OPK Options History — April 2026 In April 2026, OPK traded between $1.13 and $1.15. ATM implied volatility averaged 114.7%, placing in the 27.6% IV rank vs the trailing year. The 30-day expected move averaged 32.9%. IV traded above realized volatility by 75.8% (HV 20d: 38.9%). Max pain ranged from $1.00 to $1.50. Net GEX was positive for 2 of 2 trading days. Term structure was in contango for 1 of 2 days. Put/call ratio averaged 0.00.
Notable Days 2026-04-01 : Highest Volume — 882 contracts2026-04-02 : Largest IV drop — 5.1% change2026-04-01 : Highest IV Rank — 28.6%2026-04-01 : Largest Expected Move — 33.7%Monthly Statistics Metric Avg Min Max Open Close Price $1.14 $1.13 $1.15 $1.13 $1.15 Max Pain $1.25 $1.00 $1.50 $1.00 $1.50 ATM IV 114.7% 111.7% 117.7% 117.7% 111.7% Expected Move 32.9% 32.0% 33.7% 33.7% 32.0% HV 20d 38.9% 38.4% 39.4% 39.4% 38.4% HV 60d 34.1% 33.9% 34.4% 34.4% 33.9% IV Rank 27.6% 26.6% 28.6% 28.6% 26.6% IV Percentile 81.5% 80.6% 82.5% 82.5% 80.6% Term Structure -6.8% -78.9% 65.4% 65.4% -78.9% Skew 25d -4.7% -5.2% -4.2% -4.2% -5.2% Skew 10d 38.4% 35.7% 41.2% 35.7% 41.2% Call IV 25d 83.4% 80.8% 86.0% 86.0% 80.8% Put IV 25d 78.7% 75.6% 81.8% 81.8% 75.6% Bid-Ask Spread % 93.91 76.38 111.43 76.38 111.43 Gamma HHI 0.24 0.24 0.24 0.24 0.24 Net GEX 13.1K 13.0K 13.2K 13.0K 13.2K Net DEX -759.9K -795.7K -724.0K -724.0K -795.7K Net VEX -6.5K -6.6K -6.3K -6.3K -6.6K Div Yield 0.0% 0.0% 0.0% 0.0% 0.0% P/C Ratio 0.00 0.00 0.00 0.00 0.00 Total Volume 630.5 379 882 882 379 Total OI 27,195 27,077 27,313 27,077 27,313
Daily Data (2 trading days) Date Price Max Pain ATM IV Exp Move HV 20d IV Rank VWIV Skew 25d Term Str GEX DEX VEX P/C Spread % Call Wall Put Wall Call Vol Put Vol Call OI Put OI 2026-04-01 $1.13 $1.00 117.7% 33.7% 39.4% 28.6% 0.0% -4.2% 65.4% 13.0K -724.0K -6.3K 0.00 76.38 N/A N/A 882 0 25,488 1,589 2026-04-02 $1.15 $1.50 111.7% 32.0% 38.4% 26.6% 0.0% -5.2% -78.9% 13.2K -795.7K -6.6K 0.00 111.43 N/A N/A 379 0 25,862 1,451
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