CALX Options History — July 2011

In July 2011, CALX traded between $18.25 and $22.02. ATM implied volatility averaged 45.7%. The 30-day expected move averaged 13.6%. IV traded above realized volatility by 1.2% (HV 20d: 44.4%). Max pain ranged from $17.50 to $22.50. Net GEX was positive for 20 of 20 trading days. Term structure was in contango for 16 of 20 days. Put/call ratio averaged 2.69.

Notable Days

  • 2011-07-07: Highest Volume — 3,719 contracts
  • 2011-07-11: Largest IV spike — 31.3% change
  • 2011-07-18: Largest Expected Move — 15.4%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$20.69$18.25$22.02$21.46$18.34
Max Pain$20.38$17.50$22.50$20.00$17.50
ATM IV45.7%34.8%53.6%37.9%40.5%
Expected Move13.6%10.9%15.4%10.9%11.6%
HV 20d44.4%36.4%50.5%45.1%49.0%
HV 60d44.1%42.7%47.3%42.7%45.7%
Term Structure2.0%-1.7%8.2%8.2%7.2%
VWIV47.3%38.3%52.8%38.3%40.4%
Skew 25d6.2%1.2%11.2%4.3%1.2%
Skew 10d12.3%-2.4%26.1%4.4%5.0%
Call IV 25d45.5%38.0%51.3%38.0%38.6%
Put IV 25d51.7%39.8%57.3%42.4%39.8%
Bid-Ask Spread %56.8123.5284.9871.6928.93
Gamma HHI0.430.290.640.570.29
Net GEX157.0K67.2K306.3K208.3K165.6K
Net DEX-2.4M-5.7M1.8M-3.3M410.5K
Net VEX-38.7K-47.2K-31.7K-47.2K-32.9K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio2.690.0045.490.000.01
Total Volume977323,719321,422
Total OI12,908.659,84515,15614,52415,156

Daily Data (20 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2011-07-01$21.46$20.0037.9%10.9%45.1%0.0%38.3%4.3%8.2%208.3K-3.3M-47.2K0.0071.693207,8916,633
2011-07-05$21.57$22.5034.8%13.6%43.4%0.0%51.4%7.0%1.0%244.0K-3.7M-45.9K0.0073.266807,9006,633
2011-07-06$21.89$22.5039.8%13.3%43.2%0.0%49.6%7.7%2.1%253.3K-4.6M-46.3K0.1273.61416507,9216,633
2011-07-07$21.83$20.0039.8%13.9%43.0%0.0%48.4%7.6%1.3%254.2K-4.8M-46.4K45.4973.79803,6398,0066,619
2011-07-08$21.71$20.0037.6%13.3%42.0%0.0%0.0%8.0%3.4%306.3K-5.7M-37.1K0.0079.629407,9394,748
2011-07-11$20.80$20.0049.4%14.6%44.8%0.0%48.3%2.9%1.2%179.3K-3.6M-33.9K0.3877.3365257,8864,743
2011-07-12$20.57$20.0050.7%14.8%45.0%0.0%52.8%3.1%1.3%158.1K-3.2M-33.1K0.1075.015157,8764,732
2011-07-13$21.32$20.0049.3%13.7%45.9%0.0%48.3%4.5%2.2%243.8K-4.6M-34.0K1.2170.126748167,8504,735
2011-07-14$20.97$20.0053.5%15.3%46.3%0.0%52.6%8.8%-1.4%102.2K-3.3M-35.5K2.0975.337001,4648,1475,365
2011-07-15$20.98$20.0051.3%14.7%41.6%0.0%0.0%4.5%2.0%81.5K-2.8M-39.7K1.2176.43871058,3936,175
2011-07-18$20.75$20.0053.6%15.4%40.8%0.0%51.0%6.4%-0.5%67.2K-1.0M-38.4K0.1233.27461575,8444,001
2011-07-19$21.67$20.0048.8%14.0%42.7%0.0%46.7%8.9%0.6%90.7K-2.6M-40.4K0.6430.502141366,0833,976
2011-07-20$21.73$20.0051.3%14.7%36.4%0.0%52.6%8.7%-1.7%92.6K-2.8M-41.4K0.0731.09139106,1633,986
2011-07-21$22.02$20.0049.5%14.2%36.6%0.0%49.9%5.3%-1.4%100.1K-3.5M-41.8K0.1526.911,7502576,2443,987
2011-07-22$20.30$22.5045.6%13.1%47.2%0.0%41.7%7.0%1.0%131.6K-1.0M-38.8K0.2684.981,0332727,5984,157
2011-07-25$19.82$22.5045.9%13.2%47.8%0.0%46.1%7.4%1.9%130.4K-657.5K-38.4K0.0978.25501438,3574,336
2011-07-26$19.53$20.0040.5%11.6%47.2%0.0%40.4%3.3%5.4%110.8K7.3K-37.2K0.0228.292,581638,4624,376
2011-07-27$18.25$20.0047.7%13.7%50.4%0.0%46.3%6.6%2.9%117.7K1.3M-33.1K1.8024.263155689,8314,412
2011-07-28$18.28$20.0045.8%13.1%50.5%0.0%45.7%11.2%4.1%103.1K1.8M-31.7K0.0023.521,34709,7654,614
2011-07-29$18.34$17.5040.5%11.6%49.0%0.0%40.4%1.2%7.2%165.6K410.5K-32.9K0.0128.931,4031910,6484,508