SPY Options History — August 2016

In August 2016, SPY traded between $215.55 and $219.15. ATM implied volatility averaged 10.2%, placing in the 4.3% IV rank vs the trailing year. The 30-day expected move averaged 3.0%. IV traded above realized volatility by 4.3% (HV 20d: 5.9%). Max pain ranged from $212.00 to $215.00. Net GEX was positive for 18 of 23 trading days. Term structure was in contango for 16 of 23 days. Put/call ratio averaged 1.41.

Notable Days

  • 2016-08-05: Highest Volume — 4,435,893 contracts
  • 2016-08-05: Largest IV drop — 10.3% change
  • 2016-08-25: Highest IV Rank — 12.6%
  • 2016-08-04: Largest Expected Move — 3.3%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$217.85$215.55$219.15$216.71$217.41
Max Pain$213.65$212.00$215.00$213.00$215.00
ATM IV10.2%9.2%11.5%10.6%11.0%
Expected Move3.0%2.6%3.3%2.9%3.1%
HV 20d5.9%5.1%8.2%8.2%5.2%
HV 60d12.5%12.2%13.1%13.0%12.2%
IV Rank4.3%0.0%12.6%3.7%9.9%
IV Percentile5.4%0.0%15.5%3.6%13.5%
Term Structure0.3%-0.3%1.0%0.1%-0.1%
VWIV11.4%10.1%12.8%11.3%11.5%
Skew 25d4.7%3.5%5.9%4.3%5.8%
Skew 10d9.1%7.0%10.7%8.6%10.2%
Call IV 25d8.5%7.4%9.6%8.8%8.8%
Put IV 25d13.2%11.2%15.2%13.1%14.6%
Bid-Ask Spread %1.471.231.861.231.47
Gamma HHI0.070.040.120.060.04
Net GEX4.25B-3.91B13.51B3.87B-2.04B
Net DEX-23.74B-47.25B3.69B-23.39B1.27B
Net VEX-419.4M-433.6M-404.9M-420.1M-413.1M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.410.532.192.111.42
Total Volume2,199,503.9571,383,1694,435,8931,799,9022,046,300
Total OI24,065,208.8721,517,54427,265,86221,979,96223,902,758

Daily Data (23 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2016-08-01$216.71$213.0010.6%2.9%8.2%3.7%11.3%4.3%0.1%3.87B-23.39B-420.1M2.111.23N/AN/A577,9121,221,9908,160,67313,819,289
2016-08-02$215.55$213.0011.4%3.2%7.8%7.4%10.7%4.6%0.1%893.2M-10.42B-429.2M1.101.27N/AN/A1,354,2741,487,5358,318,39014,160,738
2016-08-03$216.12$213.0010.8%3.0%7.7%4.7%10.4%4.5%0.1%2.36B-17.36B-424.6M0.901.31N/AN/A1,107,884997,7628,457,96614,395,188
2016-08-04$216.34$212.0010.4%3.3%7.6%2.8%12.8%4.3%0.2%2.93B-20.11B-426.9M1.691.49N/AN/A543,928920,3278,604,05214,695,619
2016-08-05$218.11$212.009.3%3.0%6.0%0.0%11.6%3.5%0.3%13.51B-47.25B-410.1M0.531.52N/AN/A2,905,5491,530,3448,802,40814,949,243
2016-08-08$217.96$212.009.4%2.9%6.0%0.2%12.2%4.0%0.8%7.84B-38.80B-418.9M1.721.53N/AN/A507,971875,1989,599,32614,554,106
2016-08-09$218.13$212.009.5%2.9%5.6%0.5%11.6%4.0%0.8%8.05B-39.29B-425.3M1.721.44N/AN/A587,0371,009,5919,715,57014,769,851
2016-08-10$217.52$212.009.9%3.0%5.7%2.6%12.3%4.3%0.6%5.56B-30.24B-424.8M2.191.47N/AN/A471,7001,032,1419,849,86814,974,517
2016-08-11$218.77$212.009.3%2.9%5.8%0.0%11.3%4.0%0.9%9.96B-46.52B-420.6M0.861.41N/AN/A1,407,0311,213,6879,928,30315,181,141
2016-08-12$218.48$213.009.4%2.9%5.7%0.5%11.3%4.0%1.0%9.47B-41.24B-412.7M0.831.39N/AN/A1,430,9591,187,48610,083,24715,550,267
2016-08-15$219.15$213.009.7%2.9%5.7%1.8%11.0%4.1%0.0%10.76B-47.16B-413.4M1.351.43N/AN/A778,0061,047,1169,927,64115,216,928
2016-08-16$218.15$214.0010.7%3.1%6.0%5.9%12.8%4.7%0.4%6.77B-32.44B-426.2M1.741.44N/AN/A788,1001,370,95410,065,23815,539,956
2016-08-17$218.40$214.0010.4%3.0%5.6%4.9%11.6%4.5%0.5%6.93B-34.13B-414.5M1.361.86N/AN/A1,011,4401,375,99210,217,24116,057,306
2016-08-18$218.77$214.009.6%2.7%5.4%1.1%10.7%4.4%0.6%8.46B-39.11B-415.4M1.591.77N/AN/A740,4811,175,32210,274,39716,460,560
2016-08-19$218.62$215.009.2%2.6%5.2%0.0%10.1%4.2%0.7%5.80B-35.17B-412.7M0.941.41N/AN/A1,294,1281,219,63310,418,62516,847,237
2016-08-22$218.51$215.009.8%2.8%5.1%2.5%10.9%5.3%0.1%1.68B-15.63B-404.9M1.591.51N/AN/A686,9781,092,6288,282,35113,235,193
2016-08-23$218.98$215.0010.1%2.8%5.1%3.7%10.5%5.3%-0.1%2.73B-19.24B-404.9M1.851.41N/AN/A764,6721,413,3558,261,31713,656,131
2016-08-24$217.94$215.0011.0%3.1%5.4%8.9%12.2%5.4%-0.3%-963.4M-2.12B-432.4M1.681.65N/AN/A696,3331,167,8238,501,40114,337,192
2016-08-25$217.50$215.0011.5%3.2%5.4%12.6%11.2%5.9%-0.1%-2.06B2.37B-433.6M0.771.32N/AN/A1,467,4561,127,1968,685,55114,581,373
2016-08-26$217.31$215.0011.3%3.2%5.4%11.6%11.8%5.7%-0.3%-3.91B3.69B-429.7M1.301.45N/AN/A1,734,5362,260,5648,935,62214,856,670
2016-08-29$218.31$215.0010.6%2.9%5.6%7.7%11.3%5.9%-0.2%300.2M-9.44B-417.5M1.701.41N/AN/A562,118954,4678,659,45814,465,396
2016-08-30$217.92$215.0010.4%2.9%5.2%6.5%10.6%5.1%-0.1%-1.15B-4.20B-414.9M1.401.56N/AN/A601,324841,3638,834,71714,709,783
2016-08-31$217.41$215.0011.0%3.1%5.2%9.9%11.5%5.8%-0.1%-2.04B1.27B-413.1M1.421.47N/AN/A843,9981,202,3029,007,35014,895,408