S Options History — September 2021

In September 2021, S traded between $53.90 and $72.47. ATM implied volatility averaged 70.5%, placing in the 29.3% IV rank vs the trailing year. The 30-day expected move averaged 19.6%. IV traded below realized volatility by 0.4% (HV 20d: 70.9%). Max pain ranged from $55.00 to $70.00. Net GEX was positive for 13 of 21 trading days. Term structure was in contango for 8 of 21 days. Put/call ratio averaged 0.76.

Notable Days

  • 2021-09-09: Highest Volume — 14,352 contracts
  • 2021-09-07: Largest IV spike — 25.8% change
  • 2021-09-07: Highest IV Rank — 50.4%
  • 2021-09-01: Largest Expected Move — 24.5%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$63.54$53.90$72.47$67.15$53.90
Max Pain$63.57$55.00$70.00$55.00$60.00
ATM IV70.5%62.7%104.4%85.6%65.1%
Expected Move19.6%18.0%24.5%24.5%18.7%
HV 20d70.9%60.2%82.2%60.2%76.5%
HV 60d365.1%364.0%365.9%365.7%365.3%
IV Rank29.3%24.5%50.4%38.7%25.9%
IV Percentile61.1%50.8%87.3%75.4%58.3%
Term Structure-2.3%-13.1%2.4%-13.1%-0.6%
VWIV70.0%63.9%88.4%88.4%65.3%
Skew 25d-1.5%-5.6%3.8%3.8%-5.6%
Skew 10d-1.9%-10.4%10.0%10.0%-10.4%
Call IV 25d70.7%64.9%86.7%86.7%68.5%
Put IV 25d69.2%62.9%90.5%90.5%62.9%
Bid-Ask Spread %38.1518.9663.1418.9659.88
Gamma HHI0.170.110.350.150.16
Net GEX269.5K-429.1K2.1M745.7K-145.5K
Net DEX-21.9M-66.7M12.7M-44.7M10.5M
Net VEX-199.0K-242.8K-142.0K-169.2K-236.8K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.760.062.630.550.06
Total Volume6,423.2382,27714,3525,1629,981
Total OI28,442.23820,17437,54720,17435,056

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2021-09-01$67.15$55.0085.6%24.5%60.2%38.7%88.4%3.8%-13.1%745.7K-44.7M-169.2K0.5518.96N/AN/A3,3301,83213,1906,984
2021-09-02$64.54$60.0082.5%20.7%61.8%36.8%72.7%1.6%-6.4%613.8K-37.2M-165.6K0.5737.88N/AN/A1,45282513,0987,466
2021-09-03$68.69$60.0083.0%20.4%62.6%37.1%71.5%0.9%-3.1%694.1K-47.1M-178.1K0.5236.05N/AN/A2,2591,18413,1818,288
2021-09-07$71.03$60.00104.4%22.3%62.2%50.4%79.9%1.6%-8.0%705.9K-53.8M-177.6K0.4432.26N/AN/A4,7422,06513,4468,727
2021-09-08$68.03$60.0078.9%22.6%64.3%34.6%80.5%1.1%-9.1%667.0K-46.6M-186.3K0.7726.45N/AN/A7,2865,59214,3219,326
2021-09-09$66.04$65.0066.9%19.2%61.2%27.0%68.7%-1.2%0.6%699.4K-41.0M-180.9K0.8832.48N/AN/A7,6286,72415,29510,122
2021-09-10$63.56$65.0065.8%18.9%62.2%26.4%67.4%-0.2%1.0%24.6K-26.7M-195.6K0.1733.51N/AN/A6,7351,12318,54914,245
2021-09-13$60.20$65.0067.0%19.2%66.5%27.1%68.9%-1.6%0.8%-208.2K-13.6M-183.7K1.1535.80N/AN/A3,4153,93618,99914,441
2021-09-14$61.99$65.0064.6%18.5%65.9%25.6%71.1%-0.9%2.1%-273.8K-12.2M-142.0K0.9930.28N/AN/A2,1802,16416,79214,691
2021-09-15$67.03$65.0062.7%18.0%66.2%24.5%64.1%-0.8%2.4%711.5K-38.0M-162.3K0.9135.58N/AN/A1,7611,60817,87416,083
2021-09-16$72.47$65.0063.3%18.1%69.2%24.8%64.4%-1.9%-0.9%2.1M-66.7M-173.9K0.8532.16N/AN/A5,7924,91719,11917,611
2021-09-17$68.97$65.0063.6%18.2%73.2%25.0%65.0%-4.5%0.5%436.9K-44.7M-178.7K0.5028.14N/AN/A2,6091,31519,47118,076
2021-09-20$63.08$70.0067.9%19.5%82.2%27.7%69.8%-5.1%-3.2%36.0K-4.2M-235.3K0.4533.24N/AN/A2,2401,00612,34311,479
2021-09-21$63.70$70.0064.9%18.6%81.7%25.8%66.9%-2.5%-1.4%47.6K-5.6M-242.2K2.6344.07N/AN/A1,8004,73512,86611,807
2021-09-22$64.31$65.0062.8%18.0%78.1%24.5%63.9%-0.5%0.2%34.0K-5.8M-239.9K0.5146.96N/AN/A2,1391,08412,86612,267
2021-09-23$60.65$65.0063.3%18.1%80.1%24.8%65.6%-3.9%-0.3%-86.1K-3.6M-206.4K0.6242.26N/AN/A4,8212,97313,75011,618
2021-09-24$60.82$65.0062.9%18.0%79.7%24.6%64.2%-3.1%0.2%-66.2K-4.7M-218.3K1.5142.71N/AN/A1,1301,70314,61611,922
2021-09-27$57.52$65.0068.1%19.5%78.0%27.8%68.7%-2.5%-2.6%-295.9K3.9M-233.6K0.3736.74N/AN/A4,2761,59016,88314,005
2021-09-28$55.14$65.0068.5%19.6%78.8%28.1%71.9%-2.3%-1.9%-429.1K12.7M-229.3K0.8352.50N/AN/A4,3543,62817,22414,801
2021-09-29$55.45$60.0069.8%20.0%78.8%28.8%70.4%-3.1%-5.3%-360.2K9.6M-242.8K0.7563.14N/AN/A2,8312,12318,96515,424
2021-09-30$53.90$60.0065.1%18.7%76.5%25.9%65.3%-5.6%-0.6%-145.5K10.5M-236.8K0.0659.88N/AN/A9,38859320,70614,350