DUSA Options History — October 2025 In October 2025, DUSA traded between $46.66 and $49.13. ATM implied volatility averaged 29.5%, placing in the 15.9% IV rank vs the trailing year. The 30-day expected move averaged 6.9%. IV traded above realized volatility by 14.5% (HV 20d: 15.0%). Max pain ranged from $44.00 to $44.00. Net GEX was positive for 4 of 23 trading days. Term structure was in contango for 0 of 23 days. Put/call ratio averaged 0.00.
Notable Days 2025-10-27 : Highest Volume — 4 contracts2025-10-13 : Largest IV spike — 65.1% change2025-10-13 : Highest IV Rank — 46.1%2025-10-03 : Largest Expected Move — 8.8%Monthly Statistics Metric Avg Min Max Open Close Price $48.05 $46.66 $49.13 $48.05 $47.98 Max Pain $44.00 $44.00 $44.00 $44.00 $44.00 ATM IV 29.5% 22.6% 53.2% 28.0% 27.7% Expected Move 6.9% 5.9% 8.8% 8.0% 8.0% HV 20d 15.0% 13.8% 16.9% 14.7% 15.4% HV 60d 14.2% 13.3% 15.1% 13.5% 14.4% IV Rank 15.9% 7.1% 46.1% 14.1% 13.7% IV Percentile 44.1% 6.0% 95.6% 44.8% 44.8% Term Structure -4.1% -9.6% -1.4% -8.0% -6.3% VWIV 33.2% 33.2% 33.2% 33.2% 33.2% Skew 25d 5.3% -1.3% 10.9% 4.3% 4.0% Skew 10d 5.7% -1.9% 15.6% 1.9% 3.5% Call IV 25d 17.8% 12.8% 23.1% 21.1% 20.4% Put IV 25d 23.1% 17.8% 26.2% 25.5% 24.4% Bid-Ask Spread % 171.64 161.72 176.82 172.72 175.54 Gamma HHI 0.52 0.52 0.53 0.53 0.52 Net GEX 89 0 577 0 565 Net DEX -3.0K -17.9K 0 0 -16.9K Net VEX -1 -10 0 0 -9 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 0.174 0 4 0 0 Total OI 0.696 0 4 0 4
Daily Data (23 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 2025-10-01 $48.05 $0.00 28.0% 8.0% 14.7% 14.1% 0.0% 4.3% -8.0% 0 0 0 0.00 172.72 N/A N/A 0 0 0 0 2025-10-02 $48.17 $0.00 29.2% 8.4% 14.3% 15.5% 0.0% 3.8% -7.6% 0 0 0 0.00 172.77 N/A N/A 0 0 0 0 2025-10-03 $48.19 $0.00 30.5% 8.8% 14.3% 17.2% 0.0% 3.1% -9.6% 0 0 0 0.00 174.46 N/A N/A 0 0 0 0 2025-10-06 $48.24 $0.00 33.3% 5.9% 14.2% 20.7% 0.0% 6.4% -1.8% 0 0 0 0.00 175.18 N/A N/A 0 0 0 0 2025-10-07 $48.00 $0.00 33.9% 6.0% 14.0% 21.5% 0.0% 4.3% -2.1% 0 0 0 0.00 173.84 N/A N/A 0 0 0 0 2025-10-08 $47.86 $0.00 36.2% 6.0% 13.8% 24.4% 0.0% 4.7% -2.4% 0 0 0 0.00 176.82 N/A N/A 0 0 0 0 2025-10-09 $47.77 $0.00 37.0% 6.0% 13.8% 25.5% 0.0% 5.2% -2.4% 0 0 0 0.00 175.61 N/A N/A 0 0 0 0 2025-10-10 $46.66 $0.00 32.2% 5.9% 15.9% 19.4% 0.0% -1.3% -1.4% 0 0 0 0.00 162.40 N/A N/A 0 0 0 0 2025-10-13 $47.23 $0.00 53.2% 6.7% 16.6% 46.1% 0.0% 7.2% -2.9% 0 0 0 0.00 169.93 N/A N/A 0 0 0 0 2025-10-14 $47.66 $0.00 44.5% 6.1% 16.9% 35.0% 0.0% 7.9% -2.6% 0 0 0 0.00 162.41 N/A N/A 0 0 0 0 2025-10-15 $47.95 $0.00 22.6% 6.5% 16.0% 7.1% 0.0% 5.2% -3.2% 0 0 0 0.00 166.84 N/A N/A 0 0 0 0 2025-10-16 $47.22 $0.00 23.4% 6.7% 14.1% 8.2% 0.0% 3.4% -3.6% 0 0 0 0.00 161.72 N/A N/A 0 0 0 0 2025-10-17 $47.61 $0.00 23.7% 6.8% 14.5% 8.5% 0.0% 8.2% -2.9% 0 0 0 0.00 169.57 N/A N/A 0 0 0 0 2025-10-20 $48.27 $0.00 23.4% 6.7% 15.4% 8.2% 0.0% 7.1% -3.3% 0 0 0 0.00 171.14 N/A N/A 0 0 0 0 2025-10-21 $48.48 $0.00 24.2% 6.9% 15.4% 9.1% 0.0% 6.8% -3.8% 0 0 0 0.00 172.30 N/A N/A 0 0 0 0 2025-10-22 $48.23 $0.00 24.0% 6.9% 15.5% 8.9% 0.0% 4.8% -3.4% 0 0 0 0.00 169.54 N/A N/A 0 0 0 0 2025-10-23 $48.47 $0.00 24.5% 7.0% 15.1% 9.6% 0.0% 5.9% -3.6% 0 0 0 0.00 173.02 N/A N/A 0 0 0 0 2025-10-24 $48.91 $0.00 23.8% 6.8% 14.8% 8.6% 0.0% 9.8% -3.5% 0 0 0 0.00 175.73 N/A N/A 0 0 0 0 2025-10-27 $49.13 $0.00 25.1% 7.2% 14.8% 10.3% 33.2% 10.9% -4.4% 0 0 0 0.00 173.72 N/A N/A 4 0 0 0 2025-10-28 $48.63 $44.00 25.5% 7.3% 14.7% 10.8% 0.0% 3.2% -5.2% 438 -17.9K -7 0.00 175.01 N/A N/A 0 0 4 0 2025-10-29 $48.48 $44.00 25.7% 7.4% 14.7% 11.1% 0.0% 2.9% -5.3% 460 -17.7K -8 0.00 172.32 N/A N/A 0 0 4 0 2025-10-30 $47.91 $44.00 27.1% 7.8% 15.3% 12.9% 0.0% 3.9% -5.5% 577 -16.8K -10 0.00 175.07 N/A N/A 0 0 4 0 2025-10-31 $47.98 $44.00 27.7% 8.0% 15.4% 13.7% 0.0% 4.0% -6.3% 565 -16.9K -9 0.00 175.54 N/A N/A 0 0 4 0
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