PFE Options History — May 2008

In May 2008, PFE traded between $18.31 and $19.55. ATM implied volatility averaged 18.0%, placing in the 28.9% IV rank vs the trailing year. The 30-day expected move averaged 5.3%. IV traded below realized volatility by 1.1% (HV 20d: 19.1%). Max pain ranged from $18.98 to $21.35. Net GEX was positive for 0 of 21 trading days. Term structure was in contango for 19 of 21 days. Put/call ratio averaged 0.86.

Notable Days

  • 2008-05-06: Highest Volume — 226,743 contracts
  • 2008-05-15: Largest IV spike — 31.3% change
  • 2008-05-05: Highest IV Rank — 44.6%
  • 2008-05-02: Largest Expected Move — 5.8%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$18.92$18.31$19.55$19.39$18.37
Max Pain$21.12$18.98$21.35$18.98$21.35
ATM IV18.0%13.4%21.5%20.1%18.1%
Expected Move5.3%4.8%5.8%5.8%5.2%
HV 20d19.1%13.4%23.5%23.1%13.4%
HV 60d20.5%20.3%21.0%20.8%20.5%
IV Rank28.9%8.9%44.6%38.4%29.5%
IV Percentile19.4%1.2%50.8%39.3%16.3%
Term Structure2.4%-1.2%4.2%-0.9%2.3%
VWIV19.1%16.6%30.9%20.3%18.2%
Skew 25d0.5%-7.4%6.2%-7.4%6.2%
Skew 10d-0.9%-10.8%2.3%-10.8%0.6%
Call IV 25d21.4%17.6%26.1%26.1%18.2%
Put IV 25d21.9%15.4%24.4%18.7%24.4%
Bid-Ask Spread %2.561.934.722.593.41
Gamma HHI0.620.500.830.630.50
Net GEX-22.2M-56.7M-14.6M-18.3M-14.6M
Net DEX1.15B1.05B1.30B1.09B1.24B
Net VEX-9.1M-9.4M-8.5M-9.3M-9.0M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.860.201.490.890.47
Total Volume40,881.90515,160226,74333,34720,866
Total OI2,531,991.1432,477,4842,578,4862,483,6922,578,486

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2008-05-01$19.39$18.9820.1%5.8%23.1%38.4%20.3%-7.4%-0.9%-18.3M1.09B-9.3M0.892.5917,61315,7341,219,9471,263,745
2008-05-02$19.55$18.9820.3%5.8%23.4%39.0%20.5%-6.2%-1.2%-18.1M1.05B-9.3M0.434.7214,9136,4731,223,6191,271,749
2008-05-05$19.47$21.3521.5%5.8%23.3%44.6%20.5%-0.2%1.0%-18.6M1.09B-9.1M0.832.5610,4158,6601,228,3411,269,124
2008-05-06$19.37$21.3521.3%5.7%22.0%43.6%30.9%0.3%1.3%-19.5M1.10B-9.2M0.202.31188,86137,8821,233,6131,271,724
2008-05-07$18.90$21.3518.6%5.6%23.5%31.5%19.7%-0.6%2.1%-24.2M1.17B-9.2M1.462.1626,13538,0941,226,3841,286,228
2008-05-08$18.95$21.3516.5%5.5%23.5%22.3%19.4%1.2%2.3%-25.2M1.13B-9.4M0.632.0616,51110,4221,245,4541,298,678
2008-05-09$18.78$21.3517.4%5.5%22.4%26.6%20.0%1.3%2.5%-21.8M1.17B-9.2M0.772.0012,3499,4921,257,4841,287,411
2008-05-12$18.89$21.3518.7%5.4%22.5%32.1%19.1%1.2%2.6%-23.8M1.14B-9.1M1.002.187,5697,5911,254,9311,286,189
2008-05-13$18.95$21.3517.0%5.2%22.3%24.4%18.2%0.3%3.2%-26.3M1.14B-8.9M0.942.2028,74027,1391,254,4301,285,151
2008-05-14$19.03$21.3513.4%5.1%21.1%8.9%18.2%0.4%3.1%-32.7M1.09B-9.4M0.881.9517,98315,8481,254,9301,304,880
2008-05-15$19.05$21.3517.6%5.1%17.6%27.4%18.0%-0.2%3.7%-44.2M1.09B-9.4M0.732.2914,17810,3971,259,3001,312,267
2008-05-16$19.00$21.3516.9%4.9%17.5%24.3%17.0%-0.8%4.2%-56.7M1.16B-8.8M1.492.3217,75726,5221,265,6981,311,107
2008-05-19$19.19$21.3517.7%5.1%17.3%27.7%17.7%-0.6%2.5%-14.6M1.05B-9.4M1.161.9324,36628,2161,207,3731,270,111
2008-05-20$19.02$21.3517.3%5.0%15.9%26.2%17.3%-6.3%3.1%-15.4M1.09B-9.4M1.122.4210,13511,3921,216,0551,285,202
2008-05-21$18.98$21.3516.9%4.8%15.9%24.2%16.9%0.4%3.7%-15.7M1.12B-9.1M0.762.6315,61311,9321,219,5181,285,396
2008-05-22$18.77$21.3516.6%4.8%16.2%22.9%16.6%2.3%3.8%-15.6M1.16B-9.2M0.902.3120,08618,0831,231,2581,293,309
2008-05-23$18.53$21.3517.2%4.9%14.9%25.5%17.3%2.7%3.5%-15.2M1.20B-9.2M1.442.6612,27317,7161,236,3441,300,100
2008-05-27$18.34$21.3518.4%5.3%14.9%30.5%18.3%5.4%2.8%-15.2M1.25B-8.7M0.512.5317,4888,9651,242,5471,312,360
2008-05-28$18.31$21.3518.5%5.3%14.9%31.0%18.4%5.1%2.5%-15.0M1.26B-8.5M0.522.6115,0797,8061,248,1251,308,352
2008-05-29$18.41$21.3517.5%5.0%15.0%27.0%17.5%5.7%2.7%-15.7M1.30B-8.6M0.873.8616,66214,5641,253,2091,311,685
2008-05-30$18.37$21.3518.1%5.2%13.4%29.5%18.2%6.2%2.3%-14.6M1.24B-9.0M0.473.4114,2066,6601,260,7491,317,737