OPK Options History — August 2025

In August 2025, OPK traded between $1.19 and $1.42. ATM implied volatility averaged 57.3%, placing in the 17.3% IV rank vs the trailing year. The 30-day expected move averaged 11.5%. IV traded above realized volatility by 3.2% (HV 20d: 54.1%). 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 17 of 21 days. Put/call ratio averaged 0.11.

Notable Days

  • 2025-08-11: Highest Volume — 1,305 contracts
  • 2025-08-13: Largest IV drop — 62.3% change
  • 2025-08-08: Highest IV Rank — 50.6%
  • 2025-08-01: Largest Expected Move — 21.5%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$1.34$1.19$1.42$1.19$1.38
Max Pain$1.48$1.00$1.50$1.00$1.50
ATM IV57.3%30.9%114.2%75.1%42.0%
Expected Move11.5%8.9%21.5%21.5%12.0%
HV 20d54.1%41.5%57.8%41.5%43.0%
HV 60d38.8%36.3%40.7%36.3%37.1%
IV Rank17.3%3.3%50.6%24.9%9.6%
IV Percentile40.2%1.6%96.0%86.1%21.0%
Term Structure12.3%-37.4%28.4%-37.4%0.2%
VWIV58.6%38.4%96.5%80.5%91.2%
Skew 25d42.9%6.3%258.1%6.3%33.7%
Skew 10d39.2%-3.5%320.2%-3.5%16.8%
Call IV 25d37.3%29.2%76.5%76.5%36.2%
Put IV 25d80.2%45.0%296.5%82.8%70.0%
Bid-Ask Spread %62.3728.8097.1088.3262.36
Gamma HHI0.530.440.620.440.59
Net GEX61.6K42.7K84.8K42.7K72.6K
Net DEX-2.6M-3.2M-1.8M-1.8M-2.7M
Net VEX-20.2K-21.6K-18.2K-18.2K-19.8K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.110.000.750.020.08
Total Volume467.81491,3051,246121
Total OI76,053.8174,82276,60875,71576,469

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2025-08-01$1.19$1.0075.1%21.5%41.5%24.9%80.5%6.3%-37.4%42.7K-1.8M-18.2K0.0288.32N/AN/A1,2212569,2576,458
2025-08-04$1.31$1.5066.3%14.1%55.2%20.5%43.3%16.1%23.7%57.4K-2.5M-20.8K0.3145.77N/AN/A33710569,7246,480
2025-08-05$1.27$1.5081.0%11.1%55.8%27.9%57.5%9.2%28.4%51.2K-2.2M-19.7K0.0075.93N/AN/A400169,9976,584
2025-08-06$1.27$1.5085.4%11.2%55.7%30.0%0.0%9.3%24.9%51.3K-2.3M-19.7K0.0371.49N/AN/A253770,0256,583
2025-08-07$1.25$1.50106.8%13.1%55.5%40.7%0.0%6.6%-9.3%48.0K-2.1M-19.3K0.0097.10N/AN/A193070,0006,588
2025-08-08$1.25$1.50114.2%13.3%55.5%50.6%45.2%6.7%13.8%48.0K-2.1M-19.4K0.0075.26N/AN/A275169,9086,586
2025-08-11$1.29$1.50105.4%12.1%56.7%45.6%0.0%258.1%25.7%54.6K-2.4M-19.8K0.0096.80N/AN/A1,305069,8986,586
2025-08-12$1.33$1.50101.1%10.6%57.8%43.1%0.0%246.2%25.9%55.0K-2.6M-20.4K0.0094.96N/AN/A418069,7246,486
2025-08-13$1.35$1.5038.1%10.9%57.8%7.4%0.0%24.7%25.1%56.0K-2.8M-20.9K0.0275.54N/AN/A4771069,5846,486
2025-08-14$1.35$1.5030.9%8.9%57.2%3.3%57.3%18.6%15.0%57.9K-2.6M-20.4K0.0265.50N/AN/A260569,7476,484
2025-08-15$1.37$1.5032.3%9.3%56.9%4.1%0.0%24.4%3.9%61.6K-2.8M-20.7K0.0572.34N/AN/A6573069,8306,485
2025-08-18$1.40$1.5038.4%11.0%55.9%7.6%52.4%23.8%24.5%62.2K-3.1M-21.6K0.0534.98N/AN/A1,0295168,4416,381
2025-08-19$1.37$1.5034.3%9.8%55.9%5.2%38.4%25.8%25.5%64.9K-2.6M-20.2K0.7547.53N/AN/A282168,7986,381
2025-08-20$1.38$1.5035.2%10.1%54.4%5.7%40.9%28.7%3.1%64.3K-2.8M-20.5K0.1158.39N/AN/A92810068,8026,381
2025-08-21$1.40$1.5044.6%12.8%54.5%11.1%0.0%12.2%-13.0%69.6K-3.0M-21.0K0.0054.01N/AN/A223069,5346,303
2025-08-22$1.40$1.5041.0%11.7%54.2%9.0%0.0%25.4%-8.6%63.9K-3.2M-21.5K0.2966.24N/AN/A722169,5426,303
2025-08-25$1.40$1.5034.4%9.9%53.5%5.3%41.9%29.5%22.4%76.3K-2.8M-20.0K0.1029.12N/AN/A3473469,5096,324
2025-08-26$1.40$1.5031.1%8.9%53.5%3.4%0.0%29.3%22.3%74.3K-2.8M-20.0K0.4838.12N/AN/A1678069,6066,305
2025-08-27$1.42$1.5032.5%9.3%53.3%4.2%96.5%33.1%20.9%76.6K-3.1M-20.5K0.0031.27N/AN/A453069,7436,345
2025-08-28$1.42$1.5033.3%9.5%51.8%4.6%0.0%33.9%20.8%84.8K-3.0M-20.3K0.0028.80N/AN/A169070,1186,345
2025-08-29$1.38$1.5042.0%12.0%43.0%9.6%91.2%33.7%0.2%72.6K-2.7M-19.8K0.0862.36N/AN/A112970,1246,345