SPX Options History — October 2023

In October 2023, SPX traded between $4116.45 and $4375.21. ATM implied volatility averaged 16.4%, placing in the 33.2% IV rank vs the trailing year. The 30-day expected move averaged 4.8%. IV traded above realized volatility by 3.6% (HV 20d: 12.8%). Max pain ranged from $4300.00 to $4420.00. Net GEX was positive for 3 of 22 trading days. Term structure was in contango for 11 of 22 days. Put/call ratio averaged 1.34.

Notable Days

  • 2023-10-06: Highest Volume — 3,912,313 contracts
  • 2023-10-13: Largest IV spike — 13.1% change
  • 2023-10-27: Highest IV Rank — 51.8%
  • 2023-10-27: Largest Expected Move — 5.6%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$4269.27$4116.45$4375.21$4277.60$4190.03
Max Pain$4346.82$4300.00$4420.00$4420.00$4300.00
ATM IV16.4%14.0%18.3%15.9%15.9%
Expected Move4.8%4.1%5.6%4.7%4.9%
HV 20d12.8%10.7%14.6%10.7%14.1%
HV 60d11.3%10.6%12.1%10.6%12.1%
IV Rank33.2%18.3%51.8%27.6%39.8%
IV Percentile52.0%33.3%69.0%45.6%48.8%
Term Structure-0.2%-1.2%0.2%0.1%0.1%
VWIV18.1%14.3%20.6%17.5%18.5%
Skew 25d4.9%3.8%6.3%4.3%4.3%
Skew 10d10.2%7.2%13.1%8.6%8.7%
Call IV 25d14.0%12.1%15.9%13.5%13.9%
Put IV 25d18.8%16.0%21.3%17.8%18.3%
Bid-Ask Spread %6.143.998.707.268.63
Gamma HHI0.020.020.030.020.02
Net GEX-34.58B-77.50B18.10B-50.72B-33.27B
Net DEX263.08B-266.19B924.54B288.17B499.31B
Net VEX-7.64B-8.13B-7.36B-7.37B-7.36B
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.341.171.631.321.32
Total Volume3,112,162.5912,619,1323,912,3132,701,5892,668,732
Total OI19,288,765.95517,959,65120,686,10517,959,65119,565,523

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2023-10-02$4277.60$4420.0015.9%4.7%10.7%27.6%17.5%4.3%0.1%-50.72B288.17B-7.37B1.327.261,164,9631,536,6266,105,55011,854,101
2023-10-03$4224.96$4410.0017.9%5.3%11.3%37.3%19.1%4.7%0.0%-67.73B513.71B-7.72B1.477.551,399,9492,058,5826,211,12812,006,001
2023-10-04$4262.91$4400.0016.5%4.7%11.8%30.4%16.8%4.2%-0.3%-37.72B317.41B-7.61B1.408.701,285,8851,795,8056,421,89512,274,869
2023-10-05$4263.36$4350.0016.2%4.6%11.9%28.9%18.3%4.0%-0.3%-41.55B312.90B-7.71B1.324.801,168,3261,547,6716,532,30412,450,080
2023-10-06$4317.71$4350.0015.1%4.4%13.0%23.4%16.9%3.8%0.1%-6.38B9.70B-7.71B1.204.961,778,2712,134,0426,583,31912,565,673
2023-10-09$4330.36$4340.0015.5%4.5%12.7%25.6%17.8%4.2%0.1%-4.96B-51.22B-7.71B1.295.051,195,7701,543,4736,582,15612,573,651
2023-10-10$4361.84$4340.0014.6%4.2%13.0%21.3%16.1%4.0%-0.1%16.44B-211.91B-7.54B1.314.631,369,3601,787,0986,638,26112,731,092
2023-10-11$4374.26$4350.0014.0%4.1%13.0%18.3%16.1%3.9%-0.3%18.10B-266.19B-7.55B1.324.461,126,8581,492,2746,749,46112,929,674
2023-10-12$4350.51$4350.0014.2%4.1%12.5%19.0%14.3%4.3%-0.3%-10.94B-107.01B-7.61B1.174.711,497,0851,750,0506,797,33113,029,633
2023-10-13$4320.29$4350.0016.0%4.7%12.0%28.1%18.2%5.6%0.2%-32.56B92.18B-7.96B1.634.801,282,9252,090,1296,887,74213,188,238
2023-10-16$4375.21$4350.0014.5%4.2%13.0%21.4%15.6%4.8%0.1%15.21B-240.08B-7.58B1.344.521,261,0851,691,1796,877,36613,190,111
2023-10-17$4362.06$4350.0015.3%4.4%13.0%26.2%17.7%5.2%0.0%-3.22B-155.56B-7.69B1.273.991,313,9321,669,6506,966,29313,259,295
2023-10-18$4307.35$4350.0017.2%4.9%13.4%37.1%20.0%5.9%-1.2%-46.98B186.79B-7.92B1.486.191,299,1631,922,2507,025,88713,435,380
2023-10-19$4270.81$4350.0018.0%5.2%12.6%41.5%19.7%6.3%-0.5%-64.18B393.44B-8.13B1.336.291,468,0911,946,7487,053,98613,632,119
2023-10-20$4228.08$4350.0018.0%5.3%13.0%41.5%19.1%6.1%0.2%-61.13B500.85B-7.83B1.206.351,657,8001,987,5386,395,27812,287,805
2023-10-23$4223.89$4340.0017.7%5.2%13.0%41.4%19.9%5.7%-0.3%-53.76B467.93B-7.63B1.376.601,251,6331,713,7786,338,49012,157,088
2023-10-24$4251.58$4330.0016.6%4.9%12.4%35.3%17.0%5.1%-0.3%-36.17B300.35B-7.77B1.266.961,193,5251,503,0136,421,56812,219,285
2023-10-25$4190.26$4325.0017.8%5.3%13.4%41.9%19.8%5.4%-0.4%-62.56B607.07B-7.52B1.345.971,246,9171,676,6896,496,81312,299,790
2023-10-26$4151.16$4325.0018.1%5.5%13.3%48.0%20.4%5.2%-0.4%-76.38B822.66B-7.39B1.317.501,542,5622,023,4686,574,26012,426,578
2023-10-27$4116.45$4300.0018.3%5.6%13.5%51.8%20.6%5.1%0.1%-77.50B924.54B-7.43B1.467.501,384,2442,021,8396,739,28212,567,895
2023-10-30$4173.19$4300.0017.0%5.2%14.6%44.9%18.9%4.7%0.0%-42.74B582.76B-7.40B1.307.631,314,6141,703,9856,788,28112,522,319
2023-10-31$4190.03$4300.0015.9%4.9%14.1%39.8%18.5%4.3%0.1%-33.27B499.31B-7.36B1.328.631,150,0821,518,6506,939,67612,625,847