COST Options History — April 2008

In April 2008, COST traded between $65.32 and $71.54. ATM implied volatility averaged 26.6%, placing in the 38.0% IV rank vs the trailing year. The 30-day expected move averaged 7.6%. IV traded above realized volatility by 1.4% (HV 20d: 25.2%). Max pain ranged from $65.00 to $67.50. Net GEX was positive for 22 of 22 trading days. Term structure was in contango for 22 of 22 days. Put/call ratio averaged 1.45.

Notable Days

  • 2008-04-18: Highest Volume — 21,548 contracts
  • 2008-04-09: Largest IV spike — 10.6% change
  • 2008-04-09: Highest IV Rank — 49.6%
  • 2008-04-09: Largest Expected Move — 8.5%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$67.97$65.32$71.54$66.49$71.25
Max Pain$65.68$65.00$67.50$65.00$67.50
ATM IV26.6%23.4%30.1%27.6%25.6%
Expected Move7.6%6.7%8.5%7.9%7.3%
HV 20d25.2%19.1%31.7%31.6%19.1%
HV 60d29.3%27.3%32.9%32.9%27.3%
IV Rank38.0%27.3%49.6%41.3%34.6%
IV Percentile45.4%25.0%67.1%56.0%36.1%
Term Structure1.4%0.3%2.9%1.2%1.9%
VWIV27.3%24.5%30.2%28.7%25.5%
Skew 25d3.7%-10.1%5.4%4.6%3.7%
Skew 10d8.8%6.0%15.3%9.8%6.4%
Call IV 25d25.4%22.4%36.7%27.1%23.1%
Put IV 25d29.1%26.2%31.7%31.7%26.8%
Bid-Ask Spread %12.566.9626.0812.589.66
Gamma HHI0.160.110.360.120.12
Net GEX4.4M1.1M12.6M3.6M3.4M
Net DEX-145.3M-292.5M-25.5M-106.3M-229.2M
Net VEX-2.3M-2.4M-2.2M-2.4M-2.4M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.450.273.071.141.55
Total Volume8,799.1823,28021,54810,8809,008
Total OI243,137185,972291,172257,587212,729

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2008-04-01$66.49$65.0027.6%7.9%31.6%41.3%28.7%4.6%1.2%3.6M-106.3M-2.4M1.1412.585,0785,802122,862134,725
2008-04-02$66.25$65.0029.3%8.4%31.7%47.0%29.7%4.7%0.4%2.5M-86.8M-2.4M2.2317.121,4093,142122,738137,824
2008-04-03$66.87$65.0027.5%7.9%29.9%40.9%29.2%4.8%0.5%4.1M-129.1M-2.4M1.1515.471,5341,769123,005138,230
2008-04-04$66.45$65.0027.5%8.1%29.5%40.9%29.2%5.2%0.9%3.6M-99.1M-2.4M2.2313.751,0152,265123,220137,916
2008-04-07$66.30$65.0027.8%8.0%29.6%41.8%28.4%4.9%1.3%3.1M-89.3M-2.3M0.8013.403,3242,661123,125138,917
2008-04-08$66.93$65.0027.3%8.0%29.6%40.1%29.3%5.4%0.9%4.3M-127.1M-2.3M1.1015.432,8723,147123,873139,649
2008-04-09$66.03$65.0030.1%8.5%27.5%49.6%29.9%4.7%0.7%2.2M-69.7M-2.3M1.8513.843,2806,068124,914141,339
2008-04-10$66.52$65.0027.2%7.8%27.5%39.9%28.1%4.4%1.3%4.3M-108.9M-2.3M3.0711.533,41410,473126,355142,403
2008-04-11$65.70$65.0029.1%8.3%27.8%46.1%29.1%4.5%0.6%3.0M-60.1M-2.2M1.4513.344,0895,934126,980141,060
2008-04-14$65.32$65.0029.4%8.4%26.6%47.0%30.2%4.8%0.3%1.1M-25.5M-2.2M0.639.343,1041,960129,326144,137
2008-04-15$65.72$65.0028.2%8.1%26.2%43.3%28.7%4.2%1.3%2.7M-55.7M-2.2M1.1511.553,2013,693130,430144,414
2008-04-16$67.24$65.0025.5%7.3%26.3%34.2%26.1%3.8%2.3%10.7M-160.5M-2.2M0.7311.638,4436,162131,197145,014
2008-04-17$68.49$65.0025.6%7.3%26.0%34.5%26.0%4.0%2.0%12.0M-252.1M-2.2M2.389.266,35115,114131,979146,456
2008-04-18$69.43$65.0023.8%6.8%22.7%28.8%24.5%3.9%1.9%12.6M-292.5M-2.2M0.2710.4917,0074,541134,521156,651
2008-04-21$69.11$65.0023.8%6.8%20.4%28.6%24.5%3.9%2.9%2.8M-145.0M-2.3M1.1410.972,4362,78783,723102,249
2008-04-22$68.08$65.0026.1%7.5%20.6%36.4%25.8%4.1%1.6%2.0M-105.8M-2.3M1.578.203,9246,15684,020102,249
2008-04-23$69.60$67.5024.7%7.1%21.9%31.7%25.2%3.6%2.3%3.0M-167.1M-2.4M0.539.684,6542,44888,463108,620
2008-04-24$70.22$67.5024.9%7.1%20.3%32.4%25.4%-10.1%1.8%4.2M-195.6M-2.4M1.0926.081,7561,91490,579108,721
2008-04-25$71.54$67.5023.4%6.7%19.8%27.3%24.5%3.8%2.6%4.5M-246.7M-2.3M1.076.962,5192,69789,803109,804
2008-04-28$70.83$67.5025.5%7.3%20.5%34.4%26.7%4.1%1.7%4.0M-217.6M-2.3M1.7412.351,3622,36590,534111,106
2008-04-29$71.00$67.5025.5%7.3%19.3%34.2%26.9%4.1%1.6%4.2M-226.7M-2.3M2.9613.643,2049,50091,347111,807
2008-04-30$71.25$67.5025.6%7.3%19.1%34.6%25.5%3.7%1.9%3.4M-229.2M-2.4M1.559.663,5305,47893,098119,631