SPX Options History — October 2007

In October 2007, SPX traded between $1500.72 and $1566.27. ATM implied volatility averaged 16.4%, placing in the 51.6% IV rank vs the trailing year. The 30-day expected move averaged 4.8%. IV traded above realized volatility by 3.3% (HV 20d: 13.1%). Max pain ranged from $1500.00 to $1540.00. Net GEX was positive for 12 of 23 trading days. Term structure was in contango for 22 of 23 days. Put/call ratio averaged 2.10.

Notable Days

  • 2007-10-17: Highest Volume — 1,094,861 contracts
  • 2007-10-11: Largest IV spike — 31.0% change
  • 2007-10-30: Highest IV Rank — 81.5%
  • 2007-10-19: Largest Expected Move — 5.9%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$1540.13$1500.72$1566.27$1545.93$1548.27
Max Pain$1524.13$1500.00$1540.00$1500.00$1530.00
ATM IV16.4%12.2%22.8%14.6%16.3%
Expected Move4.8%4.1%5.9%4.3%4.5%
HV 20d13.1%9.8%14.7%14.7%14.1%
HV 60d18.2%16.6%19.0%19.0%16.7%
IV Rank51.6%31.7%81.5%42.9%50.9%
IV Percentile73.3%49.7%93.3%68.4%72.7%
Term Structure1.0%-0.2%1.9%1.2%0.6%
VWIV18.3%16.1%21.3%16.1%17.0%
Skew 25d5.7%4.7%6.5%4.7%5.4%
Skew 10d10.9%9.2%12.5%10.0%9.2%
Call IV 25d13.9%11.6%17.5%12.4%13.0%
Put IV 25d19.6%16.8%24.0%17.1%18.5%
Bid-Ask Spread %30.6522.2540.6634.3940.66
Gamma HHI0.050.040.060.050.04
Net GEX1.07B-6.55B9.51B3.99B-1.01B
Net DEX-105.74B-211.44B35.50B-144.48B-100.37B
Net VEX-2.03B-2.18B-1.86B-1.91B-2.11B
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio2.101.293.961.611.85
Total Volume563,270.217287,3711,094,861580,832478,498
Total OI10,165,917.7398,786,68911,605,1079,501,61410,472,612

Daily Data (23 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2007-10-01$1545.93$1500.0014.6%4.3%14.7%42.9%16.1%4.7%1.2%3.99B-144.48B-1.91B1.6134.39222,376358,4563,299,0826,202,532
2007-10-02$1543.83$1500.0014.2%4.2%14.5%41.1%19.0%5.1%1.5%3.44B-138.33B-1.97B3.9429.61120,855475,7713,377,2346,307,372
2007-10-03$1539.59$1500.0013.2%4.3%14.0%36.6%17.4%4.9%1.7%2.30B-126.30B-2.00B2.1830.1896,772211,0103,438,1626,442,703
2007-10-04$1541.73$1500.0012.2%4.2%14.0%31.7%16.1%4.7%1.9%2.78B-131.35B-2.00B1.4332.83185,910265,5833,471,5906,521,913
2007-10-05$1560.31$1525.0012.7%4.4%13.0%34.4%16.8%5.9%0.8%7.07B-185.89B-1.94B1.2922.25179,214230,8573,515,0306,609,012
2007-10-08$1552.58$1525.0014.1%4.4%13.1%40.5%17.1%5.7%1.1%6.13B-168.51B-1.93B2.5322.6781,490205,8813,570,4516,659,578
2007-10-09$1566.27$1525.0012.2%4.1%12.9%31.7%16.7%5.3%1.3%9.51B-211.44B-1.86B1.5622.42198,689310,4783,584,7996,710,566
2007-10-10$1563.59$1525.0012.9%4.2%13.0%35.0%16.1%5.5%1.4%9.03B-201.25B-1.91B2.1523.74174,658376,0193,663,8996,808,041
2007-10-11$1554.41$1525.0016.9%4.8%13.3%53.6%17.8%5.8%0.7%5.45B-173.36B-1.99B1.6829.13228,653384,3523,702,9366,915,221
2007-10-12$1564.86$1525.0015.6%4.5%13.4%47.8%17.2%5.5%1.3%7.97B-200.87B-1.98B1.5526.06167,855260,7323,765,1797,063,937
2007-10-15$1550.95$1525.0017.2%4.9%13.7%55.3%18.1%6.1%0.8%4.58B-157.76B-2.00B1.9633.16176,390345,5493,805,1367,100,391
2007-10-16$1538.80$1525.0017.8%5.1%10.2%58.1%19.9%5.9%0.9%-453.3M-110.17B-2.04B1.6330.69265,842433,1193,818,1727,190,244
2007-10-17$1543.80$1535.0016.3%4.7%10.0%51.2%17.6%5.4%1.5%1.57B-129.70B-2.01B1.9136.39376,068718,7933,835,9667,296,297
2007-10-18$1538.65$1535.0016.2%4.7%9.8%50.7%16.7%5.5%1.4%-1.94B-103.04B-2.05B1.3434.37398,563533,2183,961,4627,643,645
2007-10-19$1500.72$1540.0020.5%5.9%13.3%70.6%21.2%6.5%0.3%-5.93B35.50B-2.12B2.6930.50233,967629,8303,166,5165,620,173
2007-10-22$1506.57$1535.0019.3%5.5%13.4%65.1%21.3%6.3%0.6%-6.55B22.87B-2.11B2.9833.14155,284461,9813,256,2895,924,079
2007-10-23$1517.72$1535.0017.8%5.1%13.6%57.9%19.7%6.2%1.0%-5.52B-6.82B-2.11B2.0530.64168,149345,0393,300,9796,089,170
2007-10-24$1515.88$1535.0018.3%5.3%13.5%60.5%18.9%6.2%0.7%-5.78B45.5M-2.15B1.2934.64223,374287,8723,388,7396,199,844
2007-10-25$1519.82$1530.0018.8%5.4%13.5%62.8%20.9%6.5%0.5%-4.68B-10.37B-2.18B2.3731.17129,816308,0193,502,8006,298,357
2007-10-26$1536.44$1525.0018.9%4.9%14.0%62.9%18.5%5.7%0.8%-2.22B-64.61B-2.14B1.9035.53170,556324,8613,540,8116,402,289
2007-10-29$1541.16$1525.0019.0%5.1%13.3%63.7%19.7%5.6%0.5%-1.38B-81.80B-2.12B3.9630.82103,696410,4423,608,8106,511,908
2007-10-30$1531.02$1530.0022.8%5.5%13.5%81.5%21.1%6.2%-0.2%-3.71B-44.07B-2.15B2.5529.98152,113388,5653,622,6196,629,563
2007-10-31$1548.27$1530.0016.3%4.5%14.1%50.9%17.0%5.4%0.6%-1.01B-100.37B-2.11B1.8540.66167,625310,8733,666,6386,805,974