDAQ OPK Thu, Nov 13, 2014 8.39 8.49 8.38 8.38
1869 NASDAQ OPK Wed, Nov 12, 2014 8.50 8.53 8.32 8.37
1868 NASDAQ OPK Tue, Nov 11, 2014 8.68 8.70 8.47 8.53
1867 NASDAQ OPK Mon, Nov 10, 2014 8.38 8.73 8.30 8.63
1866 NASDAQ OPK Fri, Nov 7, 2014 8.30 8.34 8.19 8.32
1865 NASDAQ OPK Thu, Nov 6, 2014 8.40 8.44 8.32 8.42
1864 NASDAQ OPK Wed, Nov 5, 2014 8.37 8.44 8.29 8.38
1863 NASDAQ OPK Tue, Nov 4, 2014 8.34 8.38 8.31 8.36
1862 NASDAQ OPK Mon, Nov 3, 2014 8.32 8.42 8.32 8.37
1861 NASDAQ OPK Fri, Oct 31, 2014 8.50 8.52 8.35 8.35
1860 NASDAQ OPK Thu, Oct 30, 2014 8.33 8.40 8.22 8.39
1859 NASDAQ OPK Wed, Oct 29, 2014 8.43 8.47 8.33 8.39
1858 NASDAQ OPK Tue, Oct 28, 2014 8.40 8.49 8.39 8.46
1857 NASDAQ OPK Mon, Oct 27, 2014 8.33 8.41 8.29 8.39
1856 NASDAQ OPK Fri, Oct 24, 2014 8.39 8.43 8.35 8.40
1855 NASDAQ OPK Thu, Oct 23, 2014 8.25 8.40 8.23 8.36
1854 NASDAQ OPK Wed, Oct 22, 2014 8.39 8.39 8.20 8.22
1853 NASDAQ OPK Tue, Oct 21, 2014 8.40 8.41 8.32 8.39
1852 NASDAQ OPK Mon, Oct 20, 2014 8.24 8.40 8.21 8.36
1851 NASDAQ OPK Fri, Oct 17, 2014 8.38 8.40 8.18 8.25
1850 NASDAQ OPK Thu, Oct 16, 2014 8.40 8.44 8.21 8.31
1849 NASDAQ OPK Wed, Oct 15, 2014 8.33 8.57 8.25 8.51
1848 NASDAQ OPK Tue, Oct 14, 2014 8.27 8.49 8.22 8.43
1847 NASDAQ OPK Mon, Oct 13, 2014 8.17 8.39 8.02 8.18
1846 NASDAQ OPK Fri, Oct 10, 2014 8.22 8.33 8.05 8.16
1845 NASDAQ OPK Thu, Oct 9, 2014 8.47 8.59 8.26 8.27
1844 NASDAQ OPK Wed, Oct 8, 2014 8.25 8.50 8.21 8.48
1843 NASDAQ OPK Tue, Oct 7, 2014 8.35 8.37 8.25 8.25
1842 NASDAQ OPK Mon, Oct 6, 2014 8.44 8.46 8.35 8.36
1841 NASDAQ OPK Fri, Oct 3, 2014 8.42 8.56 8.34 8.38
1840 NASDAQ OPK Thu, Oct 2, 2014 8.42 8.47 8.24 8.32
1839 NASDAQ OPK Wed, Oct 1, 2014 8.51 8.53 8.30 8.39
1838 NASDAQ OPK Tue, Sep 30, 2014 8.63 8.67 8.51 8.51
1837 NASDAQ OPK Mon, Sep 29, 2014 8.53 8.67 8.47 8.64
1836 NASDAQ OPK Fri, Sep 26, 2014 8.55 8.69 8.50 8.60
1835 NASDAQ OPK Thu, Sep 25, 2014 8.25 8.54 8.25 8.53
1834 NASDAQ OPK Wed, Sep 24, 2014 8.27 8.28 8.09 8.19
1833 NASDAQ OPK Tue, Sep 23, 2014 8.45 8.46 8.25 8.25
1832 NASDAQ OPK Mon, Sep 22, 2014 8.39 8.39 8.15 8.29
1831 NASDAQ OPK Fri, Sep 19, 2014 8.49 8.57 8.35 8.42
1830 NASDAQ OPK Thu, Sep 18, 2014 8.60 8.63 8.45 8.48
1829 NASDAQ OPK Wed, Sep 17, 2014 8.58 8.70 8.53 8.54
1828 NASDAQ OPK Tue, Sep 16, 2014 8.50 8.56 8.46 8.50
1827 NASDAQ OPK Mon, Sep 15, 2014 8.64 8.65 8.42 8.52
1826 NASDAQ OPK Fri, Sep 12, 2014 8.62 8.63 8.54 8.59
1825 NASDAQ OPK Thu, Sep 11, 2014 8.57 8.62 8.50 8.62
1824 NASDAQ OPK Wed, Sep 10, 2014 8.59 8.66 8.51 8.59
1823 NASDAQ OPK Tue, Sep 9, 2014 8.67 8.68 8.51 8.55
1822 NASDAQ OPK Mon, Sep 8, 2014 8.62 8.72 8.55 8.69
1821 NASDAQ OPK Fri, Sep 5, 2014 8.57 8.60 8.35 8.51
1820 NASDAQ OPK Thu, Sep 4, 2014 8.74 8.74 8.55 8.58
1819 NASDAQ OPK Wed, Sep 3, 2014 8.88 8.88 8.68 8.70
1818 NASDAQ OPK Tue, Sep 2, 2014 8.87 8.89 8.77 8.82
1817 NASDAQ OPK Fri, Aug 29, 2014 8.88 8.97 8.83 8.90
1816 NASDAQ OPK Thu, Aug 28, 2014 8.77 8.89 8.77 8.86
1815 NASDAQ OPK Wed, Aug 27, 2014 9.03 9.03 8.83 8.89
1814 NASDAQ OPK Tue, Aug 26, 2014 8.92 9.07 8.89 8.97
1813 NASDAQ OPK Mon, Aug 25, 2014 8.80 8.98 8.80 8.88
1812 NASDAQ OPK Fri, Aug 22, 2014 8.84 8.85 8.75 8.81
1811 NASDAQ OPK Thu, Aug 21, 2014 8.89 8.93 8.75 8.82
1810 NASDAQ OPK Wed, Aug 20, 2014 8.96 9.01 8.82 8.88
1809 NASDAQ OPK Tue, Aug 19, 2014 9.10 9.17 9.01 9.06
1808 NASDAQ OPK Mon, Aug 18, 2014 9.06 9.21 9.05 9.17
1807 NASDAQ OPK Fri, Aug 15, 2014 9.19 9.20 9.05 9.08
1806 NASDAQ OPK Thu, Aug 14, 2014 9.11 9.15 9.01 9.11
1805 NASDAQ OPK Wed, Aug 13, 2014 9.12 9.20 8.89 9.18
1804 NASDAQ OPK Tue, Aug 12, 2014 9.30 9.40 8.81 9.08
1803 NASDAQ OPK Mon, Aug 11, 2014 9.53 9.62 9.27 9.36
1802 NASDAQ OPK Fri, Aug 8, 2014 9.22 9.48 9.16 9.46
1801 NASDAQ OPK Thu, Aug 7, 2014 9.04 9.24 9.04 9.20
1800 NASDAQ OPK Wed, Aug 6, 2014 8.90 9.10 8.84 9.05
1799 NASDAQ OPK Tue, Aug 5, 2014 8.79 8.90 8.75 8.89
1798 NASDAQ OPK Mon, Aug 4, 2014 8.81 8.89 8.72 8.84
1797 NASDAQ OPK Fri, Aug 1, 2014 8.82 8.91 8.60 8.74
1796 NASDAQ OPK Thu, Jul 31, 2014 8.86 8.98 8.77 8.82
1795 NASDAQ OPK Wed, Jul 30, 2014 9.11 9.19 8.91 8.94
1794 NASDAQ OPK Tue, Jul 29, 2014 9.00 9.15 8.94 9.05
1793 NASDAQ OPK Mon, Jul 28, 2014 9.12 9.13 8.82 8.93
1792 NASDAQ OPK Fri, Jul 25, 2014 9.08 9.22 8.98 9.00
1791 NASDAQ OPK Thu, Jul 24, 2014 9.05 9.26 9.01 9.13
1790 NASDAQ OPK Wed, Jul 23, 2014 8.72 9.08 8.71 9.02
1789 NASDAQ OPK Tue, Jul 22, 2014 8.77 8.79 8.62 8.67
1788 NASDAQ OPK Mon, Jul 21, 2014 8.58 8.74 8.57 8.68
1787 NASDAQ OPK Fri, Jul 18, 2014 8.62 8.75 8.57 8.62
1786 NASDAQ OPK Thu, Jul 17, 2014 8.73 8.79 8.55 8.60
1785 NASDAQ OPK Wed, Jul 16, 2014 8.82 8.89 8.68 8.76
1784 NASDAQ OPK Tue, Jul 15, 2014 8.87 8.93 8.64 8.73
1783 NASDAQ OPK Mon, Jul 14, 2014 9.05 9.10 8.84 8.86
1782 NASDAQ OPK Fri, Jul 11, 2014 8.80 9.19 8.71 8.99
1781 NASDAQ OPK Thu, Jul 10, 2014 8.64 8.99 8.59 8.77
1780 NASDAQ OPK Wed, Jul 9, 2014 8.59 8.83 8.57 8.70
1779 NASDAQ OPK Tue, Jul 8, 2014 8.68 8.72 8.45 8.56
1778 NASDAQ OPK Mon, Jul 7, 2014 8.87 8.94 8.66 8.68
1777 NASDAQ OPK Thu, Jul 3, 2014 8.83 8.98 8.78 8.95
1776 NASDAQ OPK Wed, Jul 2, 2014 8.83 8.88 8.73 8.77
1775 NASDAQ OPK Tue, Jul 1, 2014 8.90 8.99 8.85 8.87
1774 NASDAQ OPK Mon, Jun 30, 2014 9.05 9.09 8.82 8.84
1773 NASDAQ OPK Fri, Jun 27, 2014 8.83 9.16 8.83 9.10
1772 NASDAQ OPK Thu, Jun 26, 2014 8.70 8.95 8.63 8.88
1771 NASDAQ OPK Wed, Jun 25, 2014 8.73 8.76 8.52 8.71
1770 NASDAQ OPK Tue, Jun 24, 2014 9.09 9.11 8.75 8.78
1769 NASDAQ OPK Mon, Jun 23, 2014 9.23 9.39 9.02 9.05
1768 NASDAQ OPK Fri, Jun 20, 2014 9.20 9.28 9.06 9.23
1767 NASDAQ OPK Thu, Jun 19, 2014 9.29 9.34 9.13 9.28
1766 NASDAQ OPK Wed, Jun 18, 2014 9.38 9.44 9.17 9.40
1765 NASDAQ OPK Tue, Jun 17, 2014 9.17 9.52 9.16 9.47
1764 NASDAQ OPK Mon, Jun 16, 2014 8.98 9.35 8.95 9.20
1763 NASDAQ OPK Fri, Jun 13, 2014 9.13 9.17 8.94 9.03
1762 NASDAQ OPK Thu, Jun 12, 2014 9.05 9.11 8.82 9.10
1761 NASDAQ OPK Wed, Jun 11, 2014 9.20 9.31 9.01 9.07
1760 NASDAQ OPK Tue, Jun 10, 2014 9.29 9.31 9.13 9.21
1759 NASDAQ OPK Mon, Jun 9, 2014 9.28 9.48 9.24 9.35
1758 NASDAQ OPK Fri, Jun 6, 2014 9.28 9.46 9.18 9.23
1757 NASDAQ OPK Thu, Jun 5, 2014 8.85 9.32 8.84 9.25
1756 NASDAQ OPK Wed, Jun 4, 2014 8.81 8.90 8.74 8.77
1755 NASDAQ OPK Tue, Jun 3, 2014 8.53 8.90 8.45 8.85
1754 NASDAQ OPK Mon, Jun 2, 2014 8.70 8.75 8.44 8.55
1753 NASDAQ OPK Fri, May 30, 2014 8.85 8.86 8.50 8.62
1752 NASDAQ OPK Thu, May 29, 2014 8.90 8.95 8.84 8.84
1751 NASDAQ OPK Wed, May 28, 2014 8.87 9.00 8.85 8.89
1750 NASDAQ OPK Tue, May 27, 2014 8.83 9.00 8.78 8.92
1749 NASDAQ OPK Fri, May 23, 2014 8.64 8.87 8.50 8.74
1748 NASDAQ OPK Thu, May 22, 2014 8.30 8.58 8.25 8.57
1747 NASDAQ OPK Wed, May 21, 2014 8.37 8.44 8.20 8.32
1746 NASDAQ OPK Tue, May 20, 2014 8.35 8.41 8.20 8.27
1745 NASDAQ OPK Mon, May 19, 2014 8.18 8.40 8.18 8.36
1744 NASDAQ OPK Fri, May 16, 2014 8.19 8.23 8.00 8.17
1743 NASDAQ OPK Thu, May 15, 2014 8.20 8.25 8.04 8.17
1742 NASDAQ OPK Wed, May 14, 2014 8.28 8.40 8.16 8.18
1741 NASDAQ OPK Tue, May 13, 2014 8.45 8.53 8.30 8.33
1740 NASDAQ OPK Mon, May 12, 2014 8.22 8.48 8.22 8.41
1739 NASDAQ OPK Fri, May 9, 2014 7.98 8.25 7.90 8.24
1738 NASDAQ OPK Thu, May 8, 2014 8.20 8.33 8.00 8.01
1737 NASDAQ OPK Wed, May 7, 2014 8.36 8.36 8.10 8.23
1736 NASDAQ OPK Tue, May 6, 2014 8.46 8.46 8.11 8.16
1735 NASDAQ OPK Mon, May 5, 2014 8.25 8.47 8.20 8.38
1734 NASDAQ OPK Fri, May 2, 2014 8.46 8.47 8.25 8.26
1733 NASDAQ OPK Thu, May 1, 2014 8.28 8.39 8.12 8.39
1732 NASDAQ OPK Wed, Apr 30, 2014 8.20 8.28 8.09 8.27
1731 NASDAQ OPK Tue, Apr 29, 2014 8.15 8.34 8.13 8.31
1730 NASDAQ OPK Mon, Apr 28, 2014 8.09 8.25 7.82 8.08
1729 NASDAQ OPK Fri, Apr 25, 2014 8.25 8.26 7.98 8.05
1728 NASDAQ OPK Thu, Apr 24, 2014 8.25 8.32 8.10 8.24
1727 NASDAQ OPK Wed, Apr 23, 2014 8.29 8.33 8.10 8.16
1726 NASDAQ OPK Tue, Apr 22, 2014 8.44 8.50 8.22 8.31
1725 NASDAQ OPK Mon, Apr 21, 2014 8.22 8.42 8.04 8.38
1724 NASDAQ OPK Thu, Apr 17, 2014 8.29 8.37 8.05 8.14
1723 NASDAQ OPK Wed, Apr 16, 2014 8.39 8.41 8.16 8.33
1722 NASDAQ OPK Tue, Apr 15, 2014 8.37 8.40 7.83 8.17
1721 NASDAQ OPK Mon, Apr 14, 2014 8.97 8.98 8.11 8.37
1720 NASDAQ OPK Fri, Apr 11, 2014 9.10 9.20 8.72 8.87
1719 NASDAQ OPK Thu, Apr 10, 2014 9.62 9.65 9.13 9.21
1718 NASDAQ OPK Wed, Apr 9, 2014 9.55 9.70 9.46 9.67
1717 NASDAQ OPK Tue, Apr 8, 2014 9.39 9.63 9.26 9.50
1716 NASDAQ OPK Mon, Apr 7, 2014 9.20 9.39 9.03 9.24
1715 NASDAQ OPK Fri, Apr 4, 2014 9.58 9.73 9.08 9.19
1714 NASDAQ OPK Thu, Apr 3, 2014 9.60 9.62 9.32 9.49
1713 NASDAQ OPK Wed, Apr 2, 2014 9.73 9.83 9.45 9.60
1712 NASDAQ OPK Tue, Apr 1, 2014 9.27 9.72 9.23 9.71
1711 NASDAQ OPK Mon, Mar 31, 2014 9.03 9.35 8.92 9.32
1710 NASDAQ OPK Fri, Mar 28, 2014 9.04 9.18 8.81 8.96
1709 NASDAQ OPK Thu, Mar 27, 2014 9.07 9.24 8.88 9.05
1708 NASDAQ OPK Wed, Mar 26, 2014 9.35 9.38 9.06 9.08
1707 NASDAQ OPK Tue, Mar 25, 2014 9.41 9.50 9.07 9.29
1706 NASDAQ OPK Mon, Mar 24, 2014 9.48 9.50 9.06 9.29
1705 NASDAQ OPK Fri, Mar 21, 2014 9.72 9.74 9.23 9.35
1704 NASDAQ OPK Thu, Mar 20, 2014 9.65 9.90 9.54 9.67
1703 NASDAQ OPK Wed, Mar 19, 2014 9.85 9.92 9.65 9.72
1702 NASDAQ OPK Tue, Mar 18, 2014 10.09 10.14 9.90 9.93
1701 NASDAQ OPK Mon, Mar 17, 2014 9.77 10.15 9.76 9.96
1700 NASDAQ OPK Fri, Mar 14, 2014 9.61 9.83 9.52 9.66
1699 NASDAQ OPK Thu, Mar 13, 2014 9.52 9.60 9.21 9.32
1698 NASDAQ OPK Wed, Mar 12, 2014 9.07 9.41 9.01 9.41
1697 NASDAQ OPK Tue, Mar 11, 2014 9.24 9.47 9.05 9.14
1696 NASDAQ OPK Mon, Mar 10, 2014 9.24 9.43 9.09 9.24
1695 NASDAQ OPK Fri, Mar 7, 2014 9.12 9.28 8.91 9.19
1694 NASDAQ OPK Thu, Mar 6, 2014 9.45 9.48 8.93 8.99
1693 NASDAQ OPK Wed, Mar 5, 2014 9.50 9.52 9.34 9.40
1692 NASDAQ OPK Tue, Mar 4, 2014 9.57 9.86 9.41 9.46
1691 NASDAQ OPK Mon, Mar 3, 2014 9.25 9.50 9.20 9.40
1690 NASDAQ OPK Fri, Feb 28, 2014 9.46 10.25 9.31 9.52
1689 NASDAQ OPK Thu, Feb 27, 2014 8.96 9.37 8.83 9.35
1688 NASDAQ OPK Wed, Feb 26, 2014 9.06 9.15 8.88 8.96
1687 NASDAQ OPK Tue, Feb 25, 2014 8.92 9.15 8.84 9.06
1686 NASDAQ OPK Mon, Feb 24, 2014 8.75 9.07 8.71 8.94
1685 NASDAQ OPK Fri, Feb 21, 2014 8.91 9.20 8.82 8.83
1684 NASDAQ OPK Thu, Feb 20, 2014 8.45 8.78 8.36 8.71
1683 NASDAQ OPK Wed, Feb 19, 2014 8.61 8.64 8.45 8.48
1682 NASDAQ OPK Tue, Feb 18, 2014 8.62 8.78 8.50 8.65
1681 NASDAQ OPK Fri, Feb 14, 2014 8.56 9.08 8.45 8.49
1680 NASDAQ OPK Thu, Feb 13, 2014 7.70 8.47 7.67 8.39
1679 NASDAQ OPK Wed, Feb 12, 2014 7.78 7.83 7.69 7.74
1678 NASDAQ OPK Tue, Feb 11, 2014 7.85 7.85 7.71 7.81
1677 NASDAQ OPK Mon, Feb 10, 2014 7.88 7.90 7.70 7.85
1676 NASDAQ OPK Fri, Feb 7, 2014 7.68 7.80 7.58 7.74
1675 NASDAQ OPK Thu, Feb 6, 2014 7.58 7.72 7.50 7.65
1674 NASDAQ OPK Wed, Feb 5, 2014 7.58 7.66 7.32 7.58
1673 NASDAQ OPK Tue, Feb 4, 2014 7.70 7.77 7.56 7.60
1672 NASDAQ OPK Mon, Feb 3, 2014 8.02 8.02 7.57 7.65
1671 NASDAQ OPK Fri, Jan 31, 2014 8.05 8.05 7.89 7.93
1670 NASDAQ OPK Thu, Jan 30, 2014 8.10 8.20 7.99 8.15
1669 NASDAQ OPK Wed, Jan 29, 2014 8.06 8.16 7.93 7.97
1668 NASDAQ OPK Tue, Jan 28, 2014 8.17 8.34 7.96 8.17
1667 NASDAQ OPK Mon, Jan 27, 2014 8.46 8.47 7.81 8.13
1666 NASDAQ OPK Fri, Jan 24, 2014 8.74 8.79 8.40 8.46
1665 NASDAQ OPK Thu, Jan 23, 2014 8.83 8.88 8.69 8.83
1664 NASDAQ OPK Wed, Jan 22, 2014 8.89 9.15 8.75 8.91
1663 NASDAQ OPK Tue, Jan 21, 2014 8.76 8.90 8.63 8.89
1662 NASDAQ OPK Fri, Jan 17, 2014 8.90 8.90 8.65 8.72
1661 NASDAQ OPK Thu, Jan 16, 2014 8.88 8.89 8.67 8.80
1660 NASDAQ OPK Wed, Jan 15, 2014 9.05 9.15 8.73 8.85
1659 NASDAQ OPK Tue, Jan 14, 2014 8.92 9.07 8.77 9.00
1658 NASDAQ OPK Mon, Jan 13, 2014 8.62 9.19 8.62 8.80
1657 NASDAQ OPK Fri, Jan 10, 2014 8.55 8.65 8.37 8.63
1656 NASDAQ OPK Thu, Jan 9, 2014 8.46 8.58 8.39 8.43
1655 NASDAQ OPK Wed, Jan 8, 2014 8.37 8.57 8.28 8.48
1654 NASDAQ OPK Tue, Jan 7, 2014 8.44 8.56 8.34 8.35
1653 NASDAQ OPK Mon, Jan 6, 2014 8.54 8.58 8.30 8.36
1652 NASDAQ OPK Fri, Jan 3, 2014 8.42 8.65 8.42 8.58
1651 NASDAQ OPK Thu, Jan 2, 2014 8.31 8.50 8.18 8.41
1650 NASDAQ OPK Tue, Dec 31, 2013 8.52 8.52 8.40 8.44
1649 NASDAQ OPK Mon, Dec 30, 2013 8.57 8.59 8.35 8.47
1648 NASDAQ OPK Fri, Dec 27, 2013 8.80 8.84 8.51 8.58
1647 NASDAQ OPK Thu, Dec 26, 2013 8.93 8.99 8.73 8.80
1646 NASDAQ OPK Tue, Dec 24, 2013 8.89 9.05 8.85 9.04
1645 NASDAQ OPK Mon, Dec 23, 2013 9.19 9.20 8.81 8.97
1644 NASDAQ OPK Fri, Dec 20, 2013 8.82 9.14 8.77 9.03
1643 NASDAQ OPK Thu, Dec 19, 2013 8.82 8.97 8.71 8.81
1642 NASDAQ OPK Wed, Dec 18, 2013 8.52 8.92 8.34 8.86
1641 NASDAQ OPK Tue, Dec 17, 2013 8.82 8.89 8.17 8.40
1640 NASDAQ OPK Mon, Dec 16, 2013 9.48 9.50 8.74 9.09
1639 NASDAQ OPK Fri, Dec 13, 2013 9.47 9.52 8.34 8.97
1638 NASDAQ OPK Thu, Dec 12, 2013 10.10 10.15 9.42 9.42
1637 NASDAQ OPK Wed, Dec 11, 2013 11.05 11.09 9.45 9.81
1636 NASDAQ OPK Tue, Dec 10, 2013 11.53 11.62 11.26 11.50
1635 NASDAQ OPK Mon, Dec 9, 2013 11.43 11.64 11.01 11.63
1634 NASDAQ OPK Fri, Dec 6, 2013 10.76 11.14 10.46 11.05
1633 NASDAQ OPK Thu, Dec 5, 2013 10.59 10.75 10.53 10.55
1632 NASDAQ OPK Wed, Dec 4, 2013 10.52 10.64 10.34 10.53
1631 NASDAQ OPK Tue, Dec 3, 2013 10.65 10.67 10.27 10.46
1630 NASDAQ OPK Mon, Dec 2, 2013 10.71 10.73 10.60 10.66
1629 NASDAQ OPK Fri, Nov 29, 2013 10.49 10.60 10.41 10.54
1628 NASDAQ OPK Wed, Nov 27, 2013 10.69 10.69 10.21 10.36
1627 NASDAQ OPK Tue, Nov 26, 2013 10.00 10.50 9.89 10.39
1626 NASDAQ OPK Mon, Nov 25, 2013 10.04 10.35 9.86 9.92
1625 NASDAQ OPK Fri, Nov 22, 2013 9.84 10.20 9.72 9.99
1624 NASDAQ OPK Thu, Nov 21, 2013 10.32 10.92 9.62 9.94
1623 NASDAQ OPK Wed, Nov 20, 2013 9.58 10.40 9.55 10.29
1622 NASDAQ OPK Tue, Nov 19, 2013 9.57 9.69 9.36 9.55
1621 NASDAQ OPK Mon, Nov 18, 2013 10.15 10.15 9.59 9.60
1620 NASDAQ OPK Fri, Nov 15, 2013 10.06 10.18 9.96 10.05
1619 NASDAQ OPK Thu, Nov 14, 2013 10.28 10.33 10.03 10.13
1618 NASDAQ OPK Wed, Nov 13, 2013 10.15 10.23 9.92 10.22
1617 NASDAQ OPK Tue, Nov 12, 2013 10.27 10.31 10.05 10.17
1616 NASDAQ OPK Mon, Nov 11, 2013 10.35 10.72 10.18 10.29
1615 NASDAQ OPK Fri, Nov 8, 2013 10.02 10.44 10.00 10.31
1614 NASDAQ OPK Thu, Nov 7, 2013 10.36 10.47 10.02 10.04
1613 NASDAQ OPK Wed, Nov 6, 2013 10.80 10.92 10.08 10.31
1612 NASDAQ OPK Tue, Nov 5, 2013 10.65 10.95 10.49 10.72
1611 NASDAQ OPK Mon, Nov 4, 2013 10.06 10.80 10.05 10.75
1610 NASDAQ OPK Fri, Nov 1, 2013 9.95 10.13 9.80 10.02
1609 NASDAQ OPK Thu, Oct 31, 2013 9.95 10.18 9.78 10.02
1608 NASDAQ OPK Wed, Oct 30, 2013 10.48 10.64 9.86 9.94
1607 NASDAQ OPK Tue, Oct 29, 2013 10.73 10.73 10.30 10.39
1606 NASDAQ OPK Mon, Oct 28, 2013 10.77 10.79 10.58 10.73
1605 NASDAQ OPK Fri, Oct 25, 2013 10.91 10.98 10.60 10.74
1604 NASDAQ OPK Thu, Oct 24, 2013 10.94 11.00 10.76 10.90
1603 NASDAQ OPK Wed, Oct 23, 2013 11.19 11.20 10.66 10.90
1602 NASDAQ OPK Tue, Oct 22, 2013 10.95 11.28 10.80 11.10
1601 NASDAQ OPK Mon, Oct 21, 2013 11.40 11.40 10.30 10.68
1600 NASDAQ OPK Fri, Oct 18, 2013 12.44 12.47 11.32 11.60
1599 NASDAQ OPK Thu, Oct 17, 2013 12.35 12.46 12.05 12.35
1598 NASDAQ OPK Wed, Oct 16, 2013 12.23 12.95 11.75 12.27
1597 NASDAQ OPK Tue, Oct 15, 2013 11.04 12.84 11.04 12.28
1596 NASDAQ OPK Mon, Oct 14, 2013 10.00 10.95 9.97 10.91
1595 NASDAQ OPK Fri, Oct 11, 2013 9.99 10.13 9.81 10.07
1594 NASDAQ OPK Thu, Oct 10, 2013 9.69 10.02 9.66 9.99
1593 NASDAQ OPK Wed, Oct 9, 2013 9.63 9.63 9.23 9.51
1592 NASDAQ OPK Tue, Oct 8, 2013 10.00 10.01 9.41 9.51
1591 NASDAQ OPK Mon, Oct 7, 2013 9.95 10.31 9.85 9.95
1590 NASDAQ OPK Fri, Oct 4, 2013 9.80 10.00 9.68 9.97
1589 NASDAQ OPK Thu, Oct 3, 2013 9.62 10.22 9.50 9.79
1588 NASDAQ OPK Wed, Oct 2, 2013 9.24 9.63 9.15 9.49
1587 NASDAQ OPK Tue, Oct 1, 2013 8.82 9.18 8.80 9.14
1586 NASDAQ OPK Mon, Sep 30, 2013 8.67 8.82 8.61 8.81
1585 NASDAQ OPK Fri, Sep 27, 2013 8.71 8.72 8.60 8.66
1584 NASDAQ OPK Thu, Sep 26, 2013 8.75 8.88 8.68 8.76
1583 NASDAQ OPK Wed, Sep 25, 2013 8.75 8.85 8.64 8.73
1582 NASDAQ OPK Tue, Sep 24, 2013 8.49 8.85 8.45 8.73
1581 NASDAQ OPK Mon, Sep 23, 2013 8.35 8.49 8.28 8.49
1580 NASDAQ OPK Fri, Sep 20, 2013 8.45 8.45 8.26 8.38
1579 NASDAQ OPK Thu, Sep 19, 2013 8.47 8.49 8.26 8.40
1578 NASDAQ OPK Wed, Sep 18, 2013 8.47 8.48 8.26 8.48
1577 NASDAQ OPK Tue, Sep 17, 2013 8.45 8.56 8.45 8.50
1576 NASDAQ OPK Mon, Sep 16, 2013 8.59 8.69 8.48 8.51
1575 NASDAQ OPK Fri, Sep 13, 2013 8.43 8.55 8.36 8.54
1574 NASDAQ OPK Thu, Sep 12, 2013 8.43 8.50 8.34 8.44
1573 NASDAQ OPK Wed, Sep 11, 2013 8.61 8.63 8.47 8.48
1572 NASDAQ OPK Tue, Sep 10, 2013 8.65 8.70 8.47 8.59
1571 NASDAQ OPK Mon, Sep 9, 2013 8.63 8.65 8.45 8.59
1570 NASDAQ OPK Fri, Sep 6, 2013 8.45 8.58 8.32 8.49
1569 NASDAQ OPK Thu, Sep 5, 2013 8.58 8.67 8.36 8.46
1568 NASDAQ OPK Wed, Sep 4, 2013 9.15 9.20 8.56 8.60
1567 NASDAQ OPK Tue, Sep 3, 2013 9.09 9.27 8.85 9.19
1566 NASDAQ OPK Fri, Aug 30, 2013 8.45 10.00 8.22 9.24
1565 NASDAQ OPK Thu, Aug 29, 2013 8.52 8.55 8.03 8.49
1564 NASDAQ OPK Wed, Aug 28, 2013 8.48 8.76 8.46 8.58
1563 NASDAQ OPK Tue, Aug 27, 2013 8.73 8.76 8.41 8.50
1562 NASDAQ OPK Mon, Aug 26, 2013 8.57 9.02 8.52 8.77
1561 NASDAQ OPK Fri, Aug 23, 2013 8.65 8.68 8.45 8.50
1560 NASDAQ OPK Thu, Aug 22, 2013 8.45 8.63 8.39 8.56
1559 NASDAQ OPK Wed, Aug 21, 2013 8.76 8.87 8.32 8.42
1558 NASDAQ OPK Tue, Aug 20, 2013 8.41 8.62 8.28 8.56
1557 NASDAQ OPK Mon, Aug 19, 2013 7.92 8.30 7.92 8.19
1556 NASDAQ OPK Fri, Aug 16, 2013 7.81 8.06 7.81 7.92
1555 NASDAQ OPK Thu, Aug 15, 2013 7.84 8.00 7.80 7.85
1554 NASDAQ OPK Wed, Aug 14, 2013 7.89 7.94 7.75 7.88
1553 NASDAQ OPK Tue, Aug 13, 2013 7.87 8.00 7.66 7.74
1552 NASDAQ OPK Mon, Aug 12, 2013 7.45 7.77 7.39 7.77
1551 NASDAQ OPK Fri, Aug 9, 2013 7.51 7.60 7.43 7.49
1550 NASDAQ OPK Thu, Aug 8, 2013 7.48 7.60 7.43 7.49
1549 NASDAQ OPK Wed, Aug 7, 2013 7.41 7.47 7.33 7.44
1548 NASDAQ OPK Tue, Aug 6, 2013 7.45 7.52 7.32 7.42
1547 NASDAQ OPK Mon, Aug 5, 2013 7.52 7.59 7.44 7.46
1546 NASDAQ OPK Fri, Aug 2, 2013 7.49 7.56 7.48 7.52
1545 NASDAQ OPK Thu, Aug 1, 2013 7.53 7.55 7.42 7.53
1544 NASDAQ OPK Wed, Jul 31, 2013 7.54 7.55 7.44 7.45
1543 NASDAQ OPK Tue, Jul 30, 2013 7.61 7.63 7.48 7.50
1542 NASDAQ OPK Mon, Jul 29, 2013 7.68 7.69 7.58 7.61
1541 NASDAQ OPK Fri, Jul 26, 2013 7.64 7.70 7.58 7.68
1540 NASDAQ OPK Thu, Jul 25, 2013 7.57 7.64 7.51 7.64
1539 NASDAQ OPK Wed, Jul 24, 2013 7.75 7.77 7.47 7.57
1538 NASDAQ OPK Tue, Jul 23, 2013 7.77 7.78 7.66 7.72
1537 NASDAQ OPK Mon, Jul 22, 2013 7.80 7.80 7.65 7.72
1536 NASDAQ OPK Fri, Jul 19, 2013 7.72 7.77 7.60 7.72
1535 NASDAQ OPK Thu, Jul 18, 2013 7.54 7.74 7.53 7.67
1534 NASDAQ OPK Wed, Jul 17, 2013 7.44 7.58 7.44 7.48
1533 NASDAQ OPK Tue, Jul 16, 2013 7.42 7.44 7.30 7.44
1532 NASDAQ OPK Mon, Jul 15, 2013 7.50 7.50 7.36 7.39
1531 NASDAQ OPK Fri, Jul 12, 2013 7.32 7.46 7.25 7.46
1530 NASDAQ OPK Thu, Jul 11, 2013 7.31 7.33 7.23 7.31
1529 NASDAQ OPK Wed, Jul 10, 2013 7.15 7.27 7.14 7.22
1528 NASDAQ OPK Tue, Jul 9, 2013 7.35 7.35 7.15 7.21
1527 NASDAQ OPK Mon, Jul 8, 2013 7.31 7.34 7.23 7.31
1526 NASDAQ OPK Fri, Jul 5, 2013 7.28 7.29 7.13 7.25
1525 NASDAQ OPK Wed, Jul 3, 2013 7.29 7.39 7.16 7.18
1524 NASDAQ OPK Tue, Jul 2, 2013 7.42 7.47 7.23 7.28
1523 NASDAQ OPK Mon, Jul 1, 2013 7.29 7.48 7.24 7.40
1522 NASDAQ OPK Fri, Jun 28, 2013 7.18 7.23 7.07 7.10
1521 NASDAQ OPK Thu, Jun 27, 2013 7.07 7.18 6.99 7.16
1520 NASDAQ OPK Wed, Jun 26, 2013 6.95 7.08 6.92 6.99
1519 NASDAQ OPK Tue, Jun 25, 2013 6.99 7.01 6.75 6.94
1518 NASDAQ OPK Mon, Jun 24, 2013 6.97 7.02 6.87 6.92
1517 NASDAQ OPK Fri, Jun 21, 2013 7.02 7.11 7.00 7.02
1516 NASDAQ OPK Thu, Jun 20, 2013 7.04 7.08 6.91 6.98
1515 NASDAQ OPK Wed, Jun 19, 2013 7.18 7.20 7.05 7.06
1514 NASDAQ OPK Tue, Jun 18, 2013 7.19 7.29 7.10 7.14
1513 NASDAQ OPK Mon, Jun 17, 2013 6.90 7.10 6.83 7.07
1512 NASDAQ OPK Fri, Jun 14, 2013 6.82 6.89 6.75 6.83
1511 NASDAQ OPK Thu, Jun 13, 2013 6.66 6.80 6.61 6.80
1510 NASDAQ OPK Wed, Jun 12, 2013 6.62 6.75 6.60 6.68
1509 NASDAQ OPK Tue, Jun 11, 2013 6.50 6.61 6.43 6.58
1508 NASDAQ OPK Mon, Jun 10, 2013 6.62 6.62 6.44 6.54
1507 NASDAQ OPK Fri, Jun 7, 2013 6.62 6.66 6.47 6.50
1506 NASDAQ OPK Thu, Jun 6, 2013 6.32 6.55 6.23 6.55
1505 NASDAQ OPK Wed, Jun 5, 2013 6.37 6.45 6.14 6.17
1504 NASDAQ OPK Tue, Jun 4, 2013 6.62 6.63 6.36 6.39
1503 NASDAQ OPK Mon, Jun 3, 2013 6.60 6.65 6.44 6.57
1502 NASDAQ OPK Fri, May 31, 2013 6.70 6.72 6.58 6.61
1501 NASDAQ OPK Thu, May 30, 2013 6.73 6.82 6.69 6.72
1500 NASDAQ OPK Wed, May 29, 2013 6.87 6.87 6.67 6.72
1499 NASDAQ OPK Tue, May 28, 2013 7.02 7.02 6.82 6.88
1498 NASDAQ OPK Fri, May 24, 2013 6.96 6.96 6.84 6.93
1497 NASDAQ OPK Thu, May 23, 2013 6.80 7.04 6.72 6.97
1496 NASDAQ OPK Wed, May 22, 2013 6.92 7.10 6.83 6.89
1495 NASDAQ OPK Tue, May 21, 2013 7.05 7.11 6.92 6.94
1494 NASDAQ OPK Mon, May 20, 2013 7.17 7.18 6.99 7.00
1493 NASDAQ OPK Fri, May 17, 2013 7.05 7.16 7.00 7.16
1492 NASDAQ OPK Thu, May 16, 2013 7.18 7.18 6.99 7.01
1491 NASDAQ OPK Wed, May 15, 2013 6.97 7.18 6.96 7.13
1490 NASDAQ OPK Tue, May 14, 2013 6.87 6.99 6.87 6.96
1489 NASDAQ OPK Mon, May 13, 2013 6.95 6.95 6.75 6.90
1488 NASDAQ OPK Fri, May 10, 2013 6.85 6.94 6.80 6.92
1487 NASDAQ OPK Thu, May 9, 2013 6.63 6.94 6.62 6.81
1486 NASDAQ OPK Wed, May 8, 2013 6.73 6.78 6.65 6.69
1485 NASDAQ OPK Tue, May 7, 2013 6.75 6.79 6.71 6.76
1484 NASDAQ OPK Mon, May 6, 2013 6.76 6.78 6.60 6.70
1483 NASDAQ OPK Fri, May 3, 2013 6.61 6.79 6.61 6.67
1482 NASDAQ OPK Thu, May 2, 2013 6.40 6.65 6.40 6.54
1481 NASDAQ OPK Wed, May 1, 2013 6.65 6.70 6.27 6.41
1480 NASDAQ OPK Tue, Apr 30, 2013 6.88 6.90 6.55 6.66
1479 NASDAQ OPK Mon, Apr 29, 2013 6.92 7.00 6.83 6.86
1478 NASDAQ OPK Fri, Apr 26, 2013 7.06 7.07 6.89 6.92
1477 NASDAQ OPK Thu, Apr 25, 2013 6.91 7.07 6.88 7.04
1476 NASDAQ OPK Wed, Apr 24, 2013 6.85 7.15 6.77 6.96
1475 NASDAQ OPK Tue, Apr 23, 2013 7.16 7.20 6.96 7.06
1474 NASDAQ OPK Mon, Apr 22, 2013 7.06 7.10 6.98 7.10
1473 NASDAQ OPK Fri, Apr 19, 2013 6.97 7.09 6.96 7.02
1472 NASDAQ OPK Thu, Apr 18, 2013 7.05 7.08 6.91 6.95
1471 NASDAQ OPK Wed, Apr 17, 2013 7.14 7.16 6.92 7.02
1470 NASDAQ OPK Tue, Apr 16, 2013 7.16 7.20 7.02 7.13
1469 NASDAQ OPK Mon, Apr 15, 2013 7.13 7.13 6.92 6.94
1468 NASDAQ OPK Fri, Apr 12, 2013 7.19 7.22 7.05 7.17
1467 NASDAQ OPK Thu, Apr 11, 2013 7.12 7.33 7.10 7.19
1466 NASDAQ OPK Wed, Apr 10, 2013 6.95 7.10 6.86 7.10
1465 NASDAQ OPK Tue, Apr 9, 2013 7.14 7.20 6.80 6.95
1464 NASDAQ OPK Mon, Apr 8, 2013 7.27 7.34 7.17 7.22
1463 NASDAQ OPK Fri, Apr 5, 2013 7.06 7.23 7.01 7.17
1462 NASDAQ OPK Thu, Apr 4, 2013 7.00 7.30 6.90 7.29
1461 NASDAQ OPK Wed, Apr 3, 2013 7.45 7.47 6.65 7.00
1460 NASDAQ OPK Tue, Apr 2, 2013 7.56 7.60 7.33 7.40
1459 NASDAQ OPK Mon, Apr 1, 2013 7.63 7.65 7.36 7.55
1458 NASDAQ OPK Thu, Mar 28, 2013 7.64 7.70 7.58 7.63
1457 NASDAQ OPK Wed, Mar 27, 2013 7.58 7.64 7.54 7.62
1456 NASDAQ OPK Tue, Mar 26, 2013 7.65 7.69 7.57 7.65
1455 NASDAQ OPK Mon, Mar 25, 2013 7.61 7.66 7.44 7.64
1454 NASDAQ OPK Fri, Mar 22, 2013 7.39 7.66 7.36 7.63
1453 NASDAQ OPK Thu, Mar 21, 2013 7.55 7.59 7.21 7.35
1452 NASDAQ OPK Wed, Mar 20, 2013 7.68 7.71 7.53 7.56
1451 NASDAQ OPK Tue, Mar 19, 2013 7.67 7.70 7.40 7.52
1450 NASDAQ OPK Mon, Mar 18, 2013 7.70 7.77 7.58 7.61
1449 NASDAQ OPK Fri, Mar 15, 2013 7.60 7.83 7.52 7.83
1448 NASDAQ OPK Thu, Mar 14, 2013 7.48 7.57 7.43 7.54
1447 NASDAQ OPK Wed, Mar 13, 2013 7.50 7.52 7.35 7.51
1446 NASDAQ OPK Tue, Mar 12, 2013 7.49 7.53 7.43 7.49
1445 NASDAQ OPK Mon, Mar 11, 2013 7.51 7.59 7.42 7.48
1444 NASDAQ OPK Fri, Mar 8, 2013 7.45 7.54 7.27 7.48
1443 NASDAQ OPK Thu, Mar 7, 2013 7.37 7.49 7.26 7.39
1442 NASDAQ OPK Wed, Mar 6, 2013 7.34 7.39 7.25 7.32
1441 NASDAQ OPK Tue, Mar 5, 2013 7.25 7.40 7.10 7.30
1440 NASDAQ OPK Mon, Mar 4, 2013 7.05 7.20 6.95 7.16
1439 NASDAQ OPK Fri, Mar 1, 2013 6.96 7.09 6.85 6.99
1438 NASDAQ OPK Thu, Feb 28, 2013 7.02 7.10 6.93 6.94
1437 NASDAQ OPK Wed, Feb 27, 2013 7.10 7.15 6.99 7.03
1436 NASDAQ OPK Tue, Feb 26, 2013 7.10 7.17 6.80 7.15
1435 NASDAQ OPK Mon, Feb 25, 2013 7.07 7.35 7.00 7.00
1434 NASDAQ OPK Fri, Feb 22, 2013 6.70 7.10 6.70 7.03
1433 NASDAQ OPK Thu, Feb 21, 2013 6.65 6.77 6.60 6.68
1432 NASDAQ OPK Wed, Feb 20, 2013 6.77 6.82 6.52 6.63
1431 NASDAQ OPK Tue, Feb 19, 2013 6.81 6.84 6.70 6.78
1430 NASDAQ OPK Fri, Feb 15, 2013 6.85 6.86 6.69 6.73
1429 NASDAQ OPK Thu, Feb 14, 2013 6.83 6.87 6.68 6.81
1428 NASDAQ OPK Wed, Feb 13, 2013 6.68 6.74 6.61 6.73
1427 NASDAQ OPK Tue, Feb 12, 2013 6.75 6.83 6.63 6.66
1426 NASDAQ OPK Mon, Feb 11, 2013 6.48 6.74 6.38 6.72
1425 NASDAQ OPK Fri, Feb 8, 2013 6.84 6.90 6.08 6.49
1424 NASDAQ OPK Thu, Feb 7, 2013 6.92 6.99 6.77 6.81
1423 NASDAQ OPK Wed, Feb 6, 2013 6.95 6.97 6.70 6.89
1422 NASDAQ OPK Tue, Feb 5, 2013 7.03 7.11 6.96 6.98
1421 NASDAQ OPK Mon, Feb 4, 2013 6.81 7.09 6.70 6.99
1420 NASDAQ OPK Fri, Feb 1, 2013 6.54 6.76 6.47 6.73
1419 NASDAQ OPK Thu, Jan 31, 2013 6.46 6.62 6.41 6.42
1418 NASDAQ OPK Wed, Jan 30, 2013 6.81 6.88 6.44 6.47
1417 NASDAQ OPK Tue, Jan 29, 2013 7.05 7.22 6.66 6.75
1416 NASDAQ OPK Mon, Jan 28, 2013 6.23 6.70 6.13 6.60
1415 NASDAQ OPK Fri, Jan 25, 2013 6.06 6.24 5.99 6.20
1414 NASDAQ OPK Thu, Jan 24, 2013 6.19 6.28 5.87 5.89
1413 NASDAQ OPK Wed, Jan 23, 2013 6.44 6.57 6.31 6.32
1412 NASDAQ OPK Tue, Jan 22, 2013 6.08 6.35 6.04 6.34
1411 NASDAQ OPK Fri, Jan 18, 2013 6.02 6.15 5.98 6.05
1410 NASDAQ OPK Thu, Jan 17, 2013 6.08 6.19 5.93 6.00
1409 NASDAQ OPK Wed, Jan 16, 2013 5.76 6.12 5.70 6.00
1408 NASDAQ OPK Tue, Jan 15, 2013 5.68 5.78 5.51 5.71
1407 NASDAQ OPK Mon, Jan 14, 2013 5.32 5.78 5.30 5.71
1406 NASDAQ OPK Fri, Jan 11, 2013 5.29 5.40 5.22 5.38
1405 NASDAQ OPK Thu, Jan 10, 2013 5.24 5.35 5.18 5.31
1404 NASDAQ OPK Wed, Jan 9, 2013 5.36 5.42 5.08 5.18
1403 NASDAQ OPK Tue, Jan 8, 2013 5.31 5.42 5.27 5.30
1402 NASDAQ OPK Mon, Jan 7, 2013 5.16 5.32 5.15 5.31
1401 NASDAQ OPK Fri, Jan 4, 2013 5.04 5.24 5.02 5.16
1400 NASDAQ OPK Thu, Jan 3, 2013 5.01 5.07 4.93 5.00
1399 NASDAQ OPK Wed, Jan 2, 2013 4.86 5.01 4.83 5.00
1398 NASDAQ OPK Mon, Dec 31, 2012 4.75 4.81 4.65 4.81
1397 NASDAQ OPK Fri, Dec 28, 2012 4.73 4.78 4.72 4.73
1396 NASDAQ OPK Thu, Dec 27, 2012 4.71 4.75 4.64 4.74
1395 NASDAQ OPK Wed, Dec 26, 2012 4.64 4.75 4.60 4.68
1394 NASDAQ OPK Mon, Dec 24, 2012 4.65 4.67 4.59 4.64
1393 NASDAQ OPK Fri, Dec 21, 2012 4.68 4.74 4.58 4.67
1392 NASDAQ OPK Thu, Dec 20, 2012 4.79 4.79 4.69 4.71
1391 NASDAQ OPK Wed, Dec 19, 2012 4.71 4.84 4.68 4.76
1390 NASDAQ OPK Tue, Dec 18, 2012 4.64 4.71 4.63 4.71
1389 NASDAQ OPK Mon, Dec 17, 2012 4.60 4.65 4.55 4.65
1388 NASDAQ OPK Fri, Dec 14, 2012 4.56 4.63 4.52 4.62
1387 NASDAQ OPK Thu, Dec 13, 2012 4.53 4.61 4.48 4.58
1386 NASDAQ OPK Wed, Dec 12, 2012 4.52 4.55 4.50 4.54
1385 NASDAQ OPK Tue, Dec 11, 2012 4.44 4.52 4.44 4.50
1384 NASDAQ OPK Mon, Dec 10, 2012 4.37 4.45 4.35 4.45
1383 NASDAQ OPK Fri, Dec 7, 2012 4.37 4.39 4.32 4.38
1382 NASDAQ OPK Thu, Dec 6, 2012 4.38 4.39 4.32 4.35
1381 NASDAQ OPK Wed, Dec 5, 2012 4.40 4.41 4.35 4.39
1380 NASDAQ OPK Tue, Dec 4, 2012 4.42 4.43 4.35 4.40
1379 NASDAQ OPK Mon, Dec 3, 2012 4.40 4.45 4.35 4.41
1378 NASDAQ OPK Fri, Nov 30, 2012 4.45 4.49 4.38 4.38
1377 NASDAQ OPK Thu, Nov 29, 2012 4.46 4.51 4.41 4.47
1376 NASDAQ OPK Wed, Nov 28, 2012 4.46 4.46 4.36 4.43
1375 NASDAQ OPK Tue, Nov 27, 2012 4.44 4.47 4.41 4.47
1374 NASDAQ OPK Mon, Nov 26, 2012 4.47 4.47 4.37 4.44
1373 NASDAQ OPK Fri, Nov 23, 2012 4.43 4.49 4.43 4.49
1372 NASDAQ OPK Wed, Nov 21, 2012 4.49 4.49 4.41 4.45
1371 NASDAQ OPK Tue, Nov 20, 2012 4.45 4.49 4.39 4.48
1370 NASDAQ OPK Mon, Nov 19, 2012 4.42 4.49 4.37 4.44
1369 NASDAQ OPK Fri, Nov 16, 2012 4.43 4.45 4.34 4.38
1368 NASDAQ OPK Thu, Nov 15, 2012 4.36 4.46 4.34 4.43
1367 NASDAQ OPK Wed, Nov 14, 2012 4.51 4.53 4.34 4.36
1366 NASDAQ OPK Tue, Nov 13, 2012 4.43 4.53 4.40 4.51
1365 NASDAQ OPK Mon, Nov 12, 2012 4.51 4.59 4.37 4.44
1364 NASDAQ OPK Fri, Nov 9, 2012 4.50 4.62 4.46 4.50
1363 NASDAQ OPK Thu, Nov 8, 2012 4.60 4.74 4.40 4.49
1362 NASDAQ OPK Wed, Nov 7, 2012 4.24 4.40 4.22 4.38
1361 NASDAQ OPK Tue, Nov 6, 2012 4.29 4.30 4.20 4.26
1360 NASDAQ OPK Mon, Nov 5, 2012 4.25 4.29 4.20 4.23
1359 NASDAQ OPK Fri, Nov 2, 2012 4.32 4.34 4.22 4.26
1358 NASDAQ OPK Thu, Nov 1, 2012 4.30 4.33 4.24 4.32
1357 NASDAQ OPK Wed, Oct 31, 2012 4.32 4.35 4.21 4.28
1356 NASDAQ OPK Fri, Oct 26, 2012 4.42 4.46 4.30 4.34
1355 NASDAQ OPK Thu, Oct 25, 2012 4.49 4.54 4.40 4.43
1354 NASDAQ OPK Wed, Oct 24, 2012 4.51 4.57 4.46 4.48
1353 NASDAQ OPK Tue, Oct 23, 2012 4.44 4.50 4.40 4.49
1352 NASDAQ OPK Mon, Oct 22, 2012 4.47 4.53 4.38 4.47
1351 NASDAQ OPK Fri, Oct 19, 2012 4.71 4.72 4.39 4.42
1350 NASDAQ OPK Thu, Oct 18, 2012 4.55 4.78 4.48 4.69
1349 NASDAQ OPK Wed, Oct 17, 2012 4.37 4.56 4.36 4.55
1348 NASDAQ OPK Tue, Oct 16, 2012 4.35 4.40 4.32 4.38
1347 NASDAQ OPK Mon, Oct 15, 2012 4.36 4.40 4.32 4.34
1346 NASDAQ OPK Fri, Oct 12, 2012 4.29 4.36 4.26 4.36
1345 NASDAQ OPK Thu, Oct 11, 2012 4.31 4.38 4.22 4.25
1344 NASDAQ OPK Wed, Oct 10, 2012 4.33 4.36 4.27 4.29
1343 NASDAQ OPK Tue, Oct 9, 2012 4.35 4.43 4.29 4.31
1342 NASDAQ OPK Mon, Oct 8, 2012 4.50 4.50 4.38 4.38
1341 NASDAQ OPK Fri, Oct 5, 2012 4.47 4.54 4.45 4.50
1340 NASDAQ OPK Thu, Oct 4, 2012 4.43 4.47 4.34 4.44
1339 NASDAQ OPK Wed, Oct 3, 2012 4.18 4.45 4.18 4.39
1338 NASDAQ OPK Tue, Oct 2, 2012 4.17 4.22 4.13 4.18
1337 NASDAQ OPK Mon, Oct 1, 2012 4.18 4.25 4.10 4.16
1336 NASDAQ OPK Fri, Sep 28, 2012 4.16 4.23 4.15 4.18
1335 NASDAQ OPK Thu, Sep 27, 2012 4.15 4.23 4.11 4.18
1334 NASDAQ OPK Wed, Sep 26, 2012 4.15 4.18 4.05 4.14
1333 NASDAQ OPK Tue, Sep 25, 2012 4.12 4.24 4.12 4.13
1332 NASDAQ OPK Mon, Sep 24, 2012 4.24 4.26 4.09 4.11
1331 NASDAQ OPK Fri, Sep 21, 2012 4.29 4.32 4.16 4.28
1330 NASDAQ OPK Thu, Sep 20, 2012 4.39 4.40 4.24 4.28
1329 NASDAQ OPK Wed, Sep 19, 2012 4.44 4.45 4.38 4.40
1328 NASDAQ OPK Tue, Sep 18, 2012 4.41 4.45 4.40 4.44
1327 NASDAQ OPK Mon, Sep 17, 2012 4.44 4.45 4.37 4.43
1326 NASDAQ OPK Fri, Sep 14, 2012 4.45 4.59 4.40 4.45
1325 NASDAQ OPK Thu, Sep 13, 2012 4.37 4.46 4.28 4.45
1324 NASDAQ OPK Wed, Sep 12, 2012 4.41 4.43 4.35 4.37
1323 NASDAQ OPK Tue, Sep 11, 2012 4.37 4.44 4.32 4.40
1322 NASDAQ OPK Mon, Sep 10, 2012 4.51 4.52 4.35 4.38
1321 NASDAQ OPK Fri, Sep 7, 2012 4.50 4.52 4.44 4.50
1320 NASDAQ OPK Thu, Sep 6, 2012 4.51 4.53 4.48 4.50
1319 NASDAQ OPK Wed, Sep 5, 2012 4.49 4.52 4.47 4.47
1318 NASDAQ OPK Tue, Sep 4, 2012 4.50 4.52 4.46 4.50
1317 NASDAQ OPK Fri, Aug 31, 2012 4.47 4.50 4.41 4.44
1316 NASDAQ OPK Thu, Aug 30, 2012 4.46 4.50 4.41 4.44
1315 NASDAQ OPK Wed, Aug 29, 2012 4.44 4.56 4.43 4.45
1314 NASDAQ OPK Tue, Aug 28, 2012 4.51 4.51 4.42 4.44
1313 NASDAQ OPK Mon, Aug 27, 2012 4.54 4.56 4.45 4.50
1312 NASDAQ OPK Fri, Aug 24, 2012 4.52 4.53 4.43 4.52
1311 NASDAQ OPK Thu, Aug 23, 2012 4.40 4.54 4.36 4.52
1310 NASDAQ OPK Wed, Aug 22, 2012 4.27 4.45 4.27 4.37
1309 NASDAQ OPK Tue, Aug 21, 2012 4.36 4.40 4.26 4.30
1308 NASDAQ OPK Mon, Aug 20, 2012 4.32 4.37 4.25 4.36
1307 NASDAQ OPK Fri, Aug 17, 2012 4.27 4.35 4.23 4.31
1306 NASDAQ OPK Thu, Aug 16, 2012 4.22 4.31 4.15 4.29
1305 NASDAQ OPK Wed, Aug 15, 2012 4.18 4.21 4.15 4.21
1304 NASDAQ OPK Tue, Aug 14, 2012 4.25 4.27 4.16 4.17
1303 NASDAQ OPK Mon, Aug 13, 2012 4.25 4.26 4.19 4.24
1302 NASDAQ OPK Fri, Aug 10, 2012 4.25 4.29 4.20 4.25
1301 NASDAQ OPK Thu, Aug 9, 2012 4.22 4.29 4.20 4.25
1300 NASDAQ OPK Wed, Aug 8, 2012 4.26 4.31 4.21 4.26
1299 NASDAQ OPK Tue, Aug 7, 2012 4.29 4.34 4.24 4.27
1298 NASDAQ OPK Mon, Aug 6, 2012 4.28 4.32 4.26 4.27
1297 NASDAQ OPK Fri, Aug 3, 2012 4.15 4.29 4.13 4.29
1296 NASDAQ OPK Thu, Aug 2, 2012 4.00 4.16 4.00 4.12
1295 NASDAQ OPK Wed, Aug 1, 2012 4.24 4.26 4.06 4.09
1294 NASDAQ OPK Tue, Jul 31, 2012 4.26 4.31 4.22 4.24
1293 NASDAQ OPK Mon, Jul 30, 2012 4.40 4.44 4.26 4.29
1292 NASDAQ OPK Fri, Jul 27, 2012 4.31 4.41 4.22 4.41
1291 NASDAQ OPK Thu, Jul 26, 2012 4.44 4.47 4.25 4.32
1290 NASDAQ OPK Wed, Jul 25, 2012 4.43 4.46 4.35 4.40
1289 NASDAQ OPK Tue, Jul 24, 2012 4.45 4.52 4.40 4.40
1288 NASDAQ OPK Mon, Jul 23, 2012 4.46 4.53 4.43 4.47
1287 NASDAQ OPK Fri, Jul 20, 2012 4.60 4.60 4.47 4.50
1286 NASDAQ OPK Thu, Jul 19, 2012 4.68 4.68 4.55 4.61
1285 NASDAQ OPK Wed, Jul 18, 2012 4.55 4.68 4.55 4.62
1284 NASDAQ OPK Tue, Jul 17, 2012 4.61 4.64 4.54 4.58
1283 NASDAQ OPK Mon, Jul 16, 2012 4.63 4.65 4.60 4.60
1282 NASDAQ OPK Fri, Jul 13, 2012 4.63 4.64 4.59 4.62
1281 NASDAQ OPK Thu, Jul 12, 2012 4.60 4.64 4.53 4.62
1280 NASDAQ OPK Wed, Jul 11, 2012 4.62 4.64 4.47 4.61
1279 NASDAQ OPK Tue, Jul 10, 2012 4.64 4.69 4.59 4.62
1278 NASDAQ OPK Mon, Jul 9, 2012 4.65 4.72 4.60 4.64
1277 NASDAQ OPK Fri, Jul 6, 2012 4.72 4.75 4.65 4.67
1276 NASDAQ OPK Thu, Jul 5, 2012 4.80 4.80 4.70 4.77
1275 NASDAQ OPK Tue, Jul 3, 2012 4.72 4.80 4.59 4.80
1274 NASDAQ OPK Mon, Jul 2, 2012 4.58 4.71 4.58 4.71
1273 NASDAQ OPK Fri, Jun 29, 2012 4.66 4.66 4.56 4.60
1272 NASDAQ OPK Thu, Jun 28, 2012 4.61 4.64 4.47 4.61
1271 NASDAQ OPK Wed, Jun 27, 2012 4.61 4.64 4.57 4.64
1270 NASDAQ OPK Tue, Jun 26, 2012 4.60 4.63 4.57 4.60
1269 NASDAQ OPK Mon, Jun 25, 2012 4.59 4.64 4.57 4.59
1268 NASDAQ OPK Fri, Jun 22, 2012 4.61 4.62 4.52 4.59
1267 NASDAQ OPK Thu, Jun 21, 2012 4.54 4.59 4.51 4.57
1266 NASDAQ OPK Wed, Jun 20, 2012 4.41 4.54 4.41 4.53
1265 NASDAQ OPK Tue, Jun 19, 2012 4.48 4.54 4.38 4.41
1264 NASDAQ OPK Mon, Jun 18, 2012 4.50 4.58 4.45 4.45
1263 NASDAQ OPK Fri, Jun 15, 2012 4.70 4.70 4.54 4.57
1262 NASDAQ OPK Thu, Jun 14, 2012 4.75 4.78 4.62 4.72
1261 NASDAQ OPK Wed, Jun 13, 2012 4.78 4.85 4.71 4.77
1260 NASDAQ OPK Tue, Jun 12, 2012 4.74 4.80 4.71 4.80
1259 NASDAQ OPK Mon, Jun 11, 2012 4.80 4.81 4.73 4.75
1258 NASDAQ OPK Fri, Jun 8, 2012 4.61 4.78 4.55 4.78
1257 NASDAQ OPK Thu, Jun 7, 2012 4.64 4.65 4.54 4.64
1256 NASDAQ OPK Wed, Jun 6, 2012 4.61 4.63 4.60 4.61
1255 NASDAQ OPK Tue, Jun 5, 2012 4.51 4.60 4.46 4.60
1254 NASDAQ OPK Mon, Jun 4, 2012 4.50 4.62 4.45 4.54
1253 NASDAQ OPK Fri, Jun 1, 2012 4.55 4.61 4.45 4.49
1252 NASDAQ OPK Thu, May 31, 2012 4.60 4.69 4.54 4.60
1251 NASDAQ OPK Wed, May 30, 2012 4.75 4.75 4.58 4.58
1250 NASDAQ OPK Tue, May 29, 2012 4.72 4.85 4.66 4.80
1249 NASDAQ OPK Fri, May 25, 2012 4.80 4.81 4.71 4.78
1248 NASDAQ OPK Thu, May 24, 2012 4.67 4.80 4.64 4.80
1247 NASDAQ OPK Wed, May 23, 2012 4.60 4.65 4.55 4.65
1246 NASDAQ OPK Tue, May 22, 2012 4.56 4.65 4.55 4.62
1245 NASDAQ OPK Mon, May 21, 2012 4.50 4.60 4.40 4.55
1244 NASDAQ OPK Fri, May 18, 2012 4.56 4.56 4.44 4.49
1243 NASDAQ OPK Thu, May 17, 2012 4.57 4.58 4.45 4.52
1242 NASDAQ OPK Wed, May 16, 2012 4.62 4.65 4.55 4.58
1241 NASDAQ OPK Tue, May 15, 2012 4.58 4.65 4.53 4.62
1240 NASDAQ OPK Mon, May 14, 2012 4.60 4.60 4.50 4.59
1239 NASDAQ OPK Fri, May 11, 2012 4.38 4.56 4.38 4.55
1238 NASDAQ OPK Thu, May 10, 2012 4.53 4.54 4.46 4.47
1237 NASDAQ OPK Wed, May 9, 2012 4.40 4.55 4.40 4.49
1236 NASDAQ OPK Tue, May 8, 2012 4.49 4.55 4.39 4.42
1235 NASDAQ OPK Mon, May 7, 2012 4.50 4.56 4.45 4.51
1234 NASDAQ OPK Fri, May 4, 2012 4.51 4.55 4.44 4.47
1233 NASDAQ OPK Thu, May 3, 2012 4.64 4.69 4.52 4.54
1232 NASDAQ OPK Wed, May 2, 2012 4.62 4.71 4.60 4.65
1231 NASDAQ OPK Tue, May 1, 2012 4.74 4.77 4.65 4.65
1230 NASDAQ OPK Mon, Apr 30, 2012 4.80 4.85 4.74 4.75
1229 NASDAQ OPK Fri, Apr 27, 2012 4.89 4.89 4.77 4.82
1228 NASDAQ OPK Thu, Apr 26, 2012 4.87 4.88 4.77 4.83
1227 NASDAQ OPK Wed, Apr 25, 2012 4.89 4.92 4.82 4.88
1226 NASDAQ OPK Tue, Apr 24, 2012 4.88 4.99 4.81 4.84
1225 NASDAQ OPK Mon, Apr 23, 2012 4.92 4.98 4.80 4.89
1224 NASDAQ OPK Fri, Apr 20, 2012 4.93 5.05 4.81 4.99
1223 NASDAQ OPK Thu, Apr 19, 2012 4.72 4.90 4.64 4.89
1222 NASDAQ OPK Wed, Apr 18, 2012 4.67 4.77 4.55 4.74
1221 NASDAQ OPK Tue, Apr 17, 2012 4.50 4.70 4.47 4.68
1220 NASDAQ OPK Mon, Apr 16, 2012 4.37 4.51 4.22 4.48
1219 NASDAQ OPK Fri, Apr 13, 2012 4.48 4.49 4.34 4.38
1218 NASDAQ OPK Thu, Apr 12, 2012 4.52 4.59 4.41 4.48
1217 NASDAQ OPK Wed, Apr 11, 2012 4.53 4.57 4.45 4.57
1216 NASDAQ OPK Tue, Apr 10, 2012 4.63 4.66 4.39 4.45
1215 NASDAQ OPK Mon, Apr 9, 2012 4.69 4.79 4.61 4.61
1214 NASDAQ OPK Thu, Apr 5, 2012 4.74 4.82 4.68 4.75
1213 NASDAQ OPK Wed, Apr 4, 2012 4.79 4.81 4.69 4.70
1212 NASDAQ OPK Tue, Apr 3, 2012 4.94 4.95 4.75 4.81
1211 NASDAQ OPK Mon, Apr 2, 2012 4.74 4.86 4.65 4.86
1210 NASDAQ OPK Fri, Mar 30, 2012 4.76 4.76 4.70 4.73
1209 NASDAQ OPK Thu, Mar 29, 2012 4.77 4.77 4.63 4.69
1208 NASDAQ OPK Wed, Mar 28, 2012 4.80 4.87 4.73 4.73
1207 NASDAQ OPK Tue, Mar 27, 2012 4.84 4.89 4.79 4.80
1206 NASDAQ OPK Mon, Mar 26, 2012 4.90 4.94 4.81 4.82
1205 NASDAQ OPK Fri, Mar 23, 2012 4.84 4.93 4.80 4.87
1204 NASDAQ OPK Thu, Mar 22, 2012 4.87 4.89 4.79 4.82
1203 NASDAQ OPK Wed, Mar 21, 2012 4.85 4.95 4.81 4.85
1202 NASDAQ OPK Tue, Mar 20, 2012 4.90 4.92 4.80 4.85
1201 NASDAQ OPK Mon, Mar 19, 2012 4.91 5.03 4.83 4.91
1200 NASDAQ OPK Fri, Mar 16, 2012 4.98 5.08 4.76 4.93
1199 NASDAQ OPK Thu, Mar 15, 2012 5.05 5.07 4.96 4.99
1198 NASDAQ OPK Wed, Mar 14, 2012 4.89 5.07 4.89 5.06
1197 NASDAQ OPK Tue, Mar 13, 2012 4.90 5.00 4.85 5.00
1196 NASDAQ OPK Mon, Mar 12, 2012 4.93 4.95 4.77 4.87
1195 NASDAQ OPK Fri, Mar 9, 2012 4.85 4.93 4.78 4.93
1194 NASDAQ OPK Thu, Mar 8, 2012 4.81 4.84 4.74 4.83
1193 NASDAQ OPK Wed, Mar 7, 2012 4.75 4.80 4.72 4.80
1192 NASDAQ OPK Tue, Mar 6, 2012 4.80 4.80 4.71 4.73
1191 NASDAQ OPK Mon, Mar 5, 2012 4.83 4.86 4.78 4.80
1190 NASDAQ OPK Fri, Mar 2, 2012 4.86 4.86 4.81 4.83
1189 NASDAQ OPK Thu, Mar 1, 2012 4.98 5.00 4.81 4.85
1188 NASDAQ OPK Wed, Feb 29, 2012 5.04 5.04 4.90 4.94
1187 NASDAQ OPK Tue, Feb 28, 2012 4.98 5.00 4.92 5.00
1186 NASDAQ OPK Mon, Feb 27, 2012 4.84 4.95 4.80 4.95
1185 NASDAQ OPK Fri, Feb 24, 2012 4.92 4.94 4.74 4.79
1184 NASDAQ OPK Thu, Feb 23, 2012 4.83 4.96 4.77 4.90
1183 NASDAQ OPK Wed, Feb 22, 2012 4.81 4.84 4.68 4.71
1182 NASDAQ OPK Tue, Feb 21, 2012 5.03 5.05 4.83 4.83
1181 NASDAQ OPK Fri, Feb 17, 2012 5.12 5.12 5.00 5.03
1180 NASDAQ OPK Thu, Feb 16, 2012 5.13 5.22 5.08 5.11
1179 NASDAQ OPK Wed, Feb 15, 2012 5.21 5.24 5.07 5.14
1178 NASDAQ OPK Tue, Feb 14, 2012 5.10 5.21 5.08 5.21
1177 NASDAQ OPK Mon, Feb 13, 2012 5.17 5.25 5.08 5.12
1176 NASDAQ OPK Fri, Feb 10, 2012 5.17 5.19 5.05 5.14
1175 NASDAQ OPK Thu, Feb 9, 2012 5.27 5.27 5.16 5.17
1174 NASDAQ OPK Wed, Feb 8, 2012 5.30 5.31 5.20 5.23
1173 NASDAQ OPK Tue, Feb 7, 2012 5.25 5.30 5.21 5.28
1172 NASDAQ OPK Mon, Feb 6, 2012 5.27 5.30 5.22 5.23
1171 NASDAQ OPK Fri, Feb 3, 2012 5.26 5.35 5.20 5.28
1170 NASDAQ OPK Thu, Feb 2, 2012 5.26 5.29 5.20 5.22
1169 NASDAQ OPK Wed, Feb 1, 2012 5.29 5.32 5.19 5.21
1168 NASDAQ OPK Tue, Jan 31, 2012 5.21 5.29 5.20 5.26
1167 NASDAQ OPK Mon, Jan 30, 2012 5.26 5.35 5.19 5.20
1166 NASDAQ OPK Fri, Jan 27, 2012 5.21 5.30 5.20 5.27
1165 NASDAQ OPK Thu, Jan 26, 2012 5.33 5.35 5.18 5.24
1164 NASDAQ OPK Wed, Jan 25, 2012 5.10 5.30 5.07 5.27
1163 NASDAQ OPK Tue, Jan 24, 2012 5.15 5.19 5.05 5.08
1162 NASDAQ OPK Mon, Jan 23, 2012 5.31 5.31 5.16 5.19
1161 NASDAQ OPK Fri, Jan 20, 2012 5.35 5.39 5.22 5.27
1160 NASDAQ OPK Thu, Jan 19, 2012 5.50 5.53 5.35 5.35
1159 NASDAQ OPK Wed, Jan 18, 2012 5.32 5.53 5.32 5.48
1158 NASDAQ OPK Tue, Jan 17, 2012 5.10 5.30 5.03 5.27
1157 NASDAQ OPK Fri, Jan 13, 2012 4.98 5.10 4.95 5.05
1156 NASDAQ OPK Thu, Jan 12, 2012 4.99 5.03 4.93 5.03
1155 NASDAQ OPK Wed, Jan 11, 2012 4.90 5.02 4.83 4.99
1154 NASDAQ OPK Tue, Jan 10, 2012 4.99 5.05 4.88 4.90
1153 NASDAQ OPK Mon, Jan 9, 2012 4.93 4.98 4.90 4.95
1152 NASDAQ OPK Fri, Jan 6, 2012 4.89 4.97 4.86 4.90
1151 NASDAQ OPK Thu, Jan 5, 2012 4.77 4.95 4.72 4.92
1150 NASDAQ OPK Wed, Jan 4, 2012 4.88 4.91 4.75 4.77
1149 NASDAQ OPK Tue, Jan 3, 2012 4.92 4.99 4.84 4.88
1148 NASDAQ OPK Fri, Dec 30, 2011 4.79 4.90 4.76 4.90
1147 NASDAQ OPK Thu, Dec 29, 2011 4.84 4.88 4.75 4.80
1146 NASDAQ OPK Wed, Dec 28, 2011 4.86 4.89 4.80 4.80
1145 NASDAQ OPK Tue, Dec 27, 2011 4.78 4.87 4.74 4.85
1144 NASDAQ OPK Fri, Dec 23, 2011 4.79 4.83 4.76 4.79
1143 NASDAQ OPK Thu, Dec 22, 2011 4.87 4.87 4.73 4.77
1142 NASDAQ OPK Wed, Dec 21, 2011 4.79 4.89 4.76 4.84
1141 NASDAQ OPK Tue, Dec 20, 2011 4.83 4.84 4.74 4.83
1140 NASDAQ OPK Mon, Dec 19, 2011 4.95 4.95 4.75 4.75
1139 NASDAQ OPK Fri, Dec 16, 2011 4.93 4.96 4.78 4.90
1138 NASDAQ OPK Thu, Dec 15, 2011 4.77 4.88 4.75 4.87
1137 NASDAQ OPK Wed, Dec 14, 2011 4.76 4.83 4.66 4.72
1136 NASDAQ OPK Tue, Dec 13, 2011 4.92 4.95 4.78 4.79
1135 NASDAQ OPK Mon, Dec 12, 2011 4.89 4.90 4.77 4.89
1134 NASDAQ OPK Fri, Dec 9, 2011 4.81 4.88 4.78 4.82
1133 NASDAQ OPK Thu, Dec 8, 2011 4.85 4.97 4.75 4.78
1132 NASDAQ OPK Wed, Dec 7, 2011 4.95 4.97 4.85 4.87
1131 NASDAQ OPK Tue, Dec 6, 2011 5.00 5.08 4.92 4.99
1130 NASDAQ OPK Mon, Dec 5, 2011 5.17 5.17 4.95 5.00
1129 NASDAQ OPK Fri, Dec 2, 2011 5.17 5.18 5.02 5.10
1128 NASDAQ OPK Thu, Dec 1, 2011 5.06 5.15 5.00 5.10
1127 NASDAQ OPK Wed, Nov 30, 2011 4.94 4.96 4.81 4.96
1126 NASDAQ OPK Tue, Nov 29, 2011 4.95 5.00 4.70 4.77
1125 NASDAQ OPK Mon, Nov 28, 2011 4.93 5.06 4.91 5.00
1124 NASDAQ OPK Fri, Nov 25, 2011 4.85 4.99 4.81 4.82
1123 NASDAQ OPK Wed, Nov 23, 2011 4.92 4.96 4.82 4.88
1122 NASDAQ OPK Tue, Nov 22, 2011 4.99 5.04 4.92 4.99
1121 NASDAQ OPK Mon, Nov 21, 2011 5.00 5.10 4.90 4.98
1120 NASDAQ OPK Fri, Nov 18, 2011 5.17 5.18 5.01 5.04
1119 NASDAQ OPK Thu, Nov 17, 2011 5.38 5.40 5.10 5.14
1118 NASDAQ OPK Wed, Nov 16, 2011 5.65 5.66 5.28 5.32
1117 NASDAQ OPK Tue, Nov 15, 2011 5.58 5.75 5.47 5.66
1116 NASDAQ OPK Mon, Nov 14, 2011 5.43 5.85 5.33 5.62
1115 NASDAQ OPK Fri, Nov 11, 2011 5.29 5.40 5.21 5.37
1114 NASDAQ OPK Thu, Nov 10, 2011 5.24 5.29 5.06 5.11
1113 NASDAQ OPK Wed, Nov 9, 2011 5.12 5.24 5.12 5.16
1112 NASDAQ OPK Tue, Nov 8, 2011 5.22 5.24 5.10 5.23
1111 NASDAQ OPK Mon, Nov 7, 2011 5.18 5.25 5.06 5.20
1110 NASDAQ OPK Fri, Nov 4, 2011 5.16 5.20 5.09 5.18
1109 NASDAQ OPK Thu, Nov 3, 2011 5.34 5.34 5.16 5.20
1108 NASDAQ OPK Wed, Nov 2, 2011 5.20 5.28 5.14 5.28
1107 NASDAQ OPK Tue, Nov 1, 2011 5.25 5.31 5.08 5.16
1106 NASDAQ OPK Mon, Oct 31, 2011 5.43 5.45 5.32 5.38
1105 NASDAQ OPK Fri, Oct 28, 2011 5.38 5.55 5.35 5.50
1104 NASDAQ OPK Thu, Oct 27, 2011 5.37 5.43 5.22 5.38
1103 NASDAQ OPK Wed, Oct 26, 2011 5.23 5.26 5.06 5.23
1102 NASDAQ OPK Tue, Oct 25, 2011 5.36 5.37 5.16 5.16
1101 NASDAQ OPK Mon, Oct 24, 2011 5.40 5.41 5.16 5.39
1100 NASDAQ OPK Fri, Oct 21, 2011 5.27 5.40 5.25 5.40
1099 NASDAQ OPK Thu, Oct 20, 2011 5.20 5.27 5.03 5.26
1098 NASDAQ OPK Wed, Oct 19, 2011 5.45 5.46 5.11 5.19
1097 NASDAQ OPK Tue, Oct 18, 2011 5.23 5.57 5.20 5.37
1096 NASDAQ OPK Mon, Oct 17, 2011 5.10 5.21 5.03 5.17
1095 NASDAQ OPK Fri, Oct 14, 2011 5.24 5.34 5.10 5.15
1094 NASDAQ OPK Thu, Oct 13, 2011 4.68 5.07 4.65 5.04
1093 NASDAQ OPK Wed, Oct 12, 2011 4.58 4.85 4.56 4.81
1092 NASDAQ OPK Tue, Oct 11, 2011 4.46 4.58 4.44 4.55
1091 NASDAQ OPK Mon, Oct 10, 2011 4.50 4.59 4.45 4.54
1090 NASDAQ OPK Fri, Oct 7, 2011 4.46 4.49 4.35 4.44
1089 NASDAQ OPK Thu, Oct 6, 2011 4.45 4.49 4.36 4.43
1088 NASDAQ OPK Wed, Oct 5, 2011 4.34 4.49 4.26 4.45
1087 NASDAQ OPK Tue, Oct 4, 2011 4.04 4.32 4.00 4.31
1086 NASDAQ OPK Mon, Oct 3, 2011 4.28 4.39 4.08 4.10
1085 NASDAQ OPK Fri, Sep 30, 2011 4.46 4.49 4.32 4.33
1084 NASDAQ OPK Thu, Sep 29, 2011 4.53 4.57 4.35 4.51
1083 NASDAQ OPK Wed, Sep 28, 2011 4.64 4.68 4.43 4.43
1082 NASDAQ OPK Tue, Sep 27, 2011 4.56 4.67 4.54 4.63
1081 NASDAQ OPK Mon, Sep 26, 2011 4.45 4.50 4.31 4.47
1080 NASDAQ OPK Fri, Sep 23, 2011 4.39 4.49 4.33 4.39
1079 NASDAQ OPK Thu, Sep 22, 2011 4.42 4.53 4.30 4.41
1078 NASDAQ OPK Wed, Sep 21, 2011 4.55 4.68 4.39 4.39
1077 NASDAQ OPK Tue, Sep 20, 2011 4.69 4.73 4.53 4.53
1076 NASDAQ OPK Mon, Sep 19, 2011 4.43 4.74 4.35 4.66
1075 NASDAQ OPK Fri, Sep 16, 2011 4.57 4.69 4.50 4.51
1074 NASDAQ OPK Thu, Sep 15, 2011 4.56 4.60 4.24 4.52
1073 NASDAQ OPK Wed, Sep 14, 2011 4.45 4.60 4.36 4.50
1072 NASDAQ OPK Tue, Sep 13, 2011 4.40 4.50 4.35 4.48
1071 NASDAQ OPK Mon, Sep 12, 2011 4.11 4.45 4.08 4.42
1070 NASDAQ OPK Fri, Sep 9, 2011 4.13 4.21 4.00 4.18
1069 NASDAQ OPK Thu, Sep 8, 2011 4.12 4.23 3.93 4.18
1068 NASDAQ OPK Wed, Sep 7, 2011 4.11 4.17 4.03 4.17
1067 NASDAQ OPK Tue, Sep 6, 2011 3.87 4.06 3.82 4.03
1066 NASDAQ OPK Fri, Sep 2, 2011 4.03 4.05 3.90 4.01
1065 NASDAQ OPK Thu, Sep 1, 2011 4.14 4.17 4.00 4.04
1064 NASDAQ OPK Wed, Aug 31, 2011 4.20 4.25 4.10 4.18
1063 NASDAQ OPK Tue, Aug 30, 2011 4.12 4.21 4.09 4.19
1062 NASDAQ OPK Mon, Aug 29, 2011 4.03 4.16 3.94 4.14
1061 NASDAQ OPK Fri, Aug 26, 2011 3.88 4.05 3.83 4.02
1060 NASDAQ OPK Thu, Aug 25, 2011 3.87 3.94 3.80 3.91
1059 NASDAQ OPK Wed, Aug 24, 2011 3.84 3.91 3.78 3.89
1058 NASDAQ OPK Tue, Aug 23, 2011 3.61 3.88 3.57 3.88
1057 NASDAQ OPK Mon, Aug 22, 2011 3.72 3.72 3.52 3.62
1056 NASDAQ OPK Fri, Aug 19, 2011 3.57 3.72 3.57 3.63
1055 NASDAQ OPK Thu, Aug 18, 2011 3.76 3.79 3.62 3.64
1054 NASDAQ OPK Wed, Aug 17, 2011 3.86 3.96 3.77 3.90
1053 NASDAQ OPK Tue, Aug 16, 2011 3.92 3.94 3.84 3.87
1052 NASDAQ OPK Mon, Aug 15, 2011 3.94 3.98 3.79 3.97
1051 NASDAQ OPK Fri, Aug 12, 2011 3.88 3.90 3.72 3.88
1050 NASDAQ OPK Thu, Aug 11, 2011 3.62 3.90 3.61 3.83
1049 NASDAQ OPK Wed, Aug 10, 2011 3.68 3.80 3.60 3.62
1048 NASDAQ OPK Tue, Aug 9, 2011 3.62 3.80 3.49 3.80
1047 NASDAQ OPK Mon, Aug 8, 2011 3.79 3.89 3.54 3.54
1046 NASDAQ OPK Fri, Aug 5, 2011 3.96 3.99 3.77 3.93
1045 NASDAQ OPK Thu, Aug 4, 2011 4.19 4.22 3.87 3.88
1044 NASDAQ OPK Wed, Aug 3, 2011 4.27 4.27 4.00 4.24
1043 NASDAQ OPK Tue, Aug 2, 2011 4.38 4.40 4.25 4.25
1042 NASDAQ OPK Mon, Aug 1, 2011 4.40 4.49 4.20 4.44
1041 NASDAQ OPK Fri, Jul 29, 2011 4.20 4.38 4.12 4.35
1040 NASDAQ OPK Thu, Jul 28, 2011 4.13 4.27 4.12 4.21
1039 NASDAQ OPK Wed, Jul 27, 2011 4.26 4.31 4.06 4.11
1038 NASDAQ OPK Tue, Jul 26, 2011 4.41 4.46 4.25 4.27
1037 NASDAQ OPK Mon, Jul 25, 2011 4.35 4.48 4.30 4.43
1036 NASDAQ OPK Fri, Jul 22, 2011 4.11 4.42 4.10 4.40
1035 NASDAQ OPK Thu, Jul 21, 2011 4.34 4.35 4.18 4.27
1034 NASDAQ OPK Wed, Jul 20, 2011 4.38 4.39 4.21 4.34
1033 NASDAQ OPK Tue, Jul 19, 2011 4.14 4.39 4.00 4.38
1032 NASDAQ OPK Mon, Jul 18, 2011 4.30 4.35 4.13 4.33
1031 NASDAQ OPK Fri, Jul 15, 2011 4.43 4.43 4.18 4.30
1030 NASDAQ OPK Thu, Jul 14, 2011 4.18 4.35 4.10 4.33
1029 NASDAQ OPK Wed, Jul 13, 2011 3.99 4.14 3.96 4.14
1028 NASDAQ OPK Tue, Jul 12, 2011 4.01 4.04 3.93 4.00
1027 NASDAQ OPK Mon, Jul 11, 2011 3.99 4.12 3.90 4.01
1026 NASDAQ OPK Fri, Jul 8, 2011 3.93 4.08 3.82 4.06
1025 NASDAQ OPK Thu, Jul 7, 2011 3.80 3.96 3.76 3.96
1024 NASDAQ OPK Wed, Jul 6, 2011 3.66 3.81 3.60 3.81
1023 NASDAQ OPK Tue, Jul 5, 2011 3.71 3.73 3.66 3.69
1022 NASDAQ OPK Fri, Jul 1, 2011 3.68 3.72 3.61 3.72
1021 NASDAQ OPK Thu, Jun 30, 2011 3.60 3.69 3.56 3.69
1020 NASDAQ OPK Wed, Jun 29, 2011 3.59 3.63 3.54 3.60
1019 NASDAQ OPK Tue, Jun 28, 2011 3.60 3.63 3.53 3.57
1018 NASDAQ OPK Mon, Jun 27, 2011 3.49 3.62 3.44 3.60
1017 NASDAQ OPK Fri, Jun 24, 2011 3.41 3.48 3.37 3.45
1016 NASDAQ OPK Thu, Jun 23, 2011 3.36 3.44 3.30 3.39
1015 NASDAQ OPK Wed, Jun 22, 2011 3.41 3.49 3.37 3.40
1014 NASDAQ OPK Tue, Jun 21, 2011 3.36 3.45 3.30 3.45
1013 NASDAQ OPK Mon, Jun 20, 2011 3.31 3.34 3.15 3.28
1012 NASDAQ OPK Fri, Jun 17, 2011 3.45 3.45 3.26 3.29
1011 NASDAQ OPK Thu, Jun 16, 2011 3.39 3.46 3.36 3.40
1010 NASDAQ OPK Wed, Jun 15, 2011 3.44 3.45 3.38 3.39
1009 NASDAQ OPK Tue, Jun 14, 2011 3.44 3.49 3.39 3.48
1008 NASDAQ OPK Mon, Jun 13, 2011 3.47 3.47 3.35 3.39
1007 NASDAQ OPK Fri, Jun 10, 2011 3.42 3.49 3.36 3.42
1006 NASDAQ OPK Thu, Jun 9, 2011 3.53 3.54 3.34 3.43
1005 NASDAQ OPK Wed, Jun 8, 2011 3.54 3.56 3.50 3.51
1004 NASDAQ OPK Tue, Jun 7, 2011 3.54 3.58 3.50 3.54
1003 NASDAQ OPK Mon, Jun 6, 2011 3.56 3.60 3.51 3.51
1002 NASDAQ OPK Fri, Jun 3, 2011 3.60 3.61 3.50 3.56
1001 NASDAQ OPK Thu, Jun 2, 2011 3.64 3.68 3.60 3.60
1000 NASDAQ OPK Wed, Jun 1, 2011 3.77 3.78 3.56 3.56
999 NASDAQ OPK Tue, May 31, 2011 3.77 3.79 3.66 3.76
998 NASDAQ OPK Fri, May 27, 2011 3.81 3.81 3.75 3.77
997 NASDAQ OPK Thu, May 26, 2011 3.76 3.80 3.71 3.80
996 NASDAQ OPK Wed, May 25, 2011 3.68 3.75 3.65 3.75
995 NASDAQ OPK Tue, May 24, 2011 3.75 3.77 3.70 3.70
994 NASDAQ OPK Mon, May 23, 2011 3.73 3.79 3.73 3.75
993 NASDAQ OPK Fri, May 20, 2011 3.80 3.82 3.75 3.75
992 NASDAQ OPK Thu, May 19, 2011 3.78 3.82 3.74 3.80
991 NASDAQ OPK Wed, May 18, 2011 3.69 3.78 3.66 3.75
990 NASDAQ OPK Tue, May 17, 2011 3.70 3.75 3.64 3.67
989 NASDAQ OPK Mon, May 16, 2011 3.72 3.76 3.65 3.65
988 NASDAQ OPK Fri, May 13, 2011 3.80 3.80 3.70 3.74
987 NASDAQ OPK Thu, May 12, 2011 3.78 3.83 3.71 3.80
986 NASDAQ OPK Wed, May 11, 2011 3.82 3.88 3.75 3.76
985 NASDAQ OPK Tue, May 10, 2011 3.83 3.86 3.77 3.85
984 NASDAQ OPK Mon, May 9, 2011 3.77 3.85 3.73 3.81
983 NASDAQ OPK Fri, May 6, 2011 3.75 3.80 3.72 3.75
982 NASDAQ OPK Thu, May 5, 2011 3.77 3.83 3.68 3.70
981 NASDAQ OPK Wed, May 4, 2011 3.84 3.90 3.76 3.76
980 NASDAQ OPK Tue, May 3, 2011 4.00 4.00 3.78 3.82
979 NASDAQ OPK Mon, May 2, 2011 3.98 4.12 3.90 3.91
978 NASDAQ OPK Fri, Apr 29, 2011 3.96 4.01 3.92 3.98
977 NASDAQ OPK Thu, Apr 28, 2011 4.01 4.02 3.91 3.96
976 NASDAQ OPK Wed, Apr 27, 2011 4.01 4.05 3.90 3.95
975 NASDAQ OPK Tue, Apr 26, 2011 3.81 4.04 3.80 4.00
974 NASDAQ OPK Mon, Apr 25, 2011 3.74 3.82 3.67 3.81
973 NASDAQ OPK Thu, Apr 21, 2011 3.85 3.85 3.71 3.75
972 NASDAQ OPK Wed, Apr 20, 2011 3.81 3.84 3.80 3.84
971 NASDAQ OPK Tue, Apr 19, 2011 3.84 3.85 3.73 3.81
970 NASDAQ OPK Mon, Apr 18, 2011 3.72 3.84 3.65 3.83
969 NASDAQ OPK Fri, Apr 15, 2011 3.68 3.75 3.65 3.74
968 NASDAQ OPK Thu, Apr 14, 2011 3.65 3.71 3.62 3.70
967 NASDAQ OPK Wed, Apr 13, 2011 3.69 3.74 3.62 3.65
966 NASDAQ OPK Tue, Apr 12, 2011 3.84 3.84 3.66 3.68
965 NASDAQ OPK Mon, Apr 11, 2011 3.76 3.76 3.67 3.70
964 NASDAQ OPK Fri, Apr 8, 2011 3.78 3.82 3.74 3.75
963 NASDAQ OPK Thu, Apr 7, 2011 3.79 3.83 3.74 3.80
962 NASDAQ OPK Wed, Apr 6, 2011 3.81 3.81 3.77 3.78
961 NASDAQ OPK Tue, Apr 5, 2011 3.79 3.84 3.76 3.78
960 NASDAQ OPK Mon, Apr 4, 2011 3.85 3.89 3.79 3.81
959 NASDAQ OPK Fri, Apr 1, 2011 3.79 3.80 3.70 3.76
958 NASDAQ OPK Thu, Mar 31, 2011 3.82 3.84 3.71 3.73
957 NASDAQ OPK Wed, Mar 30, 2011 3.84 3.84 3.76 3.82
956 NASDAQ OPK Tue, Mar 29, 2011 3.74 3.83 3.70 3.83
955 NASDAQ OPK Mon, Mar 28, 2011 3.86 3.87 3.70 3.75
954 NASDAQ OPK Fri, Mar 25, 2011 3.91 3.92 3.80 3.82
953 NASDAQ OPK Thu, Mar 24, 2011 3.86 3.91 3.81 3.89
952 NASDAQ OPK Wed, Mar 23, 2011 3.73 3.84 3.62 3.84
951 NASDAQ OPK Tue, Mar 22, 2011 3.70 3.75 3.58 3.73
950 NASDAQ OPK Mon, Mar 21, 2011 3.71 3.75 3.63 3.70
949 NASDAQ OPK Fri, Mar 18, 2011 3.72 3.72 3.60 3.67
948 NASDAQ OPK Thu, Mar 17, 2011 3.72 3.74 3.64 3.65
947 NASDAQ OPK Wed, Mar 16, 2011 3.67 3.79 3.60 3.64
946 NASDAQ OPK Tue, Mar 15, 2011 3.60 3.75 3.58 3.66
945 NASDAQ OPK Mon, Mar 14, 2011 3.70 3.80 3.60 3.79
944 NASDAQ OPK Fri, Mar 11, 2011 3.51 3.76 3.50 3.75
943 NASDAQ OPK Thu, Mar 10, 2011 3.57 3.65 3.44 3.53
942 NASDAQ OPK Wed, Mar 9, 2011 3.76 3.79 3.51 3.59
941 NASDAQ OPK Tue, Mar 8, 2011 3.70 3.95 3.59 3.84
940 NASDAQ OPK Mon, Mar 7, 2011 4.07 4.07 3.67 3.69
939 NASDAQ OPK Fri, Mar 4, 2011 4.23 4.26 3.91 3.97
938 NASDAQ OPK Thu, Mar 3, 2011 4.40 4.45 4.10 4.25
937 NASDAQ OPK Wed, Mar 2, 2011 4.74 4.76 4.58 4.60
936 NASDAQ OPK Tue, Mar 1, 2011 4.85 5.00 4.69 4.74
935 NASDAQ OPK Mon, Feb 28, 2011 4.63 4.90 4.58 4.83
934 NASDAQ OPK Fri, Feb 25, 2011 4.46 4.50 4.36 4.50
933 NASDAQ OPK Thu, Feb 24, 2011 4.40 4.47 4.32 4.44
932 NASDAQ OPK Wed, Feb 23, 2011 4.47 4.59 4.30 4.41
931 NASDAQ OPK Tue, Feb 22, 2011 4.57 4.67 4.30 4.42
930 NASDAQ OPK Fri, Feb 18, 2011 4.78 4.87 4.48 4.52
929 NASDAQ OPK Thu, Feb 17, 2011 4.79 4.91 4.66 4.74
928 NASDAQ OPK Wed, Feb 16, 2011 4.90 5.03 4.70 4.79
927 NASDAQ OPK Tue, Feb 15, 2011 4.52 4.95 4.40 4.89
926 NASDAQ OPK Mon, Feb 14, 2011 4.51 4.55 4.43 4.44
925 NASDAQ OPK Fri, Feb 11, 2011 4.44 4.54 4.10 4.54
924 NASDAQ OPK Thu, Feb 10, 2011 4.50 4.53 4.42 4.49
923 NASDAQ OPK Wed, Feb 9, 2011 4.23 4.52 4.21 4.51
922 NASDAQ OPK Tue, Feb 8, 2011 4.32 4.34 4.12 4.28
921 NASDAQ OPK Mon, Feb 7, 2011 4.01 4.40 3.94 4.24
920 NASDAQ OPK Fri, Feb 4, 2011 3.97 4.00 3.85 3.99
919 NASDAQ OPK Thu, Feb 3, 2011 3.96 3.98 3.80 3.98
918 NASDAQ OPK Wed, Feb 2, 2011 3.85 3.98 3.85 3.88
917 NASDAQ OPK Tue, Feb 1, 2011 3.93 3.98 3.90 3.92
916 NASDAQ OPK Mon, Jan 31, 2011 3.81 3.94 3.60 3.90
915 NASDAQ OPK Fri, Jan 28, 2011 4.18 4.18 3.85 3.85
914 NASDAQ OPK Thu, Jan 27, 2011 3.96 4.02 3.79 4.02
913 NASDAQ OPK Wed, Jan 26, 2011 3.86 4.15 3.80 3.95
912 NASDAQ OPK Tue, Jan 25, 2011 3.64 3.84 3.55 3.83
911 NASDAQ OPK Mon, Jan 24, 2011 3.55 3.74 3.46 3.65
910 NASDAQ OPK Fri, Jan 21, 2011 3.70 3.70 3.43 3.48
909 NASDAQ OPK Thu, Jan 20, 2011 3.56 3.70 3.56 3.64
908 NASDAQ OPK Wed, Jan 19, 2011 3.81 3.87 3.50 3.58
907 NASDAQ OPK Tue, Jan 18, 2011 4.15 4.15 3.81 3.85
906 NASDAQ OPK Fri, Jan 14, 2011 4.04 4.11 4.00 4.01
905 NASDAQ OPK Thu, Jan 13, 2011 4.08 4.08 4.01 4.03
904 NASDAQ OPK Wed, Jan 12, 2011 4.04 4.10 3.97 4.03
903 NASDAQ OPK Tue, Jan 11, 2011 4.15 4.16 3.99 4.01
902 NASDAQ OPK Mon, Jan 10, 2011 4.20 4.20 4.05 4.09
901 NASDAQ OPK Fri, Jan 7, 2011 3.99 4.10 3.90 3.98
900 NASDAQ OPK Thu, Jan 6, 2011 3.88 4.02 3.80 3.96
899 NASDAQ OPK Wed, Jan 5, 2011 3.86 3.90 3.83 3.87
898 NASDAQ OPK Tue, Jan 4, 2011 3.91 4.03 3.83 3.88
897 NASDAQ OPK Mon, Jan 3, 2011 3.69 3.96 3.65 3.93
896 NASDAQ OPK Fri, Dec 31, 2010 3.70 3.75 3.61 3.67
895 NASDAQ OPK Thu, Dec 30, 2010 3.74 3.82 3.70 3.71
894 NASDAQ OPK Wed, Dec 29, 2010 3.77 3.80 3.70 3.73
893 NASDAQ OPK Tue, Dec 28, 2010 3.79 3.80 3.63 3.68
892 NASDAQ OPK Mon, Dec 27, 2010 3.80 3.84 3.73 3.77
891 NASDAQ OPK Thu, Dec 23, 2010 3.85 3.90 3.70 3.78
890 NASDAQ OPK Wed, Dec 22, 2010 3.85 3.91 3.80 3.84
889 NASDAQ OPK Tue, Dec 21, 2010 3.90 3.99 3.80 3.85
888 NASDAQ OPK Mon, Dec 20, 2010 3.79 3.90 3.69 3.88
887 NASDAQ OPK Fri, Dec 17, 2010 3.73 3.83 3.62 3.81
886 NASDAQ OPK Thu, Dec 16, 2010 3.64 3.78 3.63 3.74
885 NASDAQ OPK Wed, Dec 15, 2010 3.71 3.84 3.65 3.70
884 NASDAQ OPK Tue, Dec 14, 2010 3.66 3.70 3.59 3.70
883 NASDAQ OPK Mon, Dec 13, 2010 3.60 3.67 3.48 3.58
882 NASDAQ OPK Fri, Dec 10, 2010 3.45 3.83 3.43 3.58
881 NASDAQ OPK Thu, Dec 9, 2010 3.38 3.49 3.30 3.46
880 NASDAQ OPK Wed, Dec 8, 2010 3.19 3.35 3.17 3.30
879 NASDAQ OPK Tue, Dec 7, 2010 3.14 3.22 3.06 3.17
878 NASDAQ OPK Mon, Dec 6, 2010 3.09 3.15 3.09 3.15
877 NASDAQ OPK Fri, Dec 3, 2010 3.09 3.12 3.04 3.11
876 NASDAQ OPK Thu, Dec 2, 2010 2.99 3.12 2.99 3.10
875 NASDAQ OPK Wed, Dec 1, 2010 3.06 3.14 3.00 3.12
874 NASDAQ OPK Tue, Nov 30, 2010 3.09 3.12 2.97 3.02
873 NASDAQ OPK Mon, Nov 29, 2010 3.16 3.18 3.07 3.14
872 NASDAQ OPK Fri, Nov 26, 2010 3.08 3.22 3.01 3.17
871 NASDAQ OPK Wed, Nov 24, 2010 2.99 3.14 2.96 3.11
870 NASDAQ OPK Tue, Nov 23, 2010 2.88 2.95 2.88 2.94
869 NASDAQ OPK Mon, Nov 22, 2010 2.87 2.95 2.86 2.92
868 NASDAQ OPK Fri, Nov 19, 2010 2.90 2.90 2.86 2.89
867 NASDAQ OPK Thu, Nov 18, 2010 2.88 2.95 2.86 2.91
866 NASDAQ OPK Wed, Nov 17, 2010 2.91 3.00 2.82 2.84
865 NASDAQ OPK Tue, Nov 16, 2010 2.89 2.99 2.80 2.91
864 NASDAQ OPK Mon, Nov 15, 2010 2.90 3.03 2.80 2.91
863 NASDAQ OPK Fri, Nov 12, 2010 2.95 3.02 2.86 2.87
862 NASDAQ OPK Thu, Nov 11, 2010 3.04 3.04 2.96 2.98
861 NASDAQ OPK Wed, Nov 10, 2010 3.00 3.05 2.97 3.04
860 NASDAQ OPK Tue, Nov 9, 2010 3.02 3.16 2.92 2.96
859 NASDAQ OPK Mon, Nov 8, 2010 3.00 3.08 2.89 3.02
858 NASDAQ OPK Fri, Nov 5, 2010 3.02 3.02 2.90 2.99
857 NASDAQ OPK Thu, Nov 4, 2010 2.86 3.13 2.86 3.03
856 NASDAQ OPK Wed, Nov 3, 2010 2.78 2.93 2.70 2.90
855 NASDAQ OPK Tue, Nov 2, 2010 2.75 2.78 2.70 2.78
854 NASDAQ OPK Mon, Nov 1, 2010 2.77 2.77 2.64 2.72
853 NASDAQ OPK Fri, Oct 29, 2010 2.73 2.78 2.73 2.76
852 NASDAQ OPK Thu, Oct 28, 2010 2.75 2.77 2.63 2.75
851 NASDAQ OPK Wed, Oct 27, 2010 2.77 2.80 2.69 2.74
850 NASDAQ OPK Tue, Oct 26, 2010 2.75 2.80 2.75 2.78
849 NASDAQ OPK Mon, Oct 25, 2010 2.75 2.84 2.74 2.77
848 NASDAQ OPK Fri, Oct 22, 2010 2.73 2.75 2.65 2.74
847 NASDAQ OPK Thu, Oct 21, 2010 2.73 2.75 2.60 2.73
846 NASDAQ OPK Wed, Oct 20, 2010 2.62 2.79 2.61 2.72
845 NASDAQ OPK Tue, Oct 19, 2010 2.54 2.85 2.54 2.61
844 NASDAQ OPK Mon, Oct 18, 2010 2.52 2.61 2.41 2.61
843 NASDAQ OPK Fri, Oct 15, 2010 2.53 2.57 2.50 2.52
842 NASDAQ OPK Thu, Oct 14, 2010 2.49 2.54 2.49 2.52
841 NASDAQ OPK Wed, Oct 13, 2010 2.45 2.64 2.43 2.51
840 NASDAQ OPK Tue, Oct 12, 2010 2.41 2.45 2.36 2.45
839 NASDAQ OPK Mon, Oct 11, 2010 2.44 2.48 2.42 2.44
838 NASDAQ OPK Fri, Oct 8, 2010 2.29 2.49 2.29 2.46
837 NASDAQ OPK Thu, Oct 7, 2010 2.34 2.36 2.28 2.31
836 NASDAQ OPK Wed, Oct 6, 2010 2.33 2.37 2.26 2.34
835 NASDAQ OPK Tue, Oct 5, 2010 2.23 2.38 2.21 2.34
834 NASDAQ OPK Mon, Oct 4, 2010 2.28 2.28 2.21 2.23
833 NASDAQ OPK Fri, Oct 1, 2010 2.27 2.29 2.18 2.29
832 NASDAQ OPK Thu, Sep 30, 2010 2.25 2.26 2.17 2.24
831 NASDAQ OPK Wed, Sep 29, 2010 2.22 2.25 2.13 2.23
830 NASDAQ OPK Tue, Sep 28, 2010 2.18 2.25 2.15 2.22
829 NASDAQ OPK Mon, Sep 27, 2010 2.27 2.27 2.15 2.17
828 NASDAQ OPK Fri, Sep 24, 2010 2.37 2.37 2.23 2.28
827 NASDAQ OPK Thu, Sep 23, 2010 2.29 2.40 2.29 2.34
826 NASDAQ OPK Wed, Sep 22, 2010 2.39 2.39 2.29 2.31
825 NASDAQ OPK Tue, Sep 21, 2010 2.43 2.45 2.38 2.41
824 NASDAQ OPK Mon, Sep 20, 2010 2.27 2.43 2.05 2.43
823 NASDAQ OPK Fri, Sep 17, 2010 2.30 2.31 2.20 2.28
822 NASDAQ OPK Thu, Sep 16, 2010 2.23 2.31 2.22 2.26
821 NASDAQ OPK Wed, Sep 15, 2010 2.06 2.26 2.05 2.25
820 NASDAQ OPK Tue, Sep 14, 2010 2.09 2.12 2.02 2.09
819 NASDAQ OPK Mon, Sep 13, 2010 2.11 2.15 2.07 2.08
818 NASDAQ OPK Fri, Sep 10, 2010 2.10 2.10 2.07 2.09
817 NASDAQ OPK Thu, Sep 9, 2010 2.12 2.14 2.06 2.10
816 NASDAQ OPK Wed, Sep 8, 2010 2.08 2.12 2.03 2.10
815 NASDAQ OPK Tue, Sep 7, 2010 2.11 2.13 2.05 2.08
814 NASDAQ OPK Fri, Sep 3, 2010 2.16 2.16 2.10 2.14
813 NASDAQ OPK Thu, Sep 2, 2010 2.15 2.15 2.10 2.14
812 NASDAQ OPK Wed, Sep 1, 2010 2.10 2.15 2.08 2.14
811 NASDAQ OPK Tue, Aug 31, 2010 2.10 2.13 2.05 2.07
810 NASDAQ OPK Mon, Aug 30, 2010 2.17 2.19 2.10 2.10
809 NASDAQ OPK Fri, Aug 27, 2010 2.17 2.19 2.13 2.19
808 NASDAQ OPK Thu, Aug 26, 2010 2.17 2.20 2.14 2.15
807 NASDAQ OPK Wed, Aug 25, 2010 2.14 2.17 2.10 2.15
806 NASDAQ OPK Tue, Aug 24, 2010 2.17 2.20 2.11 2.12
805 NASDAQ OPK Mon, Aug 23, 2010 2.22 2.27 2.19 2.20
804 NASDAQ OPK Fri, Aug 20, 2010 2.22 2.24 2.17 2.20
803 NASDAQ OPK Thu, Aug 19, 2010 2.24 2.34 2.20 2.24
802 NASDAQ OPK Wed, Aug 18, 2010 2.36 2.36 2.23 2.26
801 NASDAQ OPK Tue, Aug 17, 2010 2.47 2.47 2.30 2.37
800 NASDAQ OPK Mon, Aug 16, 2010 2.16 2.40 2.15 2.40
799 NASDAQ OPK Fri, Aug 13, 2010 2.25 2.25 2.14 2.17
798 NASDAQ OPK Thu, Aug 12, 2010 2.23 2.38 2.22 2.26
797 NASDAQ OPK Wed, Aug 11, 2010 2.51 2.58 2.25 2.28
796 NASDAQ OPK Tue, Aug 10, 2010 2.57 2.60 2.50 2.53
795 NASDAQ OPK Mon, Aug 9, 2010 2.60 2.60 2.55 2.60
794 NASDAQ OPK Fri, Aug 6, 2010 2.63 2.63 2.46 2.54
793 NASDAQ OPK Thu, Aug 5, 2010 2.60 2.69 2.59 2.59
792 NASDAQ OPK Wed, Aug 4, 2010 2.56 2.65 2.54 2.60
791 NASDAQ OPK Tue, Aug 3, 2010 2.44 2.60 2.44 2.56
790 NASDAQ OPK Mon, Aug 2, 2010 2.49 2.52 2.42 2.49
789 NASDAQ OPK Fri, Jul 30, 2010 2.38 2.50 2.38 2.49
788 NASDAQ OPK Thu, Jul 29, 2010 2.43 2.54 2.38 2.45
787 NASDAQ OPK Wed, Jul 28, 2010 2.48 2.55 2.37 2.47
786 NASDAQ OPK Tue, Jul 27, 2010 2.41 2.55 2.37 2.54
785 NASDAQ OPK Mon, Jul 26, 2010 2.36 2.45 2.35 2.44
784 NASDAQ OPK Fri, Jul 23, 2010 2.34 2.44 2.34 2.37
783 NASDAQ OPK Thu, Jul 22, 2010 2.34 2.45 2.32 2.39
782 NASDAQ OPK Wed, Jul 21, 2010 2.34 2.41 2.30 2.36
781 NASDAQ OPK Tue, Jul 20, 2010 2.29 2.38 2.27 2.34
780 NASDAQ OPK Mon, Jul 19, 2010 2.30 2.39 2.26 2.39
779 NASDAQ OPK Fri, Jul 16, 2010 2.41 2.41 2.32 2.32
778 NASDAQ OPK Thu, Jul 15, 2010 2.40 2.48 2.39 2.41
777 NASDAQ OPK Wed, Jul 14, 2010 2.41 2.49 2.17 2.47
776 NASDAQ OPK Tue, Jul 13, 2010 2.37 2.49 2.37 2.49
775 NASDAQ OPK Mon, Jul 12, 2010 2.33 2.44 2.33 2.37
774 NASDAQ OPK Fri, Jul 9, 2010 2.27 2.40 2.27 2.40
773 NASDAQ OPK Thu, Jul 8, 2010 2.27 2.38 2.25 2.37
772 NASDAQ OPK Wed, Jul 7, 2010 2.18 2.32 2.18 2.31
771 NASDAQ OPK Tue, Jul 6, 2010 2.18 2.34 2.18 2.23
770 NASDAQ OPK Fri, Jul 2, 2010 2.12 2.25 2.11 2.20
769 NASDAQ OPK Thu, Jul 1, 2010 2.22 2.27 2.10 2.15
768 NASDAQ OPK Wed, Jun 30, 2010 2.16 2.35 2.11 2.26
767 NASDAQ OPK Tue, Jun 29, 2010 2.14 2.42 2.14 2.24
766 NASDAQ OPK Mon, Jun 28, 2010 2.45 2.45 2.24 2.29
765 NASDAQ OPK Fri, Jun 25, 2010 2.23 2.55 2.13 2.55
764 NASDAQ OPK Thu, Jun 24, 2010 2.02 2.22 2.02 2.20
763 NASDAQ OPK Wed, Jun 23, 2010 2.14 2.19 2.01 2.03
762 NASDAQ OPK Tue, Jun 22, 2010 2.13 2.18 2.12 2.17
761 NASDAQ OPK Mon, Jun 21, 2010 2.16 2.20 2.12 2.15
760 NASDAQ OPK Fri, Jun 18, 2010 2.09 2.19 2.09 2.19
759 NASDAQ OPK Thu, Jun 17, 2010 2.13 2.15 2.03 2.13
758 NASDAQ OPK Wed, Jun 16, 2010 2.08 2.16 2.08 2.12
757 NASDAQ OPK Tue, Jun 15, 2010 2.05 2.13 2.04 2.13
756 NASDAQ OPK Mon, Jun 14, 2010 2.05 2.09 1.99 2.07
755 NASDAQ OPK Fri, Jun 11, 2010 1.98 2.04 1.96 2.03
754 NASDAQ OPK Thu, Jun 10, 2010 1.90 2.01 1.90 2.01
753 NASDAQ OPK Wed, Jun 9, 2010 1.92 1.99 1.88 1.93
752 NASDAQ OPK Tue, Jun 8, 2010 1.90 1.96 1.89 1.91
751 NASDAQ OPK Mon, Jun 7, 2010 2.00 2.04 1.85 1.88
750 NASDAQ OPK Fri, Jun 4, 2010 2.00 2.04 1.97 1.97
749 NASDAQ OPK Thu, Jun 3, 2010 2.00 2.08 2.00 2.06
748 NASDAQ OPK Wed, Jun 2, 2010 2.01 2.06 1.85 2.06
747 NASDAQ OPK Tue, Jun 1, 2010 1.98 2.05 1.97 1.97
746 NASDAQ OPK Fri, May 28, 2010 2.04 2.04 1.98 1.98
745 NASDAQ OPK Thu, May 27, 2010 1.98 2.05 1.98 2.05
744 NASDAQ OPK Wed, May 26, 2010 1.80 2.05 1.80 1.96
743 NASDAQ OPK Tue, May 25, 2010 1.98 2.02 1.93 1.99
742 NASDAQ OPK Mon, May 24, 2010 2.03 2.06 1.99 2.03
741 NASDAQ OPK Fri, May 21, 2010 2.02 2.12 1.96 2.03
740 NASDAQ OPK Thu, May 20, 2010 2.02 2.12 1.97 1.98
739 NASDAQ OPK Wed, May 19, 2010 2.16 2.17 2.10 2.12
738 NASDAQ OPK Tue, May 18, 2010 2.17 2.20 2.14 2.16
737 NASDAQ OPK Mon, May 17, 2010 2.11 2.20 2.11 2.16
736 NASDAQ OPK Fri, May 14, 2010 2.16 2.16 2.06 2.11
735 NASDAQ OPK Thu, May 13, 2010 2.23 2.23 2.11 2.17
734 NASDAQ OPK Wed, May 12, 2010 2.05 2.23 1.99 2.20
733 NASDAQ OPK Tue, May 11, 2010 2.01 2.05 2.00 2.04
732 NASDAQ OPK Mon, May 10, 2010 1.96 2.05 1.91 2.03
731 NASDAQ OPK Fri, May 7, 2010 1.86 2.01 1.86 1.87
730 NASDAQ OPK Thu, May 6, 2010 2.03 2.10 1.81 1.88
729 NASDAQ OPK Wed, May 5, 2010 2.20 2.21 2.05 2.09
728 NASDAQ OPK Tue, May 4, 2010 2.20 2.22 2.13 2.20
727 NASDAQ OPK Mon, May 3, 2010 2.15 2.23 2.13 2.22
726 NASDAQ OPK Fri, Apr 30, 2010 2.24 2.25 2.15 2.16
725 NASDAQ OPK Thu, Apr 29, 2010 2.22 2.23 2.15 2.21
724 NASDAQ OPK Wed, Apr 28, 2010 2.23 2.23 2.15 2.16
723 NASDAQ OPK Tue, Apr 27, 2010 2.20 2.22 2.17 2.18
722 NASDAQ OPK Mon, Apr 26, 2010 2.20 2.27 2.19 2.23
721 NASDAQ OPK Fri, Apr 23, 2010 2.23 2.24 2.19 2.22
720 NASDAQ OPK Thu, Apr 22, 2010 2.27 2.28 2.20 2.25
719 NASDAQ OPK Wed, Apr 21, 2010 2.30 2.31 2.25 2.29
718 NASDAQ OPK Tue, Apr 20, 2010 2.28 2.33 2.21 2.31
717 NASDAQ OPK Mon, Apr 19, 2010 2.30 2.38 2.26 2.28
716 NASDAQ OPK Fri, Apr 16, 2010 2.41 2.41 2.28 2.35
715 NASDAQ OPK Thu, Apr 15, 2010 2.40 2.40 2.25 2.33
714 NASDAQ OPK Wed, Apr 14, 2010 2.47 2.47 2.30 2.36
713 NASDAQ OPK Tue, Apr 13, 2010 2.21 2.45 2.16 2.32
712 NASDAQ OPK Mon, Apr 12, 2010 2.06 2.21 2.04 2.16
711 NASDAQ OPK Fri, Apr 9, 2010 2.02 2.05 2.00 2.05
710 NASDAQ OPK Thu, Apr 8, 2010 2.00 2.03 1.98 2.03
709 NASDAQ OPK Wed, Apr 7, 2010 1.99 2.03 1.99 2.02
708 NASDAQ OPK Tue, Apr 6, 2010 2.05 2.05 2.01 2.02
707 NASDAQ OPK Mon, Apr 5, 2010 2.02 2.02 2.00 2.02
706 NASDAQ OPK Thu, Apr 1, 2010 2.01 2.03 1.99 2.00
705 NASDAQ OPK Wed, Mar 31, 2010 2.05 2.05 1.98 1.98
704 NASDAQ OPK Tue, Mar 30, 2010 2.03 2.05 2.00 2.02
703 NASDAQ OPK Mon, Mar 29, 2010 2.00 2.05 2.00 2.03
702 NASDAQ OPK Fri, Mar 26, 2010 2.00 2.05 2.00 2.03
701 NASDAQ OPK Thu, Mar 25, 2010 2.00 2.05 2.00 2.02
700 NASDAQ OPK Wed, Mar 24, 2010 2.02 2.03 1.99 2.03
699 NASDAQ OPK Tue, Mar 23, 2010 2.00 2.06 2.00 2.02
698 NASDAQ OPK Mon, Mar 22, 2010 2.05 2.05 2.00 2.01
697 NASDAQ OPK Fri, Mar 19, 2010 2.00 2.05 1.95 2.03
696 NASDAQ OPK Thu, Mar 18, 2010 2.05 2.05 1.98 1.99
695 NASDAQ OPK Wed, Mar 17, 2010 2.03 2.05 2.01 2.04
694 NASDAQ OPK Tue, Mar 16, 2010 2.03 2.05 2.02 2.05
693 NASDAQ OPK Mon, Mar 15, 2010 2.04 2.05 2.00 2.05
692 NASDAQ OPK Fri, Mar 12, 2010 2.03 2.06 1.98 2.06
691 NASDAQ OPK Thu, Mar 11, 2010 2.00 2.03 1.97 2.03
690 NASDAQ OPK Wed, Mar 10, 2010 2.05 2.05 1.99 2.02
689 NASDAQ OPK Tue, Mar 9, 2010 2.02 2.03 1.99 2.01
688 NASDAQ OPK Mon, Mar 8, 2010 2.06 2.06 2.00 2.01
687 NASDAQ OPK Fri, Mar 5, 2010 2.03 2.05 2.00 2.05
686 NASDAQ OPK Thu, Mar 4, 2010 2.02 2.02 2.00 2.02
685 NASDAQ OPK Wed, Mar 3, 2010 2.05 2.07 2.01 2.02
684 NASDAQ OPK Tue, Mar 2, 2010 2.04 2.05 2.00 2.05
683 NASDAQ OPK Mon, Mar 1, 2010 2.01 2.07 1.99 2.05
682 NASDAQ OPK Fri, Feb 26, 2010 2.00 2.03 1.99 2.01
681 NASDAQ OPK Thu, Feb 25, 2010 1.98 2.01 1.95 2.01
680 NASDAQ OPK Wed, Feb 24, 2010 2.06 2.06 1.96 2.00
679 NASDAQ OPK Tue, Feb 23, 2010 2.05 2.07 2.01 2.05
678 NASDAQ OPK Mon, Feb 22, 2010 2.05 2.05 2.02 2.04
677 NASDAQ OPK Fri, Feb 19, 2010 2.03 2.03 2.00 2.02
676 NASDAQ OPK Thu, Feb 18, 2010 2.03 2.03 1.99 2.03
675 NASDAQ OPK Wed, Feb 17, 2010 2.07 2.07 1.99 2.03
674 NASDAQ OPK Tue, Feb 16, 2010 2.03 2.19 2.01 2.07
673 NASDAQ OPK Fri, Feb 12, 2010 1.94 2.10 1.94 2.03
672 NASDAQ OPK Thu, Feb 11, 2010 1.71 2.20 1.71 1.94
671 NASDAQ OPK Wed, Feb 10, 2010 1.68 1.76 1.67 1.74
670 NASDAQ OPK Tue, Feb 9, 2010 1.69 1.69 1.65 1.68
669 NASDAQ OPK Mon, Feb 8, 2010 1.64 1.72 1.64 1.69
668 NASDAQ OPK Fri, Feb 5, 2010 1.65 1.66 1.61 1.63
667 NASDAQ OPK Thu, Feb 4, 2010 1.70 1.70 1.60 1.64
666 NASDAQ OPK Wed, Feb 3, 2010 1.69 1.73 1.65 1.71
665 NASDAQ OPK Tue, Feb 2, 2010 1.74 1.74 1.67 1.70
664 NASDAQ OPK Mon, Feb 1, 2010 1.71 1.75 1.69 1.74
663 NASDAQ OPK Fri, Jan 29, 2010 1.76 1.76 1.66 1.70
662 NASDAQ OPK Thu, Jan 28, 2010 1.80 1.82 1.77 1.78
661 NASDAQ OPK Wed, Jan 27, 2010 1.78 1.81 1.77 1.79
660 NASDAQ OPK Tue, Jan 26, 2010 1.72 1.84 1.70 1.79
659 NASDAQ OPK Mon, Jan 25, 2010 1.74 1.77 1.71 1.74
658 NASDAQ OPK Fri, Jan 22, 2010 1.71 1.80 1.70 1.72
657 NASDAQ OPK Thu, Jan 21, 2010 1.85 1.88 1.71 1.71
656 NASDAQ OPK Wed, Jan 20, 2010 1.83 1.88 1.81 1.88
655 NASDAQ OPK Tue, Jan 19, 2010 1.77 1.85 1.76 1.85
654 NASDAQ OPK Fri, Jan 15, 2010 1.85 1.85 1.75 1.76
653 NASDAQ OPK Thu, Jan 14, 2010 1.84 1.85 1.82 1.84
652 NASDAQ OPK Wed, Jan 13, 2010 1.82 1.84 1.82 1.83
651 NASDAQ OPK Tue, Jan 12, 2010 1.89 1.89 1.79 1.82
650 NASDAQ OPK Mon, Jan 11, 2010 1.90 1.95 1.89 1.91
649 NASDAQ OPK Fri, Jan 8, 2010 1.92 1.94 1.86 1.89
648 NASDAQ OPK Thu, Jan 7, 2010 1.79 1.94 1.76 1.92
647 NASDAQ OPK Wed, Jan 6, 2010 1.90 1.92 1.77 1.79
646 NASDAQ OPK Tue, Jan 5, 2010 1.64 1.95 1.64 1.93
645 NASDAQ OPK Mon, Jan 4, 2010 1.80 1.97 1.76 1.95
644 NASDAQ OPK Thu, Dec 31, 2009 1.61 1.95 1.60 1.83
643 NASDAQ OPK Wed, Dec 30, 2009 1.66 1.66 1.60 1.62
642 NASDAQ OPK Tue, Dec 29, 2009 1.66 1.68 1.64 1.67
641 NASDAQ OPK Mon, Dec 28, 2009 1.71 1.71 1.61 1.65
640 NASDAQ OPK Thu, Dec 24, 2009 1.74 1.74 1.64 1.68
639 NASDAQ OPK Wed, Dec 23, 2009 1.77 1.77 1.67 1.73
638 NASDAQ OPK Tue, Dec 22, 2009 1.76 1.79 1.74 1.75
637 NASDAQ OPK Mon, Dec 21, 2009 1.73 1.75 1.68 1.74
636 NASDAQ OPK Fri, Dec 18, 2009 1.51 1.95 1.51 1.73
635 NASDAQ OPK Thu, Dec 17, 2009 1.60 1.65 1.60 1.63
634 NASDAQ OPK Wed, Dec 16, 2009 1.70 1.72 1.60 1.61
633 NASDAQ OPK Tue, Dec 15, 2009 1.62 1.72 1.55 1.69
632 NASDAQ OPK Mon, Dec 14, 2009 1.52 1.73 1.50 1.63
631 NASDAQ OPK Fri, Dec 11, 2009 1.70 1.70 1.61 1.69
630 NASDAQ OPK Thu, Dec 10, 2009 1.77 1.80 1.60 1.71
629 NASDAQ OPK Wed, Dec 9, 2009 1.56 1.80 1.50 1.77
628 NASDAQ OPK Tue, Dec 8, 2009 1.66 1.68 1.54 1.55
627 NASDAQ OPK Mon, Dec 7, 2009 1.75 1.75 1.65 1.68
626 NASDAQ OPK Fri, Dec 4, 2009 1.71 1.74 1.61 1.72
625 NASDAQ OPK Thu, Dec 3, 2009 1.65 1.75 1.63 1.67
624 NASDAQ OPK Wed, Dec 2, 2009 1.65 1.77 1.65 1.77
623 NASDAQ OPK Tue, Dec 1, 2009 1.79 1.79 1.61 1.65
622 NASDAQ OPK Mon, Nov 30, 2009 2.01 2.01 1.64 1.75
621 NASDAQ OPK Fri, Nov 27, 2009 2.05 2.05 1.98 1.98
620 NASDAQ OPK Wed, Nov 25, 2009 2.10 2.11 2.05 2.05
619 NASDAQ OPK Tue, Nov 24, 2009 2.05 2.10 1.99 2.09
618 NASDAQ OPK Mon, Nov 23, 2009 2.11 2.12 2.07 2.10
617 NASDAQ OPK Fri, Nov 20, 2009 2.04 2.09 2.04 2.07
616 NASDAQ OPK Thu, Nov 19, 2009 2.07 2.08 2.03 2.04
615 NASDAQ OPK Wed, Nov 18, 2009 2.01 2.08 2.01 2.06
614 NASDAQ OPK Tue, Nov 17, 2009 2.09 2.10 1.98 2.04
613 NASDAQ OPK Mon, Nov 16, 2009 2.05 2.11 2.01 2.10
612 NASDAQ OPK Fri, Nov 13, 2009 2.05 2.09 2.01 2.02
611 NASDAQ OPK Thu, Nov 12, 2009 2.08 2.15 2.03 2.05
610 NASDAQ OPK Wed, Nov 11, 2009 2.26 2.26 2.06 2.08
609 NASDAQ OPK Tue, Nov 10, 2009 2.06 2.12 2.05 2.05
608 NASDAQ OPK Mon, Nov 9, 2009 2.11 2.15 2.05 2.08
607 NASDAQ OPK Fri, Nov 6, 2009 2.09 2.15 2.07 2.09
606 NASDAQ OPK Thu, Nov 5, 2009 2.09 2.18 2.06 2.13
605 NASDAQ OPK Wed, Nov 4, 2009 2.23 2.37 2.06 2.06
604 NASDAQ OPK Tue, Nov 3, 2009 2.07 2.22 2.02 2.18
603 NASDAQ OPK Mon, Nov 2, 2009 2.18 2.18 2.02 2.10
602 NASDAQ OPK Fri, Oct 30, 2009 2.37 2.37 2.05 2.17
601 NASDAQ OPK Thu, Oct 29, 2009 2.08 2.22 2.00 2.18
600 NASDAQ OPK Wed, Oct 28, 2009 2.10 2.11 2.02 2.06
599 NASDAQ OPK Tue, Oct 27, 2009 2.12 2.25 2.09 2.11
598 NASDAQ OPK Mon, Oct 26, 2009 2.21 2.21 2.09 2.13
597 NASDAQ OPK Fri, Oct 23, 2009 2.25 2.26 2.15 2.21
596 NASDAQ OPK Thu, Oct 22, 2009 2.18 2.31 2.18 2.24
595 NASDAQ OPK Wed, Oct 21, 2009 2.33 2.34 2.20 2.21
594 NASDAQ OPK Tue, Oct 20, 2009 2.39 2.40 2.31 2.34
593 NASDAQ OPK Mon, Oct 19, 2009 2.50 2.50 2.30 2.39
592 NASDAQ OPK Fri, Oct 16, 2009 2.38 2.45 2.31 2.43
591 NASDAQ OPK Thu, Oct 15, 2009 2.34 2.45 2.30 2.39
590 NASDAQ OPK Wed, Oct 14, 2009 2.37 2.38 2.26 2.35
589 NASDAQ OPK Tue, Oct 13, 2009 2.25 2.38 2.23 2.32
588 NASDAQ OPK Mon, Oct 12, 2009 2.31 2.45 2.21 2.21
587 NASDAQ OPK Fri, Oct 9, 2009 2.25 2.27 2.20 2.25
586 NASDAQ OPK Thu, Oct 8, 2009 2.31 2.35 2.20 2.29
585 NASDAQ OPK Wed, Oct 7, 2009 2.39 2.39 2.27 2.29
584 NASDAQ OPK Tue, Oct 6, 2009 2.46 2.50 2.36 2.38
583 NASDAQ OPK Mon, Oct 5, 2009 2.40 2.45 2.24 2.43
582 NASDAQ OPK Fri, Oct 2, 2009 2.02 2.37 2.00 2.22
581 NASDAQ OPK Thu, Oct 1, 2009 2.26 2.27 2.09 2.09
580 NASDAQ OPK Wed, Sep 30, 2009 2.40 2.41 2.27 2.28
579 NASDAQ OPK Tue, Sep 29, 2009 2.45 2.45 2.32 2.33
578 NASDAQ OPK Mon, Sep 28, 2009 2.65 2.65 2.42 2.45
577 NASDAQ OPK Fri, Sep 25, 2009 2.45 2.48 2.40 2.42
576 NASDAQ OPK Thu, Sep 24, 2009 2.57 2.70 2.43 2.45
575 NASDAQ OPK Wed, Sep 23, 2009 2.60 2.69 2.55 2.55
574 NASDAQ OPK Tue, Sep 22, 2009 2.73 2.73 2.53 2.59
573 NASDAQ OPK Mon, Sep 21, 2009 2.65 2.72 2.50 2.66
572 NASDAQ OPK Fri, Sep 18, 2009 2.42 2.75 2.42 2.68
571 NASDAQ OPK Thu, Sep 17, 2009 2.45 2.49 2.45 2.48
570 NASDAQ OPK Wed, Sep 16, 2009 2.40 2.51 2.40 2.46
569 NASDAQ OPK Tue, Sep 15, 2009 2.42 2.48 2.42 2.47
568 NASDAQ OPK Mon, Sep 14, 2009 2.40 2.50 2.33 2.48
567 NASDAQ OPK Fri, Sep 11, 2009 2.55 2.55 2.46 2.49
566 NASDAQ OPK Thu, Sep 10, 2009 2.45 2.55 2.45 2.53
565 NASDAQ OPK Wed, Sep 9, 2009 2.40 2.65 2.39 2.55
564 NASDAQ OPK Tue, Sep 8, 2009 2.40 2.60 2.40 2.53
563 NASDAQ OPK Fri, Sep 4, 2009 2.66 2.76 2.56 2.61
562 NASDAQ OPK Thu, Sep 3, 2009 2.62 2.80 2.54 2.76
561 NASDAQ OPK Wed, Sep 2, 2009 2.61 2.91 2.45 2.67
560 NASDAQ OPK Tue, Sep 1, 2009 2.40 2.85 2.30 2.68
559 NASDAQ OPK Mon, Aug 31, 2009 2.38 2.44 2.21 2.33
558 NASDAQ OPK Fri, Aug 28, 2009 2.50 2.50 2.28 2.37
557 NASDAQ OPK Thu, Aug 27, 2009 2.34 2.36 2.14 2.35
556 NASDAQ OPK Wed, Aug 26, 2009 2.19 2.45 2.19 2.30
555 NASDAQ OPK Tue, Aug 25, 2009 2.19 2.33 2.11 2.32
554 NASDAQ OPK Mon, Aug 24, 2009 2.17 2.20 2.11 2.16
553 NASDAQ OPK Fri, Aug 21, 2009 2.25 2.25 2.10 2.17
552 NASDAQ OPK Thu, Aug 20, 2009 2.15 2.16 2.06 2.10
551 NASDAQ OPK Wed, Aug 19, 2009 2.05 2.16 2.05 2.15
550 NASDAQ OPK Tue, Aug 18, 2009 2.18 2.20 2.08 2.12
549 NASDAQ OPK Mon, Aug 17, 2009 2.13 2.25 2.07 2.09
548 NASDAQ OPK Fri, Aug 14, 2009 2.31 2.33 2.15 2.18
547 NASDAQ OPK Thu, Aug 13, 2009 2.28 2.36 2.09 2.32
546 NASDAQ OPK Wed, Aug 12, 2009 2.05 2.25 2.05 2.08
545 NASDAQ OPK Tue, Aug 11, 2009 2.07 2.20 1.95 2.04
544 NASDAQ OPK Mon, Aug 10, 2009 2.07 2.19 2.05 2.11
543 NASDAQ OPK Fri, Aug 7, 2009 2.05 2.22 1.92 2.04
542 NASDAQ OPK Thu, Aug 6, 2009 2.01 2.10 1.89 2.05
541 NASDAQ OPK Wed, Aug 5, 2009 2.10 2.15 1.90 2.00
540 NASDAQ OPK Tue, Aug 4, 2009 2.09 2.11 2.02 2.09
539 NASDAQ OPK Mon, Aug 3, 2009 2.34 2.34 2.05 2.11
538 NASDAQ OPK Fri, Jul 31, 2009 2.35 2.37 2.20 2.27
537 NASDAQ OPK Thu, Jul 30, 2009 2.23 2.57 2.23 2.36
536 NASDAQ OPK Wed, Jul 29, 2009 2.15 2.30 2.11 2.25
535 NASDAQ OPK Tue, Jul 28, 2009 2.33 2.38 2.01 2.16
534 NASDAQ OPK Mon, Jul 27, 2009 1.86 2.18 1.76 2.11
533 NASDAQ OPK Fri, Jul 24, 2009 1.80 1.88 1.77 1.81
532 NASDAQ OPK Thu, Jul 23, 2009 1.80 1.82 1.77 1.80
531 NASDAQ OPK Wed, Jul 22, 2009 1.71 1.77 1.70 1.77
530 NASDAQ OPK Tue, Jul 21, 2009 1.77 1.80 1.74 1.78
529 NASDAQ OPK Mon, Jul 20, 2009 1.75 1.80 1.70 1.77
528 NASDAQ OPK Fri, Jul 17, 2009 1.73 1.74 1.67 1.69
527 NASDAQ OPK Thu, Jul 16, 2009 1.71 1.74 1.68 1.73
526 NASDAQ OPK Wed, Jul 15, 2009 1.64 1.73 1.64 1.73
525 NASDAQ OPK Tue, Jul 14, 2009 1.62 1.62 1.57 1.61
524 NASDAQ OPK Mon, Jul 13, 2009 1.61 1.62 1.50 1.62
523 NASDAQ OPK Fri, Jul 10, 2009 1.55 1.60 1.54 1.59
522 NASDAQ OPK Thu, Jul 9, 2009 1.65 1.70 1.55 1.55
521 NASDAQ OPK Wed, Jul 8, 2009 1.65 1.66 1.55 1.65
520 NASDAQ OPK Tue, Jul 7, 2009 1.71 1.73 1.63 1.64
519 NASDAQ OPK Mon, Jul 6, 2009 1.74 1.77 1.60 1.73
518 NASDAQ OPK Thu, Jul 2, 2009 1.71 1.80 1.69 1.75
517 NASDAQ OPK Wed, Jul 1, 2009 1.79 1.80 1.71 1.75
516 NASDAQ OPK Tue, Jun 30, 2009 1.70 1.80 1.70 1.77
515 NASDAQ OPK Mon, Jun 29, 2009 1.79 1.81 1.65 1.76
514 NASDAQ OPK Fri, Jun 26, 2009 1.76 1.80 1.66 1.80
513 NASDAQ OPK Thu, Jun 25, 2009 1.60 1.80 1.53 1.77
512 NASDAQ OPK Wed, Jun 24, 2009 1.71 1.73 1.60 1.65
511 NASDAQ OPK Tue, Jun 23, 2009 1.84 1.84 1.68 1.72
510 NASDAQ OPK Mon, Jun 22, 2009 1.85 1.90 1.60 1.78
509 NASDAQ OPK Fri, Jun 19, 2009 1.61 1.89 1.60 1.87
508 NASDAQ OPK Thu, Jun 18, 2009 1.59 1.60 1.50 1.59
507 NASDAQ OPK Wed, Jun 17, 2009 1.60 1.62 1.41 1.46
506 NASDAQ OPK Tue, Jun 16, 2009 1.58 1.58 1.41 1.42
505 NASDAQ OPK Mon, Jun 15, 2009 1.68 1.68 1.41 1.44
504 NASDAQ OPK Fri, Jun 12, 2009 1.46 1.68 1.46 1.68
503 NASDAQ OPK Thu, Jun 11, 2009 1.64 1.64 1.47 1.52
502 NASDAQ OPK Wed, Jun 10, 2009 1.57 1.61 1.43 1.54
501 NASDAQ OPK Tue, Jun 9, 2009 1.77 1.77 1.40 1.57
500 NASDAQ OPK Mon, Jun 8, 2009 1.72 1.72 1.54 1.61
499 NASDAQ OPK Fri, Jun 5, 2009 1.82 1.88 1.42 1.57
498 NASDAQ OPK Thu, Jun 4, 2009 1.42 1.82 1.30 1.80
497 NASDAQ OPK Wed, Jun 3, 2009 1.39 1.42 1.28 1.41
496 NASDAQ OPK Tue, Jun 2, 2009 1.20 1.40 1.19 1.40
495 NASDAQ OPK Mon, Jun 1, 2009 1.20 1.26 1.18 1.20
494 NASDAQ OPK Fri, May 29, 2009 1.20 1.25 1.17 1.20
493 NASDAQ OPK Thu, May 28, 2009 1.20 1.25 1.15 1.24
492 NASDAQ OPK Wed, May 27, 2009 1.19 1.20 1.12 1.18
491 NASDAQ OPK Tue, May 26, 2009 1.12 1.20 1.05 1.19
490 NASDAQ OPK Fri, May 22, 2009 1.10 1.21 1.09 1.16
489 NASDAQ OPK Thu, May 21, 2009 1.26 1.26 1.15 1.20
488 NASDAQ OPK Wed, May 20, 2009 1.35 1.36 1.26 1.28
487 NASDAQ OPK Tue, May 19, 2009 1.32 1.34 1.25 1.34
486 NASDAQ OPK Mon, May 18, 2009 1.30 1.35 1.20 1.32
485 NASDAQ OPK Fri, May 15, 2009 1.15 1.45 1.15 1.27
484 NASDAQ OPK Thu, May 14, 2009 1.07 1.17 1.00 1.17
483 NASDAQ OPK Wed, May 13, 2009 1.10 1.10 1.05 1.07
482 NASDAQ OPK Tue, May 12, 2009 1.15 1.16 1.12 1.13
481 NASDAQ OPK Mon, May 11, 2009 1.11 1.17 1.07 1.15
480 NASDAQ OPK Fri, May 8, 2009 1.18 1.19 1.07 1.16
479 NASDAQ OPK Thu, May 7, 2009 1.18 1.18 1.13 1.17
478 NASDAQ OPK Wed, May 6, 2009 1.13 1.16 1.11 1.16
477 NASDAQ OPK Tue, May 5, 2009 1.14 1.18 1.12 1.16
476 NASDAQ OPK Mon, May 4, 2009 1.19 1.19 1.14 1.17
475 NASDAQ OPK Fri, May 1, 2009 1.23 1.23 1.16 1.16
474 NASDAQ OPK Thu, Apr 30, 2009 1.22 1.24 1.16 1.18
473 NASDAQ OPK Wed, Apr 29, 2009 1.18 1.22 1.16 1.22
472 NASDAQ OPK Tue, Apr 28, 2009 1.17 1.21 1.13 1.17
471 NASDAQ OPK Mon, Apr 27, 2009 1.12 1.24 1.10 1.18
470 NASDAQ OPK Fri, Apr 24, 2009 1.15 1.17 1.10 1.15
469 NASDAQ OPK Thu, Apr 23, 2009 1.20 1.20 1.12 1.18
468 NASDAQ OPK Wed, Apr 22, 2009 1.25 1.25 1.18 1.20
467 NASDAQ OPK Tue, Apr 21, 2009 1.20 1.24 1.18 1.23
466 NASDAQ OPK Mon, Apr 20, 2009 1.24 1.24 1.11 1.20
465 NASDAQ OPK Fri, Apr 17, 2009 1.10 1.25 1.06 1.25
464 NASDAQ OPK Thu, Apr 16, 2009 1.06 1.10 1.03 1.09
463 NASDAQ OPK Wed, Apr 15, 2009 1.12 1.19 1.01 1.05
462 NASDAQ OPK Tue, Apr 14, 2009 1.10 1.12 1.03 1.03
461 NASDAQ OPK Mon, Apr 13, 2009 1.10 1.12 1.05 1.12
460 NASDAQ OPK Thu, Apr 9, 2009 1.05 1.12 1.01 1.12
459 NASDAQ OPK Wed, Apr 8, 2009 1.01 1.03 0.97 1.03
458 NASDAQ OPK Tue, Apr 7, 2009 1.02 1.05 1.00 1.00
457 NASDAQ OPK Mon, Apr 6, 2009 1.08 1.08 0.98 1.04
456 NASDAQ OPK Fri, Apr 3, 2009 1.00 1.05 0.98 1.05
455 NASDAQ OPK Thu, Apr 2, 2009 1.00 1.02 0.98 1.01
454 NASDAQ OPK Wed, Apr 1, 2009 0.99 0.99 0.88 0.98
453 NASDAQ OPK Tue, Mar 31, 2009 1.00 1.00 0.94 0.98
452 NASDAQ OPK Mon, Mar 30, 2009 0.95 1.00 0.95 0.97
451 NASDAQ OPK Fri, Mar 27, 2009 1.06 1.06 0.94 1.02
450 NASDAQ OPK Thu, Mar 26, 2009 0.84 1.03 0.84 1.03
449 NASDAQ OPK Wed, Mar 25, 2009 0.81 0.87 0.80 0.87
448 NASDAQ OPK Tue, Mar 24, 2009 0.80 0.89 0.66 0.81
447 NASDAQ OPK Mon, Mar 23, 2009 0.80 0.83 0.75 0.83
446 NASDAQ OPK Fri, Mar 20, 2009 0.80 0.81 0.73 0.77
445 NASDAQ OPK Thu, Mar 19, 2009 0.90 0.94 0.77 0.79
444 NASDAQ OPK Wed, Mar 18, 2009 0.69 0.86 0.67 0.83
443 NASDAQ OPK Tue, Mar 17, 2009 0.65 0.69 0.64 0.64
442 NASDAQ OPK Mon, Mar 16, 2009 0.61 0.75 0.57 0.70
441 NASDAQ OPK Fri, Mar 13, 2009 0.62 0.63 0.61 0.61
440 NASDAQ OPK Thu, Mar 12, 2009 0.61 0.64 0.55 0.62
439 NASDAQ OPK Wed, Mar 11, 2009 0.70 0.70 0.55 0.60
438 NASDAQ OPK Tue, Mar 10, 2009 0.67 0.68 0.61 0.68
437 NASDAQ OPK Mon, Mar 9, 2009 0.80 0.80 0.62 0.68
436 NASDAQ OPK Fri, Mar 6, 2009 0.92 0.92 0.59 0.80
435 NASDAQ OPK Thu, Mar 5, 2009 1.07 1.07 0.88 0.91
434 NASDAQ OPK Wed, Mar 4, 2009 1.01 1.02 0.91 0.99
433 NASDAQ OPK Tue, Mar 3, 2009 0.97 1.03 0.93 0.98
432 NASDAQ OPK Mon, Mar 2, 2009 1.08 1.09 0.99 1.00
431 NASDAQ OPK Fri, Feb 27, 2009 1.00 1.13 0.94 1.13
430 NASDAQ OPK Thu, Feb 26, 2009 1.08 1.09 0.99 1.01
429 NASDAQ OPK Wed, Feb 25, 2009 0.97 1.24 0.88 1.07
428 NASDAQ OPK Tue, Feb 24, 2009 1.04 1.11 0.89 1.10
427 NASDAQ OPK Mon, Feb 23, 2009 1.20 1.20 1.02 1.02
426 NASDAQ OPK Fri, Feb 20, 2009 1.11 1.13 1.07 1.10
425 NASDAQ OPK Thu, Feb 19, 2009 1.19 1.19 1.13 1.14
424 NASDAQ OPK Wed, Feb 18, 2009 1.22 1.22 1.16 1.16
423 NASDAQ OPK Tue, Feb 17, 2009 1.30 1.30 1.21 1.21
422 NASDAQ OPK Fri, Feb 13, 2009 1.28 1.28 1.20 1.25
421 NASDAQ OPK Thu, Feb 12, 2009 1.31 1.38 1.21 1.27
420 NASDAQ OPK Wed, Feb 11, 2009 1.25 1.29 1.23 1.24
419 NASDAQ OPK Tue, Feb 10, 2009 1.30 1.30 1.21 1.21
418 NASDAQ OPK Mon, Feb 9, 2009 1.22 1.33 1.22 1.27
417 NASDAQ OPK Fri, Feb 6, 2009 1.26 1.31 1.25 1.30
416 NASDAQ OPK Thu, Feb 5, 2009 1.34 1.35 1.26 1.28
415 NASDAQ OPK Wed, Feb 4, 2009 1.44 1.48 1.34 1.35
414 NASDAQ OPK Tue, Feb 3, 2009 1.42 1.53 1.41 1.45
413 NASDAQ OPK Mon, Feb 2, 2009 1.33 1.54 1.33 1.49
412 NASDAQ OPK Fri, Jan 30, 2009 1.37 1.39 1.31 1.31
411 NASDAQ OPK Thu, Jan 29, 2009 1.45 1.46 1.40 1.40
410 NASDAQ OPK Wed, Jan 28, 2009 1.43 1.49 1.37 1.47
409 NASDAQ OPK Tue, Jan 27, 2009 1.51 1.56 1.43 1.44
408 NASDAQ OPK Mon, Jan 26, 2009 1.62 1.65 1.48 1.51
407 NASDAQ OPK Fri, Jan 23, 2009 1.30 1.59 1.30 1.48
406 NASDAQ OPK Thu, Jan 22, 2009 1.29 1.33 1.25 1.25
405 NASDAQ OPK Wed, Jan 21, 2009 1.25 1.39 1.25 1.32
404 NASDAQ OPK Tue, Jan 20, 2009 1.40 1.47 1.29 1.29
403 NASDAQ OPK Fri, Jan 16, 2009 1.33 1.50 1.33 1.43
402 NASDAQ OPK Thu, Jan 15, 2009 1.34 1.35 1.26 1.30
401 NASDAQ OPK Wed, Jan 14, 2009 1.41 1.43 1.30 1.30
400 NASDAQ OPK Tue, Jan 13, 2009 1.43 1.47 1.41 1.41
399 NASDAQ OPK Mon, Jan 12, 2009 1.59 1.59 1.43 1.43
398 NASDAQ OPK Fri, Jan 9, 2009 1.70 1.70 1.59 1.59
397 NASDAQ OPK Thu, Jan 8, 2009 1.56 1.70 1.55 1.70
396 NASDAQ OPK Wed, Jan 7, 2009 1.60 1.70 1.50 1.57
395 NASDAQ OPK Tue, Jan 6, 2009 1.63 1.70 1.63 1.68
394 NASDAQ OPK Mon, Jan 5, 2009 1.61 1.68 1.50 1.61
393 NASDAQ OPK Fri, Jan 2, 2009 1.62 1.62 1.55 1.58
392 NASDAQ OPK Wed, Dec 31, 2008 1.57 1.72 1.56 1.62
391 NASDAQ OPK Tue, Dec 30, 2008 1.45 1.63 1.43 1.57
390 NASDAQ OPK Mon, Dec 29, 2008 1.44 1.70 1.40 1.43
389 NASDAQ OPK Fri, Dec 26, 2008 1.62 1.64 1.50 1.59
388 NASDAQ OPK Wed, Dec 24, 2008 1.59 1.61 1.59 1.61
387 NASDAQ OPK Tue, Dec 23, 2008 1.53 1.75 1.32 1.59
386 NASDAQ OPK Mon, Dec 22, 2008 1.35 1.55 1.35 1.55
385 NASDAQ OPK Fri, Dec 19, 2008 1.43 1.51 1.35 1.35
384 NASDAQ OPK Thu, Dec 18, 2008 1.39 1.44 1.31 1.36
383 NASDAQ OPK Wed, Dec 17, 2008 1.50 1.50 1.31 1.38
382 NASDAQ OPK Tue, Dec 16, 2008 1.50 1.50 1.36 1.41
381 NASDAQ OPK Mon, Dec 15, 2008 1.54 1.54 1.35 1.36
380 NASDAQ OPK Fri, Dec 12, 2008 1.30 1.60 1.28 1.60
379 NASDAQ OPK Thu, Dec 11, 2008 1.37 1.43 1.26 1.26
378 NASDAQ OPK Wed, Dec 10, 2008 1.35 1.47 1.34 1.40
377 NASDAQ OPK Tue, Dec 9, 2008 1.57 1.65 1.22 1.40
376 NASDAQ OPK Mon, Dec 8, 2008 1.40 1.65 1.35 1.65
375 NASDAQ OPK Fri, Dec 5, 2008 1.25 1.45 1.20 1.36
374 NASDAQ OPK Thu, Dec 4, 2008 1.40 1.62 1.34 1.34
373 NASDAQ OPK Wed, Dec 3, 2008 1.29 1.47 1.29 1.35
372 NASDAQ OPK Tue, Dec 2, 2008 1.20 1.37 1.20 1.34
371 NASDAQ OPK Mon, Dec 1, 2008 1.48 1.48 1.16 1.16
370 NASDAQ OPK Fri, Nov 28, 2008 1.48 1.61 1.42 1.55
369 NASDAQ OPK Wed, Nov 26, 2008 1.32 1.53 1.20 1.53
368 NASDAQ OPK Tue, Nov 25, 2008 1.34 1.38 1.21 1.37
367 NASDAQ OPK Mon, Nov 24, 2008 1.10 1.34 1.10 1.34
366 NASDAQ OPK Fri, Nov 21, 2008 1.25 1.25 1.14 1.22
365 NASDAQ OPK Thu, Nov 20, 2008 1.08 1.25 1.08 1.24
364 NASDAQ OPK Wed, Nov 19, 2008 1.15 1.25 1.08 1.08
363 NASDAQ OPK Tue, Nov 18, 2008 1.18 1.25 1.16 1.21
362 NASDAQ OPK Mon, Nov 17, 2008 1.16 1.25 1.08 1.17
361 NASDAQ OPK Fri, Nov 14, 2008 1.21 1.29 1.05 1.17
360 NASDAQ OPK Thu, Nov 13, 2008 1.17 1.33 1.01 1.30
359 NASDAQ OPK Wed, Nov 12, 2008 1.20 1.42 1.20 1.20
358 NASDAQ OPK Tue, Nov 11, 2008 1.27 1.43 1.25 1.30
357 NASDAQ OPK Mon, Nov 10, 2008 1.32 1.39 1.25 1.27
356 NASDAQ OPK Fri, Nov 7, 2008 1.40 1.41 1.30 1.35
355 NASDAQ OPK Thu, Nov 6, 2008 1.44 1.48 1.35 1.35
354 NASDAQ OPK Wed, Nov 5, 2008 1.49 1.51 1.45 1.45
353 NASDAQ OPK Tue, Nov 4, 2008 1.55 1.55 1.41 1.51
352 NASDAQ OPK Mon, Nov 3, 2008 1.58 1.60 1.45 1.47
351 NASDAQ OPK Fri, Oct 31, 2008 1.41 1.55 1.35 1.53
350 NASDAQ OPK Thu, Oct 30, 2008 1.25 1.37 1.21 1.37
349 NASDAQ OPK Wed, Oct 29, 2008 1.27 1.30 1.11 1.21
348 NASDAQ OPK Tue, Oct 28, 2008 1.01 1.27 1.01 1.27
347 NASDAQ OPK Mon, Oct 27, 2008 1.25 1.30 1.10 1.11
346 NASDAQ OPK Fri, Oct 24, 2008 1.24 1.30 1.21 1.28
345 NASDAQ OPK Thu, Oct 23, 2008 1.32 1.38 1.26 1.32
344 NASDAQ OPK Wed, Oct 22, 2008 1.43 1.43 1.26 1.26
343 NASDAQ OPK Tue, Oct 21, 2008 1.46 1.60 1.35 1.49
342 NASDAQ OPK Mon, Oct 20, 2008 1.63 1.63 1.40 1.54
341 NASDAQ OPK Fri, Oct 17, 2008 1.58 1.70 1.41 1.52
340 NASDAQ OPK Thu, Oct 16, 2008 1.24 1.60 1.24 1.60
339 NASDAQ OPK Wed, Oct 15, 2008 1.54 1.56 1.22 1.22
338 NASDAQ OPK Tue, Oct 14, 2008 1.65 1.65 1.40 1.54
337 NASDAQ OPK Mon, Oct 13, 2008 1.74 1.80 1.42 1.61
336 NASDAQ OPK Fri, Oct 10, 2008 1.21 1.68 1.16 1.68
335 NASDAQ OPK Thu, Oct 9, 2008 1.45 1.45 1.21 1.21
334 NASDAQ OPK Wed, Oct 8, 2008 1.38 1.51 1.36 1.41
333 NASDAQ OPK Tue, Oct 7, 2008 1.53 1.59 1.38 1.39
332 NASDAQ OPK Mon, Oct 6, 2008 1.41 1.54 1.35 1.45
331 NASDAQ OPK Fri, Oct 3, 2008 1.58 1.75 1.45 1.45
330 NASDAQ OPK Thu, Oct 2, 2008 1.61 1.74 1.48 1.54
329 NASDAQ OPK Wed, Oct 1, 2008 1.65 1.79 1.61 1.61
328 NASDAQ OPK Tue, Sep 30, 2008 1.84 1.84 1.66 1.75
327 NASDAQ OPK Mon, Sep 29, 2008 1.65 1.69 1.44 1.69
326 NASDAQ OPK Fri, Sep 26, 2008 1.66 1.67 1.52 1.62
325 NASDAQ OPK Thu, Sep 25, 2008 1.75 1.75 1.60 1.68
324 NASDAQ OPK Wed, Sep 24, 2008 1.65 2.19 1.63 1.64
323 NASDAQ OPK Tue, Sep 23, 2008 1.68 1.81 1.66 1.73
322 NASDAQ OPK Mon, Sep 22, 2008 2.22 2.22 1.66 1.71
321 NASDAQ OPK Fri, Sep 19, 2008 2.39 2.39 1.73 2.05
320 NASDAQ OPK Thu, Sep 18, 2008 1.45 1.99 1.43 1.99
319 NASDAQ OPK Wed, Sep 17, 2008 1.84 1.84 1.48 1.49
318 NASDAQ OPK Tue, Sep 16, 2008 1.51 1.71 0.87 1.71
317 NASDAQ OPK Mon, Sep 15, 2008 1.63 1.85 1.61 1.61
316 NASDAQ OPK Fri, Sep 12, 2008 1.65 1.83 1.65 1.77
315 NASDAQ OPK Thu, Sep 11, 2008 1.61 1.68 1.55 1.65
314 NASDAQ OPK Wed, Sep 10, 2008 1.82 1.82 1.60 1.60
313 NASDAQ OPK Tue, Sep 9, 2008 2.01 2.02 1.78 1.78
312 NASDAQ OPK Mon, Sep 8, 2008 1.97 1.97 1.76 1.89
311 NASDAQ OPK Fri, Sep 5, 2008 2.02 2.02 1.82 1.87
310 NASDAQ OPK Thu, Sep 4, 2008 2.05 2.15 1.96 1.98
309 NASDAQ OPK Wed, Sep 3, 2008 1.90 2.02 1.90 2.02
308 NASDAQ OPK Tue, Sep 2, 2008 2.05 2.18 1.87 1.93
307 NASDAQ OPK Fri, Aug 29, 2008 1.93 2.11 1.86 2.09
306 NASDAQ OPK Thu, Aug 28, 2008 1.86 1.99 1.83 1.92
305 NASDAQ OPK Wed, Aug 27, 2008 1.73 1.83 1.70 1.82
304 NASDAQ OPK Tue, Aug 26, 2008 1.75 1.78 1.75 1.76
303 NASDAQ OPK Mon, Aug 25, 2008 1.88 1.88 1.74 1.79
302 NASDAQ OPK Thu, Aug 21, 2008 1.93 1.95 1.80 1.83
301 NASDAQ OPK Wed, Aug 20, 2008 1.76 1.83 1.75 1.81
300 NASDAQ OPK Tue, Aug 19, 2008 1.87 1.96 1.75 1.76
299 NASDAQ OPK Mon, Aug 18, 2008 1.95 1.98 1.82 1.87
298 NASDAQ OPK Fri, Aug 15, 2008 2.09 2.13 1.92 1.99
297 NASDAQ OPK Thu, Aug 14, 2008 1.90 2.06 1.90 2.06
296 NASDAQ OPK Wed, Aug 13, 2008 1.98 2.00 1.82 1.98
295 NASDAQ OPK Tue, Aug 12, 2008 2.00 2.00 1.90 1.96
294 NASDAQ OPK Mon, Aug 11, 2008 1.85 1.95 1.80 1.95
293 NASDAQ OPK Fri, Aug 8, 2008 1.83 1.98 1.79 1.85
292 NASDAQ OPK Thu, Aug 7, 2008 1.97 1.97 1.77 1.83
291 NASDAQ OPK Wed, Aug 6, 2008 1.82 2.00 1.82 1.97
290 NASDAQ OPK Tue, Aug 5, 2008 1.82 1.89 1.78 1.79
289 NASDAQ OPK Mon, Aug 4, 2008 1.80 1.85 1.66 1.78
288 NASDAQ OPK Fri, Aug 1, 2008 1.85 1.85 1.77 1.78
287 NASDAQ OPK Thu, Jul 31, 2008 1.78 1.90 1.74 1.85
286 NASDAQ OPK Wed, Jul 30, 2008 1.75 1.80 1.70 1.79
285 NASDAQ OPK Tue, Jul 29, 2008 1.65 1.75 1.63 1.75
284 NASDAQ OPK Mon, Jul 28, 2008 1.90 1.90 1.64 1.66
283 NASDAQ OPK Fri, Jul 25, 2008 1.84 1.86 1.80 1.86
282 NASDAQ OPK Thu, Jul 24, 2008 1.93 1.93 1.76 1.80
281 NASDAQ OPK Wed, Jul 23, 2008 2.01 2.01 1.83 1.89
280 NASDAQ OPK Tue, Jul 22, 2008 1.63 1.84 1.59 1.81
279 NASDAQ OPK Mon, Jul 21, 2008 1.78 1.80 1.64 1.69
278 NASDAQ OPK Fri, Jul 18, 2008 1.75 1.91 1.75 1.80
277 NASDAQ OPK Thu, Jul 17, 2008 1.53 1.75 1.50 1.75
276 NASDAQ OPK Wed, Jul 16, 2008 1.48 1.55 1.46 1.53
275 NASDAQ OPK Tue, Jul 15, 2008 1.35 1.48 1.34 1.47
274 NASDAQ OPK Mon, Jul 14, 2008 1.47 1.48 1.35 1.39
273 NASDAQ OPK Fri, Jul 11, 2008 1.32 1.70 1.32 1.44
272 NASDAQ OPK Thu, Jul 10, 2008 1.41 1.41 1.35 1.37
271 NASDAQ OPK Wed, Jul 9, 2008 1.49 1.49 1.40 1.41
270 NASDAQ OPK Tue, Jul 8, 2008 1.39 1.58 1.30 1.51
269 NASDAQ OPK Mon, Jul 7, 2008 1.30 1.37 1.30 1.30
268 NASDAQ OPK Thu, Jul 3, 2008 1.21 1.41 1.18 1.27
267 NASDAQ OPK Wed, Jul 2, 2008 1.38 1.38 1.13 1.21
266 NASDAQ OPK Tue, Jul 1, 2008 1.50 1.55 1.34 1.36
265 NASDAQ OPK Mon, Jun 30, 2008 1.69 1.69 1.51 1.52
264 NASDAQ OPK Fri, Jun 27, 2008 1.69 1.70 1.47 1.63
263 NASDAQ OPK Thu, Jun 26, 2008 1.51 1.75 1.51 1.61
262 NASDAQ OPK Wed, Jun 25, 2008 1.53 1.75 1.46 1.66
261 NASDAQ OPK Tue, Jun 24, 2008 1.65 1.66 1.50 1.52
260 NASDAQ OPK Mon, Jun 23, 2008 1.74 1.79 1.62 1.63
259 NASDAQ OPK Fri, Jun 20, 2008 1.76 1.78 1.71 1.71
258 NASDAQ OPK Thu, Jun 19, 2008 1.79 1.82 1.73 1.78
257 NASDAQ OPK Wed, Jun 18, 2008 1.87 1.87 1.79 1.80
256 NASDAQ OPK Tue, Jun 17, 2008 1.85 1.90 1.80 1.85
255 NASDAQ OPK Mon, Jun 16, 2008 1.79 1.93 1.76 1.83
254 NASDAQ OPK Fri, Jun 13, 2008 1.78 1.81 1.77 1.77
253 NASDAQ OPK Thu, Jun 12, 2008 1.75 1.84 1.75 1.78
252 NASDAQ OPK Wed, Jun 11, 2008 1.75 1.82 1.75 1.79
251 NASDAQ OPK Tue, Jun 10, 2008 1.78 1.84 1.76 1.79
250 NASDAQ OPK Mon, Jun 9, 2008 2.05 2.05 1.78 1.82
249 NASDAQ OPK Fri, Jun 6, 2008 2.00 2.00 1.88 1.92
248 NASDAQ OPK Thu, Jun 5, 2008 1.98 2.02 1.93 1.98
247 NASDAQ OPK Wed, Jun 4, 2008 2.18 2.18 1.93 1.95
246 NASDAQ OPK Tue, Jun 3, 2008 2.40 2.40 2.15 2.15
245 NASDAQ OPK Mon, Jun 2, 2008 2.50 2.50 2.25 2.30
244 NASDAQ OPK Fri, May 30, 2008 2.46 2.84 2.30 2.30
243 NASDAQ OPK Thu, May 29, 2008 2.43 2.44 2.32 2.40
242 NASDAQ OPK Wed, May 28, 2008 2.47 2.63 2.34 2.40
241 NASDAQ OPK Tue, May 27, 2008 2.50 2.55 2.42 2.50
240 NASDAQ OPK Fri, May 23, 2008 2.50 2.50 2.39 2.45
239 NASDAQ OPK Thu, May 22, 2008 2.29 2.55 2.27 2.45
238 NASDAQ OPK Wed, May 21, 2008 2.26 2.30 2.25 2.28
237 NASDAQ OPK Tue, May 20, 2008 2.30 2.30 2.14 2.28
236 NASDAQ OPK Mon, May 19, 2008 2.41 2.50 2.30 2.32
235 NASDAQ OPK Fri, May 16, 2008 2.30 2.42 2.26 2.41
234 NASDAQ OPK Thu, May 15, 2008 2.28 2.31 2.24 2.25
233 NASDAQ OPK Wed, May 14, 2008 2.01 2.35 1.98 2.28
232 NASDAQ OPK Tue, May 13, 2008 1.82 2.08 1.75 1.98
231 NASDAQ OPK Mon, May 12, 2008 1.90 1.90 1.77 1.80
230 NASDAQ OPK Fri, May 9, 2008 1.88 1.92 1.80 1.88
229 NASDAQ OPK Thu, May 8, 2008 1.70 2.03 1.69 1.92
228 NASDAQ OPK Wed, May 7, 2008 1.63 1.70 1.63 1.68
227 NASDAQ OPK Tue, May 6, 2008 1.66 1.67 1.63 1.63
226 NASDAQ OPK Mon, May 5, 2008 1.70 1.70 1.63 1.64
225 NASDAQ OPK Fri, May 2, 2008 1.65 1.68 1.63 1.68
224 NASDAQ OPK Thu, May 1, 2008 1.65 1.67 1.63 1.65
223 NASDAQ OPK Wed, Apr 30, 2008 1.55 1.69 1.55 1.67
222 NASDAQ OPK Tue, Apr 29, 2008 1.62 1.66 1.56 1.56
221 NASDAQ OPK Mon, Apr 28, 2008 1.70 1.70 1.58 1.65
220 NASDAQ OPK Fri, Apr 25, 2008 1.70 1.72 1.66 1.70
219 NASDAQ OPK Thu, Apr 24, 2008 1.74 1.74 1.62 1.71
218 NASDAQ OPK Wed, Apr 23, 2008 1.70 1.77 1.70 1.75
217 NASDAQ OPK Tue, Apr 22, 2008 1.76 1.76 1.71 1.70
216 NASDAQ OPK Mon, Apr 21, 2008 1.75 1.84 1.72 1.74
215 NASDAQ OPK Fri, Apr 18, 2008 1.76 1.78 1.69 1.75
214 NASDAQ OPK Thu, Apr 17, 2008 1.75 1.78 1.72 1.77
213 NASDAQ OPK Wed, Apr 16, 2008 1.70 1.72 1.65 1.72
212 NASDAQ OPK Tue, Apr 15, 2008 1.81 1.88 1.71 1.72
211 NASDAQ OPK Mon, Apr 14, 2008 1.70 1.75 1.51 1.75
210 NASDAQ OPK Fri, Apr 11, 2008 1.79 1.80 1.55 1.68
209 NASDAQ OPK Thu, Apr 10, 2008 1.89 1.90 1.77 1.77
208 NASDAQ OPK Wed, Apr 9, 2008 1.98 1.98 1.82 1.89
207 NASDAQ OPK Tue, Apr 8, 2008 2.00 2.00 1.94 1.96
206 NASDAQ OPK Mon, Apr 7, 2008 2.12 2.22 1.97 2.01
205 NASDAQ OPK Fri, Apr 4, 2008 2.06 2.10 1.91 2.08
204 NASDAQ OPK Thu, Apr 3, 2008 2.05 2.16 1.96 2.00
203 NASDAQ OPK Wed, Apr 2, 2008 2.17 2.17 2.01 2.06
202 NASDAQ OPK Tue, Apr 1, 2008 2.05 2.30 2.00 2.19
201 NASDAQ OPK Mon, Mar 31, 2008 2.02 2.17 2.00 2.06
200 NASDAQ OPK Fri, Mar 28, 2008 2.36 2.36 2.06 2.11
199 NASDAQ OPK Thu, Mar 27, 2008 2.24 2.29 2.10 2.26
198 NASDAQ OPK Wed, Mar 26, 2008 2.23 2.24 2.20 2.24
197 NASDAQ OPK Tue, Mar 25, 2008 2.30 2.34 2.19 2.24
196 NASDAQ OPK Mon, Mar 24, 2008 2.18 2.30 2.12 2.30
195 NASDAQ OPK Thu, Mar 20, 2008 2.10 2.20 2.08 2.12
194 NASDAQ OPK Wed, Mar 19, 2008 2.28 2.35 2.23 2.23
193 NASDAQ OPK Tue, Mar 18, 2008 2.31 2.33 2.20 2.28
192 NASDAQ OPK Mon, Mar 17, 2008 2.40 2.40 2.15 2.19
191 NASDAQ OPK Fri, Mar 14, 2008 2.50 2.50 2.37 2.40
190 NASDAQ OPK Thu, Mar 13, 2008 2.26 2.53 2.26 2.45
189 NASDAQ OPK Wed, Mar 12, 2008 2.60 2.60 2.36 2.47
188 NASDAQ OPK Tue, Mar 11, 2008 2.20 2.65 2.15 2.61
187 NASDAQ OPK Mon, Mar 10, 2008 2.53 2.55 2.15 2.24
186 NASDAQ OPK Fri, Mar 7, 2008 2.58 2.69 2.50 2.53
185 NASDAQ OPK Thu, Mar 6, 2008 2.60 2.61 2.55 2.59
184 NASDAQ OPK Wed, Mar 5, 2008 2.71 2.71 2.54 2.55
183 NASDAQ OPK Tue, Mar 4, 2008 2.71 2.71 2.56 2.61
182 NASDAQ OPK Mon, Mar 3, 2008 2.62 2.70 2.62 2.68
181 NASDAQ OPK Fri, Feb 29, 2008 2.75 2.75 2.60 2.62
180 NASDAQ OPK Thu, Feb 28, 2008 2.51 2.63 2.51 2.60
179 NASDAQ OPK Wed, Feb 27, 2008 2.53 2.60 2.50 2.55
178 NASDAQ OPK Tue, Feb 26, 2008 2.69 2.69 2.51 2.60
177 NASDAQ OPK Mon, Feb 25, 2008 2.72 2.80 2.51 2.64
176 NASDAQ OPK Fri, Feb 22, 2008 2.71 2.71 2.51 2.63
175 NASDAQ OPK Thu, Feb 21, 2008 2.55 2.65 2.55 2.61
174 NASDAQ OPK Wed, Feb 20, 2008 2.75 2.75 2.50 2.58
173 NASDAQ OPK Tue, Feb 19, 2008 2.73 2.78 2.73 2.73
172 NASDAQ OPK Fri, Feb 15, 2008 2.80 2.80 2.72 2.75
171 NASDAQ OPK Thu, Feb 14, 2008 2.72 2.83 2.72 2.79
170 NASDAQ OPK Wed, Feb 13, 2008 2.75 2.85 2.75 2.79
169 NASDAQ OPK Tue, Feb 12, 2008 2.81 2.81 2.70 2.75
168 NASDAQ OPK Mon, Feb 11, 2008 2.98 2.98 2.80 2.82
167 NASDAQ OPK Fri, Feb 8, 2008 2.81 2.87 2.80 2.84
166 NASDAQ OPK Thu, Feb 7, 2008 2.90 2.90 2.81 2.82
165 NASDAQ OPK Wed, Feb 6, 2008 2.85 2.93 2.85 2.88
164 NASDAQ OPK Tue, Feb 5, 2008 3.00 3.00 2.85 2.90
163 NASDAQ OPK Mon, Feb 4, 2008 2.99 3.04 2.90 3.00
162 NASDAQ OPK Fri, Feb 1, 2008 2.90 2.90 2.78 2.85
161 NASDAQ OPK Thu, Jan 31, 2008 2.84 3.00 2.77 2.95
160 NASDAQ OPK Wed, Jan 30, 2008 2.95 3.00 2.82 2.85
159 NASDAQ OPK Tue, Jan 29, 2008 2.90 3.10 2.90 3.10
158 NASDAQ OPK Mon, Jan 28, 2008 2.78 2.90 2.75 2.88
157 NASDAQ OPK Fri, Jan 25, 2008 2.82 2.83 2.78 2.78
156 NASDAQ OPK Thu, Jan 24, 2008 2.80 2.85 2.76 2.78
155 NASDAQ OPK Wed, Jan 23, 2008 2.79 2.90 2.75 2.90
154 NASDAQ OPK Tue, Jan 22, 2008 2.66 2.88 2.66 2.73
153 NASDAQ OPK Fri, Jan 18, 2008 2.94 2.97 2.90 2.91
152 NASDAQ OPK Thu, Jan 17, 2008 2.96 2.97 2.90 2.97
151 NASDAQ OPK Wed, Jan 16, 2008 3.05 3.05 2.85 2.95
150 NASDAQ OPK Tue, Jan 15, 2008 3.37 3.37 3.00 3.06
149 NASDAQ OPK Mon, Jan 14, 2008 3.15 3.25 2.92 3.24
148 NASDAQ OPK Fri, Jan 11, 2008 3.09 3.39 3.00 3.04
147 NASDAQ OPK Thu, Jan 10, 2008 2.80 3.90 2.80 3.40
146 NASDAQ OPK Wed, Jan 9, 2008 2.88 2.88 2.72 2.79
145 NASDAQ OPK Tue, Jan 8, 2008 2.86 2.91 2.75 2.79
144 NASDAQ OPK Mon, Jan 7, 2008 3.14 3.14 2.75 2.84
143 NASDAQ OPK Fri, Jan 4, 2008 2.88 2.89 2.72 2.89
142 NASDAQ OPK Thu, Jan 3, 2008 2.86 2.99 2.83 2.90
141 NASDAQ OPK Wed, Jan 2, 2008 2.90 2.91 2.62 2.89
140 NASDAQ OPK Mon, Dec 31, 2007 2.89 2.91 2.75 2.85
139 NASDAQ OPK Fri, Dec 28, 2007 2.95 3.05 2.80 2.85
138 NASDAQ OPK Thu, Dec 27, 2007 3.07 3.10 2.85 2.95
137 NASDAQ OPK Wed, Dec 26, 2007 3.01 3.29 3.00 3.05
136 NASDAQ OPK Mon, Dec 24, 2007 3.40 3.40 3.00 3.18
135 NASDAQ OPK Fri, Dec 21, 2007 2.90 3.35 2.90 3.35
134 NASDAQ OPK Thu, Dec 20, 2007 3.04 3.04 2.88 2.89
133 NASDAQ OPK Wed, Dec 19, 2007 2.89 3.05 2.86 2.99
132 NASDAQ OPK Tue, Dec 18, 2007 3.02 3.17 2.85 2.98
131 NASDAQ OPK Mon, Dec 17, 2007 3.07 3.17 3.07 3.10
130 NASDAQ OPK Fri, Dec 14, 2007 3.25 3.35 3.03 3.12
129 NASDAQ OPK Thu, Dec 13, 2007 3.10 3.28 3.10 3.25
128 NASDAQ OPK Wed, Dec 12, 2007 3.60 3.60 3.04 3.05
127 NASDAQ OPK Tue, Dec 11, 2007 3.35 3.40 3.11 3.16
126 NASDAQ OPK Mon, Dec 10, 2007 3.15 3.35 3.15 3.33
125 NASDAQ OPK Fri, Dec 7, 2007 3.26 3.60 3.20 3.24
124 NASDAQ OPK Thu, Dec 6, 2007 3.03 3.27 2.99 3.22
123 NASDAQ OPK Wed, Dec 5, 2007 2.80 3.05 2.66 2.96
122 NASDAQ OPK Tue, Dec 4, 2007 2.60 2.75 2.60 2.70
121 NASDAQ OPK Mon, Dec 3, 2007 3.24 3.24 2.50 2.66
120 NASDAQ OPK Fri, Nov 30, 2007 3.50 3.51 3.17 3.20
119 NASDAQ OPK Thu, Nov 29, 2007 3.16 3.56 3.10 3.48
118 NASDAQ OPK Wed, Nov 28, 2007 3.20 3.26 3.12 3.22
117 NASDAQ OPK Tue, Nov 27, 2007 3.71 3.71 2.80 3.06
116 NASDAQ OPK Mon, Nov 26, 2007 3.50 3.53 3.40 3.40
115 NASDAQ OPK Fri, Nov 23, 2007 3.86 4.06 3.47 3.47
114 NASDAQ OPK Wed, Nov 21, 2007 3.50 3.54 3.45 3.54
113 NASDAQ OPK Tue, Nov 20, 2007 3.55 3.56 3.45 3.53
112 NASDAQ OPK Mon, Nov 19, 2007 3.70 3.70 3.47 3.50
111 NASDAQ OPK Fri, Nov 16, 2007 3.77 3.77 3.65 3.70
110 NASDAQ OPK Thu, Nov 15, 2007 3.91 3.96 3.75 3.75
109 NASDAQ OPK Wed, Nov 14, 2007 3.98 3.98 3.85 3.88
108 NASDAQ OPK Tue, Nov 13, 2007 3.54 3.95 3.54 3.90
107 NASDAQ OPK Mon, Nov 12, 2007 3.70 3.75 3.51 3.51
106 NASDAQ OPK Fri, Nov 9, 2007 4.00 4.00 3.72 3.76
105 NASDAQ OPK Thu, Nov 8, 2007 4.09 4.09 3.94 4.00
104 NASDAQ OPK Wed, Nov 7, 2007 4.00 4.07 3.90 4.07
103 NASDAQ OPK Tue, Nov 6, 2007 4.15 4.15 3.96 4.07
102 NASDAQ OPK Mon, Nov 5, 2007 4.00 4.15 4.00 4.05
101 NASDAQ OPK Fri, Nov 2, 2007 4.24 4.24 4.11 4.20
100 NASDAQ OPK Thu, Nov 1, 2007 4.24 4.37 4.19 4.22
99 NASDAQ OPK Wed, Oct 31, 2007 4.20 4.27 4.17 4.23
98 NASDAQ OPK Tue, Oct 30, 2007 4.38 4.38 4.21 4.22
97 NASDAQ OPK Mon, Oct 29, 2007 4.50 4.50 4.21 4.32
96 NASDAQ OPK Fri, Oct 26, 2007 4.30 4.34 4.17 4.33
95 NASDAQ OPK Thu, Oct 25, 2007 4.30 4.30 4.20 4.30
94 NASDAQ OPK Wed, Oct 24, 2007 4.18 4.30 4.18 4.26
93 NASDAQ OPK Tue, Oct 23, 2007 4.14 4.22 4.11 4.19
92 NASDAQ OPK Mon, Oct 22, 2007 4.25 4.25 4.10 4.17
91 NASDAQ OPK Fri, Oct 19, 2007 4.40 4.40 4.20 4.30
90 NASDAQ OPK Thu, Oct 18, 2007 4.20 4.40 4.18 4.40
89 NASDAQ OPK Wed, Oct 17, 2007 4.21 4.26 4.17 4.20
88 NASDAQ OPK Tue, Oct 16, 2007 4.21 4.43 4.10 4.17
87 NASDAQ OPK Mon, Oct 15, 2007 4.18 4.28 4.11 4.15
86 NASDAQ OPK Fri, Oct 12, 2007 4.23 4.28 4.15 4.15
85 NASDAQ OPK Thu, Oct 11, 2007 4.40 4.53 4.10 4.23
84 NASDAQ OPK Wed, Oct 10, 2007 4.05 4.36 3.91 4.29
83 NASDAQ OPK Tue, Oct 9, 2007 4.04 4.05 3.94 4.05
82 NASDAQ OPK Mon, Oct 8, 2007 3.97 4.05 3.97 4.04
81 NASDAQ OPK Fri, Oct 5, 2007 4.00 4.05 3.98 4.05
80 NASDAQ OPK Thu, Oct 4, 2007 3.96 4.01 3.95 4.00
79 NASDAQ OPK Wed, Oct 3, 2007 3.96 4.04 3.96 3.98
78 NASDAQ OPK Tue, Oct 2, 2007 4.00 4.03 3.90 3.94
77 NASDAQ OPK Mon, Oct 1, 2007 3.98 4.08 3.98 4.01
76 NASDAQ OPK Fri, Sep 28, 2007 4.00 4.05 3.99 4.04
75 NASDAQ OPK Thu, Sep 27, 2007 4.00 4.05 4.00 4.01
74 NASDAQ OPK Wed, Sep 26, 2007 4.01 4.08 3.99 3.99
73 NASDAQ OPK Tue, Sep 25, 2007 4.10 4.19 4.00 4.00
72 NASDAQ OPK Mon, Sep 24, 2007 4.06 4.13 4.01 4.13
71 NASDAQ OPK Fri, Sep 21, 2007 4.09 4.15 4.01 4.04
70 NASDAQ OPK Thu, Sep 20, 2007 4.00 4.25 4.00 4.10
69 NASDAQ OPK Wed, Sep 19, 2007 4.10 4.25 4.10 4.15
68 NASDAQ OPK Tue, Sep 18, 2007 4.00 4.07 4.00 4.06
67 NASDAQ OPK Mon, Sep 17, 2007 4.08 4.08 3.90 4.05
66 NASDAQ OPK Fri, Sep 14, 2007 4.09 4.09 4.01 4.08
65 NASDAQ OPK Thu, Sep 13, 2007 4.06 4.11 4.04 4.06
64 NASDAQ OPK Wed, Sep 12, 2007 4.00 4.14 4.00 4.02
63 NASDAQ OPK Tue, Sep 11, 2007 4.04 4.10 3.97 3.98
62 NASDAQ OPK Mon, Sep 10, 2007 4.09 4.09 4.01 4.04
61 NASDAQ OPK Fri, Sep 7, 2007 4.07 4.10 3.58 4.10
60 NASDAQ OPK Thu, Sep 6, 2007 4.15 4.18 4.05 4.14
59 NASDAQ OPK Wed, Sep 5, 2007 4.19 4.19 4.04 4.12
58 NASDAQ OPK Tue, Sep 4, 2007 4.20 4.20 3.97 4.19
57 NASDAQ OPK Fri, Aug 31, 2007 4.15 4.20 3.97 4.20
56 NASDAQ OPK Thu, Aug 30, 2007 4.08 4.21 3.97 4.16
55 NASDAQ OPK Wed, Aug 29, 2007 4.20 4.20 4.06 4.08
54 NASDAQ OPK Tue, Aug 28, 2007 4.21 4.24 3.97 4.18
53 NASDAQ OPK Mon, Aug 27, 2007 4.45 4.45 4.20 4.21
52 NASDAQ OPK Fri, Aug 24, 2007 4.40 4.40 4.12 4.35
51 NASDAQ OPK Thu, Aug 23, 2007 4.25 4.48 4.22 4.36
50 NASDAQ OPK Wed, Aug 22, 2007 4.15 4.25 4.10 4.25
49 NASDAQ OPK Tue, Aug 21, 2007 4.15 4.18 4.08 4.10
48 NASDAQ OPK Mon, Aug 20, 2007 4.30 4.30 4.02 4.10
47 NASDAQ OPK Fri, Aug 17, 2007 3.80 4.45 3.80 4.45
46 NASDAQ OPK Thu, Aug 16, 2007 3.70 3.97 3.51 3.93
45 NASDAQ OPK Wed, Aug 15, 2007 3.97 3.98 3.76 3.80
44 NASDAQ OPK Tue, Aug 14, 2007 4.00 4.00 3.90 3.92
43 NASDAQ OPK Mon, Aug 13, 2007 3.95 4.04 3.90 3.97
42 NASDAQ OPK Fri, Aug 10, 2007 3.97 3.99 3.79 3.87
41 NASDAQ OPK Thu, Aug 9, 2007 4.00 4.00 3.95 4.00
40 NASDAQ OPK Wed, Aug 8, 2007 4.24 4.24 3.95 4.02
39 NASDAQ OPK Tue, Aug 7, 2007 4.00 4.12 3.99 4.11
38 NASDAQ OPK Mon, Aug 6, 2007 3.95 3.95 3.50 3.95
37 NASDAQ OPK Fri, Aug 3, 2007 4.13 4.13 3.90 4.00
36 NASDAQ OPK Thu, Aug 2, 2007 4.30 4.30 4.00 4.19
35 NASDAQ OPK Wed, Aug 1, 2007 4.18 4.27 4.10 4.20
34 NASDAQ OPK Tue, Jul 31, 2007 4.45 4.52 4.20 4.22
33 NASDAQ OPK Mon, Jul 30, 2007 4.60 4.64 4.22 4.39
32 NASDAQ OPK Fri, Jul 27, 2007 4.41 4.45 4.17 4.45
31 NASDAQ OPK Thu, Jul 26, 2007 4.25 4.49 4.20 4.41
30 NASDAQ OPK Wed, Jul 25, 2007 4.60 4.61 4.10 4.18
29 NASDAQ OPK Tue, Jul 24, 2007 4.87 4.94 4.34 4.50
28 NASDAQ OPK Mon, Jul 23, 2007 4.25 4.87 4.17 4.87
27 NASDAQ OPK Fri, Jul 20, 2007 4.00 4.04 3.93 4.04
26 NASDAQ OPK Thu, Jul 19, 2007 4.02 4.05 3.92 3.92
25 NASDAQ OPK Wed, Jul 18, 2007 4.01 4.14 3.92 4.02
24 NASDAQ OPK Tue, Jul 17, 2007 4.15 4.15 4.00 4.05
23 NASDAQ OPK Mon, Jul 16, 2007 3.90 4.13 3.90 4.01
22 NASDAQ OPK Fri, Jul 13, 2007 3.75 3.93 3.69 3.86
21 NASDAQ OPK Thu, Jul 12, 2007 3.65 3.80 3.60 3.72
20 NASDAQ OPK Wed, Jul 11, 2007 3.56 3.70 3.45 3.54
19 NASDAQ OPK Tue, Jul 10, 2007 3.73 3.75 3.36 3.36
18 NASDAQ OPK Mon, Jul 9, 2007 3.75 3.80 3.60 3.66
17 NASDAQ OPK Fri, Jul 6, 2007 3.78 3.80 3.52 3.55
16 NASDAQ OPK Thu, Jul 5, 2007 3.75 3.80 3.67 3.78
15 NASDAQ OPK Tue, Jul 3, 2007 3.80 3.83 3.75 3.75
14 NASDAQ OPK Mon, Jul 2, 2007 3.67 3.80 3.64 3.80
13 NASDAQ OPK Fri, Jun 29, 2007 3.57 3.68 3.55 3.65
12 NASDAQ OPK Thu, Jun 28, 2007 3.51 3.60 3.50 3.57
11 NASDAQ OPK Wed, Jun 27, 2007 3.59 3.59 3.50 3.55
10 NASDAQ OPK Tue, Jun 26, 2007 3.55 3.59 3.42 3.54
9 NASDAQ OPK Mon, Jun 25, 2007 3.90 3.95 3.72 3.72
8 NASDAQ OPK Fri, Jun 22, 2007 3.90 3.91 3.80 3.85
7 NASDAQ OPK Thu, Jun 21, 2007 4.00 4.00 3.94 3.95
6 NASDAQ OPK Wed, Jun 20, 2007 4.05 4.09 3.99 3.99
5 NASDAQ OPK Tue, Jun 19, 2007 4.05 4.20 3.88 4.02
4 NASDAQ OPK Mon, Jun 18, 2007 4.05 4.05 4.01 4.05
3 NASDAQ OPK Fri, Jun 15, 2007 4.10 4.15 4.00 4.01
2 NASDAQ OPK Thu, Jun 14, 2007 4.22 4.22 4.00 4.01
1 NASDAQ OPK Wed, Jun 13, 2007 4.00 4.20 4.00 4.15
# Exchange Symbol Date Open High Low Close

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