BSX Options History — August 2009

In August 2009, BSX traded between $10.91 and $11.75. ATM implied volatility averaged 37.0%, placing in the 4.0% IV rank vs the trailing year. The 30-day expected move averaged 10.8%. IV traded above realized volatility by 12.4% (HV 20d: 24.7%). Max pain ranged from $10.00 to $11.00. Net GEX was positive for 21 of 21 trading days. Term structure was in contango for 21 of 21 days. Put/call ratio averaged 0.91.

Notable Days

  • 2009-08-31: Highest Volume — 19,045 contracts
  • 2009-08-25: Largest IV drop — 11.5% change
  • 2009-08-10: Highest IV Rank — 9.6%
  • 2009-08-07: Largest Expected Move — 11.7%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$11.26$10.91$11.75$11.02$11.75
Max Pain$10.38$10.00$11.00$10.00$11.00
ATM IV37.0%32.4%40.4%37.3%35.8%
Expected Move10.8%9.3%11.7%10.7%10.3%
HV 20d24.7%20.6%27.7%27.7%20.9%
HV 60d31.0%27.7%34.4%34.4%28.0%
IV Rank4.0%0.0%9.6%7.4%2.5%
IV Percentile3.9%0.0%10.3%2.0%1.6%
Term Structure3.9%1.6%6.6%1.6%2.0%
VWIV37.3%32.0%40.7%37.9%37.1%
Skew 25d6.4%-1.3%16.6%15.2%-0.6%
Skew 10d12.1%-4.8%54.6%54.6%-4.8%
Call IV 25d33.2%26.2%39.5%28.7%38.0%
Put IV 25d39.6%29.9%43.9%43.9%37.4%
Bid-Ask Spread %10.766.2816.988.548.71
Gamma HHI0.400.300.580.390.36
Net GEX1.4M625.6K2.4M1.3M767.5K
Net DEX-55.9M-73.4M-40.8M-50.2M-51.1M
Net VEX-448.4K-455.9K-442.5K-442.5K-451.4K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.910.028.260.130.92
Total Volume5,607.0481,94719,0458,39319,045
Total OI235,334.667202,439254,939233,041212,920

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2009-08-03$11.02$10.0037.3%10.7%27.7%7.4%37.9%15.2%1.6%1.3M-50.2M-442.5K0.138.54N/AN/A7,413980128,982104,059
2009-08-04$11.00$10.0038.5%11.0%27.6%8.3%38.7%11.6%1.8%1.3M-51.6M-451.2K0.286.90N/AN/A2,590713133,033104,114
2009-08-05$11.18$10.0038.3%11.0%27.4%8.2%36.6%16.6%2.7%1.4M-59.8M-451.5K0.036.28N/AN/A5,801153134,656104,042
2009-08-06$11.17$10.0038.4%11.0%25.5%8.2%40.7%16.5%2.9%1.5M-60.9M-455.5K0.308.67N/AN/A1,502445138,414104,161
2009-08-07$11.32$10.0037.4%11.7%25.3%7.5%39.9%3.6%4.9%1.5M-67.8M-455.2K0.3711.89N/AN/A3,5421,304138,744104,294
2009-08-10$11.22$10.0040.4%11.3%24.6%9.6%39.3%5.4%5.8%1.6M-63.3M-452.5K0.5316.75N/AN/A1,513795139,772105,053
2009-08-11$11.03$10.0035.9%11.2%25.3%6.4%39.3%2.8%6.6%1.8M-55.6M-443.1K0.2210.97N/AN/A3,166697140,328105,092
2009-08-12$11.20$10.0035.8%11.7%25.6%6.4%40.1%5.4%3.8%1.8M-63.6M-447.0K3.5610.81N/AN/A1,2954,614140,868105,066
2009-08-13$11.04$10.0039.3%11.3%26.5%3.3%39.5%7.2%5.4%1.9M-54.6M-450.6K0.4610.39N/AN/A2,6121,210140,831108,716
2009-08-14$11.14$10.0038.6%11.1%25.0%2.1%38.8%1.8%6.0%1.9M-59.8M-450.9K0.1712.17N/AN/A1,767300141,365108,950
2009-08-17$10.91$10.0038.9%11.2%25.4%2.3%38.9%2.7%4.2%2.0M-49.5M-443.3K0.1912.85N/AN/A3,053588142,114109,160
2009-08-18$11.17$10.0038.7%11.1%26.5%2.2%38.7%0.9%6.2%2.3M-64.2M-445.0K0.379.87N/AN/A1,700625142,262109,132
2009-08-19$11.24$10.0038.9%11.1%25.5%2.3%37.9%6.0%4.6%2.4M-67.9M-443.2K8.2611.15N/AN/A7296,019142,497109,323
2009-08-20$11.32$11.0039.1%11.2%24.2%2.4%36.8%7.2%4.4%1.2M-71.8M-442.7K0.2916.98N/AN/A4,3761,261141,274112,813
2009-08-21$11.37$11.0036.6%10.5%24.0%0.6%35.7%7.2%6.2%1.1M-73.4M-445.7K0.028.92N/AN/A17,154274141,580113,359
2009-08-24$11.46$11.0036.6%10.5%23.6%0.6%33.4%10.9%2.7%625.6K-40.8M-448.3K1.0710.87N/AN/A2,2902,450111,15891,281
2009-08-25$11.57$11.0032.4%9.3%23.0%0.0%36.4%12.3%2.2%670.2K-43.9M-446.6K0.289.06N/AN/A2,508693112,61292,464
2009-08-26$11.43$11.0033.3%9.6%22.6%0.7%32.5%0.2%3.8%692.2K-41.0M-449.9K0.7712.87N/AN/A2,6522,051113,98692,817
2009-08-27$11.49$11.0034.2%9.8%20.6%1.3%32.0%3.0%1.9%694.2K-42.9M-445.2K0.4710.45N/AN/A3,5971,687115,26193,527
2009-08-28$11.44$11.0033.4%9.6%20.8%0.7%33.4%-1.3%2.1%704.4K-41.1M-455.9K0.3510.82N/AN/A1,910674117,62494,324
2009-08-31$11.75$11.0035.8%10.3%20.9%2.5%37.1%-0.6%2.0%767.5K-51.1M-451.4K0.928.71N/AN/A9,8979,148118,12794,793