BKLN Options History — May 2025

In May 2025, BKLN traded between $20.70 and $21.01. ATM implied volatility averaged 13.3%, placing in the 24.9% IV rank vs the trailing year. The 30-day expected move averaged 2.6%. IV traded above realized volatility by 7.6% (HV 20d: 5.7%). Max pain ranged from $21.00 to $22.00. Net GEX was positive for 0 of 21 trading days. Term structure was in contango for 9 of 21 days. Put/call ratio averaged 66.83.

Notable Days

  • 2025-05-05: Highest Volume — 637 contracts
  • 2025-05-06: Largest IV spike — 335.6% change
  • 2025-05-08: Highest IV Rank — 56.0%
  • 2025-05-07: Largest Expected Move — 6.7%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$20.85$20.70$21.01$20.70$20.86
Max Pain$21.90$21.00$22.00$21.00$22.00
ATM IV13.3%4.8%31.1%4.8%13.0%
Expected Move2.6%1.4%6.7%1.4%3.7%
HV 20d5.7%3.9%11.3%11.3%4.2%
HV 60d6.8%6.6%7.0%6.6%6.9%
IV Rank24.9%5.6%56.0%5.6%31.3%
IV Percentile68.3%29.4%97.6%29.4%79.0%
Term Structure0.3%-10.7%17.4%-3.5%-10.7%
VWIV21.8%6.6%72.1%20.3%26.0%
Skew 25d2.7%-6.1%44.4%1.8%-0.1%
Skew 10d4.0%-21.8%64.9%-7.4%1.0%
Call IV 25d7.9%4.2%18.6%5.7%11.1%
Put IV 25d10.5%7.2%48.6%7.4%11.1%
Bid-Ask Spread %131.16113.22144.80125.17126.72
Gamma HHI0.700.420.930.830.61
Net GEX-7.3M-19.8M-1.4M-3.8M-2.2M
Net DEX25.2M12.3M83.1M13.6M12.5M
Net VEX-89.4K-214.3K-37.4K-83.9K-44.8K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio66.833.04311.50129.009.20
Total Volume257.9521637130102
Total OI151,903.1921,498249,979248,34621,893

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2025-05-01$20.70$21.004.8%1.4%11.3%5.6%20.3%1.8%-3.5%-3.8M13.6M-83.9K129.00125.1711291,387246,959
2025-05-02$20.80$21.0011.9%3.4%10.9%19.1%0.0%-6.0%0.4%-16.5M39.8M-170.7K311.50131.1426231,386247,069
2025-05-05$20.80$22.006.3%2.6%10.4%8.5%6.6%-0.8%-0.2%-2.9M14.3M-80.5K0.00139.6906371,388247,530
2025-05-06$20.80$22.0027.7%1.9%9.2%49.4%0.0%0.8%2.2%-19.8M65.0M-214.3K0.00133.420691,388248,105
2025-05-07$20.81$22.0029.2%6.7%9.2%52.3%0.0%-6.1%-9.1%-19.1M83.1M-213.7K142.00140.9411421,388248,166
2025-05-08$20.86$22.0031.1%1.6%5.3%56.0%0.0%3.4%1.1%-18.3M60.7M-152.0K36.00136.822721,379248,256
2025-05-09$20.88$22.0017.0%3.3%4.2%29.0%0.0%-1.6%-2.9%-11.8M25.1M-85.2K55.50133.0021111,379248,316
2025-05-12$20.98$22.0021.3%1.4%4.3%37.3%0.0%44.4%-0.3%-7.6M17.7M-71.7K0.00128.640301,379248,388
2025-05-13$20.98$22.0021.3%1.7%4.1%37.3%0.0%2.5%2.6%-4.8M13.7M-74.6K40.00132.911401,379248,388
2025-05-14$20.98$22.008.9%2.6%4.1%13.4%0.0%0.7%-3.5%-13.1M31.1M-87.2K0.00113.2201461,380248,388
2025-05-15$20.98$22.006.2%1.8%3.9%8.1%19.7%3.3%-1.1%-9.3M20.7M-76.4K0.00123.6404351,380248,426
2025-05-16$21.01$22.0012.1%3.5%3.9%28.6%0.0%1.3%3.5%-10.2M23.7M-72.6K0.00133.28011,380248,599
2025-05-19$20.84$22.007.0%2.0%4.6%14.2%15.7%2.7%-3.6%-1.6M12.5M-65.3K3.04141.061253801,13520,363
2025-05-20$20.80$22.0010.7%3.1%4.6%24.6%0.0%-2.1%-8.3%-1.8M15.3M-61.9K126.25144.8045051,26020,537
2025-05-21$20.77$22.0013.0%3.7%4.3%31.0%0.0%-2.5%0.9%-2.0M16.2M-64.9K4.27140.18512181,26420,684
2025-05-22$20.80$22.006.7%1.9%4.2%13.5%0.0%3.1%-0.4%-1.7M12.3M-57.5K44.00113.6383521,21320,660
2025-05-23$20.80$22.006.9%2.0%4.2%13.8%10.3%3.0%5.6%-1.8M12.7M-58.9K12.38123.798991,22120,781
2025-05-27$20.80$22.006.2%1.8%4.2%12.0%8.7%2.5%-0.7%-1.4M13.3M-58.2K12.29131.32172091,22920,762
2025-05-28$20.81$22.008.2%2.3%4.1%17.6%17.1%2.6%17.4%-1.9M13.3M-45.9K51.17124.80126141,23520,716
2025-05-29$20.82$22.009.0%2.6%4.1%19.9%72.1%3.1%16.6%-2.3M12.5M-37.4K25.90136.10102591,24420,587
2025-05-30$20.86$22.0013.0%3.7%4.2%31.3%26.0%-0.1%-10.7%-2.2M12.5M-44.8K9.20126.7210921,25420,639