BX Options History — October 2021

In October 2021, BX traded between $110.43 and $142.57. ATM implied volatility averaged 31.0%, placing in the 56.3% IV rank vs the trailing year. The 30-day expected move averaged 8.8%. IV traded below realized volatility by 13.3% (HV 20d: 44.3%). Max pain ranged from $120.00 to $133.00. Net GEX was positive for 15 of 21 trading days. Term structure was in contango for 7 of 21 days. Put/call ratio averaged 0.62.

Notable Days

  • 2021-10-28: Highest Volume — 379,834 contracts
  • 2021-10-20: Largest IV spike — 12.6% change
  • 2021-10-04: Highest IV Rank — 92.2%
  • 2021-10-04: Largest Expected Move — 10.4%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$125.02$110.43$142.57$115.82$138.10
Max Pain$122.76$120.00$133.00$125.00$133.00
ATM IV31.0%26.6%37.9%36.2%27.0%
Expected Move8.8%7.8%10.4%9.6%7.8%
HV 20d44.3%35.3%51.9%46.0%37.5%
HV 60d35.7%34.3%36.9%34.7%36.9%
IV Rank56.3%33.1%92.2%83.3%35.2%
IV Percentile74.3%44.0%97.6%94.8%49.6%
Term Structure-0.3%-2.1%1.0%-2.1%0.9%
VWIV31.6%24.9%37.0%35.0%30.3%
Skew 25d4.3%1.4%8.2%5.9%3.7%
Skew 10d9.9%3.3%21.8%17.3%5.8%
Call IV 25d30.1%25.7%35.3%35.2%26.1%
Put IV 25d34.4%28.0%43.5%41.1%29.8%
Bid-Ask Spread %35.757.0956.5925.097.09
Gamma HHI0.110.070.170.110.11
Net GEX11.4M-4.3M32.3M-4.3M17.5M
Net DEX-672.2M-1.47B-13.5M-155.9M-679.7M
Net VEX-3.2M-3.5M-2.9M-3.2M-3.5M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.620.031.530.720.11
Total Volume48,199.23811,667379,83422,124161,571
Total OI276,903.286247,223298,177285,905248,407

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2021-10-01$115.82$125.0036.2%9.6%46.0%83.3%35.0%5.9%-2.1%-4.3M-155.9M-3.2M0.7225.09N/AN/A12,8869,238147,145138,760
2021-10-04$110.43$125.0037.9%10.4%48.0%92.2%36.0%8.2%-0.2%-3.6M-13.5M-3.1M1.5347.33N/AN/A14,97422,909135,459128,343
2021-10-05$114.97$125.0035.7%9.8%50.9%80.9%34.8%6.5%-0.9%-1.3M-187.3M-3.2M0.7955.93N/AN/A12,3409,787139,241131,939
2021-10-06$113.24$125.0037.9%10.0%50.7%92.1%36.2%5.0%-0.2%-2.1M-123.8M-3.3M0.7345.21N/AN/A9,5426,925144,266138,542
2021-10-07$115.50$125.0034.7%9.6%51.2%75.7%34.8%3.5%-0.3%1.1M-224.9M-3.3M1.0056.34N/AN/A8,9688,958146,397140,546
2021-10-08$116.43$125.0034.0%9.4%51.4%72.0%34.8%5.8%-1.8%1.8M-266.5M-3.3M0.7840.44N/AN/A6,6145,190150,173143,567
2021-10-11$114.81$120.0034.0%9.4%51.4%72.0%34.3%5.6%-1.2%-2.7M-209.3M-3.1M0.8953.08N/AN/A6,1865,481143,192136,316
2021-10-12$115.76$120.0033.7%9.7%51.2%70.5%37.0%5.1%0.1%-1.9M-249.3M-3.2M0.7856.59N/AN/A8,4736,583145,390138,217
2021-10-13$118.54$120.0030.5%8.6%50.3%53.5%31.6%4.9%-0.7%1.2M-387.7M-3.1M0.6351.95N/AN/A8,4475,311147,253141,139
2021-10-14$122.15$120.0029.8%8.8%51.9%50.2%31.6%7.6%0.9%7.0M-618.1M-3.2M0.3946.59N/AN/A15,9276,244149,775144,463
2021-10-15$123.07$120.0027.8%7.8%51.7%39.5%29.1%4.8%-0.9%16.3M-675.4M-3.1M0.5750.53N/AN/A14,3028,202151,748146,429
2021-10-18$123.28$120.0028.9%8.2%37.1%45.2%29.6%5.1%-0.4%10.3M-658.9M-3.2M0.6425.44N/AN/A8,1325,222130,388116,835
2021-10-19$126.48$120.0028.3%8.1%36.2%42.1%28.5%3.9%-0.9%14.6M-813.7M-3.2M0.3419.38N/AN/A15,6015,383134,575120,021
2021-10-20$128.50$120.0031.9%9.1%36.4%60.8%32.2%2.6%-0.3%19.0M-922.0M-3.3M0.5226.44N/AN/A23,49112,262141,495125,006
2021-10-21$132.04$120.0027.9%8.0%37.6%40.1%29.3%1.7%-0.7%32.3M-1.15B-3.2M0.5523.26N/AN/A33,60318,394151,456128,740
2021-10-22$137.84$120.0027.1%7.9%39.8%35.7%28.4%1.4%-1.1%29.2M-1.45B-2.9M0.4326.25N/AN/A28,40012,316154,711134,504
2021-10-25$139.79$120.0027.2%8.0%39.3%36.2%28.8%1.5%0.7%26.4M-1.36B-3.0M0.5227.22N/AN/A21,50011,229142,119122,270
2021-10-26$142.57$125.0026.6%7.9%35.3%33.1%27.7%2.3%0.6%26.3M-1.47B-3.0M0.4915.59N/AN/A20,0979,880146,465125,969
2021-10-27$137.16$125.0027.0%8.1%39.2%35.3%28.0%2.2%1.0%26.0M-1.22B-3.2M0.5317.26N/AN/A20,81310,969151,130128,208
2021-10-28$138.97$125.0027.2%7.9%37.5%36.4%24.9%2.3%1.0%27.0M-1.27B-3.4M0.0333.82N/AN/A369,56510,269153,686130,684
2021-10-29$138.10$133.0027.0%7.8%37.5%35.2%30.3%3.7%0.9%17.5M-679.7M-3.5M0.117.09N/AN/A145,71915,852115,148133,259