C Options History — May 2021

In May 2021, C traded between $71.92 and $78.67. ATM implied volatility averaged 27.4%, placing in the 5.1% IV rank vs the trailing year. The 30-day expected move averaged 7.8%. IV traded above realized volatility by 5.3% (HV 20d: 22.1%). Max pain ranged from $70.50 to $75.00. Net GEX was positive for 20 of 20 trading days. Term structure was in contango for 18 of 20 days. Put/call ratio averaged 0.73.

Notable Days

  • 2021-05-07: Highest Volume — 132,982 contracts
  • 2021-05-12: Largest IV spike — 15.5% change
  • 2021-05-12: Highest IV Rank — 18.4%
  • 2021-05-12: Largest Expected Move — 9.4%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$75.98$71.92$78.67$71.92$78.67
Max Pain$73.00$70.50$75.00$70.50$75.00
ATM IV27.4%25.2%33.1%26.0%25.2%
Expected Move7.8%6.6%9.4%7.3%6.6%
HV 20d22.1%16.2%24.7%21.5%16.2%
HV 60d24.0%21.2%25.3%24.8%21.2%
IV Rank5.1%0.1%18.4%1.9%0.1%
IV Percentile4.5%0.4%11.5%1.2%0.4%
Term Structure0.7%-0.2%1.9%0.5%1.1%
VWIV28.1%23.6%33.4%26.9%23.6%
Skew 25d2.2%1.2%4.4%2.2%1.8%
Skew 10d5.2%0.7%12.8%5.9%1.3%
Call IV 25d27.2%24.6%31.9%25.9%24.6%
Put IV 25d29.5%26.4%36.3%28.2%26.4%
Bid-Ask Spread %2.882.064.202.592.92
Gamma HHI0.120.080.310.100.12
Net GEX68.9M35.3M140.6M35.3M59.0M
Net DEX-2.46B-3.17B-1.27B-1.27B-2.84B
Net VEX-18.2M-19.2M-17.0M-18.3M-17.3M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.730.341.580.450.83
Total Volume80,672.650,013132,98280,01297,054
Total OI1,846,849.71,745,6681,941,9441,745,6681,836,687

Daily Data (20 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2021-05-03$71.92$70.5026.0%7.3%21.5%1.9%26.9%2.2%0.5%35.3M-1.27B-18.3M0.452.5955,14324,869778,977966,691
2021-05-04$72.02$71.0027.8%8.0%21.4%6.2%29.5%2.6%0.3%38.4M-1.36B-18.7M0.762.7742,52732,240803,798978,600
2021-05-05$73.70$71.0027.1%7.7%23.0%4.5%27.0%1.9%-0.0%63.6M-1.99B-18.4M0.342.9066,10322,422823,019994,095
2021-05-06$74.65$72.5027.1%8.0%23.4%4.5%28.9%1.8%0.1%77.2M-2.36B-18.4M0.833.2738,24531,797839,8781,003,115
2021-05-07$75.01$72.5025.8%7.7%23.4%1.5%28.3%1.3%0.7%106.8M-2.46B-18.5M0.353.8898,83134,151843,5021,011,891
2021-05-10$75.58$72.5027.2%8.0%23.4%4.9%29.0%1.8%0.5%74.5M-2.59B-18.6M0.862.6858,65350,276841,1211,000,176
2021-05-11$74.76$72.5028.6%8.4%23.6%8.1%30.5%2.9%0.8%61.2M-2.22B-18.8M0.744.2041,51930,764842,4101,015,981
2021-05-12$74.22$72.5033.1%9.4%23.6%18.4%33.4%4.4%-0.2%45.4M-1.96B-19.2M0.833.1041,68734,731836,6341,025,372
2021-05-13$75.83$72.5029.5%8.6%24.6%10.1%30.3%3.3%0.7%62.7M-2.55B-18.4M0.573.3838,37521,875844,8931,041,151
2021-05-14$76.48$72.5026.5%7.6%24.6%3.1%28.3%1.8%0.3%75.1M-2.78B-18.2M0.592.5257,07133,947849,8561,049,769
2021-05-17$77.33$72.5028.2%8.1%24.7%7.1%29.8%2.1%0.7%74.0M-2.99B-17.7M0.802.5847,51738,136833,0521,032,749
2021-05-18$77.23$72.5027.6%7.9%20.9%5.6%28.4%1.6%0.9%79.3M-2.98B-17.8M1.582.5319,99331,556841,0071,050,825
2021-05-19$76.23$72.5029.8%8.6%21.6%10.9%30.5%3.4%0.6%70.3M-2.54B-18.2M0.393.2047,88818,546846,5611,059,920
2021-05-20$76.44$72.5026.9%7.6%21.1%4.0%27.5%2.5%1.9%103.0M-2.65B-18.7M0.902.2737,51133,779863,0481,062,760
2021-05-21$77.56$75.0027.0%7.6%20.7%4.2%28.0%2.2%0.9%140.6M-3.17B-18.1M0.532.2371,47837,667868,3421,073,602
2021-05-24$78.33$75.0025.7%7.1%20.4%1.4%25.6%2.1%1.0%55.4M-2.83B-17.0M0.872.0640,70235,380761,797990,606
2021-05-25$77.44$75.0027.0%7.4%21.1%4.4%27.9%1.2%0.7%50.3M-2.40B-18.6M1.192.2940,90648,866775,9001,010,760
2021-05-26$77.63$75.0025.4%6.7%21.1%0.7%24.3%1.3%1.3%49.0M-2.48B-17.7M0.672.2029,96720,046780,1751,034,694
2021-05-27$78.58$75.0025.7%6.8%21.2%1.2%24.6%2.2%1.1%56.7M-2.75B-17.9M0.594.0038,53722,697782,1361,041,444
2021-05-28$78.67$75.0025.2%6.6%16.2%0.1%23.6%1.8%1.1%59.0M-2.84B-17.3M0.832.9253,12843,926788,2601,048,427