COST Options History — May 2023

In May 2023, COST traded between $483.69 and $513.53. ATM implied volatility averaged 22.7%, placing in the 13.8% IV rank vs the trailing year. The 30-day expected move averaged 6.5%. IV traded above realized volatility by 5.8% (HV 20d: 16.9%). Max pain ranged from $495.00 to $500.00. Net GEX was positive for 12 of 22 trading days. Term structure was in contango for 7 of 22 days. Put/call ratio averaged 0.77.

Notable Days

  • 2023-05-26: Highest Volume — 165,582 contracts
  • 2023-05-26: Largest IV drop — 23.6% change
  • 2023-05-25: Highest IV Rank — 25.3%
  • 2023-05-25: Largest Expected Move — 7.9%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$497.34$483.69$513.53$494.40$513.53
Max Pain$499.32$495.00$500.00$497.50$500.00
ATM IV22.7%19.4%25.4%22.4%19.9%
Expected Move6.5%5.5%7.9%5.6%6.0%
HV 20d16.9%12.6%20.1%20.0%18.5%
HV 60d17.4%16.9%18.6%18.0%17.8%
IV Rank13.8%3.7%25.3%12.3%7.6%
IV Percentile15.9%2.4%36.1%9.9%3.2%
Term Structure-0.3%-0.8%0.3%-0.3%-0.1%
VWIV23.0%19.9%29.3%19.9%21.6%
Skew 25d4.7%3.6%5.7%4.7%3.6%
Skew 10d9.3%5.9%10.8%9.0%6.9%
Call IV 25d20.6%17.3%24.7%20.4%18.6%
Put IV 25d25.3%21.4%28.5%25.0%22.1%
Bid-Ask Spread %5.943.419.283.743.77
Gamma HHI0.050.030.200.040.07
Net GEX30.2M-63.6M181.6M-12.7M152.3M
Net DEX-319.9M-1.63B394.7M20.2M-1.48B
Net VEX-11.2M-11.6M-10.7M-11.1M-11.6M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.770.381.110.700.38
Total Volume40,639.81817,811165,58242,02849,087
Total OI227,382.727198,993279,119198,993248,418

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2023-05-01$494.40$497.5022.4%5.6%20.0%12.3%19.9%4.7%-0.3%-12.7M20.2M-11.1M0.703.7424,76317,26589,897109,096
2023-05-02$493.92$495.0023.1%5.9%20.0%14.5%21.3%5.0%-0.5%-15.2M25.7M-11.5M0.764.0510,1167,69595,452116,862
2023-05-03$490.72$495.0024.1%6.4%20.1%17.6%22.0%4.8%-0.3%-32.6M198.0M-11.4M0.916.6618,38216,78897,529119,229
2023-05-04$489.63$500.0024.6%7.0%20.1%19.1%24.6%5.7%-0.4%-63.6M301.5M-11.6M1.019.1517,70817,905101,366126,929
2023-05-05$498.67$500.0022.1%6.4%18.9%11.6%21.3%4.9%0.1%87.5M-444.2M-11.5M0.839.2820,39316,885103,765128,193
2023-05-08$499.22$500.0022.6%6.5%18.3%13.0%23.0%5.0%0.1%30.7M-395.6M-11.4M1.046.0510,08710,47596,194114,590
2023-05-09$501.55$500.0022.8%6.6%17.8%13.7%23.2%5.0%0.3%55.6M-548.1M-11.5M1.016.809,1759,24499,798118,697
2023-05-10$499.87$500.0022.8%6.6%16.8%13.6%22.8%5.0%0.1%43.4M-415.3M-11.5M1.066.4114,37015,176101,319120,345
2023-05-11$501.46$500.0022.9%6.6%15.9%14.0%23.8%4.8%0.1%71.5M-535.7M-11.4M0.527.3417,6569,163103,755127,292
2023-05-12$504.13$500.0022.4%6.4%15.4%12.3%23.0%4.8%0.2%171.3M-716.1M-11.4M0.576.9420,23911,617106,476130,142
2023-05-15$501.73$500.0023.1%6.6%15.5%14.6%23.4%5.0%-0.5%28.4M-452.3M-11.1M0.816.2713,21710,71299,890118,623
2023-05-16$497.45$500.0023.9%6.8%15.8%17.0%24.6%5.0%-0.8%2.8M-207.8M-11.1M0.985.1710,69110,521104,098123,141
2023-05-17$495.99$500.0022.8%6.5%15.9%13.7%21.1%4.8%-0.7%-21.2M-96.9M-10.9M0.727.0116,29811,748106,869127,493
2023-05-18$497.88$500.0021.9%6.3%14.8%10.7%22.3%4.7%-0.6%23.5M-275.6M-10.9M0.546.3221,38411,566109,937129,511
2023-05-19$497.28$500.0022.7%6.6%14.6%13.4%22.8%4.7%-0.8%-3.1M-242.2M-10.9M0.896.1113,74212,193113,053131,356
2023-05-22$492.01$500.0023.3%6.9%14.7%15.1%24.3%5.0%-0.6%-15.2M40.6M-10.7M0.824.9315,74812,90594,411108,102
2023-05-23$484.99$500.0023.7%7.1%14.7%16.5%24.9%5.0%-0.4%-47.2M383.9M-10.7M0.854.1316,33513,86999,383114,765
2023-05-24$483.69$500.0023.8%7.3%13.4%17.8%25.1%4.9%-0.3%-43.4M394.7M-10.9M1.114.3611,57112,874104,931119,434
2023-05-25$487.91$500.0025.4%7.9%12.6%25.3%29.3%3.8%-0.7%-15.9M49.9M-11.5M0.496.6172,60335,707106,168122,779
2023-05-26$507.49$497.5019.4%5.5%19.2%3.7%20.7%4.0%0.2%181.6M-1.63B-11.1M0.506.17110,52655,056139,209139,910
2023-05-30$507.94$500.0019.9%6.1%18.2%6.0%21.5%3.9%-0.2%85.1M-1.02B-11.2M0.433.4142,53118,090114,815119,198
2023-05-31$513.53$500.0019.9%6.0%18.5%7.6%21.6%3.6%-0.1%152.3M-1.48B-11.6M0.383.7735,61913,468125,289123,129