SPX Options History — October 2019

In October 2019, SPX traded between $2890.97 and $3045.43. ATM implied volatility averaged 13.5%, placing in the 19.9% IV rank vs the trailing year. The 30-day expected move averaged 3.8%. IV traded above realized volatility by 0.0% (HV 20d: 13.5%). Max pain ranged from $2925.00 to $2970.00. Net GEX was positive for 15 of 23 trading days. Term structure was in contango for 13 of 23 days. Put/call ratio averaged 1.80.

Notable Days

  • 2019-10-02: Highest Volume — 1,497,973 contracts
  • 2019-10-08: Largest IV spike — 17.8% change
  • 2019-10-02: Highest IV Rank — 48.4%
  • 2019-10-02: Largest Expected Move — 5.6%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$2978.45$2890.97$3045.43$2943.80$3031.94
Max Pain$2941.96$2925.00$2970.00$2950.00$2970.00
ATM IV13.5%10.2%19.0%16.3%10.9%
Expected Move3.8%2.8%5.6%4.7%3.0%
HV 20d13.5%10.8%15.1%10.8%11.3%
HV 60d15.8%14.7%16.4%14.9%14.8%
IV Rank19.9%3.2%48.4%35.8%6.5%
IV Percentile42.4%8.3%89.7%71.4%15.9%
Term Structure-0.0%-0.5%0.3%0.1%-0.2%
VWIV14.8%11.2%20.9%17.2%11.8%
Skew 25d5.6%3.9%7.7%7.6%4.6%
Skew 10d9.9%7.7%13.0%13.0%8.9%
Call IV 25d11.1%8.9%15.2%12.6%9.4%
Put IV 25d16.7%12.9%22.4%20.2%14.0%
Bid-Ask Spread %10.717.0415.549.7312.99
Gamma HHI0.030.010.090.020.03
Net GEX8.79B-28.25B41.70B-14.53B19.86B
Net DEX-45.40B-168.49B160.56B48.13B-121.49B
Net VEX-2.64B-2.90B-2.30B-2.80B-2.36B
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.801.322.312.181.81
Total Volume755,832.087493,3761,497,973801,255882,869
Total OI8,275,161.1747,658,4779,148,4877,835,8178,170,628

Daily Data (23 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2019-10-01$2943.80$2950.0016.3%4.7%10.8%35.8%17.2%7.6%0.1%-14.53B48.13B-2.80B2.189.73251,584549,6712,157,4395,678,378
2019-10-02$2890.97$2950.0019.0%5.6%12.0%48.4%20.9%7.2%-0.5%-28.25B160.56B-2.84B1.9110.97515,558982,4152,237,0735,958,629
2019-10-03$2904.08$2930.0018.0%5.1%11.0%43.9%20.0%7.5%-0.5%-19.57B114.47B-2.88B2.317.04289,483669,3762,283,6335,948,017
2019-10-04$2948.97$2925.0015.1%4.4%12.5%30.5%17.0%6.8%0.2%-4.45B3.99B-2.85B2.117.18301,774635,7102,392,9546,188,806
2019-10-07$2944.14$2930.0015.6%4.5%12.5%31.6%17.1%7.1%0.1%-4.90B17.68B-2.85B1.818.86266,306480,9062,265,5135,992,989
2019-10-08$2900.45$2930.0018.3%5.2%13.5%42.7%17.9%7.7%0.1%-18.43B108.61B-2.90B1.498.05299,870445,6372,289,4876,021,963
2019-10-09$2920.91$2925.0017.1%4.9%13.4%36.8%17.2%7.3%-0.4%-11.64B63.10B-2.90B2.0513.56213,112437,2412,381,1046,232,126
2019-10-10$2936.67$2925.0016.2%4.6%13.3%32.3%15.6%7.0%-0.4%-5.65B23.93B-2.90B1.938.14209,914405,6762,359,7426,225,653
2019-10-11$2980.69$2925.0014.2%4.1%14.5%22.5%14.9%6.2%0.0%14.86B-85.94B-2.86B1.9013.62373,918709,1052,460,4206,391,906
2019-10-14$2965.98$2925.0013.3%3.9%14.5%18.1%12.8%5.6%0.2%2.15B-35.22B-2.82B1.699.03248,378420,1212,356,2366,241,027
2019-10-15$2997.61$2925.0011.5%3.3%15.0%9.4%16.2%4.7%0.2%16.22B-107.39B-2.78B1.969.63202,440396,0032,350,9546,193,379
2019-10-16$2989.32$2935.0012.0%3.4%15.0%11.8%14.8%4.9%0.0%9.23B-83.68B-2.82B1.429.40284,096404,4172,436,6736,409,557
2019-10-17$3000.22$2940.0011.7%3.3%15.1%10.3%12.8%4.7%0.1%17.22B-108.97B-2.84B1.669.35185,420307,9562,473,5166,408,088
2019-10-18$2991.08$2945.0012.2%3.5%15.0%12.8%16.1%5.0%0.2%9.17B-80.20B-2.87B1.6110.07319,510515,1812,563,5316,584,956
2019-10-21$3005.75$2950.0011.9%3.3%15.1%11.4%13.7%4.6%0.2%21.72B-100.19B-2.30B1.519.40253,213382,1512,141,0815,540,721
2019-10-22$2997.33$2950.0012.3%3.4%14.6%13.1%14.0%4.7%0.2%14.72B-73.24B-2.32B1.9110.59187,637358,1612,157,4695,501,008
2019-10-23$3001.32$2950.0012.1%3.3%14.4%12.1%11.2%5.0%-0.2%13.74B-78.20B-2.32B1.7111.02209,349357,8132,209,4685,677,907
2019-10-24$3008.90$2950.0011.3%3.1%14.4%8.4%11.2%4.6%-0.2%19.63B-94.90B-2.31B1.3612.33218,196296,8322,203,6985,610,672
2019-10-25$3023.05$2950.0010.4%2.8%14.2%3.9%11.2%4.1%0.3%41.70B-137.38B-2.31B1.3212.58349,985461,8372,291,5465,771,409
2019-10-28$3039.59$2955.0010.8%2.9%14.1%5.8%11.5%3.9%-0.2%41.28B-165.68B-2.30B1.6113.67283,782458,2172,213,5275,489,465
2019-10-29$3036.13$2960.0011.0%3.0%13.2%7.1%12.8%4.3%-0.2%29.22B-143.77B-2.32B2.1413.58196,577421,0272,232,7545,547,442
2019-10-30$3045.43$2970.0010.2%2.8%11.0%3.2%11.4%4.1%-0.1%38.79B-168.49B-2.31B2.0915.54240,981504,7332,294,8345,791,329
2019-10-31$3031.94$2970.0010.9%3.0%11.3%6.5%11.8%4.6%-0.2%19.86B-121.49B-2.36B1.8112.99313,718569,1512,300,7495,869,879