MDBX Options History — September 2025 In September 2025, MDBX traded between $42.66 and $47.78. ATM implied volatility averaged 82.3%. The 30-day expected move averaged 23.6%. Max pain ranged from $31.00 to $31.00. Net GEX was positive for 11 of 11 trading days. Term structure was in contango for 11 of 11 days. Put/call ratio averaged 0.39.
Notable Days 2025-09-16 : Highest Volume — 10 contracts2025-09-30 : Largest IV spike — 15.2% change2025-09-16 : Largest Expected Move — 26.0%Monthly Statistics Metric Avg Min Max Open Close Price $44.75 $42.66 $47.78 $47.78 $42.66 Max Pain $31.00 $31.00 $31.00 $31.00 $31.00 ATM IV 82.3% 72.8% 90.6% 90.6% 83.9% Expected Move 23.6% 20.9% 26.0% 26.0% 24.0% Term Structure 6.7% 0.1% 25.1% 17.3% 1.9% VWIV 84.0% 70.8% 88.1% 87.2% 84.5% Skew 25d 0.9% -8.8% 19.7% 2.4% -8.8% Skew 10d -12.2% -25.6% 7.9% -16.8% -25.6% Call IV 25d 79.7% 70.7% 91.7% 87.2% 81.5% Put IV 25d 80.6% 71.5% 97.0% 89.6% 72.7% Bid-Ask Spread % 99.04 94.45 102.63 94.45 102.02 Gamma HHI 0.19 0.15 0.32 0.18 0.15 Net GEX 4.2K 3.1K 7.3K 4.5K 3.5K Net DEX -367.6K -597.1K -254.6K -597.1K -255.0K Net VEX -825 -893 -788 -893 -791 Div Yield 0.0% 0.0% 0.0% 0.0% 0.0% P/C Ratio 0.39 0.00 2.00 0.11 0.00 Total Volume 4.182 0 10 10 4 Total OI 169.091 131 234 230 138
Daily Data (11 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 Vol Put Vol Call OI Put OI 2025-09-16 $47.78 $31.00 90.6% 26.0% 0.0% 0.0% 87.2% 2.4% 17.3% 4.5K -597.1K -893 0.11 94.45 9 1 172 58 2025-09-17 $44.75 $31.00 86.7% 24.9% 0.0% 0.0% 88.1% 19.7% 25.1% 5.3K -518.5K -868 2.00 97.72 2 4 174 58 2025-09-18 $44.15 $31.00 82.8% 23.7% 0.0% 0.0% 87.1% -7.3% 6.0% 5.4K -479.8K -820 0.50 96.27 6 3 172 62 2025-09-19 $45.72 $31.00 82.5% 23.6% 0.0% 0.0% 87.2% 6.2% 2.5% 7.3K -532.0K -792 0.20 97.85 5 1 168 60 2025-09-22 $46.06 $31.00 82.9% 23.8% 0.0% 0.0% 0.0% 7.6% 3.3% 3.2K -296.5K -845 0.00 96.47 0 0 109 22 2025-09-23 $44.74 $31.00 82.8% 23.7% 0.0% 0.0% 0.0% -1.8% 0.1% 3.2K -286.3K -824 0.00 99.42 0 0 109 22 2025-09-24 $44.16 $31.00 81.5% 23.4% 0.0% 0.0% 83.1% -3.4% 2.4% 3.2K -273.4K -820 0.00 99.88 1 0 109 22 2025-09-25 $43.41 $31.00 82.0% 23.5% 0.0% 0.0% 0.0% 3.0% 2.0% 3.1K -254.6K -788 0.33 100.24 3 1 110 22 2025-09-26 $44.03 $31.00 77.0% 22.1% 0.0% 0.0% 0.0% -8.6% 3.1% 3.4K -266.5K -807 0.00 102.63 4 0 112 23 2025-09-29 $44.77 $31.00 72.8% 20.9% 0.0% 0.0% 70.8% 1.1% 9.5% 3.7K -283.9K -827 0.00 102.51 0 2 115 23 2025-09-30 $42.66 $31.00 83.9% 24.0% 0.0% 0.0% 84.5% -8.8% 1.9% 3.5K -255.0K -791 0.00 102.02 4 0 115 23
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