DIA Options History — August 2025

In August 2025, DIA traded between $435.72 and $456.75. ATM implied volatility averaged 12.3%, placing in the 5.8% IV rank vs the trailing year. The 30-day expected move averaged 3.6%. IV traded above realized volatility by 1.1% (HV 20d: 11.2%). Max pain ranged from $430.00 to $445.00. Net GEX was positive for 15 of 21 trading days. Term structure was in contango for 12 of 21 days. Put/call ratio averaged 1.03.

Notable Days

  • 2025-08-22: Highest Volume — 78,767 contracts
  • 2025-08-22: Largest IV drop — 13.7% change
  • 2025-08-01: Highest IV Rank — 15.5%
  • 2025-08-01: Largest Expected Move — 4.5%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$447.81$435.72$456.75$435.72$456.04
Max Pain$437.90$430.00$445.00$440.00$445.00
ATM IV12.3%11.2%15.3%15.3%11.5%
Expected Move3.6%3.2%4.5%4.5%3.3%
HV 20d11.2%10.4%12.7%10.4%10.7%
HV 60d11.8%10.9%12.8%12.6%11.6%
IV Rank5.8%2.4%15.5%15.5%3.2%
IV Percentile25.5%6.0%73.0%73.0%11.5%
Term Structure0.0%-0.3%0.4%-0.3%-0.2%
VWIV13.2%11.5%15.6%15.6%12.6%
Skew 25d3.8%2.4%8.3%5.4%3.5%
Skew 10d8.0%6.2%12.3%12.3%8.1%
Call IV 25d10.5%4.9%12.8%12.8%10.2%
Put IV 25d14.3%12.5%18.2%18.2%13.6%
Bid-Ask Spread %5.963.4910.3810.383.64
Gamma HHI0.080.030.400.040.06
Net GEX168.0M-157.1M854.4M-157.1M226.2M
Net DEX-1.43B-2.82B221.3M221.3M-2.13B
Net VEX-24.0M-25.6M-23.2M-25.6M-24.1M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.030.601.681.131.16
Total Volume38,330.76216,44278,76753,57333,275
Total OI462,086.524428,872506,084465,937506,084

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2025-08-01$435.72$440.0015.3%4.5%10.4%15.5%15.6%5.4%-0.3%-157.1M221.3M-25.6M1.1310.3825,13528,438187,335278,602
2025-08-04$441.46$430.0013.3%3.9%10.8%9.1%13.8%4.3%0.0%-1.9M-689.3M-24.6M0.958.1211,81611,269156,884271,988
2025-08-05$441.34$430.0013.7%3.9%10.7%10.2%14.7%4.6%0.1%-26.2M-643.7M-24.8M0.827.229,0457,397158,221276,762
2025-08-06$442.22$430.0012.8%3.8%10.7%7.5%13.9%4.2%0.2%-11.0M-785.7M-24.1M1.278.008,20110,413159,769278,715
2025-08-07$439.44$432.0013.4%3.9%10.6%9.5%14.2%4.5%0.1%-121.7M-344.9M-24.4M1.097.4224,97027,225161,711282,362
2025-08-08$441.44$431.0012.1%3.6%10.5%5.1%12.6%3.2%0.1%21.0M-892.7M-23.7M1.096.2020,59422,468174,135284,236
2025-08-11$440.06$433.0012.7%3.7%10.5%7.3%14.2%3.6%0.2%-29.8M-577.9M-23.8M1.258.8411,76614,731157,845278,375
2025-08-12$444.37$435.0011.8%3.5%10.8%4.4%12.8%3.2%0.2%98.0M-1.23B-23.2M0.608.6927,64116,458162,006282,424
2025-08-13$449.29$435.0011.5%3.4%11.4%3.2%12.2%2.9%0.4%296.2M-2.07B-23.5M1.007.4823,45123,487174,809289,588
2025-08-14$449.32$437.0011.7%3.4%11.2%3.9%12.9%3.3%0.3%300.3M-1.98B-23.9M1.179.2822,36226,147180,680300,330
2025-08-15$450.00$440.0011.3%3.3%11.1%2.8%11.5%2.4%0.3%854.4M-2.15B-23.4M1.034.0627,68628,522186,620300,334
2025-08-18$449.33$440.0011.7%3.4%11.1%4.1%12.1%3.0%0.0%125.6M-1.53B-23.9M0.774.4212,4959,683171,761270,944
2025-08-19$448.88$440.0012.4%3.6%11.0%6.1%13.8%3.4%-0.0%98.4M-1.49B-24.0M1.084.1721,06722,710174,629275,706
2025-08-20$450.18$440.0012.3%3.5%10.5%6.0%12.8%3.4%-0.0%134.3M-1.56B-24.4M1.113.8716,77718,667178,841283,345
2025-08-21$447.72$440.0013.0%3.7%10.5%8.2%13.4%3.8%-0.0%13.2M-1.15B-24.7M1.044.4624,96626,081182,430290,407
2025-08-22$456.56$440.0011.2%3.2%12.5%2.4%11.8%2.8%0.1%762.0M-2.82B-23.3M1.093.4937,63441,133188,709295,765
2025-08-25$453.49$444.0011.6%3.3%12.7%3.8%12.1%3.2%-0.1%138.9M-1.80B-23.4M1.683.9910,81318,196175,015286,547
2025-08-26$453.80$445.0011.6%3.3%12.6%3.7%13.2%3.3%-0.2%155.7M-1.84B-24.1M0.724.1410,7907,774179,296293,037
2025-08-27$456.56$444.0011.4%3.3%12.4%3.1%15.3%3.2%-0.2%298.3M-2.34B-23.6M0.853.6513,12511,176185,176294,971
2025-08-28$456.75$445.0011.3%3.3%12.4%2.6%12.2%8.3%-0.2%354.0M-2.32B-23.9M0.733.6922,79016,572186,910300,513
2025-08-29$456.04$445.0011.5%3.3%10.7%3.2%12.6%3.5%-0.2%226.2M-2.13B-24.1M1.163.6415,42817,847198,299307,785