MDBX Options History — December 2025 In December 2025, MDBX traded between $45.62 and $78.25. ATM implied volatility averaged 75.9%. The 30-day expected move averaged 21.6%. IV traded below realized volatility by 60.9% (HV 20d: 136.8%). Max pain ranged from $34.00 to $75.00. Net GEX was positive for 11 of 22 trading days. Term structure was in contango for 19 of 22 days. Put/call ratio averaged 1.43.
Notable Days 2025-12-02 : Highest Volume — 340 contracts2025-12-02 : Largest IV drop — 43.4% change2025-12-01 : Largest Expected Move — 45.9%Monthly Statistics Metric Avg Min Max Open Close Price $70.55 $45.62 $78.25 $45.62 $71.27 Max Pain $63.64 $34.00 $75.00 $34.00 $75.00 ATM IV 75.9% 60.9% 160.0% 160.0% 67.9% Expected Move 21.6% 17.5% 45.9% 45.9% 19.5% HV 20d 136.8% 55.4% 151.0% 70.3% 55.4% HV 60d 97.7% 65.0% 102.4% 65.0% 98.4% Term Structure 14.7% -38.8% 32.1% -38.8% 8.9% VWIV 77.0% 62.5% 159.5% 159.5% 69.6% Skew 25d 2.6% -7.9% 12.9% -6.8% 1.2% Skew 10d -1.9% -21.9% 30.2% -4.4% -11.8% Call IV 25d 74.2% 59.4% 163.7% 163.7% 61.5% Put IV 25d 76.8% 62.7% 156.9% 156.9% 62.7% Bid-Ask Spread % 88.14 71.27 100.68 80.10 100.68 Gamma HHI 0.26 0.18 0.38 0.19 0.38 Net GEX 845 -4.4K 5.6K 4.0K -4.4K Net DEX -610.3K -966.5K -141.2K -253.4K -141.2K Net VEX -833 -988 -622 -622 -805 Div Yield 0.0% 0.0% 0.0% 0.0% 0.0% P/C Ratio 1.43 0.00 4.00 3.86 0.25 Total Volume 38.5 1 340 306 8 Total OI 208.455 92 444 149 105
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 Vol Put Vol Call OI Put OI 2025-12-01 $45.62 $34.00 160.0% 45.9% 70.3% 0.0% 159.5% -6.8% -38.8% 4.0K -253.4K -622 3.86 80.10 63 243 122 27 2025-12-02 $65.90 $45.00 90.6% 26.0% 151.0% 0.0% 83.1% 0.0% -0.2% 5.1K -966.5K -854 2.15 95.66 108 232 178 266 2025-12-03 $67.53 $44.00 81.5% 23.4% 148.6% 0.0% 84.6% 7.5% -6.2% 5.6K -861.6K -981 1.00 98.48 3 3 168 84 2025-12-04 $64.75 $46.00 76.6% 21.8% 149.4% 0.0% 0.0% -4.8% 25.5% 5.5K -746.8K -947 0.00 72.98 0 1 162 87 2025-12-05 $67.98 $46.00 79.0% 21.6% 149.7% 0.0% 76.4% 10.2% 26.0% 5.3K -828.1K -973 0.60 71.27 10 6 162 87 2025-12-08 $70.66 $55.00 82.5% 22.4% 150.0% 0.0% 67.8% -1.0% 25.8% 4.5K -910.4K -866 0.25 78.05 8 2 161 89 2025-12-09 $69.26 $50.00 78.5% 21.3% 148.3% 0.0% 75.0% 0.2% 30.4% 4.2K -837.0K -848 4.00 79.69 1 4 154 91 2025-12-10 $74.02 $70.00 75.5% 21.6% 149.5% 0.0% 76.8% 3.6% 26.8% 3.8K -916.6K -877 1.67 76.65 6 10 153 95 2025-12-11 $72.83 $70.00 70.5% 20.2% 149.1% 0.0% 69.4% -5.0% 30.3% -137 -889.4K -827 0.42 84.24 12 5 153 106 2025-12-12 $70.17 $70.00 71.1% 20.4% 145.9% 0.0% 66.3% 4.7% 27.9% -306 -762.9K -874 0.25 82.46 24 6 146 109 2025-12-15 $69.19 $70.00 69.5% 19.9% 145.9% 0.0% 0.0% 0.4% 31.1% -209 -744.5K -813 0.00 86.51 3 0 146 105 2025-12-16 $72.00 $70.00 72.7% 20.8% 141.2% 0.0% 74.0% 6.0% 32.1% 384 -822.0K -791 0.90 84.13 10 9 148 105 2025-12-17 $69.97 $70.00 72.8% 20.9% 142.2% 0.0% 76.8% -7.9% 31.6% -988 -776.3K -988 0.36 84.11 11 4 155 110 2025-12-18 $72.78 $70.00 70.6% 20.2% 141.7% 0.0% 74.3% 12.9% 8.3% 1.4K -831.7K -774 3.50 85.69 2 7 146 112 2025-12-19 $74.66 $70.00 66.7% 19.1% 138.8% 0.0% 68.7% 2.9% 7.1% 1.8K -858.1K -762 0.64 90.94 14 9 144 115 2025-12-22 $78.25 $70.00 60.9% 17.5% 137.5% 0.0% 70.5% 11.3% 12.8% -1.5K -258.4K -742 0.00 97.72 0 5 53 39 2025-12-23 $77.97 $75.00 61.5% 17.6% 138.0% 0.0% 75.3% 8.4% 8.9% -2.3K -242.8K -774 3.00 96.61 1 3 53 43 2025-12-24 $76.81 $75.00 64.9% 18.6% 138.7% 0.0% 62.5% 5.1% 5.5% -2.4K -235.8K -796 0.00 98.87 0 3 53 45 2025-12-26 $76.69 $75.00 64.4% 18.5% 137.4% 0.0% 65.0% 6.6% 7.1% -2.9K -231.8K -794 0.00 97.94 0 5 53 48 2025-12-29 $72.37 $75.00 68.4% 19.6% 140.7% 0.0% 75.7% 1.6% 8.8% -3.8K -155.0K -811 0.25 96.86 4 1 53 51 2025-12-30 $71.45 $75.00 64.6% 18.5% 140.4% 0.0% 68.0% 0.3% 14.8% -4.1K -157.4K -797 0.00 99.40 0 1 54 50 2025-12-31 $71.27 $75.00 67.9% 19.5% 55.4% 0.0% 69.6% 1.2% 8.9% -4.4K -141.2K -805 0.00 100.68 0 8 54 51
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