C Options History — August 2025

In August 2025, C traded between $91.40 and $97.39. ATM implied volatility averaged 26.3%, placing in the 12.4% IV rank vs the trailing year. The 30-day expected move averaged 7.6%. IV traded above realized volatility by 4.0% (HV 20d: 22.3%). Max pain ranged from $75.00 to $90.00. Net GEX was positive for 21 of 21 trading days. Term structure was in contango for 17 of 21 days. Put/call ratio averaged 0.74.

Notable Days

  • 2025-08-01: Highest Volume — 211,012 contracts
  • 2025-08-22: Largest IV drop — 7.5% change
  • 2025-08-01: Highest IV Rank — 15.6%
  • 2025-08-21: Largest Expected Move — 8.0%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$93.97$91.40$97.39$91.80$96.47
Max Pain$77.86$75.00$90.00$90.00$80.00
ATM IV26.3%25.5%28.0%28.0%26.6%
Expected Move7.6%7.3%8.0%7.9%7.6%
HV 20d22.3%18.9%26.2%26.2%19.7%
HV 60d22.6%21.5%24.1%24.1%22.3%
IV Rank12.4%10.7%15.6%15.6%12.8%
IV Percentile40.6%35.3%52.8%51.6%41.7%
Term Structure0.2%-0.4%0.5%-0.4%0.1%
VWIV26.9%25.1%29.2%28.0%27.1%
Skew 25d3.1%2.4%3.8%3.4%2.8%
Skew 10d8.0%5.9%19.1%8.0%6.0%
Call IV 25d25.2%24.4%27.2%27.2%25.4%
Put IV 25d28.3%27.1%30.6%30.6%28.2%
Bid-Ask Spread %3.612.1012.424.652.24
Gamma HHI0.140.100.200.200.14
Net GEX101.3M16.6M162.2M16.6M115.5M
Net DEX-3.76B-4.66B-2.94B-3.19B-4.44B
Net VEX-22.3M-23.2M-21.6M-23.2M-21.9M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.740.361.930.440.97
Total Volume82,123.28634,154211,012211,01270,415
Total OI1,790,684.7621,674,5351,902,3811,840,7011,813,670

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2025-08-01$91.80$90.0028.0%7.9%26.2%15.6%28.0%3.4%-0.4%16.6M-3.19B-23.2M0.444.65146,98564,027935,970904,731
2025-08-04$92.14$75.0026.1%7.6%25.4%11.9%27.6%2.6%-0.3%103.8M-3.27B-22.6M1.042.9438,83040,522862,920875,499
2025-08-05$91.40$75.0026.9%7.7%24.7%13.5%29.2%3.3%0.2%97.1M-3.14B-22.3M0.592.1036,57021,611877,054895,376
2025-08-06$92.28$75.0025.9%7.6%24.7%11.4%26.5%2.9%0.5%109.1M-3.39B-21.8M1.933.5539,86576,875874,537900,801
2025-08-07$91.50$75.0026.2%7.6%24.7%12.0%28.2%2.9%0.4%48.2M-2.94B-22.1M1.282.2828,80136,927866,367962,016
2025-08-08$92.71$75.0025.7%7.7%25.0%11.0%26.1%3.2%0.5%84.5M-3.34B-22.6M0.742.4947,73535,169873,502967,297
2025-08-11$92.40$75.0026.8%7.7%25.1%13.2%26.5%3.2%0.2%72.7M-3.25B-22.6M0.623.2377,48048,319858,698954,259
2025-08-12$95.34$75.0025.5%7.5%22.7%10.8%25.9%2.8%0.4%138.2M-4.34B-22.0M0.503.6374,31437,072877,424972,606
2025-08-13$94.80$77.5025.5%7.5%22.4%10.7%26.2%2.4%0.3%132.4M-4.20B-22.0M0.6412.4250,06131,824890,668973,212
2025-08-14$94.99$77.5025.9%7.5%20.0%11.4%25.8%3.0%0.5%162.2M-4.32B-21.6M1.262.3651,12964,356908,535988,624
2025-08-15$93.88$77.5025.9%7.5%20.5%11.5%27.7%2.8%0.3%75.0M-3.74B-22.5M0.472.4742,74420,107918,232984,149
2025-08-18$94.27$77.5026.4%7.6%20.5%12.4%26.8%3.5%-0.1%84.5M-3.73B-21.7M0.463.2233,37315,360811,214863,321
2025-08-19$93.51$77.5026.8%7.7%20.1%13.3%26.9%3.0%0.1%82.2M-3.53B-22.6M0.469.5023,40810,746830,295871,969
2025-08-20$93.23$77.5027.2%7.8%18.9%14.1%26.7%3.4%0.1%81.3M-3.44B-22.7M0.382.7541,47715,639837,396876,635
2025-08-21$92.50$77.5027.8%8.0%19.0%15.3%27.9%3.8%-0.0%76.8M-3.31B-22.1M0.582.9644,34025,541844,006882,753
2025-08-22$95.19$77.5025.7%7.3%21.7%11.1%25.1%3.2%0.2%147.8M-4.12B-21.6M0.372.9288,47032,697862,869898,680
2025-08-25$95.09$80.0026.2%7.5%21.6%12.2%26.9%3.2%0.3%112.6M-3.99B-22.3M1.322.2714,95319,714868,278880,121
2025-08-26$95.41$80.0026.2%7.5%21.3%12.0%26.7%3.4%0.3%113.7M-4.05B-22.5M0.422.3733,17513,884873,885892,878
2025-08-27$97.39$80.0026.4%7.5%22.3%12.4%26.4%3.0%0.4%133.8M-4.66B-22.4M0.362.8062,82422,346875,342901,009
2025-08-28$96.98$80.0025.8%7.3%21.9%11.2%25.9%2.9%0.4%138.7M-4.55B-22.2M0.762.6525,52519,379886,670910,912
2025-08-29$96.47$80.0026.6%7.6%19.7%12.8%27.1%2.8%0.1%115.5M-4.44B-21.9M0.972.2435,67234,743894,243919,427