DIA Options History — April 2026

In April 2026, DIA traded between $464.38 and $494.47. ATM implied volatility averaged 17.1%, placing in the 27.2% IV rank vs the trailing year. The 30-day expected move averaged 4.9%. IV traded below realized volatility by 2.5% (HV 20d: 19.6%). Max pain ranged from $465.00 to $480.00. Net GEX was positive for 9 of 14 trading days. Term structure was in contango for 4 of 14 days. Put/call ratio averaged 1.83.

Notable Days

2026-04-17: Highest Volume — 114,363 contracts
2026-04-08: Largest IV drop — 22.3% change
2026-04-21: Highest IV Rank — 41.6%
2026-04-07: Largest Expected Move — 6.3%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$479.84	$464.38	$494.47	$466.39	$490.73
Max Pain	$473.21	$465.00	$480.00	$465.00	$480.00
ATM IV	17.1%	14.9%	22.0%	20.1%	17.3%
Expected Move	4.9%	4.3%	6.3%	5.8%	5.0%
HV 20d	19.6%	18.1%	21.0%	19.5%	18.1%
HV 60d	16.2%	15.4%	16.6%	15.7%	16.4%
IV Rank	27.2%	17.1%	41.6%	31.2%	41.6%
IV Percentile	77.2%	66.7%	93.3%	88.9%	83.7%
Term Structure	-0.1%	-0.9%	0.5%	-0.4%	-0.4%
VWIV	18.3%	15.7%	24.7%	20.2%	18.5%
Skew 25d	6.0%	4.1%	8.9%	7.5%	4.9%
Skew 10d	13.3%	9.2%	21.5%	16.4%	11.9%
Call IV 25d	14.7%	13.2%	18.4%	16.5%	15.6%
Put IV 25d	20.6%	17.8%	25.9%	24.1%	20.5%
Bid-Ask Spread %	17.42	7.64	32.17	7.64	30.89
Gamma HHI	0.04	0.02	0.12	0.02	0.04
Net GEX	43.0M	-138.4M	268.8M	-88.4M	65.8M
Net DEX	-323.7M	-2.54B	1.46B	1.15B	-1.06B
Net VEX	-31.0M	-32.7M	-29.3M	-32.5M	-31.7M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	1.83	0.61	3.28	1.45	0.96
Total Volume	49,966.5	31,898	114,363	54,681	58,343
Total OI	523,844.571	495,654	554,613	502,945	524,098

Daily Data (14 trading days)

Date	Price	Max Pain	ATM IV	Exp Move	HV 20d	IV Rank	VWIV	Skew 25d	Term Str	GEX	DEX	VEX	P/C	Spread %	Call Vol	Put Vol	Call OI	Put OI
2026-04-01	$466.39	$465.00	20.1%	5.8%	19.5%	31.2%	20.2%	7.5%	-0.4%	-88.4M	1.15B	-32.5M	1.45	7.64	22,339	32,342	183,565	319,380
2026-04-02	$464.38	$470.00	20.5%	5.9%	18.4%	32.5%	21.2%	7.4%	-0.1%	-138.4M	1.38B	-32.7M	2.59	11.64	13,599	35,255	195,013	326,997
2026-04-06	$466.56	$470.00	19.6%	5.6%	18.3%	29.6%	20.8%	8.9%	0.4%	-109.6M	1.26B	-31.8M	2.16	10.01	10,080	21,818	176,358	319,296
2026-04-07	$465.01	$470.00	22.0%	6.3%	18.2%	37.4%	24.7%	7.6%	-0.9%	-120.3M	1.46B	-32.4M	3.28	14.54	7,533	24,678	181,509	323,798
2026-04-08	$478.25	$470.00	17.1%	4.9%	21.0%	21.5%	18.4%	8.1%	-0.1%	74.5M	-365.4M	-30.9M	2.59	15.86	17,426	45,138	183,678	329,710
2026-04-09	$482.39	$470.00	16.0%	4.6%	21.0%	17.9%	17.2%	5.9%	0.5%	135.0M	-795.8M	-30.2M	1.17	23.55	19,584	22,815	183,775	342,549
2026-04-10	$478.89	$475.00	15.7%	4.5%	20.6%	17.1%	16.9%	5.6%	-0.2%	-70.3M	-286.8M	-30.7M	2.34	15.34	11,820	27,672	192,055	347,590
2026-04-13	$480.86	$475.00	15.6%	4.5%	20.4%	20.8%	16.4%	5.3%	-0.1%	30.8M	-345.0M	-30.0M	2.67	16.37	10,815	28,840	179,737	335,890
2026-04-14	$485.72	$475.00	15.3%	4.4%	20.5%	19.6%	16.2%	4.7%	-0.3%	110.5M	-956.7M	-30.3M	1.94	14.29	15,830	30,661	181,276	345,842
2026-04-15	$484.50	$475.00	15.2%	4.4%	20.6%	25.9%	16.2%	4.3%	0.1%	93.0M	-775.9M	-30.6M	1.08	12.72	22,050	23,901	185,035	354,393
2026-04-16	$485.98	$475.00	14.9%	4.3%	19.3%	27.1%	17.0%	4.6%	0.0%	238.1M	-1.11B	-30.5M	0.93	20.33	25,116	23,405	196,247	357,633
2026-04-17	$494.47	$475.00	14.9%	4.3%	19.9%	26.9%	15.7%	4.4%	0.2%	268.8M	-2.54B	-29.3M	0.61	32.17	71,051	43,312	193,061	361,552
2026-04-20	$493.63	$480.00	15.7%	4.5%	18.7%	32.1%	16.9%	4.1%	-0.4%	111.9M	-1.55B	-30.0M	1.91	18.47	11,733	22,375	176,391	337,396
2026-04-21	$490.73	$480.00	17.3%	5.0%	18.1%	41.6%	18.5%	4.9%	-0.4%	65.8M	-1.06B	-31.7M	0.96	30.89	29,691	28,652	180,608	343,490