BSX Options History — December 2021

In December 2021, BSX traded between $38.40 and $43.28. ATM implied volatility averaged 28.0%, placing in the 36.1% IV rank vs the trailing year. The 30-day expected move averaged 7.8%. IV traded below realized volatility by 2.0% (HV 20d: 29.9%). Max pain ranged from $41.00 to $42.00. Net GEX was positive for 13 of 22 trading days. Term structure was in contango for 11 of 22 days. Put/call ratio averaged 1.70.

Notable Days

  • 2021-12-10: Highest Volume — 25,444 contracts
  • 2021-12-03: Largest IV spike — 41.7% change
  • 2021-12-03: Highest IV Rank — 80.7%
  • 2021-12-03: Largest Expected Move — 10.5%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$41.30$38.40$43.28$38.40$42.69
Max Pain$41.91$41.00$42.00$42.00$42.00
ATM IV28.0%22.4%39.4%31.0%32.7%
Expected Move7.8%6.3%10.5%10.2%6.3%
HV 20d29.9%22.2%36.5%22.2%29.4%
HV 60d24.7%22.0%26.8%22.0%26.2%
IV Rank36.1%14.3%80.7%47.9%54.7%
IV Percentile59.3%13.9%97.6%83.3%91.3%
Term Structure-0.9%-33.1%10.7%-1.3%-33.1%
VWIV30.1%22.5%44.0%30.7%24.3%
Skew 25d6.5%-2.2%19.9%6.6%5.3%
Skew 10d14.2%-0.1%34.1%19.4%-0.1%
Call IV 25d25.9%21.2%33.5%29.0%21.2%
Put IV 25d32.4%26.5%52.3%35.6%26.5%
Bid-Ask Spread %47.0710.9269.8958.4653.00
Gamma HHI0.150.110.220.150.13
Net GEX563.3K-4.5M4.1M-4.5M3.0M
Net DEX-13.4M-99.2M97.8M97.8M-65.0M
Net VEX-920.9K-1.0M-852.4K-968.8K-889.2K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.700.573.480.572.47
Total Volume17,315.59111,97825,44423,31712,954
Total OI203,742.364189,374211,227200,659208,568

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2021-12-01$38.40$42.0031.0%10.2%22.2%47.9%30.7%6.6%-1.3%-4.5M97.8M-968.8K0.5758.46N/AN/A14,8578,46083,676116,983
2021-12-02$39.61$41.0027.8%9.3%25.7%35.4%35.5%12.2%7.4%-2.2M55.5M-973.5K0.8569.89N/AN/A11,2089,51988,432117,801
2021-12-03$39.21$41.0039.4%10.5%25.7%80.7%44.0%19.9%-2.3%-1.3M63.8M-1.0M0.9655.52N/AN/A9,6029,21290,472119,260
2021-12-06$40.75$42.0030.8%9.9%28.7%47.3%35.2%8.1%-0.5%-58.0K2.1M-1.0M0.8536.81N/AN/A10,2508,73589,687116,820
2021-12-07$41.32$42.0027.3%8.1%29.2%33.3%31.9%4.6%-1.6%1.0M-19.7M-970.6K1.0437.16N/AN/A10,01510,38890,352116,964
2021-12-08$41.66$42.0026.0%7.7%29.3%28.6%31.6%6.0%2.1%1.8M-39.7M-950.6K1.0648.62N/AN/A11,46712,14291,060117,169
2021-12-09$41.39$42.0026.8%7.8%29.1%31.7%29.9%5.8%1.0%1.3M-27.3M-940.4K1.1047.40N/AN/A10,33711,34091,792117,977
2021-12-10$41.22$42.0028.8%8.5%28.9%39.3%30.9%4.0%0.8%739.6K-17.8M-911.9K1.1356.19N/AN/A11,93513,50992,136118,169
2021-12-13$41.67$42.0027.4%7.6%29.1%33.8%31.3%6.2%-0.9%2.8M-28.5M-913.9K2.2342.59N/AN/A4,58310,21389,186117,640
2021-12-14$40.89$42.0027.5%7.8%29.1%34.2%37.7%5.0%0.1%126.5K10.4M-918.1K3.4844.94N/AN/A3,08210,73187,943117,789
2021-12-15$40.17$42.0027.9%7.8%29.8%36.0%40.7%5.1%-1.2%-1.1M38.7M-952.2K2.8555.94N/AN/A3,72410,62688,370119,010
2021-12-16$40.36$42.0028.0%7.8%29.7%36.3%30.0%-2.2%3.7%-1.1M34.4M-878.5K2.4847.36N/AN/A5,32013,18788,510118,892
2021-12-17$40.96$42.0026.2%7.2%30.0%29.1%28.0%6.1%-2.9%-3.4M12.2M-935.0K2.1325.77N/AN/A5,46711,64090,403120,824
2021-12-20$39.52$42.0027.8%8.0%32.6%35.6%30.5%7.4%0.1%-2.9M65.9M-881.7K1.9523.07N/AN/A4,6469,04475,167114,207
2021-12-21$40.95$42.0025.7%7.3%35.1%27.1%26.0%4.6%-0.3%-134.8K-1.1M-897.9K1.3955.90N/AN/A5,9448,28376,970114,948
2021-12-22$42.09$42.0024.0%6.9%36.0%20.7%24.9%5.0%7.4%1.9M-45.0M-888.1K2.0851.78N/AN/A4,2418,82479,233114,579
2021-12-23$42.95$42.0024.6%6.5%36.5%23.1%23.2%4.6%10.7%2.5M-72.7M-907.3K2.0910.92N/AN/A3,8718,10779,713115,607
2021-12-27$43.06$42.0026.7%6.7%31.0%31.2%25.6%3.2%2.8%2.6M-75.1M-891.6K1.1138.36N/AN/A7,5738,43079,238117,234
2021-12-28$43.28$42.0022.4%6.4%30.9%14.3%25.0%4.3%3.2%4.1M-99.2M-864.2K1.6462.58N/AN/A4,9328,08682,174118,264
2021-12-29$43.26$42.0023.9%6.5%30.2%20.1%22.5%15.4%-2.7%3.9M-96.6M-854.2K1.5659.72N/AN/A7,48511,66882,699118,952
2021-12-30$43.09$42.0032.6%6.4%30.5%54.1%22.9%6.3%-13.0%3.3M-88.3M-852.4K2.4553.61N/AN/A4,43410,87284,804122,658
2021-12-31$42.69$42.0032.7%6.3%29.4%54.7%24.3%5.3%-33.1%3.0M-65.0M-889.2K2.4753.00N/AN/A3,7329,22285,672122,896