SPY Options History — August 2015

In August 2015, SPY traded between $189.28 and $210.48. ATM implied volatility averaged 16.7%, placing in the 45.2% IV rank vs the trailing year. The 30-day expected move averaged 5.1%. IV traded above realized volatility by 2.8% (HV 20d: 13.9%). Max pain ranged from $205.00 to $210.00. Net GEX was positive for 0 of 21 trading days. Term structure was in contango for 9 of 21 days. Put/call ratio averaged 1.78.

Notable Days

  • 2015-08-21: Highest Volume — 9,673,206 contracts
  • 2015-08-24: Largest IV spike — 39.6% change
  • 2015-08-21: Highest IV Rank — 100.0%
  • 2015-08-24: Largest Expected Move — 9.6%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$204.43$189.28$210.48$209.70$198.03
Max Pain$208.43$205.00$210.00$210.00$205.00
ATM IV16.7%10.8%32.0%11.3%22.6%
Expected Move5.1%3.0%9.6%3.1%7.0%
HV 20d13.9%9.8%23.2%11.6%23.2%
HV 60d12.1%10.3%16.3%10.6%16.3%
IV Rank45.2%16.6%100.0%20.1%59.5%
IV Percentile65.6%18.3%100.0%26.6%98.4%
Term Structure-0.2%-2.1%1.9%0.1%0.1%
VWIV18.7%11.2%34.7%11.6%25.6%
Skew 25d6.9%4.3%14.6%4.4%10.4%
Skew 10d13.8%7.7%30.2%8.0%20.1%
Call IV 25d13.7%9.0%24.7%9.3%18.2%
Put IV 25d20.6%13.3%39.3%13.7%28.5%
Bid-Ask Spread %2.331.206.863.172.13
Gamma HHI0.040.030.070.040.04
Net GEX-5.53B-12.26B-2.34B-4.59B-4.05B
Net DEX48.96B6.78B133.11B19.06B60.80B
Net VEX-343.7M-412.3M-317.0M-317.8M-396.0M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.781.262.401.621.41
Total Volume3,548,495.9521,731,3819,673,2061,997,8632,521,597
Total OI20,231,596.8117,280,38923,454,09017,280,38921,136,576

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2015-08-03$209.70$210.0011.3%3.1%11.6%20.1%11.6%4.4%0.1%-4.59B19.06B-317.8M1.623.17N/AN/A763,2271,234,6365,778,95711,501,432
2015-08-04$209.15$210.0011.6%3.2%11.5%22.8%11.5%4.5%0.0%-5.18B22.64B-317.2M1.261.99N/AN/A766,219965,1626,087,54011,780,697
2015-08-05$210.05$210.0011.1%3.0%10.1%18.7%11.2%4.4%0.1%-3.58B13.94B-324.7M1.711.62N/AN/A758,8431,295,5316,278,93012,023,688
2015-08-06$208.65$210.0012.3%3.8%10.5%28.4%14.8%4.7%-0.1%-6.38B28.86B-337.8M1.921.41N/AN/A950,1741,823,8506,503,09412,312,257
2015-08-07$207.85$210.0012.3%3.8%9.8%27.9%14.5%4.6%-0.1%-9.09B36.57B-338.9M1.741.59N/AN/A1,156,8502,009,2086,771,12512,784,117
2015-08-10$210.41$209.0010.8%3.6%10.1%16.6%13.1%4.3%1.6%-2.49B8.38B-323.6M1.461.30N/AN/A934,3271,360,4636,401,31712,117,574
2015-08-11$208.66$210.0012.3%3.8%10.4%28.2%14.6%4.7%1.1%-5.81B28.47B-337.7M2.042.47N/AN/A942,6291,926,9176,613,51912,453,940
2015-08-12$208.79$209.0012.2%3.9%10.4%27.6%15.5%4.9%1.3%-5.12B24.81B-339.4M1.971.96N/AN/A1,386,0432,729,4126,856,86212,722,610
2015-08-13$208.74$209.0012.3%3.8%9.9%28.1%14.3%4.7%1.1%-4.97B22.53B-337.3M1.631.39N/AN/A828,4241,346,1987,117,24913,176,542
2015-08-14$209.34$209.0011.8%3.8%10.0%24.6%14.7%4.5%1.9%-3.40B15.84B-334.5M1.861.41N/AN/A828,2901,542,1347,276,40313,418,070
2015-08-17$210.48$209.0012.2%3.6%10.2%27.6%14.4%5.1%-0.6%-2.34B6.78B-317.0M2.401.21N/AN/A798,1131,914,3956,874,45312,942,763
2015-08-18$209.99$209.0012.7%3.7%10.1%31.0%14.0%5.4%-0.4%-4.65B15.18B-325.5M1.851.20N/AN/A666,6821,235,0327,138,34613,769,238
2015-08-19$208.40$210.0014.1%4.1%10.4%42.5%14.9%5.4%-0.8%-10.44B34.68B-319.5M1.666.86N/AN/A1,432,3072,373,8907,253,48414,047,154
2015-08-20$204.20$210.0017.5%5.1%12.5%68.7%17.7%6.6%-1.0%-12.26B79.91B-340.3M1.811.45N/AN/A1,885,9453,419,1967,544,04014,422,453
2015-08-21$197.92$209.0022.9%6.7%16.2%100.0%24.2%10.2%-1.7%-8.54B133.11B-336.0M2.232.84N/AN/A2,995,0406,678,1668,037,66614,953,338
2015-08-24$191.45$208.0032.0%9.6%19.5%100.0%34.7%14.6%-2.1%-5.16B119.10B-345.9M2.253.09N/AN/A1,878,7134,231,3396,252,64812,772,328
2015-08-25$189.28$206.0029.1%8.8%18.6%87.5%30.1%12.3%-1.3%-4.98B122.07B-338.5M1.662.58N/AN/A1,545,4792,570,7977,030,38713,236,853
2015-08-26$194.23$205.0025.2%7.7%21.2%70.6%29.9%10.7%-1.0%-5.23B99.66B-375.8M1.683.16N/AN/A1,637,9312,744,0427,582,93513,955,353
2015-08-27$198.67$205.0022.5%7.0%23.2%59.2%25.1%9.3%-1.1%-4.08B68.63B-401.5M1.513.12N/AN/A2,020,3173,041,4528,060,92214,422,583
2015-08-28$199.03$205.0022.4%7.0%23.2%59.0%25.8%9.7%-0.7%-3.78B67.10B-412.3M1.782.94N/AN/A1,215,0832,164,3628,424,93115,029,159
2015-08-31$198.03$205.0022.6%7.0%23.2%59.5%25.6%10.4%0.1%-4.05B60.80B-396.0M1.412.13N/AN/A1,046,9481,474,6497,665,38313,471,193