BSX Options History — March 2026

In March 2026, BSX traded between $62.53 and $76.28. ATM implied volatility averaged 45.3%, placing in the 78.7% IV rank vs the trailing year. The 30-day expected move averaged 12.4%. IV traded above realized volatility by 15.0% (HV 20d: 30.3%). Max pain ranged from $75.00 to $80.00. Net GEX was positive for 14 of 22 trading days. Term structure was in contango for 5 of 22 days. Put/call ratio averaged 0.80.

Notable Days

  • 2026-03-30: Highest Volume — 83,465 contracts
  • 2026-03-31: Largest IV drop — 16.0% change
  • 2026-03-27: Highest IV Rank — 100.0%
  • 2026-03-27: Largest Expected Move — 14.9%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$70.01$62.53$76.28$76.28$62.53
Max Pain$76.59$75.00$80.00$80.00$75.00
ATM IV45.3%34.6%52.8%34.6%40.8%
Expected Move12.4%8.9%14.9%8.9%11.7%
HV 20d30.3%22.3%65.0%64.6%38.7%
HV 60d42.2%41.6%46.1%41.7%46.1%
IV Rank78.7%47.9%100.0%47.9%65.8%
IV Percentile97.4%90.5%100.0%93.7%90.5%
Term Structure-1.3%-6.5%2.9%-0.5%-2.5%
VWIV42.3%30.4%49.4%30.4%36.6%
Skew 25d4.8%2.0%13.7%2.4%3.1%
Skew 10d8.4%-9.8%35.9%1.7%3.7%
Call IV 25d43.3%34.5%51.1%34.5%35.3%
Put IV 25d48.1%36.9%59.9%36.9%38.4%
Bid-Ask Spread %34.5215.6973.4046.2027.68
Gamma HHI0.140.090.310.100.13
Net GEX1.8M-20.0M16.5M16.5M-6.0M
Net DEX231.3M41.0M411.4M41.0M381.2M
Net VEX-2.4M-2.8M-1.5M-2.8M-1.6M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.800.093.700.750.29
Total Volume23,970.7276,39583,46510,96922,195
Total OI404,020.864358,585439,221383,813405,871

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2026-03-02$76.28$80.0034.6%8.9%64.6%47.9%30.4%2.4%-0.5%16.5M41.0M-2.8M0.7546.20N/AN/A6,2704,699263,670120,143
2026-03-03$73.86$80.0038.7%9.4%65.0%59.8%33.1%3.1%-1.0%6.5M184.7M-2.6M0.2360.38N/AN/A11,8952,793265,762120,713
2026-03-04$72.75$80.0043.1%9.9%65.0%72.6%35.0%3.1%-2.7%2.5M226.7M-2.6M0.0950.76N/AN/A47,3824,105271,937122,618
2026-03-05$72.61$80.0044.5%12.1%24.4%76.6%40.3%2.7%-3.9%4.8M224.8M-2.7M1.9449.08N/AN/A13,04725,328294,195124,651
2026-03-06$71.42$80.0045.0%12.1%23.7%78.0%39.9%4.1%-4.1%1.4M232.4M-2.7M0.2066.09N/AN/A11,8082,346299,203123,072
2026-03-09$71.91$80.0042.9%12.1%22.5%71.9%41.6%4.1%-0.9%2.3M213.1M-2.5M3.7061.01N/AN/A6,52724,168282,888120,398
2026-03-10$70.22$80.0044.1%12.3%22.5%75.4%41.7%5.9%-0.1%-4.2M333.4M-2.4M0.1673.40N/AN/A14,6452,345284,847125,400
2026-03-11$69.43$75.0046.3%12.6%22.7%81.9%43.3%4.1%-2.0%-4.1M337.1M-2.3M0.2562.57N/AN/A10,5092,632292,487122,998
2026-03-12$68.69$75.0045.2%10.6%22.8%78.7%42.2%3.8%-2.2%-4.3M357.7M-2.3M1.7316.50N/AN/A17,64530,588298,795124,379
2026-03-13$68.77$75.0044.4%10.8%22.6%76.2%45.0%2.0%0.6%-1.5M305.4M-2.4M0.4818.12N/AN/A4,3152,080312,783121,939
2026-03-16$69.41$75.0044.8%12.9%22.7%77.4%43.3%3.7%-0.5%-2.0M296.4M-2.3M0.3015.69N/AN/A9,0102,698288,650121,164
2026-03-17$71.06$75.0043.5%12.3%23.2%73.6%41.6%2.5%2.9%3.2M191.8M-2.5M0.3219.95N/AN/A7,6732,480292,556122,106
2026-03-18$71.22$75.0046.1%13.3%23.3%81.2%44.4%2.4%1.8%6.0M153.9M-2.6M0.2522.91N/AN/A10,5622,624296,898123,160
2026-03-19$70.34$75.0046.5%13.1%23.5%82.2%46.8%4.4%-2.3%459.2K201.2M-2.6M3.3321.07N/AN/A5,25817,513305,363124,472
2026-03-20$69.61$75.0047.7%13.7%23.4%86.0%45.6%4.9%2.7%-20.0M290.6M-2.4M0.4117.33N/AN/A22,1949,168307,687131,534
2026-03-23$69.67$75.0047.4%13.3%23.5%85.0%46.6%13.6%0.6%7.1M151.5M-2.3M0.1823.10N/AN/A15,0572,748254,333104,252
2026-03-24$68.35$75.0048.8%13.8%23.5%89.0%45.9%4.5%-1.1%5.7M188.1M-2.3M0.9020.41N/AN/A9,1628,256266,300106,487
2026-03-25$69.38$75.0049.4%14.4%24.0%90.8%45.0%13.7%-1.8%7.9M152.7M-2.3M0.1626.17N/AN/A14,6202,276270,271105,994
2026-03-26$70.28$75.0050.3%14.4%22.8%93.5%48.0%6.5%-3.8%11.9M79.1M-2.4M0.8620.59N/AN/A9,4498,140277,617107,343
2026-03-27$69.37$75.0052.8%14.9%22.3%100.0%49.4%7.5%-6.5%10.0M134.1M-2.4M0.2921.53N/AN/A13,6574,024286,003114,111
2026-03-30$62.95$75.0048.6%14.0%39.6%88.5%44.3%4.3%-1.6%-4.1M411.4M-1.5M0.7518.83N/AN/A47,69035,775271,989111,420
2026-03-31$62.53$75.0040.8%11.7%38.7%65.8%36.6%3.1%-2.5%-6.0M381.2M-1.6M0.2927.68N/AN/A17,1675,028283,974121,897