COAL Options History — August 2025 In August 2025, COAL traded between $18.80 and $22.33. ATM implied volatility averaged 60.3%. The 30-day expected move averaged 13.6%. IV traded below realized volatility by 5.3% (HV 20d: 65.6%). Max pain ranged from $17.00 to $19.00. Net GEX was positive for 1 of 21 trading days. Term structure was in contango for 3 of 21 days. Put/call ratio averaged 7.14.
Notable Days 2025-08-25 : Highest Volume — 102 contracts2025-08-21 : Largest IV spike — 72.6% change2025-08-27 : Largest Expected Move — 18.5%Monthly Statistics Metric Avg Min Max Open Close Price $20.42 $18.80 $22.33 $18.80 $21.12 Max Pain $17.52 $17.00 $19.00 $19.00 $18.00 ATM IV 60.3% 33.2% 134.5% 52.0% 45.3% Expected Move 13.6% 9.5% 18.5% 14.9% 13.0% HV 20d 65.6% 41.2% 69.6% 66.3% 69.1% HV 60d 50.9% 48.8% 57.6% 50.2% 57.6% Term Structure -11.6% -33.7% 18.5% -7.6% -16.9% VWIV 27.8% 21.5% 36.2% 21.5% 25.6% Skew 25d 0.3% -25.9% 37.3% -11.2% -6.3% Skew 10d 3.3% -25.2% 48.0% -12.9% -25.2% Call IV 25d 43.8% 29.3% 74.8% 47.6% 46.4% Put IV 25d 44.1% 26.9% 73.0% 36.3% 40.1% Bid-Ask Spread % 139.56 111.59 151.39 129.52 141.23 Gamma HHI 0.43 0.33 0.55 0.47 0.38 Net GEX -2.2K -8.4K 3.9K -3.2K -8.4K Net DEX -94.9K -162.2K 11.9K -24.7K -78.5K Net VEX -740 -1.2K -483 -903 -772 Div Yield 0.0% 0.0% 0.0% 0.0% 0.0% P/C Ratio 7.14 0.00 50.00 0.00 50.00 Total Volume 6.762 0 102 0 0 Total OI 336.476 309 415 319 415
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 $18.80 $19.00 52.0% 14.9% 66.3% 0.0% 0.0% -11.2% -7.6% -3.2K -24.7K -903 0.00 129.52 N/A N/A 0 0 108 211 2025-08-04 $19.71 $17.00 61.8% 14.5% 67.6% 0.0% 0.0% -25.9% -29.6% 3.9K -141.6K -501 0.00 143.08 N/A N/A 0 0 108 211 2025-08-05 $19.80 $17.00 88.6% 14.1% 66.9% 0.0% 0.0% 3.5% -33.7% -1.4K -126.7K -519 0.00 151.14 N/A N/A 0 0 108 211 2025-08-06 $20.70 $17.00 71.8% 15.2% 67.4% 0.0% 0.0% 37.3% -23.6% -1.3K -69.4K -926 0.00 138.92 N/A N/A 0 0 108 211 2025-08-07 $20.54 $17.00 72.0% 13.1% 66.5% 0.0% 21.5% 0.8% -6.4% -626 -151.4K -483 0.00 148.31 N/A N/A 13 0 108 211 2025-08-08 $20.82 $17.00 86.6% 11.4% 66.5% 0.0% 0.0% -0.2% -1.6% -841 -151.3K -533 0.00 142.18 N/A N/A 10 0 109 211 2025-08-11 $21.15 $17.00 82.8% 12.7% 66.2% 0.0% 0.0% 1.1% -6.3% -921 -150.9K -674 0.00 146.35 N/A N/A 0 0 119 211 2025-08-12 $21.50 $17.00 134.5% 13.0% 66.3% 0.0% 0.0% 3.3% -22.7% -730 -162.2K -691 0.00 142.72 N/A N/A 9 0 119 211 2025-08-13 $21.56 $17.00 50.7% 14.5% 66.3% 0.0% 0.0% -10.2% -13.9% -783 -147.7K -640 0.00 142.44 N/A N/A 0 0 112 211 2025-08-14 $20.41 $17.00 39.5% 11.3% 69.6% 0.0% 0.0% -4.1% -5.0% -611 -111.8K -711 0.00 134.37 N/A N/A 4 0 107 211 2025-08-15 $20.38 $17.00 38.0% 10.9% 69.5% 0.0% 0.0% -3.5% 5.0% -1.4K -125.7K -679 0.00 135.28 N/A N/A 0 0 110 211 2025-08-18 $20.31 $17.00 33.2% 9.5% 68.9% 0.0% 36.2% -1.4% 1.0% -1.5K -112.8K -621 0.00 111.59 N/A N/A 0 1 99 210 2025-08-19 $20.05 $18.00 57.2% 16.4% 66.6% 0.0% 25.6% -0.6% -10.2% -1.6K -100.8K -633 0.00 137.04 N/A N/A 2 0 99 211 2025-08-20 $20.52 $18.00 35.8% 10.3% 66.6% 0.0% 0.0% 17.7% 18.5% -1.3K -138.5K -511 0.00 127.43 N/A N/A 0 0 101 211 2025-08-21 $19.44 $18.00 61.8% 17.7% 69.0% 0.0% 0.0% -10.8% -21.2% -4.9K -41.0K -751 0.00 151.39 N/A N/A 1 0 101 211 2025-08-22 $19.63 $18.00 45.1% 12.9% 69.1% 0.0% 0.0% -2.3% -14.0% -2.3K -45.2K -812 0.00 144.87 N/A N/A 0 0 102 211 2025-08-25 $19.97 $18.00 46.9% 13.5% 64.2% 0.0% 0.0% -1.3% -18.7% -1.6K -85.2K -714 50.00 141.87 N/A N/A 2 100 102 211 2025-08-26 $20.00 $18.00 48.5% 13.9% 41.2% 0.0% 0.0% -2.8% -16.3% -6.1K 11.9K -1.2K 0.00 135.73 N/A N/A 0 0 104 311 2025-08-27 $22.33 $18.00 64.6% 18.5% 56.0% 0.0% 0.0% 4.3% -0.7% -3.9K -43.7K -1.2K 0.00 138.15 N/A N/A 0 0 104 311 2025-08-28 $20.17 $18.00 49.0% 14.1% 67.4% 0.0% 0.0% 19.5% -20.2% -5.9K 4.1K -1.1K 0.00 147.14 N/A N/A 0 0 104 311 2025-08-29 $21.12 $18.00 45.3% 13.0% 69.1% 0.0% 0.0% -6.3% -16.9% -8.4K -78.5K -772 0.00 141.23 N/A N/A 0 0 104 311
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