COST Options History — July 2008

In July 2008, COST traded between $60.35 and $74.66. ATM implied volatility averaged 31.1%, placing in the 44.5% IV rank vs the trailing year. The 30-day expected move averaged 8.9%. IV traded below realized volatility by 8.8% (HV 20d: 39.9%). Max pain ranged from $67.50 to $72.50. Net GEX was positive for 10 of 22 trading days. Term structure was in contango for 15 of 22 days. Put/call ratio averaged 1.49.

Notable Days

  • 2008-07-23: Highest Volume — 111,270 contracts
  • 2008-07-23: Largest IV spike — 21.5% change
  • 2008-07-28: Highest IV Rank — 59.8%
  • 2008-07-28: Largest Expected Move — 10.2%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$68.77$60.35$74.66$72.55$62.68
Max Pain$70.68$67.50$72.50$70.00$67.50
ATM IV31.1%27.9%35.4%28.3%29.6%
Expected Move8.9%8.0%10.2%8.1%8.5%
HV 20d39.9%27.5%58.9%32.8%57.2%
HV 60d30.9%25.3%40.2%25.5%40.2%
IV Rank44.5%30.6%59.8%41.0%36.4%
IV Percentile71.2%51.6%95.2%56.7%58.7%
Term Structure0.8%-2.4%3.0%0.7%-0.2%
VWIV31.4%28.1%34.2%30.0%28.3%
Skew 25d4.7%3.8%5.9%4.6%4.9%
Skew 10d9.8%7.3%17.2%9.2%8.4%
Call IV 25d29.1%26.2%33.0%26.4%26.8%
Put IV 25d33.8%29.9%38.9%31.0%31.6%
Bid-Ask Spread %11.326.7916.3012.479.04
Gamma HHI0.180.130.340.170.24
Net GEX507.5K-8.6M15.3M5.9M-6.0M
Net DEX-36.6M-423.5M378.7M-268.6M254.1M
Net VEX-2.5M-2.9M-2.2M-2.4M-2.8M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.490.543.511.460.55
Total Volume23,005.9093,631111,27021,5407,313
Total OI277,776.864174,189308,695265,436303,047

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2008-07-01$72.55$70.0028.3%8.1%32.8%41.0%30.0%4.6%0.7%5.9M-268.6M-2.4M1.4612.478,77012,770116,546148,890
2008-07-02$72.13$70.0028.4%8.1%32.7%41.3%29.7%4.7%1.2%5.0M-241.1M-2.5M2.359.553,3377,833118,502153,932
2008-07-03$72.23$70.0027.9%8.0%29.7%39.4%28.1%3.8%1.8%5.2M-239.5M-2.5M0.7411.192,0821,549118,505155,797
2008-07-07$72.87$70.0030.5%8.9%27.5%45.3%31.6%5.2%1.1%6.4M-280.6M-2.4M1.7112.686,26710,741118,706155,844
2008-07-08$74.66$72.5029.1%8.6%28.7%37.5%31.5%5.5%1.4%8.6M-380.8M-2.4M1.7613.325,2099,146121,918161,601
2008-07-09$72.15$72.5033.6%9.1%31.2%54.9%31.9%4.1%0.9%4.1M-228.0M-2.5M2.1515.192,6125,610122,845165,665
2008-07-10$70.86$72.5032.4%9.3%30.7%50.1%31.8%4.1%1.4%654.4K-125.1M-2.4M1.377.687,63710,459123,031166,707
2008-07-11$69.83$72.5033.5%9.6%31.0%54.3%34.2%4.1%0.6%-1.3M-60.2M-2.4M1.0912.297,5328,231125,850167,434
2008-07-14$69.57$72.5032.9%9.4%29.0%50.1%34.0%4.2%0.7%-1.8M-41.5M-2.3M3.5112.205,12217,963126,342168,861
2008-07-15$69.57$72.5032.0%9.2%29.0%46.1%31.6%4.3%1.3%-1.5M-34.8M-2.3M0.7016.309,4616,592128,892171,571
2008-07-16$72.58$72.5030.4%8.7%32.6%39.3%29.3%4.9%2.0%9.4M-285.3M-2.3M0.5411.909,7335,256130,126172,358
2008-07-17$74.13$72.5029.7%8.5%32.7%36.6%32.1%4.5%2.3%15.3M-423.5M-2.2M1.3314.188,78711,657130,624173,508
2008-07-18$72.23$72.5028.2%8.1%33.8%30.6%29.0%4.6%3.0%6.5M-250.3M-2.2M1.4715.597,08910,430131,271177,424
2008-07-21$69.66$72.5031.0%8.9%35.5%41.9%31.4%5.4%2.0%-1.2M-12.5M-2.2M3.106.7910,32532,00377,89496,295
2008-07-22$72.00$72.5028.3%8.1%37.3%30.9%28.8%4.6%2.2%-395.6K-50.0M-2.6M1.5112.028,00712,11684,256119,879
2008-07-23$63.43$72.5034.4%9.9%58.9%55.4%33.1%5.3%-2.4%-7.3M272.6M-2.3M1.208.6350,61760,65388,392126,012
2008-07-24$62.98$67.5034.6%9.9%57.9%56.4%34.0%4.4%-0.7%-8.6M299.7M-2.9M0.757.1319,34814,531113,223161,839
2008-07-25$61.76$67.5033.6%9.6%57.7%52.3%33.2%4.7%-0.5%-7.4M330.0M-2.9M0.576.889,9875,723125,394164,256
2008-07-28$60.35$67.5035.4%10.2%57.3%59.8%34.2%5.9%-0.7%-7.0M378.7M-2.8M0.8512.374,5903,904130,237166,570
2008-07-29$61.78$67.5030.5%8.7%58.3%39.8%31.3%4.5%-0.5%-7.6M346.1M-2.8M2.878.9712,49435,899131,523167,710
2008-07-30$63.00$67.5030.6%8.8%57.2%40.1%31.1%5.1%-0.9%-5.8M235.0M-2.9M1.2712.757,3809,365137,405164,409
2008-07-31$62.68$67.5029.6%8.5%57.2%36.4%28.3%4.9%-0.2%-6.0M254.1M-2.8M0.559.044,7312,582138,881164,166