OUSA Options History — August 2025 In August 2025, OUSA traded between $53.50 and $56.20. ATM implied volatility averaged 19.8%, placing in the 21.8% IV rank vs the trailing year. The 30-day expected move averaged 4.5%. IV traded above realized volatility by 10.6% (HV 20d: 9.3%). Net GEX was positive for 15 of 21 trading days. Term structure was in contango for 0 of 21 days. Put/call ratio averaged 0.00.
Notable Days 2025-08-22 : Highest Volume — 10 contracts2025-08-13 : Largest IV drop — 61.2% change2025-08-12 : Highest IV Rank — 51.1%2025-08-01 : Largest Expected Move — 6.7%Monthly Statistics Metric Avg Min Max Open Close Price $55.25 $53.50 $56.20 $53.50 $56.02 ATM IV 19.8% 14.3% 36.7% 23.3% 16.8% Expected Move 4.5% 3.9% 6.7% 6.7% 4.8% HV 20d 9.3% 8.0% 10.3% 8.0% 9.0% HV 60d 10.3% 9.7% 11.2% 11.0% 9.8% IV Rank 21.8% 12.2% 51.1% 27.7% 16.6% IV Percentile 40.1% 6.3% 95.6% 76.6% 34.9% Term Structure -3.0% -8.1% -0.4% -8.1% -3.7% Skew 25d 2.4% -2.4% 5.6% 3.8% 2.3% Skew 10d 5.2% 0.3% 7.8% 0.3% 7.3% Call IV 25d 11.4% 8.2% 16.5% 16.5% 13.0% Put IV 25d 13.8% 9.3% 20.3% 20.3% 15.3% Bid-Ask Spread % 169.38 164.07 174.15 167.27 168.34 Gamma HHI 0.71 0.57 1.00 0.64 0.57 Net GEX -114 -1.5K 680 485 -1.5K Net DEX 775 -4.4K 12.2K -3.2K 12.1K Net VEX -31 -92 -1 -25 -92 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 0.571 0 10 0 0 Total OI 5.19 2 12 4 12
Daily Data (21 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 2025-08-01 $53.50 $0.00 23.3% 6.7% 8.0% 27.7% 0.0% 3.8% -8.1% 485 -3.2K -25 0.00 167.27 N/A N/A 0 0 2 2 2025-08-04 $54.17 $0.00 21.6% 4.0% 8.5% 24.9% 0.0% 4.2% -2.1% 680 -4.4K -23 0.00 172.77 N/A N/A 1 0 2 2 2025-08-05 $54.09 $0.00 21.7% 4.1% 8.5% 25.0% 0.0% 3.7% -1.7% 221 -1.9K -14 0.00 172.83 N/A N/A 0 0 1 2 2025-08-06 $54.45 $0.00 25.9% 4.3% 8.8% 32.4% 0.0% 3.3% -2.3% 276 -2.3K -13 0.00 173.39 N/A N/A 0 0 1 2 2025-08-07 $54.27 $0.00 26.5% 4.8% 8.8% 33.3% 0.0% 4.2% -6.8% 259 -2.1K -13 0.00 174.15 N/A N/A 0 0 1 2 2025-08-08 $54.75 $0.00 25.9% 3.9% 8.9% 32.3% 0.0% 2.6% -1.9% 268 -2.5K -12 0.00 174.07 N/A N/A 0 0 1 2 2025-08-11 $54.64 $0.00 34.8% 4.4% 8.9% 47.6% 0.0% 1.0% -7.3% 288 -2.4K -12 0.00 164.07 N/A N/A 0 0 1 2 2025-08-12 $55.06 $0.00 36.7% 4.3% 8.9% 51.1% 0.0% 1.1% -2.0% 330 -2.9K -11 0.00 170.01 N/A N/A 0 0 1 2 2025-08-13 $55.67 $0.00 14.3% 4.1% 9.5% 12.2% 0.0% 1.3% -1.8% 413 -3.2K -9 0.00 168.29 N/A N/A 0 0 1 2 2025-08-14 $55.53 $0.00 14.8% 4.2% 9.6% 13.1% 0.0% -1.2% -2.5% 269 -3.0K -11 0.00 168.93 N/A N/A 0 0 1 2 2025-08-15 $55.58 $0.00 15.2% 4.3% 9.4% 13.7% 0.0% 4.4% -1.8% 294 -3.2K -11 0.00 168.65 N/A N/A 0 0 1 2 2025-08-18 $55.55 $0.00 15.3% 4.4% 9.4% 14.1% 0.0% 2.8% -1.7% 407 -3.1K -9 0.00 168.78 N/A N/A 0 0 1 2 2025-08-19 $55.73 $0.00 14.8% 4.2% 9.2% 13.2% 0.0% -1.5% -0.8% 313 -3.3K -10 0.00 169.69 N/A N/A 0 0 1 2 2025-08-20 $55.91 $0.00 15.9% 4.6% 9.2% 15.1% 0.0% -0.7% -0.4% 375 -3.3K -9 0.00 165.09 N/A N/A 0 0 1 2 2025-08-21 $55.58 $0.00 15.7% 4.5% 9.5% 14.7% 0.0% -2.4% -0.8% 236 -3.1K -10 0.00 168.37 N/A N/A 1 0 1 2 2025-08-22 $56.20 $0.00 15.7% 4.5% 10.2% 14.6% 0.0% 3.4% -4.2% -26 59 -1 0.00 168.97 N/A N/A 0 10 0 2 2025-08-25 $55.86 $0.00 15.2% 4.4% 10.3% 13.8% 0.0% 3.2% -3.2% -1.5K 11.7K -90 0.00 169.06 N/A N/A 0 0 0 12 2025-08-26 $55.76 $0.00 15.3% 4.4% 10.3% 13.9% 0.0% 3.5% -3.2% -1.5K 12.2K -92 0.00 168.95 N/A N/A 0 0 0 12 2025-08-27 $55.97 $0.00 15.8% 4.5% 9.8% 14.9% 0.0% 5.2% -3.1% -1.5K 12.0K -88 0.00 168.53 N/A N/A 0 0 0 12 2025-08-28 $55.98 $0.00 15.5% 4.4% 9.7% 14.3% 0.0% 5.6% -3.2% -1.5K 12.1K -89 0.00 166.74 N/A N/A 0 0 0 12 2025-08-29 $56.02 $0.00 16.8% 4.8% 9.0% 16.6% 0.0% 2.3% -3.7% -1.5K 12.1K -92 0.00 168.34 N/A N/A 0 0 0 12
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