BSX Options History — August 2023

In August 2023, BSX traded between $50.17 and $54.80. ATM implied volatility averaged 24.4%, placing in the 31.1% IV rank vs the trailing year. The 30-day expected move averaged 7.1%. IV traded above realized volatility by 6.5% (HV 20d: 17.9%). Max pain ranged from $50.50 to $52.50. Net GEX was positive for 9 of 23 trading days. Term structure was in contango for 6 of 23 days. Put/call ratio averaged 1.07.

Notable Days

  • 2023-08-28: Highest Volume — 57,510 contracts
  • 2023-08-28: Largest IV drop — 32.2% change
  • 2023-08-25: Highest IV Rank — 58.7%
  • 2023-08-25: Largest Expected Move — 10.4%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$51.48$50.17$54.80$51.88$54.11
Max Pain$51.85$50.50$52.50$52.50$51.00
ATM IV24.4%17.6%33.0%17.6%18.7%
Expected Move7.1%4.3%10.4%5.1%4.5%
HV 20d17.9%12.9%24.9%15.8%23.6%
HV 60d18.4%16.0%20.2%19.1%19.9%
IV Rank31.1%9.3%58.7%9.3%12.6%
IV Percentile54.6%7.1%91.7%7.1%11.5%
Term Structure-0.7%-3.6%3.4%3.4%-0.2%
VWIV24.9%17.0%37.4%17.9%17.1%
Skew 25d2.9%1.8%5.2%2.1%2.2%
Skew 10d6.1%2.9%11.3%2.9%5.6%
Call IV 25d23.8%17.0%30.9%19.0%17.3%
Put IV 25d26.7%19.3%36.1%21.1%19.6%
Bid-Ask Spread %25.2311.3166.2247.4815.98
Gamma HHI0.300.130.660.310.30
Net GEX4.8M-48.0M69.1M-3.4M69.1M
Net DEX-108.3M-597.5M36.8M-31.5M-499.7M
Net VEX-1.5M-1.8M-1.3M-1.4M-1.5M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.070.113.391.240.46
Total Volume16,255.131,74457,5103,8557,316
Total OI243,658.391194,424322,565207,994322,565

Daily Data (23 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2023-08-01$51.88$52.5017.6%5.1%15.8%9.3%17.9%2.1%3.4%-3.4M-31.5M-1.4M1.2447.48N/AN/A1,7192,13698,739109,255
2023-08-02$50.70$52.5021.6%6.2%17.5%22.0%21.2%3.3%2.5%-9.1M36.8M-1.4M0.1117.22N/AN/A10,5881,11699,832111,369
2023-08-03$50.92$52.5021.1%6.7%17.7%20.5%22.5%2.6%0.1%-6.3M9.6M-1.4M1.3666.22N/AN/A7381,006104,288111,495
2023-08-04$50.73$52.5020.3%6.7%17.3%17.8%22.7%1.9%0.0%-9.2M29.2M-1.4M1.7731.89N/AN/A2,3844,228104,629111,365
2023-08-07$50.64$52.5020.4%6.5%17.2%18.1%22.5%2.1%0.2%-10.6M34.5M-1.4M0.2116.89N/AN/A1,986422106,435111,769
2023-08-08$50.69$52.5023.0%7.1%17.2%26.6%24.6%2.8%-1.6%-10.0M28.2M-1.4M1.6137.63N/AN/A4,3907,069107,520109,813
2023-08-09$51.20$52.5023.2%6.7%17.7%27.3%22.7%2.5%-0.5%-5.8M-23.7M-1.3M0.4116.44N/AN/A1,828742107,932108,339
2023-08-10$50.91$52.5023.2%6.6%17.3%27.1%22.0%2.6%-0.0%-8.7M-2.7M-1.3M1.2713.91N/AN/A1,0781,373108,640110,666
2023-08-11$51.09$52.5026.3%7.5%17.4%37.1%25.6%3.0%-2.3%-8.3M-17.3M-1.3M0.6811.90N/AN/A6,3504,294108,980110,695
2023-08-14$51.39$52.5023.4%6.7%17.5%27.8%24.3%2.8%-1.1%-3.4M-54.7M-1.3M2.1214.37N/AN/A1,1992,539115,320111,898
2023-08-15$51.70$52.5024.9%7.2%17.7%32.8%26.0%2.8%-2.1%-1.9M-67.5M-1.4M0.5911.31N/AN/A7,8114,582115,744113,573
2023-08-16$51.50$52.5027.5%7.9%17.6%41.0%28.3%1.8%-3.6%-3.1M-61.6M-1.4M1.7549.91N/AN/A7,57213,246120,366116,449
2023-08-17$50.95$52.5027.5%7.9%16.2%41.1%26.1%3.5%-0.4%-3.9M-36.4M-1.4M1.0612.76N/AN/A8,2188,706126,484120,658
2023-08-18$50.17$52.5028.3%8.2%16.8%43.6%29.0%2.9%-1.1%-48.0M6.7M-1.4M3.3912.72N/AN/A4,24014,387131,555119,316
2023-08-21$50.50$52.5029.0%8.3%15.8%45.7%31.3%3.3%-0.8%1.9M-9.4M-1.5M1.4024.78N/AN/A9,06012,71294,338100,086
2023-08-22$50.45$50.5030.3%9.1%15.6%50.0%30.3%3.7%-2.0%1.3M-11.7M-1.5M0.1340.54N/AN/A27,5523,679102,308112,455
2023-08-23$50.36$50.5029.7%8.7%15.6%47.9%30.6%3.2%-1.6%5.3M-22.9M-1.6M0.7720.14N/AN/A30,64923,714125,436114,917
2023-08-24$50.50$50.5031.5%9.4%15.1%53.8%32.0%3.7%-2.1%10.6M-78.9M-1.8M1.5216.51N/AN/A6,1869,396154,739118,048
2023-08-25$50.80$50.5033.0%10.4%12.9%58.7%37.4%5.2%-2.0%10.8M-102.2M-1.8M0.9415.39N/AN/A14,58813,674159,304126,759
2023-08-28$53.77$50.5022.4%5.5%24.2%24.5%20.9%3.3%-1.0%47.2M-481.9M-1.6M0.5148.09N/AN/A38,15319,357168,674137,392
2023-08-29$54.80$50.5020.8%5.0%24.9%19.3%19.7%3.2%-0.3%41.7M-597.5M-1.5M0.9124.20N/AN/A12,33711,211172,674141,899
2023-08-30$54.31$51.0018.1%4.3%23.4%10.6%17.0%2.2%0.1%53.6M-535.4M-1.6M0.4614.12N/AN/A5,7222,615171,104148,321
2023-08-31$54.11$51.0018.7%4.5%23.6%12.6%17.1%2.2%-0.2%69.1M-499.7M-1.5M0.4615.98N/AN/A5,0022,314172,428150,137