C Options History — September 2021

In September 2021, C traded between $67.01 and $72.37. ATM implied volatility averaged 28.0%, placing in the 18.1% IV rank vs the trailing year. The 30-day expected move averaged 8.2%. IV traded above realized volatility by 4.2% (HV 20d: 23.8%). Max pain ranged from $70.00 to $70.00. Net GEX was positive for 9 of 21 trading days. Term structure was in contango for 12 of 21 days. Put/call ratio averaged 0.79.

Notable Days

  • 2021-09-14: Highest Volume — 223,972 contracts
  • 2021-09-20: Largest IV spike — 21.2% change
  • 2021-09-20: Highest IV Rank — 43.1%
  • 2021-09-20: Largest Expected Move — 10.0%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$70.30$67.01$72.37$71.37$70.37
Max Pain$70.00$70.00$70.00$70.00$70.00
ATM IV28.0%23.9%34.2%24.4%32.3%
Expected Move8.2%6.6%10.0%6.6%9.6%
HV 20d23.8%18.0%29.3%21.8%29.3%
HV 60d25.4%23.3%26.4%26.1%25.8%
IV Rank18.1%1.6%43.1%3.6%35.7%
IV Percentile27.5%0.8%52.8%2.4%47.2%
Term Structure0.3%-1.4%2.1%0.5%-0.8%
VWIV29.1%23.5%35.7%23.5%35.7%
Skew 25d5.5%3.3%9.7%3.7%6.2%
Skew 10d13.0%8.1%28.2%8.1%11.9%
Call IV 25d26.3%22.7%30.8%23.2%29.7%
Put IV 25d31.8%26.1%40.5%26.9%35.9%
Bid-Ask Spread %2.721.777.373.092.60
Gamma HHI0.080.060.170.060.08
Net GEX-3.8M-50.6M33.0M9.3M5.3M
Net DEX-349.4M-1.13B730.0M-736.0M-430.1M
Net VEX-24.0M-24.9M-22.9M-24.7M-24.4M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.790.421.400.550.50
Total Volume89,523.38141,648223,97241,64867,073
Total OI2,268,501.4292,052,1852,518,4092,306,1112,243,421

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2021-09-01$71.37$70.0024.4%6.6%21.8%3.6%23.5%3.7%0.5%9.3M-736.0M-24.7M0.553.0926,92214,7261,058,8041,247,307
2021-09-02$71.23$70.0024.2%7.6%21.3%2.9%27.1%3.3%0.6%8.6M-710.3M-24.4M0.762.3038,91829,7481,066,1131,249,948
2021-09-03$71.16$70.0023.9%7.5%19.9%1.6%25.9%3.4%0.6%17.9M-672.4M-23.8M0.431.9460,90526,4071,069,4791,255,363
2021-09-07$70.94$70.0025.3%7.8%19.8%7.1%26.9%3.3%1.9%-6.4M-499.8M-24.2M0.702.1830,96721,7571,039,1021,244,891
2021-09-08$70.06$70.0025.5%7.7%19.0%8.0%27.0%5.1%1.5%-20.6M-137.9M-23.6M0.837.3729,11224,0291,047,4151,251,721
2021-09-09$70.74$70.0025.1%7.7%18.0%6.6%26.8%4.1%2.1%-10.1M-428.4M-23.3M0.422.2039,25716,3161,058,9411,258,721
2021-09-10$69.55$70.0026.6%8.0%18.7%12.6%28.6%4.4%1.8%-29.7M89.4M-23.4M0.632.0264,52440,9541,066,3291,267,594
2021-09-13$70.44$70.0027.6%8.0%19.2%16.4%28.8%6.1%-0.2%-15.3M-304.7M-22.9M0.701.9137,85526,6681,054,5501,257,467
2021-09-14$68.72$70.0030.3%8.8%20.3%27.5%28.5%5.9%-1.4%-32.9M416.5M-23.6M0.835.95122,407101,5651,085,4151,272,510
2021-09-15$70.77$70.0028.5%8.2%23.1%20.3%28.6%6.1%-1.0%-7.7M-542.8M-23.3M1.231.7766,09281,4891,096,0971,281,651
2021-09-16$70.26$70.0027.5%7.9%23.2%16.3%27.7%5.2%-0.1%-23.1M-261.6M-23.9M0.732.5438,12027,9271,154,7271,313,209
2021-09-17$70.10$70.0028.2%8.1%21.4%18.9%28.7%6.3%-0.2%-50.6M-224.0M-24.3M1.102.1742,55046,8791,179,0671,339,342
2021-09-20$67.01$70.0034.2%10.0%26.6%43.1%35.7%9.7%-0.5%-19.3M702.5M-23.4M1.112.5065,78673,243941,9501,110,235
2021-09-21$67.19$70.0031.8%9.4%26.2%33.5%33.1%9.1%0.5%-23.0M730.0M-23.2M1.112.5644,59049,308950,5731,120,085
2021-09-22$68.65$70.0028.5%8.3%26.9%20.0%30.0%7.5%0.5%-12.0M263.1M-23.8M0.862.1355,63647,833972,4981,160,035
2021-09-23$70.94$70.0027.8%7.9%29.0%17.3%27.8%4.9%0.8%15.2M-665.3M-24.7M0.752.7265,76749,223983,9301,184,476
2021-09-24$71.22$70.0027.4%7.8%28.8%15.8%27.1%5.2%0.2%33.0M-856.2M-24.6M0.622.1442,40626,126997,2771,197,201
2021-09-27$72.37$70.0028.0%7.8%29.3%18.0%28.2%4.7%0.0%31.2M-1.13B-24.9M0.582.3852,59830,369983,8341,181,735
2021-09-28$71.62$70.0030.0%8.8%28.9%26.3%32.1%5.8%-0.4%25.4M-983.4M-24.4M1.402.6140,82357,053999,5081,189,079
2021-09-29$71.59$70.0030.5%8.9%28.9%28.3%32.4%5.1%-0.1%25.2M-958.3M-24.8M0.802.0831,09624,9671,011,4601,195,470
2021-09-30$70.37$70.0032.3%9.6%29.3%35.7%35.7%6.2%-0.8%5.3M-430.1M-24.4M0.502.6044,73622,3371,022,2301,221,191