DUSA Options History — December 2025 In December 2025, DUSA traded between $50.23 and $51.94. ATM implied volatility averaged 26.6%, placing in the 12.3% IV rank vs the trailing year. The 30-day expected move averaged 7.2%. IV traded above realized volatility by 13.7% (HV 20d: 13.0%). Net GEX was positive for 17 of 22 trading days. Term structure was in contango for 0 of 22 days. Put/call ratio averaged 0.00.
Notable Days 2025-12-05 : Highest Volume — 1 contracts2025-12-10 : Largest IV drop — 36.5% change2025-12-09 : Highest IV Rank — 22.8%2025-12-30 : Largest Expected Move — 8.2%Monthly Statistics Metric Avg Min Max Open Close Price $51.15 $50.23 $51.94 $50.23 $51.09 ATM IV 26.6% 22.2% 34.9% 28.4% 28.4% Expected Move 7.2% 6.4% 8.2% 8.1% 8.1% HV 20d 13.0% 9.1% 15.2% 14.9% 10.4% HV 60d 14.0% 13.3% 14.9% 14.7% 13.6% IV Rank 12.3% 6.6% 22.8% 14.5% 14.5% IV Percentile 34.9% 2.8% 78.2% 48.8% 49.6% Term Structure -4.5% -8.3% -1.2% -6.5% -8.3% Skew 25d 5.2% -1.2% 16.6% 4.1% -1.2% Skew 10d 6.4% 0.6% 17.0% 7.1% 3.6% Call IV 25d 19.5% 8.5% 34.6% 20.8% 34.6% Put IV 25d 24.7% 20.6% 33.4% 24.9% 33.4% Bid-Ask Spread % 164.16 145.22 171.24 145.98 164.44 Gamma HHI 0.71 0.34 1.00 1.00 0.34 Net GEX 251 0 573 0 552 Net DEX -3.4K -8.1K 0 0 -7.7K Net VEX -15 -37 0 0 -37 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 0.136 0 1 0 0 Total OI 1.318 0 3 0 3
Daily Data (22 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 2025-12-01 $50.23 $0.00 28.4% 8.1% 14.9% 14.5% 0.0% 4.1% -6.5% 0 0 0 0.00 145.98 N/A N/A 0 0 0 0 2025-12-02 $50.40 $0.00 28.5% 8.2% 14.8% 14.7% 0.0% 4.9% -6.8% 0 0 0 0.00 145.53 N/A N/A 0 0 0 0 2025-12-03 $50.70 $0.00 28.2% 8.1% 14.9% 14.3% 0.0% 3.7% -7.1% 0 0 0 0.00 145.22 N/A N/A 0 0 0 0 2025-12-04 $50.66 $0.00 30.0% 6.6% 14.9% 16.6% 0.0% 7.8% -2.2% 0 0 0 0.00 170.90 N/A N/A 0 0 0 0 2025-12-05 $51.05 $0.00 30.4% 6.5% 14.4% 17.1% 0.0% 10.7% -3.0% 0 0 0 0.00 170.23 N/A N/A 1 0 0 0 2025-12-08 $50.53 $0.00 32.2% 6.6% 15.2% 19.4% 0.0% 5.9% -2.8% 194 -2.1K -10 0.00 169.66 N/A N/A 0 0 1 0 2025-12-09 $50.74 $0.00 34.9% 6.7% 14.9% 22.8% 0.0% 5.6% -2.8% 194 -2.2K -10 0.00 171.24 N/A N/A 0 0 1 0 2025-12-10 $51.34 $0.00 22.2% 6.4% 15.1% 6.6% 0.0% 16.6% -2.5% 206 -2.5K -11 0.00 163.28 N/A N/A 0 0 1 0 2025-12-11 $51.68 $0.00 22.7% 6.5% 15.1% 7.3% 0.0% 13.7% -1.2% 185 -2.4K -10 0.00 168.12 N/A N/A 0 0 1 0 2025-12-12 $51.33 $0.00 22.8% 6.5% 14.4% 7.4% 0.0% 2.9% -3.1% 211 -2.4K -11 0.00 165.51 N/A N/A 0 0 1 0 2025-12-15 $51.42 $0.00 24.2% 6.9% 14.0% 9.2% 0.0% 4.6% -4.7% 213 -2.5K -10 0.00 167.04 N/A N/A 0 0 1 0 2025-12-16 $51.05 $0.00 23.9% 6.8% 12.7% 8.8% 0.0% 5.8% -3.6% 212 -2.3K -10 0.00 165.44 N/A N/A 0 0 1 0 2025-12-17 $50.82 $0.00 24.1% 6.9% 13.1% 9.0% 0.0% 5.5% -4.4% 203 -2.2K -10 0.00 168.51 N/A N/A 1 0 1 0 2025-12-18 $51.22 $0.00 24.6% 7.1% 12.7% 9.7% 0.0% 4.7% -3.6% 363 -5.3K -24 0.00 165.99 N/A N/A 0 0 2 0 2025-12-19 $51.27 $0.00 25.0% 7.2% 12.4% 10.2% 0.0% 3.8% -4.5% 376 -5.3K -24 0.00 167.57 N/A N/A 0 0 2 0 2025-12-22 $51.63 $0.00 24.4% 7.0% 11.4% 9.5% 0.0% 4.3% -4.0% 387 -5.6K -24 0.00 166.65 N/A N/A 0 0 2 0 2025-12-23 $51.64 $0.00 24.9% 7.1% 11.0% 10.1% 0.0% 4.0% -3.7% 388 -5.6K -24 0.00 167.80 N/A N/A 0 0 2 0 2025-12-24 $51.91 $0.00 24.4% 7.0% 9.6% 9.5% 0.0% 2.5% -4.7% 359 -5.8K -24 0.00 165.38 N/A N/A 0 0 2 0 2025-12-26 $51.94 $0.00 25.6% 7.4% 9.1% 11.0% 0.0% 1.2% -5.3% 362 -5.6K -24 0.00 166.47 N/A N/A 1 0 2 0 2025-12-29 $51.32 $0.00 27.2% 7.8% 10.3% 13.0% 0.0% 2.0% -6.3% 573 -8.0K -37 0.00 165.15 N/A N/A 0 0 3 0 2025-12-30 $51.33 $0.00 28.6% 8.2% 10.2% 14.7% 0.0% 0.4% -7.9% 553 -8.1K -37 0.00 165.45 N/A N/A 0 0 3 0 2025-12-31 $51.09 $0.00 28.4% 8.1% 10.4% 14.5% 0.0% -1.2% -8.3% 552 -7.7K -37 0.00 164.44 N/A N/A 0 0 3 0
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