BKLN Options History — October 2025

In October 2025, BKLN traded between $20.77 and $20.93. ATM implied volatility averaged 5.9%, placing in the 10.3% IV rank vs the trailing year. The 30-day expected move averaged 1.8%. IV traded above realized volatility by 3.2% (HV 20d: 2.7%). Max pain ranged from $20.00 to $22.00. Net GEX was positive for 0 of 23 trading days. Term structure was in contango for 12 of 23 days. Put/call ratio averaged 24.59.

Notable Days

  • 2025-10-16: Highest Volume — 2,294 contracts
  • 2025-10-16: Largest IV spike — 87.6% change
  • 2025-10-16: Highest IV Rank — 22.8%
  • 2025-10-16: Largest Expected Move — 3.0%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$20.86$20.77$20.93$20.91$20.89
Max Pain$20.52$20.00$22.00$22.00$20.00
ATM IV5.9%3.5%10.3%6.5%6.8%
Expected Move1.8%1.1%3.0%1.9%1.9%
HV 20d2.7%2.3%3.0%2.4%2.9%
HV 60d2.3%2.1%2.5%2.2%2.5%
IV Rank10.3%3.8%22.8%12.1%11.5%
IV Percentile32.2%4.0%59.1%40.9%46.8%
Term Structure1.5%-11.9%16.6%-3.9%7.5%
VWIV10.6%3.4%35.8%6.5%35.8%
Skew 25d2.6%-11.4%55.0%-6.5%-4.1%
Skew 10d4.7%-17.0%68.8%-13.1%-10.1%
Call IV 25d13.8%6.6%20.3%17.9%16.2%
Put IV 25d16.4%7.3%65.2%11.4%12.1%
Bid-Ask Spread %114.02102.94124.44109.49111.73
Gamma HHI0.710.500.890.590.85
Net GEX-3.6M-6.5M-1.7M-5.0M-2.0M
Net DEX10.5M5.0M19.3M12.5M6.8M
Net VEX-34.9K-58.9K-20.6K-45.3K-35.7K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio24.590.25148.333.690.50
Total Volume347.17422,29475204
Total OI23,050.91320,30427,92224,35820,899

Daily Data (23 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2025-10-01$20.91$22.006.5%1.9%2.4%12.1%6.5%-6.5%-3.9%-5.0M12.5M-45.3K3.69109.4916591,22323,135
2025-10-02$20.91$22.006.7%1.9%2.3%12.6%6.7%-8.9%-2.5%-5.0M13.7M-51.6K1.00102.94111,23723,153
2025-10-03$20.93$22.007.2%2.1%2.4%14.0%0.0%-8.0%-3.4%-5.1M10.9M-33.2K0.00108.9201001,23723,153
2025-10-06$20.93$21.005.1%1.4%2.3%8.1%0.0%1.5%-1.7%-6.2M11.2M-31.5K0.00113.93071,23723,152
2025-10-07$20.91$21.007.1%2.7%2.4%13.8%0.0%-8.8%-10.3%-5.0M11.7M-34.2K0.00113.930401,23723,158
2025-10-08$20.89$21.005.5%1.1%2.4%9.2%0.0%48.5%0.8%-6.1M11.9M-27.9K11.15113.16202231,23723,158
2025-10-09$20.87$21.003.5%2.7%2.3%3.8%10.3%-9.2%-10.8%-6.5M13.5M-23.7K0.00116.820661,23723,281
2025-10-10$20.81$21.004.3%2.4%2.5%5.9%0.0%-4.0%-6.1%-4.1M15.9M-35.8K0.00114.2302091,23723,345
2025-10-13$20.86$21.006.4%1.5%2.6%11.9%14.4%-3.5%-2.2%-5.2M16.1M-43.3K0.25116.2873181,23723,488
2025-10-14$20.82$20.008.5%2.9%2.7%17.8%14.1%-10.2%-11.9%-3.6M19.3M-58.9K0.45121.4522101,31023,483
2025-10-15$20.87$20.005.5%1.6%2.9%9.3%0.0%48.9%-3.0%-4.6M13.0M-32.4K0.00124.4401,0281,33223,487
2025-10-16$20.82$20.0010.3%3.0%2.9%22.8%9.7%-11.4%16.6%-3.2M14.7M-45.8K9.24123.952242,0701,33224,487
2025-10-17$20.86$20.005.1%1.5%3.0%8.3%4.9%55.0%7.0%-3.8M13.6M-21.2K74.70112.62302,2411,50026,422
2025-10-20$20.77$20.004.3%1.2%2.8%5.9%3.4%-0.1%1.8%-2.3M6.4M-30.9K18.40105.325921,24619,058
2025-10-21$20.77$20.004.3%1.2%2.8%6.0%0.0%0.9%9.4%-1.8M5.6M-24.4K91.00108.381911,25219,104
2025-10-22$20.80$20.004.5%1.3%2.9%6.5%8.3%-3.0%9.4%-1.9M7.4M-39.6K148.33119.0234451,25219,115
2025-10-23$20.81$20.005.7%1.6%2.8%9.8%5.5%-2.6%7.3%-1.7M6.7M-31.8K8.67113.306521,25219,459
2025-10-24$20.84$20.005.8%1.7%2.9%10.2%0.0%-3.0%-0.3%-2.1M5.0M-20.6K0.00114.580441,25319,472
2025-10-27$20.88$20.006.2%1.8%2.9%11.3%14.2%2.5%7.5%-2.1M6.1M-31.9K12.56117.34253141,25319,486
2025-10-28$20.91$20.005.2%1.5%3.0%8.4%0.0%-4.9%7.6%-1.8M6.6M-38.1K1.05112.4522231,27819,568
2025-10-29$20.89$20.004.7%1.3%3.0%7.0%3.9%-4.6%7.5%-2.0M6.2M-33.2K7.74115.11191471,27819,546
2025-10-30$20.89$20.006.6%1.9%3.0%11.0%35.8%-4.5%7.5%-2.0M6.1M-31.6K4.67113.096281,29719,608
2025-10-31$20.89$20.006.8%1.9%2.9%11.5%0.0%-4.1%7.5%-2.0M6.8M-35.7K0.50111.73136681,29919,600