COST Options History — August 2019

In August 2019, COST traded between $265.56 and $296.30. ATM implied volatility averaged 21.0%, placing in the 40.5% IV rank vs the trailing year. The 30-day expected move averaged 6.0%. IV traded above realized volatility by 1.3% (HV 20d: 19.8%). Max pain ranged from $270.00 to $277.50. Net GEX was positive for 22 of 22 trading days. Term structure was in contango for 9 of 22 days. Put/call ratio averaged 0.76.

Notable Days

  • 2019-08-28: Highest Volume — 105,480 contracts
  • 2019-08-05: Largest IV spike — 31.0% change
  • 2019-08-05: Highest IV Rank — 60.2%
  • 2019-08-28: Largest Expected Move — 6.9%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$277.51$265.56$296.30$276.32$294.40
Max Pain$271.14$270.00$277.50$275.00$277.50
ATM IV21.0%18.4%24.6%18.4%21.7%
Expected Move6.0%5.4%6.9%5.9%5.7%
HV 20d19.8%10.8%29.0%10.8%28.2%
HV 60d15.9%13.5%19.1%13.5%18.7%
IV Rank40.5%26.1%60.2%26.1%44.0%
IV Percentile58.7%39.3%85.7%41.7%63.9%
Term Structure0.8%-0.8%5.0%-0.2%5.0%
VWIV21.5%19.3%25.1%20.3%20.2%
Skew 25d4.1%2.9%4.8%2.9%3.1%
Skew 10d8.4%6.0%10.6%6.2%6.1%
Call IV 25d19.3%17.2%22.4%17.6%18.7%
Put IV 25d23.4%20.6%27.1%20.6%21.8%
Bid-Ask Spread %7.234.3711.749.425.22
Gamma HHI0.120.070.470.110.11
Net GEX34.9M560.3K136.9M32.8M52.7M
Net DEX-680.6M-1.32B-123.7M-646.6M-1.18B
Net VEX-4.5M-4.7M-4.1M-4.6M-4.5M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.760.281.340.650.68
Total Volume23,911.3645,640105,48019,68126,652
Total OI161,533.227141,013182,856158,789182,856

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2019-08-01$276.32$275.0018.4%5.9%10.8%26.1%20.3%2.9%-0.2%32.8M-646.6M-4.6M0.659.4211,9627,71976,67182,118
2019-08-02$272.84$275.0018.8%5.7%11.9%28.0%19.3%3.0%-0.0%8.3M-432.8M-4.6M0.749.359,9887,35878,43284,176
2019-08-05$265.56$270.0024.6%6.7%15.3%60.2%23.4%4.7%-0.4%4.9M-123.7M-4.6M1.108.689,24910,13670,45179,848
2019-08-06$269.31$270.0021.7%6.1%16.2%44.2%21.9%4.3%-0.3%17.2M-316.3M-4.7M1.274.407,3169,31673,57680,917
2019-08-07$274.33$270.0021.4%6.0%17.4%42.6%21.9%4.5%-0.4%35.8M-627.1M-4.6M0.8711.7412,08310,53875,30483,350
2019-08-08$274.71$270.0019.5%5.6%16.0%32.1%20.3%4.0%-0.1%59.4M-694.4M-4.5M0.808.419,5927,66980,48689,095
2019-08-09$274.62$270.0019.5%5.6%15.2%32.3%20.3%4.2%-0.0%136.9M-673.1M-4.7M0.8110.598,2516,67583,47393,417
2019-08-12$271.44$270.0021.6%6.3%15.7%43.6%21.8%4.3%0.4%11.2M-434.4M-4.7M1.004.375,1515,14375,40987,925
2019-08-13$276.01$270.0020.2%5.8%16.9%36.1%20.7%4.2%-0.1%40.9M-699.1M-4.7M0.458.9610,2764,65276,96188,733
2019-08-14$268.82$270.0023.2%6.7%19.1%52.5%24.5%4.8%0.3%560.3K-311.6M-4.7M1.347.387,1279,54476,26089,331
2019-08-15$272.67$270.0022.2%6.2%19.9%46.9%22.5%4.8%-0.8%14.8M-507.9M-4.6M0.954.547,1926,82177,21292,631
2019-08-16$274.05$270.0020.2%5.8%20.1%35.8%21.7%4.4%0.2%21.7M-596.7M-4.5M0.724.446,8894,97777,38294,026
2019-08-19$275.69$270.0019.5%5.6%19.9%32.1%20.6%4.0%-0.0%26.7M-610.4M-4.3M1.218.954,6875,68964,67483,514
2019-08-20$274.01$270.0019.4%5.6%20.0%31.6%20.0%3.9%-0.2%17.7M-543.8M-4.2M0.714.945,1513,66166,01285,818
2019-08-21$275.66$270.0019.0%5.4%20.2%29.0%19.6%3.8%-0.3%29.3M-621.8M-4.2M0.495.247,3353,61066,89387,485
2019-08-22$280.38$270.0019.8%5.7%21.1%33.6%19.7%4.2%0.0%65.2M-879.6M-4.1M0.305.5919,5835,84369,64288,193
2019-08-23$274.29$270.0021.9%6.3%22.4%45.4%22.5%4.7%-0.2%14.8M-542.0M-4.5M0.636.3510,8036,82870,81289,206
2019-08-26$277.62$270.0021.5%6.2%22.9%43.2%22.0%4.4%3.6%24.2M-681.1M-4.4M0.758.053,2252,41564,33876,675
2019-08-27$291.84$270.0023.7%6.9%29.0%55.3%25.1%4.3%3.7%32.0M-1.22B-4.1M0.359.4058,05420,61066,66977,465
2019-08-28$294.36$272.5023.6%6.9%28.6%54.9%23.8%3.4%3.8%42.6M-1.32B-4.4M0.286.2182,50122,97978,61386,949
2019-08-29$296.30$275.0021.1%5.8%28.6%40.8%21.6%3.2%4.3%77.4M-1.31B-4.5M0.616.8725,38015,42088,43692,297
2019-08-30$294.40$277.5021.7%5.7%28.2%44.0%20.2%3.1%5.0%52.7M-1.18B-4.5M0.685.2215,86710,78590,11992,737