OPK Options History — December 2025

In December 2025, OPK traded between $1.25 and $1.38. ATM implied volatility averaged 57.2%, placing in the 14.1% IV rank vs the trailing year. The 30-day expected move averaged 16.6%. IV traded above realized volatility by 24.2% (HV 20d: 33.0%). Max pain ranged from $1.00 to $1.00. Net GEX was positive for 22 of 22 trading days. Term structure was in contango for 17 of 22 days. Put/call ratio averaged 0.46.

Notable Days

  • 2025-12-29: Highest Volume — 713 contracts
  • 2025-12-31: Largest IV spike — 43.9% change
  • 2025-12-31: Highest IV Rank — 32.3%
  • 2025-12-31: Largest Expected Move — 26.3%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$1.33$1.25$1.38$1.31$1.25
Max Pain$1.00$1.00$1.00$1.00$1.00
ATM IV57.2%36.9%91.8%51.9%91.8%
Expected Move16.6%10.6%26.3%14.9%26.3%
HV 20d33.0%28.2%36.1%28.2%33.0%
HV 60d37.5%36.0%39.4%39.2%36.6%
IV Rank14.1%3.4%32.3%11.3%32.3%
IV Percentile49.8%6.7%88.1%43.3%88.1%
Term Structure36.4%-23.2%302.9%18.9%137.2%
VWIV71.5%43.2%105.9%60.0%62.7%
Skew 25d47.9%-9.5%212.9%16.4%5.3%
Skew 10d58.6%-14.7%306.3%8.0%0.2%
Call IV 25d55.5%39.3%71.8%55.6%67.6%
Put IV 25d103.4%57.9%278.4%72.0%72.9%
Bid-Ask Spread %92.4755.92114.9675.0480.38
Gamma HHI0.590.500.690.520.57
Net GEX54.4K40.2K66.6K50.2K40.2K
Net DEX-1.9M-2.3M-1.4M-2.2M-1.4M
Net VEX-11.6K-13.5K-9.4K-13.5K-9.5K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.460.003.103.100.01
Total Volume220.04535713119261
Total OI57,239.27353,50759,17958,38354,736

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2025-12-01$1.31$1.0051.9%14.9%28.2%11.3%0.0%16.4%18.9%50.2K-2.2M-13.5K3.1075.04N/AN/A299055,2173,166
2025-12-02$1.35$1.0050.9%14.6%29.3%10.8%60.0%30.1%24.8%51.8K-2.2M-13.3K0.2272.33N/AN/A32755,2373,234
2025-12-03$1.37$1.0058.7%16.8%29.9%14.9%75.0%37.8%22.0%55.7K-2.2M-13.3K1.9377.23N/AN/A10420155,2223,240
2025-12-04$1.35$1.0059.6%15.7%29.3%15.3%58.6%196.1%57.4%59.3K-2.3M-13.0K2.08110.65N/AN/A245055,3193,041
2025-12-05$1.35$1.0061.7%20.3%29.2%16.4%71.3%212.9%32.6%52.8K-2.2M-13.0K0.06114.96N/AN/A35255,3423,030
2025-12-08$1.31$1.0066.2%18.8%30.1%18.9%64.8%2.3%42.9%55.8K-2.3M-12.9K0.1192.45N/AN/A1451655,3743,030
2025-12-09$1.38$1.0060.7%19.7%35.1%15.9%69.2%-9.5%38.7%57.4K-2.2M-12.8K0.0290.25N/AN/A428855,4743,043
2025-12-10$1.38$1.0059.2%17.0%35.1%15.1%61.8%199.8%19.6%62.0K-2.3M-12.6K0.09106.44N/AN/A1241155,7043,042
2025-12-11$1.38$1.0051.5%14.8%35.1%11.1%62.9%201.7%8.6%66.0K-2.3M-12.1K0.08110.18N/AN/A1881555,7863,043
2025-12-12$1.38$1.0069.1%19.8%33.0%20.4%0.0%-2.8%12.7%55.6K-2.3M-13.1K0.2492.04N/AN/A421055,8483,042
2025-12-15$1.35$1.0051.7%14.8%34.2%11.2%51.3%7.4%47.8%66.6K-2.3M-11.9K0.52107.97N/AN/A231255,8763,052
2025-12-16$1.31$1.0073.7%21.1%36.1%22.8%73.5%2.1%28.4%52.6K-2.1M-11.7K0.08105.60N/AN/A48455,8793,032
2025-12-17$1.31$1.0058.0%16.6%35.5%14.5%55.6%4.7%27.2%48.8K-1.8M-11.5K0.00101.57N/AN/A254055,8933,033
2025-12-18$1.31$1.0049.9%14.3%33.8%10.2%81.0%22.3%302.9%50.3K-1.7M-11.3K0.0097.70N/AN/A115056,1223,033
2025-12-19$1.31$1.0041.7%12.0%33.3%5.9%105.9%13.6%51.8%50.5K-1.6M-10.7K0.02102.54N/AN/A6661156,1623,017
2025-12-22$1.35$1.0036.9%10.6%35.1%3.4%43.2%21.6%21.9%64.2K-1.6M-9.8K0.0194.45N/AN/A442450,9352,572
2025-12-23$1.33$1.0046.2%13.3%35.1%8.3%86.3%21.9%-14.7%57.5K-1.6M-10.6K0.3091.09N/AN/A331051,2782,576
2025-12-24$1.31$1.0045.8%13.1%33.7%8.1%0.0%13.6%-16.2%52.3K-1.5M-10.1K0.0083.03N/AN/A138051,3022,586
2025-12-26$1.29$1.0046.3%13.3%34.0%8.3%100.0%9.0%-18.9%47.2K-1.4M-10.0K1.2655.92N/AN/A15719851,3252,586
2025-12-29$1.31$1.0063.2%18.1%34.6%17.3%103.2%27.5%-20.8%52.1K-1.5M-9.4K0.0087.71N/AN/A713051,4712,743
2025-12-30$1.29$1.0063.8%18.3%33.4%17.6%0.0%19.6%-23.2%47.7K-1.6M-10.2K0.0084.81N/AN/A191051,8782,743
2025-12-31$1.25$1.0091.8%26.3%33.0%32.3%62.7%5.3%137.2%40.2K-1.4M-9.5K0.0180.38N/AN/A259251,9932,743