OPEN Options History — May 2010

In May 2010, OPEN traded between $37.47 and $43.38. ATM implied volatility averaged 60.7%. The 30-day expected move averaged 17.5%. IV traded above realized volatility by 21.8% (HV 20d: 38.9%). Max pain ranged from $40.00 to $45.00. Net GEX was positive for 5 of 20 trading days. Term structure was in contango for 2 of 20 days. Put/call ratio averaged 19.43.

Notable Days

  • 2010-05-11: Highest Volume — 3,634 contracts
  • 2010-05-07: Largest IV spike — 48.9% change
  • 2010-05-21: Largest Expected Move — 21.5%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$40.46$37.47$43.38$38.45$41.33
Max Pain$40.75$40.00$45.00$40.00$40.00
ATM IV60.7%39.4%74.9%51.8%59.4%
Expected Move17.5%11.3%21.5%14.9%17.0%
HV 20d38.9%27.6%47.0%27.6%47.0%
HV 60d37.2%32.2%52.6%51.5%35.1%
Term Structure-4.1%-10.5%10.0%-8.6%-6.1%
VWIV64.7%52.1%80.4%52.1%59.1%
Skew 25d13.2%4.2%27.6%5.4%12.4%
Skew 10d23.8%4.3%43.4%11.6%43.4%
Call IV 25d54.6%36.3%67.6%52.1%54.5%
Put IV 25d67.8%56.2%82.1%57.4%66.8%
Bid-Ask Spread %44.9025.27103.2052.5170.36
Gamma HHI0.360.260.520.300.49
Net GEX-62.6K-291.8K169.9K-43.2K-246.3K
Net DEX596.9K-2.4M6.2M-180.6K1.8M
Net VEX-49.9K-66.1K-27.7K-27.7K-66.1K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio19.430.03302.000.03302.00
Total Volume1,010.851843,634184303
Total OI9,764.94,86813,3444,86813,344

Daily Data (20 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2010-05-03$38.45$40.0051.8%14.9%27.6%0.0%52.1%5.4%-8.6%-43.2K-180.6K-27.7K0.0352.5117861,7173,151
2010-05-04$37.50$40.0064.3%18.4%27.8%0.0%61.1%4.2%-10.5%-34.1K256.8K-29.5K0.4746.857523551,8523,151
2010-05-05$39.22$40.0052.8%15.1%31.7%0.0%54.3%8.8%-2.6%54.3K-1.8M-30.9K1.9636.865331,0442,4353,318
2010-05-06$37.81$40.0039.4%11.3%34.6%0.0%58.0%20.0%10.0%4.7K79.0K-33.0K3.80103.20813082,5053,868
2010-05-07$37.47$45.0058.7%17.7%32.1%0.0%56.6%5.4%-8.2%-12.1K464.2K-33.1K2.3727.86932202,5663,792
2010-05-10$38.81$45.0052.8%16.5%34.6%0.0%65.0%18.8%-2.2%14.5K-484.4K-33.1K5.5338.241578682,5663,792
2010-05-11$40.11$45.0058.5%17.4%36.5%0.0%58.7%27.6%-2.9%-41-570.0K-37.8K4.0625.277182,9162,5134,586
2010-05-12$41.99$40.0068.2%18.2%39.6%0.0%63.9%14.4%-5.2%-18.5K-733.9K-52.4K5.7930.962291,3253,0287,029
2010-05-13$42.88$40.0057.6%16.5%40.1%0.0%68.3%8.5%-2.8%-45.8K-814.0K-54.1K9.8726.14383752,9647,924
2010-05-14$43.00$40.0060.8%17.4%40.0%0.0%67.1%12.2%-5.0%-46.8K-746.6K-55.3K1.8126.062554622,9788,204
2010-05-17$43.20$40.0063.2%18.1%39.0%0.0%73.4%17.3%-9.3%-28.4K-952.6K-54.8K3.1547.371976213,0948,423
2010-05-18$43.31$40.0061.5%17.6%38.6%0.0%67.0%15.2%-6.4%-4.3K-1.7M-54.9K0.7040.745994173,2148,383
2010-05-19$43.38$40.0060.9%17.5%38.6%0.0%68.6%13.3%-2.9%48.3K-2.4M-58.7K10.9139.45434693,6948,639
2010-05-20$41.06$40.0070.7%20.3%43.8%0.0%70.4%15.1%-7.1%-33.0K539.0K-60.6K10.3143.09646603,7208,701
2010-05-21$40.46$40.0074.9%21.5%44.1%0.0%80.4%13.9%-7.5%169.9K1.6M-60.4K13.9535.781421,9813,7628,452
2010-05-24$38.97$40.0066.2%19.0%46.0%0.0%71.7%15.1%-2.0%-259.3K5.5M-63.6K2.3742.431824322,6158,904
2010-05-25$39.00$40.0068.6%19.7%46.0%0.0%71.4%16.1%-3.9%-291.8K6.2M-62.9K3.3640.591876282,7609,019
2010-05-26$39.55$40.0063.7%18.3%43.7%0.0%66.7%7.9%-2.8%-264.3K4.5M-62.9K1.8156.825449822,9018,890
2010-05-27$41.71$40.0059.3%17.0%46.8%0.0%59.3%12.5%4.2%-216.5K1.3M-65.2K4.2767.481626913,2409,604
2010-05-28$41.33$40.0059.4%17.0%47.0%0.0%59.1%12.4%-6.1%-246.3K1.8M-66.1K302.0070.3613023,33310,011