SPY Options History — October 2012

In October 2012, SPY traded between $141.21 and $146.41. ATM implied volatility averaged 13.9%, placing in the 12.9% IV rank vs the trailing year. The 30-day expected move averaged 4.0%. IV traded above realized volatility by 2.9% (HV 20d: 11.0%). Max pain ranged from $144.00 to $145.00. Net GEX was positive for 3 of 21 trading days. Term structure was in contango for 20 of 21 days. Put/call ratio averaged 1.77.

Notable Days

  • 2012-10-19: Highest Volume — 4,099,729 contracts
  • 2012-10-08: Largest IV spike — 26.5% change
  • 2012-10-23: Highest IV Rank — 23.0%
  • 2012-10-31: Largest Expected Move — 4.8%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$143.85$141.21$146.41$144.29$141.35
Max Pain$144.43$144.00$145.00$145.00$144.00
ATM IV13.9%10.0%16.6%14.2%16.0%
Expected Move4.0%3.4%4.8%3.8%4.8%
HV 20d11.0%8.4%13.8%11.5%13.0%
HV 60d11.3%10.6%11.7%11.7%10.6%
IV Rank12.9%0.0%23.0%9.6%20.8%
IV Percentile26.6%0.0%59.1%25.0%50.8%
Term Structure1.0%-0.2%1.7%0.8%-0.2%
VWIV14.5%12.1%17.0%13.4%16.9%
Skew 25d3.8%2.3%4.9%3.3%3.4%
Skew 10d7.5%4.4%10.2%6.5%5.4%
Call IV 25d12.4%10.7%15.5%11.9%15.5%
Put IV 25d16.2%13.0%19.2%15.2%18.8%
Bid-Ask Spread %2.561.925.832.422.09
Gamma HHI0.060.040.300.050.06
Net GEX-2.35B-6.34B274.6M-1.59B-3.21B
Net DEX6.89B-12.74B21.30B3.62B19.87B
Net VEX-259.0M-271.5M-235.8M-271.5M-252.4M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.771.412.201.681.51
Total Volume2,022,610.81973,2054,099,7291,720,1501,660,199
Total OI18,886,025.14316,575,47021,199,94017,559,92418,577,097

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2012-10-01$144.29$145.0014.2%3.8%11.5%9.6%13.4%3.3%0.8%-1.59B3.62B-271.5M1.682.42N/AN/A641,4141,078,7365,679,51511,880,409
2012-10-02$144.61$145.0013.8%3.5%11.5%8.7%13.2%3.0%1.3%-1.42B1.47B-267.9M2.192.13N/AN/A414,208907,8855,827,61912,107,206
2012-10-03$145.03$145.0014.7%3.6%11.5%13.3%12.6%2.8%1.2%-1.11B-1.32B-266.1M1.432.10N/AN/A595,158852,9225,886,73312,305,844
2012-10-04$146.15$145.0011.8%3.4%9.7%5.2%12.1%2.3%1.3%123.5M-10.71B-258.4M1.521.93N/AN/A750,5671,140,6185,988,92812,462,546
2012-10-05$146.06$144.0010.0%3.7%9.6%0.0%13.6%3.5%1.5%274.6M-10.44B-257.8M1.742.86N/AN/A896,1791,561,5076,167,73012,756,436
2012-10-08$145.55$144.0012.7%3.8%9.2%9.2%13.8%3.8%1.4%-1.20B-3.68B-258.6M2.012.29N/AN/A323,691649,5146,012,65712,606,215
2012-10-09$144.22$145.0014.4%4.1%9.8%15.2%14.8%4.1%1.1%-2.96B8.43B-266.7M2.191.92N/AN/A561,4791,231,2056,073,23612,727,414
2012-10-10$143.20$145.0013.6%4.1%9.9%12.4%15.1%4.0%1.2%-3.83B16.32B-263.0M1.992.48N/AN/A660,5561,311,9326,163,82312,978,232
2012-10-11$143.41$144.0014.0%4.0%8.6%13.7%13.9%3.9%1.4%-3.80B13.92B-259.1M1.502.03N/AN/A682,6421,021,7776,296,27313,202,277
2012-10-12$142.73$144.0014.1%4.0%8.4%14.2%15.0%4.2%1.2%-4.65B21.02B-261.3M1.822.22N/AN/A801,7741,458,6106,458,77913,517,911
2012-10-15$144.15$144.0013.5%3.9%9.3%12.1%14.0%3.9%1.3%-2.55B6.44B-252.8M1.792.97N/AN/A550,359985,5776,426,14113,387,199
2012-10-16$145.52$144.0012.9%3.7%10.0%10.0%13.9%3.8%1.4%-661.6M-6.16B-247.7M1.655.83N/AN/A747,1641,235,7096,483,76813,508,832
2012-10-17$146.26$144.0013.0%3.7%10.1%10.3%13.5%3.7%1.4%205.8M-12.74B-244.7M1.602.06N/AN/A666,2381,063,9356,600,33413,748,235
2012-10-18$146.41$145.0012.3%3.5%10.1%7.9%12.7%3.1%1.7%-1.22B-11.03B-235.8M1.412.50N/AN/A960,1811,352,3516,623,45013,894,720
2012-10-19$143.07$145.0014.3%4.1%12.9%14.8%14.5%4.8%1.1%-6.34B20.70B-252.9M1.704.67N/AN/A1,516,7862,582,9436,899,45314,300,487
2012-10-22$143.64$145.0013.8%3.9%13.0%13.0%15.0%4.2%1.1%-2.14B6.23B-255.2M1.972.02N/AN/A680,9911,340,1045,534,82711,040,643
2012-10-23$141.25$144.0016.6%4.8%13.8%23.0%17.0%4.9%0.3%-3.22B21.30B-265.7M1.862.24N/AN/A1,023,5311,903,4655,779,83511,533,857
2012-10-24$141.21$144.0016.1%4.6%13.6%21.0%16.6%4.5%0.5%-3.17B21.12B-267.2M2.202.04N/AN/A658,8881,452,2756,038,76711,822,705
2012-10-25$141.49$144.0016.1%4.6%13.1%21.1%16.5%4.3%0.3%-3.18B19.11B-266.5M1.912.52N/AN/A739,6981,411,5726,180,85512,120,608
2012-10-26$141.34$144.0014.5%4.5%13.0%15.5%15.9%4.3%0.3%-3.70B21.16B-266.9M1.542.50N/AN/A944,5591,455,9286,329,47512,675,457
2012-10-31$141.35$144.0016.0%4.8%13.0%20.8%16.9%3.4%-0.2%-3.21B19.87B-252.4M1.512.09N/AN/A662,369997,8306,242,89412,334,203