BKLN Options History — April 2026 In April 2026, BKLN traded between $20.45 and $20.66. ATM implied volatility averaged 47.6%, placing in the 51.0% IV rank vs the trailing year. The 30-day expected move averaged 13.7%. IV traded above realized volatility by 43.0% (HV 20d: 4.7%). Max pain ranged from $21.00 to $22.00. Net GEX was positive for 0 of 14 trading days. Term structure was in contango for 9 of 14 days. Put/call ratio averaged 1113.56.
Notable Days 2026-04-17 : Highest Volume — 194,677 contracts2026-04-20 : Largest IV spike — 1383.4% change2026-04-06 : Highest IV Rank — 100.0%2026-04-20 : Largest Expected Move — 64.2%Monthly Statistics Metric Avg Min Max Open Close Price $20.54 $20.45 $20.66 $20.45 $20.55 Max Pain $21.07 $21.00 $22.00 $22.00 $21.00 ATM IV 47.6% 5.4% 223.8% 34.5% 165.9% Expected Move 13.7% 1.6% 64.2% 9.9% 47.6% HV 20d 4.7% 4.2% 5.1% 4.7% 5.1% HV 60d 5.4% 5.2% 5.4% 5.3% 5.4% IV Rank 51.0% 6.5% 100.0% 75.8% 73.8% IV Percentile 81.3% 23.0% 100.0% 96.0% 99.6% Term Structure 28.3% -17.1% 358.6% 7.5% -6.9% VWIV 18.8% 13.9% 23.6% 13.9% 23.6% Skew 25d -3.4% -15.1% 6.3% -0.5% -5.8% Skew 10d 2.9% -16.7% 45.9% -8.1% -16.7% Call IV 25d 25.2% 7.7% 50.6% 33.2% 50.6% Put IV 25d 21.8% 7.6% 44.7% 32.7% 44.7% Bid-Ask Spread % 48.33 29.80 74.72 49.24 74.72 Gamma HHI 0.97 0.92 1.00 0.95 0.98 Net GEX -99.7M -161.9M -65.4M -95.5M -66.3M Net DEX 330.1M 200.2M 408.8M 408.8M 239.7M Net VEX -1.7M -2.1M -1.2M -2.1M -1.3M Div Yield 0.0% 0.0% 0.0% 0.0% 0.0% P/C Ratio 1113.56 0.16 10000.00 83.26 1.75 Total Volume 17,436.929 21 194,677 11,965 378 Total OI 628,651.143 468,775 658,133 647,094 468,775
Daily Data (14 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 2026-04-01 $20.45 $22.00 34.5% 9.9% 4.7% 75.8% 13.9% -0.5% 7.5% -95.5M 408.8M -2.1M 83.26 49.24 142 11,823 4,108 642,986 2026-04-02 $20.48 $21.00 36.7% 10.5% 4.8% 81.0% 0.0% -0.6% 1.2% -89.0M 408.8M -2.1M 13.96 64.07 25 349 4,183 643,003 2026-04-06 $20.48 $21.00 50.1% 14.4% 4.6% 100.0% 0.0% -8.3% 13.6% -100.8M 400.3M -2.0M 3.50 49.26 10 35 4,168 653,930 2026-04-07 $20.48 $21.00 25.4% 7.3% 4.2% 48.4% 0.0% -0.8% 358.6% -161.9M 313.1M -1.5M 1.15 37.54 100 115 4,178 653,955 2026-04-08 $20.59 $21.00 22.1% 6.3% 4.6% 41.4% 0.0% -15.1% -13.2% -85.2M 387.4M -1.9M 9.30 51.86 10 93 4,078 653,875 2026-04-09 $20.57 $21.00 25.1% 7.2% 4.6% 47.8% 0.0% 0.5% -5.5% -92.7M 357.1M -1.8M 9.50 40.88 2 19 4,087 653,918 2026-04-10 $20.51 $21.00 21.9% 6.3% 4.7% 41.1% 23.6% 0.2% -17.1% -110.2M 319.0M -1.7M 0.16 71.89 359 56 3,973 653,913 2026-04-13 $20.51 $21.00 14.3% 4.1% 4.6% 25.1% 0.0% 6.3% 17.0% -65.4M 398.3M -1.8M 0.00 48.23 0 9,345 4,036 653,936 2026-04-14 $20.55 $21.00 21.1% 6.0% 4.6% 39.3% 0.0% 2.2% 4.9% -92.9M 386.1M -1.8M 0.00 46.87 0 10,430 4,036 651,375 2026-04-15 $20.55 $21.00 5.5% 1.6% 4.6% 6.7% 0.0% 0.6% 24.8% -132.7M 297.9M -1.4M 0.00 38.66 0 15,080 4,036 651,344 2026-04-16 $20.55 $21.00 5.4% 1.6% 4.6% 6.5% 0.0% -1.2% 2.5% -124.8M 298.5M -1.4M 1013.00 29.80 1 1,013 3,632 650,995 2026-04-17 $20.66 $21.00 15.1% 4.3% 5.0% 26.8% 0.0% -14.7% 9.8% -96.8M 200.2M -1.2M 10000.00 42.15 3 194,674 3,633 651,980 2026-04-20 $20.56 $21.00 223.8% 64.2% 5.1% 100.0% 0.0% -9.8% -1.6% -81.3M 205.5M -1.2M 1.75 31.39 20 35 2,042 466,941 2026-04-21 $20.55 $21.00 165.9% 47.6% 5.1% 73.8% 0.0% -5.8% -6.9% -66.3M 239.7M -1.3M 0.00 74.72 0 378 2,172 466,603
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