OPK Options History — September 2025

In September 2025, OPK traded between $1.35 and $1.54. ATM implied volatility averaged 55.9%, placing in the 17.5% IV rank vs the trailing year. The 30-day expected move averaged 15.4%. IV traded above realized volatility by 22.9% (HV 20d: 33.0%). Max pain ranged from $1.00 to $1.50. Net GEX was positive for 21 of 21 trading days. Term structure was in contango for 4 of 21 days. Put/call ratio averaged 0.11.

Notable Days

  • 2025-09-09: Highest Volume — 19,876 contracts
  • 2025-09-18: Largest IV drop — 29.6% change
  • 2025-09-30: Highest IV Rank — 28.6%
  • 2025-09-30: Largest Expected Move — 21.6%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$1.43$1.35$1.54$1.38$1.54
Max Pain$1.05$1.00$1.50$1.50$1.00
ATM IV55.9%44.2%75.5%46.6%75.5%
Expected Move15.4%8.4%21.6%13.4%21.6%
HV 20d33.0%24.4%41.0%27.4%41.0%
HV 60d39.4%36.8%42.2%36.8%42.2%
IV Rank17.5%10.8%28.6%12.2%28.6%
IV Percentile55.4%23.0%85.7%34.1%85.7%
Term Structure-5.5%-25.4%24.1%-2.2%-8.8%
VWIV66.9%35.2%134.4%134.4%66.4%
Skew 25d17.7%-15.3%77.5%37.1%77.5%
Skew 10d15.7%-113.6%126.1%18.8%126.1%
Call IV 25d56.0%24.8%74.0%40.6%66.2%
Put IV 25d73.7%49.2%143.7%77.7%143.7%
Bid-Ask Spread %58.6733.59123.1354.1844.90
Gamma HHI0.510.400.640.600.40
Net GEX67.6K52.5K104.2K73.8K55.8K
Net DEX-2.9M-3.5M-2.4M-2.7M-3.4M
Net VEX-17.6K-19.6K-16.0K-19.2K-18.0K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.110.000.700.000.01
Total Volume1,442.2386619,876323786
Total OI66,251.38152,01776,63676,40653,219

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2025-09-02$1.38$1.5046.6%13.4%27.4%12.2%134.4%37.1%-2.2%73.8K-2.7M-19.2K0.0054.18N/AN/A322170,0556,351
2025-09-03$1.38$1.5048.0%13.8%24.4%13.0%104.8%38.1%-16.5%74.3K-2.7M-19.0K0.0055.69N/AN/A81070,2246,346
2025-09-04$1.38$1.0049.6%8.4%24.4%13.9%0.0%24.4%22.8%69.7K-2.8M-19.5K0.18102.40N/AN/A561070,1796,346
2025-09-05$1.35$1.0055.9%10.3%25.1%17.5%0.0%23.4%24.1%66.8K-2.6M-18.6K0.01123.13N/AN/A236270,1846,356
2025-09-08$1.42$1.0046.9%11.1%30.0%12.4%35.2%13.0%15.5%80.9K-3.2M-19.6K0.0055.24N/AN/A473170,0316,345
2025-09-09$1.42$1.0049.2%14.4%28.6%13.7%57.4%-1.1%-15.0%78.9K-3.1M-19.5K0.0058.38N/AN/A19,876070,2916,345
2025-09-10$1.40$1.0051.6%14.8%27.6%15.1%63.0%-6.1%-8.5%64.9K-2.5M-17.3K0.0169.78N/AN/A174164,5546,345
2025-09-11$1.44$1.0050.4%14.5%28.8%14.4%58.5%3.6%-6.0%70.7K-2.8M-17.5K0.6182.84N/AN/A47228864,0226,346
2025-09-12$1.40$1.0053.1%15.2%30.9%15.9%64.2%-6.4%-9.7%64.2K-2.5M-17.0K0.0050.30N/AN/A506163,7986,346
2025-09-15$1.38$1.0056.3%16.1%31.0%17.7%73.0%-12.1%-13.6%60.0K-2.4M-16.6K0.0156.25N/AN/A301364,0446,346
2025-09-16$1.40$1.0056.4%16.2%30.4%17.8%68.0%-15.3%-12.7%67.9K-2.4M-16.0K0.0153.97N/AN/A317264,0656,349
2025-09-17$1.40$1.0062.7%18.0%29.4%21.4%60.2%3.9%-10.0%64.5K-2.6M-16.8K0.2157.23N/AN/A1,35228964,1716,309
2025-09-18$1.50$1.0044.2%12.7%38.0%10.8%43.7%11.1%-4.0%101.6K-3.5M-17.6K0.2748.47N/AN/A1,07128563,9166,296
2025-09-19$1.50$1.0045.0%12.9%37.8%11.3%59.1%-3.6%-10.7%104.2K-3.4M-16.8K0.0233.97N/AN/A6821264,2606,355
2025-09-22$1.46$1.0055.7%16.0%39.3%17.4%56.0%10.3%-18.6%53.3K-2.9M-16.3K0.0055.76N/AN/A1,032048,7653,252
2025-09-23$1.44$1.0065.0%18.6%39.7%22.7%65.0%8.9%-1.6%52.5K-2.9M-16.7K0.7045.87N/AN/A1077549,1703,252
2025-09-24$1.46$1.0058.1%16.7%40.0%18.7%59.5%10.8%1.3%53.3K-2.9M-16.7K0.1733.59N/AN/A1963349,1593,327
2025-09-25$1.44$1.0067.9%19.5%40.1%24.3%68.1%9.3%-25.4%53.2K-2.9M-16.7K0.0043.27N/AN/A632049,3443,353
2025-09-26$1.46$1.0069.3%19.9%40.3%25.1%69.2%70.4%-8.5%54.2K-2.9M-16.9K0.0151.54N/AN/A222249,5223,353
2025-09-29$1.48$1.0065.8%18.9%38.9%23.1%65.9%74.6%-8.1%54.4K-3.1M-17.1K0.0055.34N/AN/A387149,6333,355
2025-09-30$1.54$1.0075.5%21.6%41.0%28.6%66.4%77.5%-8.8%55.8K-3.4M-18.0K0.0144.90N/AN/A780649,8633,356