COST Options History — May 2018

In May 2018, COST traded between $192.80 and $199.83. ATM implied volatility averaged 21.7%, placing in the 47.2% IV rank vs the trailing year. The 30-day expected move averaged 6.3%. IV traded above realized volatility by 6.3% (HV 20d: 15.4%). Max pain ranged from $180.00 to $190.00. Net GEX was positive for 22 of 22 trading days. Term structure was in contango for 0 of 22 days. Put/call ratio averaged 0.78.

Notable Days

  • 2018-05-31: Highest Volume — 59,541 contracts
  • 2018-05-29: Largest IV spike — 8.1% change
  • 2018-05-29: Highest IV Rank — 53.5%
  • 2018-05-31: Largest Expected Move — 7.8%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$196.76$192.80$199.83$196.16$198.26
Max Pain$185.14$180.00$190.00$190.00$188.00
ATM IV21.7%20.1%23.0%21.5%23.0%
Expected Move6.3%5.3%7.8%5.3%7.8%
HV 20d15.4%12.9%19.2%18.3%13.9%
HV 60d20.6%19.6%22.9%22.9%19.9%
IV Rank47.2%39.6%53.5%46.4%53.5%
IV Percentile83.0%70.6%91.3%84.5%90.9%
Term Structure-0.7%-1.5%-0.3%-0.5%-1.5%
VWIV22.5%19.3%27.0%19.3%27.0%
Skew 25d3.0%2.5%3.5%3.3%2.9%
Skew 10d6.0%4.8%8.0%6.7%4.9%
Call IV 25d20.6%18.8%21.8%20.5%21.8%
Put IV 25d23.6%21.7%25.0%23.8%24.8%
Bid-Ask Spread %8.145.3214.687.4812.05
Gamma HHI0.160.110.300.120.13
Net GEX41.2M25.8M63.6M31.7M41.3M
Net DEX-653.0M-895.6M-498.5M-657.6M-654.2M
Net VEX-3.7M-4.0M-3.4M-3.9M-3.7M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.780.372.771.070.72
Total Volume21,535.31811,86959,54113,02259,541
Total OI201,487.318179,021214,662184,943210,202

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2018-05-01$196.16$190.0021.5%5.3%18.3%46.4%19.3%3.3%-0.5%31.7M-657.6M-3.9M1.077.486,2856,73784,436100,507
2018-05-02$194.19$190.0022.3%5.4%18.2%50.2%19.3%3.2%-0.6%25.8M-560.2M-3.8M0.6212.2914,0578,68885,572102,978
2018-05-03$193.03$180.0022.9%6.2%18.5%52.9%22.7%3.0%-0.7%32.7M-523.6M-4.0M0.886.7510,3399,12193,886106,848
2018-05-04$195.82$180.0022.1%6.1%18.1%49.1%21.2%2.5%-0.6%41.9M-725.7M-3.9M0.926.528,1517,52595,258108,444
2018-05-07$192.80$180.0022.4%6.1%19.2%50.8%21.8%2.9%-0.9%32.7M-498.5M-3.9M1.477.398,07911,85292,781107,478
2018-05-08$194.13$180.0022.2%6.1%18.7%49.9%22.4%3.2%-0.7%39.1M-578.6M-3.9M2.777.686,24317,27895,853109,978
2018-05-09$195.88$183.0022.3%6.2%18.7%50.0%22.9%3.1%-0.6%49.7M-706.6M-3.9M0.728.729,9487,18796,557110,663
2018-05-10$195.22$185.0021.5%6.0%17.2%46.3%21.9%3.4%-0.6%52.5M-611.1M-3.8M0.666.7410,3006,75594,835111,996
2018-05-11$195.65$185.0021.0%5.9%17.1%43.7%21.1%3.3%-0.7%56.9M-651.2M-3.8M0.887.156,3115,55897,526112,769
2018-05-14$195.98$185.0021.2%6.0%13.2%44.7%20.5%3.1%-0.3%53.2M-675.4M-3.5M0.645.4910,2196,54792,942110,652
2018-05-15$195.26$185.0021.7%6.2%12.9%47.5%21.9%3.5%-0.7%48.2M-617.5M-3.6M0.568.6413,4957,58494,404111,495
2018-05-16$198.54$185.0021.1%6.1%14.2%44.5%22.7%3.3%-0.3%63.6M-832.8M-3.4M0.536.6418,91310,11594,063112,874
2018-05-17$199.69$185.0021.2%6.1%14.1%44.7%21.7%3.1%-0.8%61.1M-895.6M-3.4M0.436.3820,1888,70095,827115,468
2018-05-18$198.62$185.0020.8%6.0%13.6%43.0%21.5%3.0%-0.4%31.5M-768.0M-3.5M0.565.3212,7897,12597,359117,303
2018-05-21$199.19$185.0020.1%6.0%13.6%39.6%20.8%2.9%-0.6%29.4M-625.1M-3.4M0.377.7817,6226,52276,344102,677
2018-05-22$199.34$185.0020.7%6.3%13.2%42.4%22.2%2.8%-0.5%39.4M-653.4M-3.5M0.399.3915,5426,10585,941104,060
2018-05-23$197.77$185.0021.4%6.5%13.1%45.9%23.2%2.5%-0.8%32.5M-591.1M-3.7M0.659.608,8065,74793,246105,365
2018-05-24$198.81$188.0021.1%6.4%12.9%44.3%23.8%2.8%-0.6%39.5M-651.1M-3.8M0.787.476,7035,24695,282106,878
2018-05-25$197.96$188.0021.3%6.6%13.0%45.1%23.7%2.7%-0.9%29.4M-608.5M-3.7M0.616.528,4635,14896,137107,788
2018-05-29$196.56$188.0023.0%7.5%13.1%53.5%26.6%3.3%-0.9%28.1M-525.4M-3.6M0.5214.6815,2137,93889,945104,733
2018-05-30$199.83$188.0022.4%7.4%14.1%50.5%26.6%2.6%-1.2%47.2M-755.7M-3.6M0.478.5019,7289,36496,431106,940
2018-05-31$198.26$188.0023.0%7.8%13.9%53.5%27.0%2.9%-1.5%41.3M-654.2M-3.7M0.7212.0534,69124,85099,876110,326