BX Options History — April 2021

In April 2021, BX traded between $74.45 and $89.69. ATM implied volatility averaged 24.7%, placing in the 2.3% IV rank vs the trailing year. The 30-day expected move averaged 6.7%. IV traded above realized volatility by 4.6% (HV 20d: 20.2%). Max pain ranged from $72.50 to $88.00. Net GEX was positive for 21 of 21 trading days. Term structure was in contango for 6 of 21 days. Put/call ratio averaged 0.53.

Notable Days

  • 2021-04-29: Highest Volume — 311,295 contracts
  • 2021-04-22: Largest IV drop — 11.0% change
  • 2021-04-30: Highest IV Rank — 6.1%
  • 2021-04-05: Largest Expected Move — 7.3%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$80.86$74.45$89.69$74.97$88.53
Max Pain$76.83$72.50$88.00$72.50$88.00
ATM IV24.7%21.6%27.4%27.1%23.3%
Expected Move6.7%6.2%7.3%6.3%6.6%
HV 20d20.2%12.9%27.1%27.1%23.3%
HV 60d24.5%23.9%26.3%24.8%24.5%
IV Rank2.3%0.0%6.1%3.6%6.1%
IV Percentile2.7%0.0%12.3%7.9%2.4%
Term Structure-1.1%-4.5%1.0%-4.5%-0.2%
VWIV23.8%21.4%25.5%22.7%24.1%
Skew 25d2.3%0.1%8.9%2.7%2.6%
Skew 10d5.1%-7.6%17.5%8.6%8.0%
Call IV 25d24.3%21.5%27.8%26.0%23.0%
Put IV 25d26.5%23.2%32.7%28.7%25.6%
Bid-Ask Spread %33.7714.0166.0833.5214.01
Gamma HHI0.130.090.360.360.12
Net GEX11.6M8.1M16.6M15.6M8.6M
Net DEX-504.2M-725.5M-342.4M-357.0M-363.4M
Net VEX-1.4M-1.7M-979.7K-1.7M-1.5M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.530.022.080.700.42
Total Volume25,246.5712,297311,2953,22714,478
Total OI182,945171,190202,373177,720177,841

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2021-04-01$74.97$72.5027.1%6.3%27.1%3.6%22.7%2.7%-4.5%15.6M-357.0M-1.7M0.7033.52N/AN/A1,9011,32691,08686,634
2021-04-05$75.13$75.0027.2%7.3%25.9%3.8%25.3%2.9%-0.3%9.7M-364.2M-1.6M0.2237.28N/AN/A1,87642190,05584,297
2021-04-06$74.45$75.0025.8%7.1%25.2%1.3%24.5%2.8%-2.7%9.2M-342.4M-1.6M0.5919.60N/AN/A2,2501,32391,13784,564
2021-04-07$75.44$75.0027.4%7.1%23.8%4.6%24.9%2.8%-2.5%11.2M-379.5M-1.6M0.2638.09N/AN/A3,51389691,74885,352
2021-04-08$76.69$75.0024.4%6.9%23.9%0.0%24.1%8.9%-1.3%16.6M-432.2M-1.6M0.2544.64N/AN/A5,5601,37093,70485,730
2021-04-09$76.62$75.0025.8%6.6%18.3%2.8%23.7%2.1%1.0%15.7M-428.3M-1.5M0.2050.64N/AN/A3,52071894,40386,170
2021-04-12$77.27$75.0026.1%6.7%18.2%3.4%24.6%4.2%-3.7%12.4M-435.0M-1.5M0.8521.57N/AN/A2,7102,30292,15184,689
2021-04-13$78.46$75.0026.4%7.0%18.8%4.1%25.1%0.1%-3.4%12.2M-472.4M-1.5M0.5545.95N/AN/A6,2673,45492,91086,013
2021-04-14$78.23$75.0026.4%6.9%18.8%4.1%24.4%1.5%-2.3%12.2M-459.6M-1.5M0.3844.41N/AN/A5,1421,95193,01886,634
2021-04-15$79.67$75.0026.6%7.2%19.2%4.6%25.5%1.5%-1.9%12.2M-509.0M-1.5M0.1020.22N/AN/A21,2002,16394,30887,583
2021-04-16$79.33$75.0024.5%6.6%14.3%0.2%24.2%3.9%-2.2%10.0M-519.8M-1.4M0.5038.87N/AN/A3,9361,958104,91189,103
2021-04-19$79.40$75.0024.5%7.0%14.0%0.1%24.6%1.5%-0.3%9.2M-468.1M-1.4M0.2419.58N/AN/A2,87770389,69281,498
2021-04-20$79.53$75.0024.9%7.1%13.7%1.0%25.1%1.4%0.8%10.1M-474.1M-1.4M0.5133.66N/AN/A2,7421,40691,74981,928
2021-04-21$80.34$75.0025.1%7.2%12.9%1.5%25.0%1.4%0.3%10.4M-500.4M-1.4M2.0822.70N/AN/A5,28410,97092,51282,204
2021-04-22$82.73$75.0022.4%6.4%14.7%0.0%22.4%2.1%0.7%9.8M-596.7M-1.1M0.9040.82N/AN/A15,92414,38894,95691,709
2021-04-23$87.23$79.0022.0%6.3%22.1%0.0%22.4%1.3%0.1%8.1M-703.1M-979.7K0.7222.42N/AN/A18,64013,45297,54198,999
2021-04-26$87.13$80.0022.4%6.3%22.3%1.5%22.1%1.3%-0.1%8.7M-660.5M-1.1M0.6141.01N/AN/A10,1886,22699,40490,453
2021-04-27$88.45$80.0022.9%6.4%22.4%3.2%22.4%1.0%-0.0%11.6M-696.2M-1.1M0.4015.52N/AN/A11,9744,841101,16292,570
2021-04-28$88.78$82.0022.5%6.2%22.2%1.6%21.9%1.1%-0.3%14.3M-699.9M-1.1M0.6338.51N/AN/A5,5523,481103,52095,534
2021-04-29$89.69$82.0021.6%6.3%22.2%0.0%21.4%0.7%0.5%15.2M-725.5M-1.1M0.0266.08N/AN/A304,8816,414105,06597,308
2021-04-30$88.53$88.0023.3%6.6%23.3%6.1%24.1%2.6%-0.2%8.6M-363.4M-1.5M0.4214.01N/AN/A10,1994,27976,372101,469