IBKR Options History — September 2025 In September 2025, IBKR traded between $60.45 and $68.78. ATM implied volatility averaged 38.8%, placing in the 16.1% IV rank vs the trailing year. The 30-day expected move averaged 11.5%. IV traded above realized volatility by 4.5% (HV 20d: 34.3%). Max pain ranged from $52.50 to $65.00. Net GEX was positive for 21 of 21 trading days. Term structure was in contango for 10 of 21 days. Put/call ratio averaged 0.75.
Notable Days 2025-09-05 : Highest Volume — 24,011 contracts2025-09-15 : Largest IV spike — 8.9% change2025-09-30 : Highest IV Rank — 22.1%2025-09-30 : Largest Expected Move — 14.0%Monthly Statistics Metric Avg Min Max Open Close Price $63.99 $60.45 $68.78 $63.76 $68.78 Max Pain $60.55 $52.50 $65.00 $52.50 $65.00 ATM IV 38.8% 35.7% 44.4% 36.0% 44.4% Expected Move 11.5% 10.4% 14.0% 10.7% 14.0% HV 20d 34.3% 29.7% 39.8% 34.4% 35.5% HV 60d 32.8% 30.7% 33.6% 32.6% 33.5% IV Rank 16.1% 11.9% 22.1% 16.3% 22.1% IV Percentile 67.9% 56.0% 82.5% 58.7% 82.5% Term Structure 0.4% -1.3% 3.3% -0.1% -1.3% VWIV 40.1% 36.4% 49.6% 38.1% 49.6% Skew 25d 3.5% -3.7% 11.2% 2.8% 3.0% Skew 10d 12.1% 2.3% 25.3% 3.0% 12.0% Call IV 25d 37.0% 27.6% 43.5% 35.2% 43.5% Put IV 25d 40.5% 31.1% 46.6% 38.0% 46.6% Bid-Ask Spread % 50.08 25.18 65.06 54.51 25.18 Gamma HHI 0.08 0.06 0.21 0.07 0.10 Net GEX 8.0M 4.7M 15.5M 8.6M 8.2M Net DEX -512.7M -632.3M -393.3M -568.6M -537.3M Net VEX -1.9M -2.0M -1.8M -1.9M -2.0M Div Yield 0.0% 0.0% 0.0% 0.0% 0.0% P/C Ratio 0.75 0.30 1.70 0.72 0.46 Total Volume 10,896.571 3,436 24,011 14,637 14,670 Total OI 265,452.19 200,354 297,161 284,400 225,035
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 2025-09-02 $63.76 $52.50 36.0% 10.7% 34.4% 16.3% 38.1% 2.8% -0.1% 8.6M -568.6M -1.9M 0.72 54.51 N/A N/A 8,531 6,106 152,984 131,416 2025-09-03 $63.79 $52.50 35.7% 10.4% 33.9% 16.0% 36.4% 3.5% 2.9% 9.0M -582.2M -1.9M 0.67 52.04 N/A N/A 4,762 3,173 155,583 133,252 2025-09-04 $64.17 $60.00 35.7% 10.5% 34.0% 15.9% 37.1% 3.0% -0.4% 9.8M -602.3M -1.9M 0.57 53.29 N/A N/A 6,143 3,517 156,608 134,189 2025-09-05 $60.45 $60.00 36.4% 11.0% 39.8% 12.7% 37.7% 3.4% 0.4% 4.9M -405.0M -1.9M 0.80 54.67 N/A N/A 13,359 10,652 156,760 135,719 2025-09-08 $60.95 $60.00 36.0% 11.0% 38.7% 12.2% 38.5% 2.8% 2.4% 6.8M -451.5M -1.9M 0.48 50.27 N/A N/A 5,372 2,584 155,527 132,850 2025-09-09 $62.20 $60.00 35.8% 11.2% 39.5% 11.9% 38.0% -3.7% 3.3% 8.4M -513.5M -1.9M 0.37 59.71 N/A N/A 7,289 2,669 157,350 133,927 2025-09-10 $62.47 $60.00 36.8% 11.3% 38.6% 13.2% 38.7% 11.2% 2.0% 8.9M -530.2M -1.9M 0.81 62.35 N/A N/A 3,005 2,421 159,892 135,080 2025-09-11 $63.24 $60.00 36.3% 10.6% 29.9% 12.6% 37.4% 3.3% 0.8% 9.9M -566.3M -1.9M 0.55 64.64 N/A N/A 4,370 2,384 159,842 135,794 2025-09-12 $63.87 $60.00 35.9% 10.8% 29.7% 12.2% 38.4% 2.8% 2.3% 10.5M -594.4M -1.9M 0.84 62.55 N/A N/A 4,553 3,820 158,938 136,042 2025-09-15 $62.33 $60.00 39.2% 11.4% 30.8% 15.9% 38.0% 3.9% -0.6% 7.7M -506.0M -1.8M 0.50 57.19 N/A N/A 7,835 3,906 153,191 133,367 2025-09-16 $62.53 $60.00 38.4% 11.0% 30.8% 15.0% 39.1% 3.9% 0.9% 7.8M -505.3M -1.9M 1.21 64.06 N/A N/A 5,462 6,626 153,781 134,719 2025-09-17 $62.40 $60.00 39.7% 11.4% 29.9% 16.6% 41.2% 2.6% -0.2% 4.8M -498.4M -1.9M 1.09 63.88 N/A N/A 3,656 3,973 155,404 139,901 2025-09-18 $64.96 $60.00 38.7% 11.1% 33.2% 15.3% 37.9% 4.0% 0.3% 11.2M -632.3M -1.8M 0.34 65.06 N/A N/A 11,110 3,780 156,336 138,262 2025-09-19 $64.72 $60.00 39.3% 11.3% 33.2% 16.1% 40.0% 2.8% -0.8% 15.5M -616.8M -1.8M 0.94 64.47 N/A N/A 4,030 3,803 157,803 139,358 2025-09-22 $63.88 $60.00 40.0% 11.4% 33.6% 16.9% 39.0% 8.1% -0.4% 5.2M -393.3M -1.8M 1.70 37.55 N/A N/A 5,587 9,482 114,725 85,629 2025-09-23 $65.57 $64.50 41.3% 11.9% 34.7% 18.4% 41.0% 3.4% -0.6% 5.2M -439.3M -1.8M 0.30 36.97 N/A N/A 7,295 2,221 116,147 94,035 2025-09-24 $64.36 $64.00 41.7% 12.0% 35.5% 18.9% 42.1% 3.1% -0.8% 4.7M -407.5M -1.9M 0.57 26.29 N/A N/A 2,193 1,243 118,851 94,475 2025-09-25 $64.76 $64.50 42.3% 12.5% 34.1% 19.6% 43.3% 3.5% -1.0% 5.3M -422.1M -1.9M 0.56 32.04 N/A N/A 3,543 1,972 119,162 95,164 2025-09-26 $65.97 $64.00 41.4% 12.2% 34.2% 18.5% 43.0% 2.6% -1.2% 9.1M -469.3M -1.8M 1.39 34.62 N/A N/A 3,693 5,149 120,746 95,352 2025-09-29 $68.66 $64.50 44.0% 13.8% 36.4% 21.6% 48.3% 2.9% 0.1% 6.8M -525.8M -1.8M 0.87 30.39 N/A N/A 12,218 10,671 117,835 93,465 2025-09-30 $68.78 $65.00 44.4% 14.0% 35.5% 22.1% 49.6% 3.0% -1.3% 8.2M -537.3M -2.0M 0.46 25.18 N/A N/A 10,038 4,632 125,549 99,486
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