SPY Options History — May 2017

In May 2017, SPY traded between $236.28 and $241.91. ATM implied volatility averaged 8.5%, placing in the 9.3% IV rank vs the trailing year. The 30-day expected move averaged 2.7%. IV traded above realized volatility by 1.4% (HV 20d: 7.1%). Max pain ranged from $234.00 to $237.00. Net GEX was positive for 19 of 22 trading days. Term structure was in contango for 14 of 22 days. Put/call ratio averaged 1.68.

Notable Days

  • 2017-05-17: Highest Volume — 5,027,093 contracts
  • 2017-05-17: Largest IV spike — 44.2% change
  • 2017-05-17: Highest IV Rank — 38.8%
  • 2017-05-17: Largest Expected Move — 3.5%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$239.53$236.28$241.91$239.00$241.45
Max Pain$235.45$234.00$237.00$237.00$237.00
ATM IV8.5%7.4%12.2%7.4%8.4%
Expected Move2.7%2.2%3.5%2.2%2.6%
HV 20d7.1%6.4%8.8%6.8%7.4%
HV 60d7.4%7.1%7.9%7.5%7.1%
IV Rank9.3%0.0%38.8%0.0%8.2%
IV Percentile11.7%0.0%74.2%0.0%8.3%
Term Structure0.3%-1.0%1.0%0.7%0.5%
VWIV10.4%8.6%13.3%8.7%9.9%
Skew 25d3.5%2.6%5.8%2.8%4.1%
Skew 10d6.9%4.8%13.1%5.6%7.7%
Call IV 25d7.2%6.5%9.8%6.8%6.6%
Put IV 25d10.7%9.1%15.6%9.6%10.7%
Bid-Ask Spread %2.581.443.983.923.83
Gamma HHI0.050.040.070.060.05
Net GEX2.60B-8.82B7.16B4.66B1.36B
Net DEX-18.64B-36.01B34.59B-24.24B-25.23B
Net VEX-434.2M-471.9M-409.2M-433.1M-420.5M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.681.101.961.451.86
Total Volume2,340,027.8641,306,8385,027,0931,642,6202,085,252
Total OI23,108,741.68220,960,09125,988,40521,622,25022,066,826

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2017-05-01$239.00$237.007.4%2.2%6.8%0.0%8.7%2.8%0.7%4.66B-24.24B-433.1M1.453.92N/AN/A671,820970,8007,073,69614,548,554
2017-05-02$238.58$237.008.0%2.4%6.7%4.7%9.0%2.8%0.7%3.55B-21.06B-423.1M1.723.42N/AN/A657,7331,131,4477,270,02014,813,272
2017-05-03$238.54$237.008.3%2.4%6.7%7.8%8.6%3.2%-0.0%1.01B-15.37B-437.2M1.103.98N/AN/A1,096,8021,203,6067,468,37215,188,891
2017-05-04$238.68$234.008.1%2.7%6.7%5.7%10.9%2.9%-0.0%3.30B-19.19B-437.6M1.452.64N/AN/A838,3591,216,4457,547,80915,222,932
2017-05-05$239.46$234.008.3%2.8%6.7%7.3%10.8%3.1%0.3%7.16B-32.93B-424.9M1.942.64N/AN/A891,6071,726,9897,754,29515,587,369
2017-05-08$239.41$234.007.6%2.7%6.7%1.9%10.6%2.6%0.0%4.83B-25.99B-419.6M1.462.23N/AN/A834,4041,216,2487,425,64515,286,599
2017-05-09$239.26$234.007.7%2.7%6.8%3.0%10.2%2.7%-0.0%3.83B-21.68B-430.8M1.591.44N/AN/A748,2111,189,7387,584,94715,639,082
2017-05-10$239.76$235.007.6%2.6%6.6%2.0%10.8%2.9%0.7%6.84B-29.14B-437.1M1.671.81N/AN/A703,9651,175,8667,754,61916,026,573
2017-05-11$239.45$235.008.1%2.8%6.5%5.7%11.2%3.1%0.9%4.81B-21.26B-444.1M1.531.80N/AN/A915,6061,404,0007,782,13516,178,742
2017-05-12$238.89$235.008.1%2.7%6.4%5.8%11.0%3.3%0.7%242.5M-12.72B-449.1M1.911.80N/AN/A828,5791,580,2567,937,69616,566,312
2017-05-15$240.17$235.008.1%2.6%6.5%6.0%10.0%3.1%0.9%6.90B-32.37B-415.4M1.621.77N/AN/A692,4261,124,0387,647,92716,306,171
2017-05-16$240.08$235.008.5%2.5%6.5%8.8%10.5%3.4%0.9%5.90B-27.74B-430.0M1.651.74N/AN/A723,7871,192,7237,811,81016,698,062
2017-05-17$236.28$235.0012.2%3.5%8.8%38.8%13.3%5.8%-0.5%-8.82B34.59B-471.9M1.952.60N/AN/A1,706,6493,320,4447,974,06117,019,916
2017-05-18$237.13$235.0011.3%3.3%8.1%31.7%12.9%5.5%-0.4%-5.44B14.71B-461.9M1.632.26N/AN/A1,361,7612,214,9588,182,48217,181,729
2017-05-19$238.14$235.0010.3%3.0%8.1%23.1%12.3%4.6%-0.4%-2.94B1.32B-462.3M1.912.23N/AN/A1,455,3252,784,0188,389,87817,598,527
2017-05-22$239.60$235.008.8%2.6%7.6%11.2%10.0%4.0%-0.1%653.4M-11.77B-438.1M1.442.41N/AN/A743,3761,073,1026,483,23514,476,856
2017-05-23$239.88$236.008.6%2.6%7.3%10.0%10.6%3.9%0.1%808.2M-13.54B-438.8M1.962.58N/AN/A607,0431,189,0936,653,28214,814,049
2017-05-24$240.59$236.008.1%2.4%7.3%6.0%9.3%3.9%0.2%3.67B-25.09B-422.6M1.952.49N/AN/A590,5911,152,5526,792,75915,152,342
2017-05-25$241.91$236.008.0%2.4%7.6%4.8%9.7%3.1%1.0%6.33B-36.01B-424.7M1.713.01N/AN/A1,147,6161,961,0816,802,05815,172,272
2017-05-26$241.74$236.008.0%2.4%7.5%5.5%9.1%3.1%0.8%4.25B-34.38B-420.2M1.742.74N/AN/A747,4271,298,0327,103,09615,727,626
2017-05-30$241.75$237.008.2%2.5%7.4%6.6%9.2%3.7%-1.0%4.24B-31.05B-409.2M1.763.41N/AN/A473,373833,4656,959,44414,720,349
2017-05-31$241.45$237.008.4%2.6%7.4%8.2%9.9%4.1%0.5%1.36B-25.23B-420.5M1.863.83N/AN/A729,0791,356,1737,076,89414,989,932