COST Options History — February 2021

In February 2021, COST traded between $333.37 and $359.60. ATM implied volatility averaged 24.9%, placing in the 12.6% IV rank vs the trailing year. The 30-day expected move averaged 7.1%. IV traded above realized volatility by 7.5% (HV 20d: 17.4%). Max pain ranged from $355.00 to $362.50. Net GEX was positive for 13 of 19 trading days. Term structure was in contango for 8 of 19 days. Put/call ratio averaged 0.67.

Notable Days

  • 2021-02-25: Highest Volume — 50,508 contracts
  • 2021-02-02: Largest IV drop — 10.1% change
  • 2021-02-25: Highest IV Rank — 17.7%
  • 2021-02-25: Largest Expected Move — 8.5%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$351.76$333.37$359.60$351.58$333.37
Max Pain$356.18$355.00$362.50$362.50$355.00
ATM IV24.9%22.9%27.9%27.6%26.8%
Expected Move7.1%5.6%8.5%6.9%8.3%
HV 20d17.4%14.7%19.6%19.3%15.3%
HV 60d16.4%15.4%18.9%18.7%16.2%
IV Rank12.6%9.1%17.7%17.1%15.7%
IV Percentile52.2%38.5%66.7%65.1%63.5%
Term Structure-0.3%-2.0%0.6%-0.5%0.2%
VWIV25.2%20.2%30.1%24.8%29.1%
Skew 25d1.8%0.1%4.7%4.7%1.9%
Skew 10d4.3%1.4%9.5%5.4%9.5%
Call IV 25d24.6%22.4%28.9%27.4%27.3%
Put IV 25d26.4%24.1%32.1%32.1%29.1%
Bid-Ask Spread %61.9853.4668.9155.7760.42
Gamma HHI0.060.050.100.050.05
Net GEX24.8M-37.1M93.8M-12.8M-22.1M
Net DEX-140.6M-738.1M1.03B-21.8M1.03B
Net VEX-10.9M-11.5M-10.2M-10.3M-10.7M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.670.410.850.540.70
Total Volume32,630.31619,33950,50835,43737,759
Total OI268,917.895228,124297,979228,124297,979

Daily Data (19 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2021-02-01$351.58$362.5027.6%6.9%19.3%17.1%24.8%4.7%-0.5%-12.8M-21.8M-10.3M0.5455.7722,96412,473118,906109,218
2021-02-02$356.45$360.0024.8%5.6%19.6%12.3%20.9%1.8%-2.0%37.3M-431.2M-10.4M0.5757.8415,6308,861128,319113,283
2021-02-03$356.15$360.0024.0%5.6%19.3%11.1%20.2%2.3%-0.7%42.6M-415.0M-10.4M0.5060.1612,8666,473130,309114,534
2021-02-04$355.62$360.0022.9%6.9%18.6%9.1%24.1%2.0%0.2%49.6M-348.4M-10.2M0.8560.7223,10019,585132,373116,649
2021-02-05$355.29$355.0023.1%6.7%18.6%9.5%23.8%2.1%-0.2%37.7M-321.9M-10.8M0.7061.6219,04813,429140,167125,154
2021-02-08$359.54$355.0023.6%6.8%19.1%10.4%23.8%1.0%0.2%54.8M-676.7M-10.9M0.4762.4622,91810,882130,525117,090
2021-02-09$359.60$355.0023.0%6.7%18.5%9.3%24.1%1.4%0.2%79.5M-738.1M-11.0M0.7065.0216,44611,475138,015120,566
2021-02-10$355.95$355.0024.8%7.0%18.8%12.4%25.2%0.6%-0.2%51.5M-446.9M-11.1M0.7765.0515,41411,791142,709124,737
2021-02-11$352.82$355.0025.2%7.0%18.2%13.1%25.3%1.6%-1.0%5.1M-115.8M-11.2M0.5763.9421,41812,231145,656130,769
2021-02-12$352.08$355.0023.9%7.1%17.5%10.9%25.0%1.2%0.6%-18.9M-4.5M-11.5M0.8266.6519,77516,304148,500137,014
2021-02-16$354.21$355.0025.0%7.2%17.7%12.8%25.5%1.8%-0.8%31.3M-289.2M-11.1M0.8566.8717,33314,709143,404133,135
2021-02-17$357.89$355.0024.6%7.1%16.3%12.1%25.3%2.1%-1.1%88.1M-684.0M-11.3M0.7962.6721,88117,176148,290137,051
2021-02-18$357.35$355.0024.9%7.2%14.7%12.6%25.2%2.2%-1.0%93.8M-620.6M-11.3M0.8568.9115,49013,152151,577141,559
2021-02-19$355.74$355.0024.4%7.0%14.7%11.7%24.9%1.9%0.2%43.4M-467.1M-11.3M0.5966.3717,49810,382153,378143,797
2021-02-22$350.70$355.0025.1%7.3%15.4%12.8%26.1%0.8%0.4%9.0M-87.2M-11.0M0.7658.9713,91710,554133,860128,923
2021-02-23$342.96$355.0025.2%7.6%17.1%13.0%27.2%3.3%-0.7%-24.8M491.6M-10.5M0.4157.5324,95010,289136,871133,212
2021-02-24$341.10$355.0026.7%7.9%16.4%15.5%28.1%1.4%-0.6%-37.1M572.2M-10.9M0.7053.4618,44212,853141,116135,608
2021-02-25$334.96$355.0027.9%8.5%15.6%17.7%30.1%0.1%0.3%-36.9M902.6M-10.6M0.6063.1331,59418,914147,272137,915
2021-02-26$333.37$355.0026.8%8.3%15.3%15.7%29.1%1.9%0.2%-22.1M1.03B-10.7M0.7060.4222,15815,601155,870142,109