COST Options History — October 2020

In October 2020, COST traded between $356.33 and $382.21. ATM implied volatility averaged 25.4%, placing in the 18.7% IV rank vs the trailing year. The 30-day expected move averaged 7.3%. IV traded above realized volatility by 8.3% (HV 20d: 17.0%). Max pain ranged from $330.00 to $370.00. Net GEX was positive for 20 of 22 trading days. Term structure was in contango for 8 of 22 days. Put/call ratio averaged 0.73.

Notable Days

  • 2020-10-16: Highest Volume — 54,071 contracts
  • 2020-10-28: Largest IV spike — 14.0% change
  • 2020-10-30: Highest IV Rank — 24.7%
  • 2020-10-30: Largest Expected Move — 9.2%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$370.22$356.33$382.21$357.78$357.84
Max Pain$358.86$330.00$370.00$330.00$370.00
ATM IV25.4%23.0%29.1%24.5%29.1%
Expected Move7.3%6.2%9.2%6.2%9.2%
HV 20d17.0%14.4%24.9%24.9%19.1%
HV 60d18.9%18.1%19.6%19.2%19.6%
IV Rank18.7%14.9%24.7%17.3%24.7%
IV Percentile62.9%54.8%71.4%62.7%71.4%
Term Structure-0.2%-2.6%3.1%1.3%0.5%
VWIV26.0%22.3%31.8%22.3%31.8%
Skew 25d2.9%0.7%4.9%2.6%4.2%
Skew 10d6.2%0.3%10.2%3.8%10.2%
Call IV 25d24.5%21.5%30.1%23.0%30.1%
Put IV 25d27.3%23.7%34.4%25.6%34.4%
Bid-Ask Spread %30.223.7159.993.7150.53
Gamma HHI0.090.050.230.090.08
Net GEX58.8M-19.2M142.8M104.6M-19.2M
Net DEX-1.59B-2.65B-20.8M-1.82B-20.8M
Net VEX-8.2M-8.8M-7.7M-8.3M-8.8M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.730.451.490.811.49
Total Volume30,057.72713,46854,07136,03840,196
Total OI244,131.227203,054280,284271,668232,516

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2020-10-01$357.78$330.0024.5%6.2%24.9%17.3%22.3%2.6%1.3%104.6M-1.82B-8.3M0.813.7119,94716,091144,984126,684
2020-10-02$356.33$335.0024.4%6.2%21.0%17.1%22.4%2.2%3.1%71.4M-1.65B-8.4M0.904.0316,82815,217145,872134,412
2020-10-05$358.01$345.0025.3%7.7%21.1%18.6%28.0%4.4%0.5%68.6M-1.57B-8.1M0.6459.9911,4027,280125,301122,663
2020-10-06$357.98$345.0026.2%7.6%18.8%20.0%27.2%3.9%-0.5%76.8M-1.57B-8.0M0.6632.4023,37815,460127,969125,228
2020-10-07$363.31$345.0025.9%7.1%17.6%19.6%25.7%3.6%0.2%105.5M-1.95B-8.0M0.4820.8522,32010,711133,010130,002
2020-10-08$365.13$350.0024.8%7.1%15.4%17.9%25.6%3.7%-0.6%119.0M-2.06B-8.0M0.4510.4318,4728,294137,181131,491
2020-10-09$369.34$350.0023.0%6.8%15.4%14.9%25.1%2.7%-0.4%142.8M-2.33B-7.9M0.6321.6519,85212,513137,842133,302
2020-10-12$376.79$355.0024.8%6.7%16.0%17.8%24.3%0.7%-2.6%97.8M-2.44B-7.7M0.7032.4330,95121,785125,515125,890
2020-10-13$381.43$360.0023.5%6.6%16.1%15.8%23.7%1.7%-0.7%88.7M-2.56B-7.7M0.5815.5217,72210,330126,761129,077
2020-10-14$379.44$360.0024.1%6.7%16.5%16.7%24.1%3.3%-0.6%83.5M-2.43B-7.8M0.6215.0518,16311,318128,970133,945
2020-10-15$377.25$360.0023.2%6.6%14.6%15.2%23.2%2.2%-0.3%67.9M-2.27B-7.9M0.668.4416,59310,989131,775136,057
2020-10-16$382.21$360.0024.5%6.9%14.4%17.3%24.7%1.0%-0.8%105.8M-2.65B-7.8M0.524.8935,48918,582134,137139,302
2020-10-19$376.24$370.0025.2%7.2%16.4%18.5%25.4%1.9%-0.9%36.0M-1.28B-8.2M1.0942.2516,38417,81997,080105,974
2020-10-20$379.85$370.0025.7%7.4%15.6%19.2%26.3%2.1%-1.0%47.8M-1.46B-8.4M0.6440.3514,3829,275101,541113,052
2020-10-21$378.44$370.0025.7%7.4%15.8%19.3%26.9%2.2%-1.4%34.4M-1.36B-8.3M0.7437.347,7525,716104,051117,188
2020-10-22$375.93$370.0025.4%7.3%16.3%18.9%25.9%2.2%-0.9%14.8M-1.18B-8.6M0.5841.6315,4528,989106,206119,194
2020-10-23$374.43$370.0024.2%7.0%15.4%16.9%24.7%2.3%-0.6%9.2M-1.10B-8.3M0.9935.2710,25210,181108,695121,617
2020-10-26$369.58$370.0026.2%7.8%15.5%20.1%27.8%3.5%0.1%3.5M-842.2M-8.2M0.6341.4817,39510,93597,618109,425
2020-10-27$373.40$370.0025.4%7.6%15.5%18.8%26.7%4.9%0.0%33.7M-1.10B-8.4M0.5347.5216,7528,932102,814113,778
2020-10-28$367.33$370.0028.9%8.5%16.9%24.4%30.3%3.6%0.5%-1.2M-691.6M-8.8M0.7450.7111,1288,278106,238118,472
2020-10-29$366.83$370.0027.8%8.3%16.8%22.6%29.2%4.0%-0.1%1.3M-606.0M-8.7M0.9648.4211,09510,670106,810121,248
2020-10-30$357.84$370.0029.1%9.2%19.1%24.7%31.8%4.2%0.5%-19.2M-20.8M-8.8M1.4950.5316,12724,069108,149124,367