DFAS · Dimensional US Core Equity 1 ETF

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$82.80 +0.03 (+0.04%) At close · Aug 27

Options Chain

Underlying $82.80 · at close Aug 27, 2026 Options Calculator

Positioning

Sep 18, 2026 · 21 days to expiry · 56 contracts · mixed snapshot sessions · Feb 13, 2026–Aug 13, 2026; 50 unknown

Put / call OI

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dated and unknown snapshot sessions

Open interest

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dated and unknown snapshot sessions

Volume

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dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 21d Oct 16 49d Dec 18 112d Mar 19 203d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	—	—	—		—	—	—	—	0
Call · $45 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $45 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $50 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $50 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
2	2	0.1%	0.999	$21.56		—	—	—	—	0
Call · $55 In the money Snapshot session Feb 13, 2026 Last $21.56 Breakeven $76.56 Implied vol 0.1% Delta 0.999 ≈100% ITM Gamma 0 Theta -0.003 Vega 0 Open interest 2 Model this call Put · $55 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	0.1%	0.999	—		—	-0.054	90.3%	—	0
Call · $60 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta 0.999 ≈100% ITM Gamma 0 Theta -0.004 Vega 0 Open interest 0 Model this call Put · $60 Snapshot session Unknown Last — Breakeven — Implied vol 90.3% Delta -0.054 ≈5% ITM Gamma 0.006 Theta -0.046 Vega 0.017 Open interest 0 Model this put
0	—	41.6%	0.996	—		—	-0.061	74.1%	—	0
Call · $64 In the money Snapshot session Unknown Last — Breakeven — Implied vol 41.6% Delta 0.996 ≈100% ITM Gamma 0.001 Theta -0.006 Vega 0.004 Open interest 0 Model this call Put · $64 Snapshot session Unknown Last — Breakeven — Implied vol 74.1% Delta -0.061 ≈6% ITM Gamma 0.008 Theta -0.042 Vega 0.031 Open interest 0 Model this put
0	—	38.1%	0.996	—		—	-0.068	72%	—	0
Call · $65 In the money Snapshot session Unknown Last — Breakeven — Implied vol 38.1% Delta 0.996 ≈100% ITM Gamma 0.001 Theta -0.006 Vega 0.001 Open interest 0 Model this call Put · $65 Snapshot session Unknown Last — Breakeven — Implied vol 72% Delta -0.068 ≈7% ITM Gamma 0.009 Theta -0.044 Vega 0.031 Open interest 0 Model this put
0	—	34.4%	0.997	—		—	-0.067	66.7%	—	0
Call · $66 In the money Snapshot session Unknown Last — Breakeven — Implied vol 34.4% Delta 0.997 ≈100% ITM Gamma 0.001 Theta -0.006 Vega 0.001 Open interest 0 Model this call Put · $66 Snapshot session Unknown Last — Breakeven — Implied vol 66.7% Delta -0.067 ≈7% ITM Gamma 0.01 Theta -0.04 Vega 0.031 Open interest 0 Model this put
1	2	30.8%	0.998	$7.41		—	-0.07	63.1%	—	0
Call · $67 In the money Snapshot session Apr 2, 2026 Last $7.41 Breakeven $74.41 Implied vol 30.8% Delta 0.998 ≈100% ITM Gamma 0.001 Theta -0.005 Vega 0.001 Open interest 1 Model this call Put · $67 Snapshot session Unknown Last — Breakeven — Implied vol 63.1% Delta -0.07 ≈7% ITM Gamma 0.011 Theta -0.039 Vega 0.031 Open interest 0 Model this put
0	—	25.9%	0.999	—		—	-0.074	59.6%	—	0
Call · $68 In the money Snapshot session Unknown Last — Breakeven — Implied vol 25.9% Delta 0.999 ≈100% ITM Gamma 0 Theta -0.005 Vega 0 Open interest 0 Model this call Put · $68 Snapshot session Unknown Last — Breakeven — Implied vol 59.6% Delta -0.074 ≈7% ITM Gamma 0.012 Theta -0.038 Vega 0.032 Open interest 0 Model this put
0	—	0.1%	0.999	—		—	-0.083	57.6%	—	0
Call · $69 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta 0.999 ≈100% ITM Gamma 0 Theta -0.005 Vega 0 Open interest 0 Model this call Put · $69 Snapshot session Unknown Last — Breakeven — Implied vol 57.6% Delta -0.083 ≈8% ITM Gamma 0.013 Theta -0.041 Vega 0.032 Open interest 0 Model this put
0	—	0.1%	0.999	—		—	-0.114	62.7%	—	0
Call · $70 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta 0.999 ≈100% ITM Gamma 0 Theta -0.005 Vega 0 Open interest 0 Model this call Put · $70 Snapshot session Unknown Last — Breakeven — Implied vol 62.7% Delta -0.114 ≈11% ITM Gamma 0.016 Theta -0.057 Vega 0.032 Open interest 0 Model this put
0	—	0.1%	0.999	—		—	-0.087	49.2%	—	0
Call · $71 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta 0.999 ≈100% ITM Gamma 0 Theta -0.005 Vega 0 Open interest 0 Model this call Put · $71 Snapshot session Unknown Last — Breakeven — Implied vol 49.2% Delta -0.087 ≈9% ITM Gamma 0.016 Theta -0.036 Vega 0.032 Open interest 0 Model this put
0	—	0.1%	0.999	—		—	-0.093	45.9%	—	0
Call · $72 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta 0.999 ≈100% ITM Gamma 0 Theta -0.005 Vega 0 Open interest 0 Model this call Put · $72 Snapshot session Unknown Last — Breakeven — Implied vol 45.9% Delta -0.093 ≈9% ITM Gamma 0.018 Theta -0.035 Vega 0.032 Open interest 0 Model this put
0	—	0.1%	0.999	—		—	-0.099	42.6%	—	0
Call · $73 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta 0.999 ≈100% ITM Gamma 0 Theta -0.005 Vega 0 Open interest 0 Model this call Put · $73 Snapshot session Unknown Last — Breakeven — Implied vol 42.6% Delta -0.099 ≈10% ITM Gamma 0.021 Theta -0.034 Vega 0.033 Open interest 0 Model this put
0	—	0.1%	0.999	—		$5.92	-0.159	49.9%	22	11
Call · $74 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta 0.999 ≈100% ITM Gamma 0 Theta -0.005 Vega 0 Open interest 0 Model this call Put · $74 Snapshot session Apr 2, 2026 Last $5.92 Breakeven $68.08 Implied vol 49.9% Delta -0.159 ≈16% ITM Gamma 0.024 Theta -0.056 Vega 0.05 Open interest 11 Model this put
0	—	0.1%	0.999	—		—	-0.115	36.2%	—	0
Call · $75 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta 0.999 ≈100% ITM Gamma 0 Theta -0.005 Vega 0 Open interest 0 Model this call Put · $75 Snapshot session Unknown Last — Breakeven — Implied vol 36.2% Delta -0.115 ≈11% ITM Gamma 0.027 Theta -0.033 Vega 0.033 Open interest 0 Model this put
0	—	0.1%	0.999	—		—	-0.14	34.7%	—	0
Call · $76 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta 0.999 ≈100% ITM Gamma 0 Theta -0.005 Vega 0 Open interest 0 Model this call Put · $76 Snapshot session Unknown Last — Breakeven — Implied vol 34.7% Delta -0.14 ≈14% ITM Gamma 0.032 Theta -0.036 Vega 0.05 Open interest 0 Model this put
0	—	16%	0.974	—		—	-0.146	30%	—	0
Call · $77 In the money Snapshot session Unknown Last — Breakeven — Implied vol 16% Delta 0.974 ≈97% ITM Gamma 0.018 Theta -0.01 Vega 0.009 Open interest 0 Model this call Put · $77 Snapshot session Unknown Last — Breakeven — Implied vol 30% Delta -0.146 ≈15% ITM Gamma 0.038 Theta -0.031 Vega 0.05 Open interest 0 Model this put
0	—	16.2%	0.944	—		—	-0.153	25.4%	—	0
Call · $78 In the money Snapshot session Unknown Last — Breakeven — Implied vol 16.2% Delta 0.944 ≈94% ITM Gamma 0.035 Theta -0.014 Vega 0.019 Open interest 0 Model this call Put · $78 Snapshot session Unknown Last — Breakeven — Implied vol 25.4% Delta -0.153 ≈15% ITM Gamma 0.047 Theta -0.027 Vega 0.05 Open interest 0 Model this put
0	—	16.5%	0.891	—		$1.15	-0.169	21.3%	1	1
Call · $79 In the money Snapshot session Unknown Last — Breakeven — Implied vol 16.5% Delta 0.891 ≈89% ITM Gamma 0.057 Theta -0.019 Vega 0.033 Open interest 0 Model this call Put · $79 Snapshot session Jul 30, 2026 Last $1.15 Breakeven $77.85 Implied vol 21.3% Delta -0.169 ≈17% ITM Gamma 0.059 Theta -0.024 Vega 0.051 Open interest 1 Model this put
2	1	15.3%	0.836	$5.00		—	-0.197	17.8%	—	0
Call · $80 In the money Snapshot session Aug 13, 2026 Last $5.00 Breakeven $85.00 Implied vol 15.3% Delta 0.836 ≈84% ITM Gamma 0.08 Theta -0.023 Vega 0.05 Open interest 2 Model this call Put · $80 Snapshot session Unknown Last — Breakeven — Implied vol 17.8% Delta -0.197 ≈20% ITM Gamma 0.079 Theta -0.022 Vega 0.051 Open interest 0 Model this put
0	—	16.1%	0.732	—		$1.43	-0.274	16.5%	1	1
Call · $81 In the money Snapshot session Unknown Last — Breakeven — Implied vol 16.1% Delta 0.732 ≈73% ITM Gamma 0.102 Theta -0.029 Vega 0.067 Open interest 0 Model this call Put · $81 Snapshot session Aug 3, 2026 Last $1.43 Breakeven $79.57 Implied vol 16.5% Delta -0.274 ≈27% ITM Gamma 0.102 Theta -0.024 Vega 0.067 Open interest 1 Model this put
0	—	18.5%	0.607	—		—	-0.397	18.8%	—	0
Call · $82 In the money Snapshot session Unknown Last — Breakeven — Implied vol 18.5% Delta 0.607 ≈61% ITM Gamma 0.104 Theta -0.037 Vega 0.078 Open interest 0 Model this call Put · $82 Snapshot session Unknown Last — Breakeven — Implied vol 18.8% Delta -0.397 ≈40% ITM Gamma 0.104 Theta -0.032 Vega 0.079 Open interest 0 Model this put
Underlying $82.80
0	—	17.2%	0.5	—		—	-0.502	18.7%	—	0
Call · $83 Snapshot session Unknown Last — Breakeven — Implied vol 17.2% Delta 0.5 ≈50% ITM Gamma 0.117 Theta -0.036 Vega 0.08 Open interest 0 Model this call Put · $83 In the money Snapshot session Unknown Last — Breakeven — Implied vol 18.7% Delta -0.502 ≈50% ITM Gamma 0.109 Theta -0.033 Vega 0.08 Open interest 0 Model this put
0	—	17%	0.384	—		—	-0.608	18.8%	—	0
Call · $84 Snapshot session Unknown Last — Breakeven — Implied vol 17% Delta 0.384 ≈38% ITM Gamma 0.114 Theta -0.033 Vega 0.081 Open interest 0 Model this call Put · $84 In the money Snapshot session Unknown Last — Breakeven — Implied vol 18.8% Delta -0.608 ≈61% ITM Gamma 0.105 Theta -0.031 Vega 0.08 Open interest 0 Model this put
0	—	17.1%	0.283	—		—	-0.694	19.8%	—	0
Call · $85 Snapshot session Unknown Last — Breakeven — Implied vol 17.1% Delta 0.283 ≈28% ITM Gamma 0.099 Theta -0.029 Vega 0.072 Open interest 0 Model this call Put · $85 In the money Snapshot session Unknown Last — Breakeven — Implied vol 19.8% Delta -0.694 ≈69% ITM Gamma 0.092 Theta -0.029 Vega 0.071 Open interest 0 Model this put
0	—	31.7%	0.149	—		—	-0.911	25.7%	—	0
Call · $90 Snapshot session Unknown Last — Breakeven — Implied vol 31.7% Delta 0.149 ≈15% ITM Gamma 0.037 Theta -0.036 Vega 0.057 Open interest 0 Model this call Put · $90 In the money Snapshot session Unknown Last — Breakeven — Implied vol 25.7% Delta -0.911 ≈91% ITM Gamma 0.036 Theta -0.016 Vega 0.035 Open interest 0 Model this put
0	—	—	—	—		—	-0.935	37.8%	—	0
Call · $95 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $95 In the money Snapshot session Unknown Last — Breakeven — Implied vol 37.8% Delta -0.935 ≈94% ITM Gamma 0.019 Theta -0.019 Vega 0.021 Open interest 0 Model this put

About this data

Each contract's last price, volume, greeks, implied volatility and open interest belongs to the snapshot session shown in its details; unknown means the provider omitted the timestamp. This chain has mixed snapshot sessions · Feb 13, 2026–Aug 13, 2026; 50 unknown. Cross-contract positioning totals are shown only when every returned row has the same known session. Bid and ask are not included on this plan.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown.

Key facts CIK 1816125 CUSIP 25434V625 13F (30d) 129 filings 126 filers Visit website