SPY Options History — August 2019

In August 2019, SPY traded between $284.49 and $295.62. ATM implied volatility averaged 17.1%, placing in the 40.4% IV rank vs the trailing year. The 30-day expected move averaged 5.1%. IV traded below realized volatility by 0.6% (HV 20d: 17.7%). Max pain ranged from $291.00 to $295.00. Net GEX was positive for 3 of 22 trading days. Term structure was in contango for 10 of 22 days. Put/call ratio averaged 1.67.

Notable Days

  • 2019-08-05: Highest Volume — 5,862,587 contracts
  • 2019-08-05: Largest IV spike — 31.5% change
  • 2019-08-14: Highest IV Rank — 57.4%
  • 2019-08-14: Largest Expected Move — 6.1%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$289.77$284.49$295.62$295.62$292.35
Max Pain$292.14$291.00$295.00$295.00$292.00
ATM IV17.1%14.6%20.9%15.1%16.1%
Expected Move5.1%4.3%6.1%4.6%4.9%
HV 20d17.7%7.5%22.6%7.5%22.3%
HV 60d13.7%11.6%15.2%11.6%14.4%
IV Rank40.4%29.2%57.4%31.9%36.2%
IV Percentile76.4%60.7%94.4%68.3%67.5%
Term Structure-0.1%-0.9%1.0%-0.6%0.1%
VWIV19.0%16.4%21.9%17.1%19.8%
Skew 25d7.5%6.4%8.6%6.9%8.1%
Skew 10d12.9%10.9%15.4%13.6%13.6%
Call IV 25d13.4%11.6%16.6%12.1%12.5%
Put IV 25d20.9%18.1%25.2%19.0%20.6%
Bid-Ask Spread %1.170.981.411.411.15
Gamma HHI0.030.020.040.030.02
Net GEX-3.70B-9.01B1.17B-5.45B582.3M
Net DEX28.39B-956.8M76.29B14.93B3.28B
Net VEX-559.2M-575.4M-543.5M-557.1M-575.4M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.671.352.111.792.11
Total Volume3,198,836.8181,535,3945,862,5874,072,5923,028,727
Total OI19,848,250.68218,355,69721,704,31018,355,69721,269,617

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2019-08-01$295.62$295.0015.1%4.6%7.5%31.9%17.1%6.9%-0.6%-5.45B14.93B-557.1M1.791.41N/AN/A1,458,9812,613,6116,332,06012,023,637
2019-08-02$292.89$295.0015.9%4.7%8.1%35.3%17.8%7.0%-0.6%-9.01B35.67B-558.8M1.611.23N/AN/A1,659,5992,665,1516,666,35512,260,633
2019-08-05$284.60$293.0020.9%5.9%12.8%57.3%21.1%8.6%0.1%-6.93B76.29B-549.7M1.801.28N/AN/A2,091,9153,770,6726,537,59311,826,491
2019-08-06$287.32$293.0018.2%5.3%13.4%45.8%19.4%8.2%-0.0%-5.72B51.66B-553.0M1.641.03N/AN/A1,323,4332,169,7106,820,86412,137,056
2019-08-07$288.35$293.0017.7%5.2%13.3%43.3%19.7%8.0%-0.4%-5.01B41.89B-558.3M1.611.22N/AN/A1,413,6632,271,6047,093,20512,505,490
2019-08-08$293.43$293.0014.7%4.5%14.9%30.2%17.6%6.9%-0.3%-1.95B1.00B-557.1M1.671.15N/AN/A1,154,0211,923,4967,148,38512,672,123
2019-08-09$292.71$292.0014.9%4.6%14.8%30.6%17.7%6.9%0.2%-2.44B7.24B-565.3M1.381.22N/AN/A1,287,6071,781,9987,356,55513,456,209
2019-08-12$288.18$292.0018.5%5.5%15.6%46.7%20.2%8.0%0.2%-6.02B43.26B-563.6M1.620.98N/AN/A1,134,3021,842,0187,061,22712,953,859
2019-08-13$292.24$292.0016.2%4.9%16.6%36.2%19.2%7.2%0.3%-2.88B9.60B-560.0M1.901.22N/AN/A1,048,5201,988,8547,129,21513,053,124
2019-08-14$284.49$292.0020.9%6.1%18.9%57.4%21.9%7.9%-0.9%-8.25B71.19B-563.4M1.471.35N/AN/A2,086,7143,066,8277,209,34713,548,362
2019-08-15$285.02$292.0019.8%5.9%18.9%52.2%20.9%7.6%-0.5%-6.85B59.12B-569.6M1.351.12N/AN/A1,291,8821,743,5947,663,22013,486,579
2019-08-16$288.83$292.0016.6%5.1%19.7%38.3%19.2%6.9%0.4%-3.45B26.33B-566.0M1.621.28N/AN/A1,157,9631,880,5477,988,72513,715,585
2019-08-19$292.65$291.0014.6%4.5%20.4%29.2%17.5%6.5%1.0%78.2M-353.5M-544.5M1.621.19N/AN/A934,9681,510,6716,679,38612,059,092
2019-08-20$290.79$291.0015.8%4.6%20.2%34.7%17.9%6.4%0.8%-2.01B14.61B-549.1M1.551.21N/AN/A812,0151,256,5226,705,93212,164,484
2019-08-21$292.32$291.0015.1%4.3%20.3%31.6%16.4%6.4%-0.5%-298.9M1.88B-543.5M1.491.01N/AN/A868,7231,293,0476,897,35612,464,067
2019-08-22$292.73$292.0015.3%4.5%20.3%32.6%17.1%7.0%-0.8%-505.4M2.38B-551.4M1.671.03N/AN/A777,9551,299,0506,930,60412,427,555
2019-08-23$285.11$292.0019.3%5.7%21.9%50.3%20.1%7.5%0.0%-6.72B59.47B-558.7M1.731.31N/AN/A1,775,8983,068,9507,088,58012,752,097
2019-08-26$286.79$291.0018.4%5.5%22.1%46.4%19.8%8.1%0.0%-4.27B41.29B-555.4M1.871.08N/AN/A534,8091,000,5857,199,14912,588,725
2019-08-27$287.26$291.0018.6%5.6%22.1%47.0%19.8%8.2%-0.2%-3.53B37.56B-562.7M1.551.08N/AN/A978,3101,521,1627,233,32512,683,139
2019-08-28$288.68$291.0017.5%5.2%22.2%42.4%19.5%8.2%-0.4%-1.94B27.20B-572.1M1.601.06N/AN/A842,6071,350,0897,487,62213,002,175
2019-08-29$292.54$291.0015.6%4.7%22.6%33.7%18.3%7.8%-0.6%1.17B-956.8M-567.4M2.091.10N/AN/A873,0551,820,5857,439,74412,942,967
2019-08-30$292.35$292.0016.1%4.9%22.3%36.2%19.8%8.1%0.1%582.3M3.28B-575.4M2.111.15N/AN/A973,2712,055,4567,587,18313,682,434