DFUS · Dimensional US Core Equity 1 ETF

Track DFUS — free

$83.94 -0.27 (-0.32%)

Rebalance outlook locked

Options Chain

Underlying $83.94 · today Options Calculator

Positioning

Sep 18, 2026 · 21 days to expiry · 54 contracts · mixed snapshot sessions · Jan 21, 2026–Aug 28, 2026; 45 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	—	138.2%	0.981	—		—	—	—	—	0
Call · $45 In the money Snapshot session Unknown Last — Breakeven — Implied vol 138.2% Delta 0.981 ≈98% ITM Gamma 0.002 Theta -0.033 Vega 0.007 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	—	124%	0.972	—		—	—	—	—	0
Call · $50 In the money Snapshot session Unknown Last — Breakeven — Implied vol 124% Delta 0.972 ≈97% ITM Gamma 0.003 Theta -0.041 Vega 0.016 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
0	—	97.1%	0.975	—		—	—	—	—	0
Call · $55 In the money Snapshot session Unknown Last — Breakeven — Implied vol 97.1% Delta 0.975 ≈98% ITM Gamma 0.003 Theta -0.03 Vega 0.016 Open interest 0 Model this call Put · $55 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	2	78.5%	0.972	$14.30		—	—	—	—	0
Call · $60 In the money Snapshot session Mar 16, 2026 Last $14.30 Breakeven $74.30 Implied vol 78.5% Delta 0.972 ≈97% ITM Gamma 0.004 Theta -0.028 Vega 0.017 Open interest 0 Model this call Put · $60 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	67%	0.954	—		—	-0.061	74.4%	—	0
Call · $65 In the money Snapshot session Unknown Last — Breakeven — Implied vol 67% Delta 0.954 ≈95% ITM Gamma 0.007 Theta -0.035 Vega 0.018 Open interest 0 Model this call Put · $65 Snapshot session Unknown Last — Breakeven — Implied vol 74.4% Delta -0.061 ≈6% ITM Gamma 0.008 Theta -0.043 Vega 0.031 Open interest 0 Model this put
0	—	63.7%	0.952	—		$2.00	-0.063	70.7%	14	13
Call · $66 In the money Snapshot session Unknown Last — Breakeven — Implied vol 63.7% Delta 0.952 ≈95% ITM Gamma 0.008 Theta -0.035 Vega 0.018 Open interest 0 Model this call Put · $66 Snapshot session Jan 21, 2026 Last $2.00 Breakeven $64.00 Implied vol 70.7% Delta -0.063 ≈6% ITM Gamma 0.009 Theta -0.042 Vega 0.031 Open interest 13 Model this put
0	—	60.5%	0.95	—		—	-0.066	67%	—	0
Call · $67 In the money Snapshot session Unknown Last — Breakeven — Implied vol 60.5% Delta 0.95 ≈95% ITM Gamma 0.008 Theta -0.034 Vega 0.018 Open interest 0 Model this call Put · $67 Snapshot session Unknown Last — Breakeven — Implied vol 67% Delta -0.066 ≈7% ITM Gamma 0.01 Theta -0.041 Vega 0.031 Open interest 0 Model this put
0	—	57.3%	0.948	—		$0.50	-0.07	63.4%	10	10
Call · $68 In the money Snapshot session Unknown Last — Breakeven — Implied vol 57.3% Delta 0.948 ≈95% ITM Gamma 0.009 Theta -0.034 Vega 0.018 Open interest 0 Model this call Put · $68 Snapshot session Jul 8, 2026 Last $0.50 Breakeven $67.50 Implied vol 63.4% Delta -0.07 ≈7% ITM Gamma 0.011 Theta -0.04 Vega 0.031 Open interest 10 Model this put
0	—	54.2%	0.945	—		—	-0.078	61.5%	—	0
Call · $69 In the money Snapshot session Unknown Last — Breakeven — Implied vol 54.2% Delta 0.945 ≈95% ITM Gamma 0.01 Theta -0.034 Vega 0.018 Open interest 0 Model this call Put · $69 Snapshot session Unknown Last — Breakeven — Implied vol 61.5% Delta -0.078 ≈8% ITM Gamma 0.012 Theta -0.043 Vega 0.032 Open interest 0 Model this put
0	—	51.1%	0.943	—		—	-0.077	56.4%	—	0
Call · $70 In the money Snapshot session Unknown Last — Breakeven — Implied vol 51.1% Delta 0.943 ≈94% ITM Gamma 0.011 Theta -0.033 Vega 0.018 Open interest 0 Model this call Put · $70 Snapshot session Unknown Last — Breakeven — Implied vol 56.4% Delta -0.077 ≈8% ITM Gamma 0.013 Theta -0.039 Vega 0.032 Open interest 0 Model this put
0	—	47.9%	0.94	—		$2.15	-0.118	64.3%	10	10
Call · $71 In the money Snapshot session Unknown Last — Breakeven — Implied vol 47.9% Delta 0.94 ≈94% ITM Gamma 0.013 Theta -0.033 Vega 0.032 Open interest 0 Model this call Put · $71 Snapshot session Feb 3, 2026 Last $2.15 Breakeven $68.85 Implied vol 64.3% Delta -0.118 ≈12% ITM Gamma 0.016 Theta -0.061 Vega 0.048 Open interest 10 Model this put
6	22	47.6%	0.922	$5.30		—	-0.118	58.7%	—	0
Call · $72 In the money Snapshot session Mar 17, 2026 Last $5.30 Breakeven $77.30 Implied vol 47.6% Delta 0.922 ≈92% ITM Gamma 0.015 Theta -0.038 Vega 0.032 Open interest 6 Model this call Put · $72 Snapshot session Unknown Last — Breakeven — Implied vol 58.7% Delta -0.118 ≈12% ITM Gamma 0.017 Theta -0.056 Vega 0.049 Open interest 0 Model this put
0	—	44.2%	0.917	—		—	-0.129	55.7%	—	0
Call · $73 In the money Snapshot session Unknown Last — Breakeven — Implied vol 44.2% Delta 0.917 ≈92% ITM Gamma 0.017 Theta -0.037 Vega 0.032 Open interest 0 Model this call Put · $73 Snapshot session Unknown Last — Breakeven — Implied vol 55.7% Delta -0.129 ≈13% ITM Gamma 0.019 Theta -0.056 Vega 0.049 Open interest 0 Model this put
0	—	43.9%	0.897	—		—	-0.098	43%	—	0
Call · $74 In the money Snapshot session Unknown Last — Breakeven — Implied vol 43.9% Delta 0.897 ≈90% ITM Gamma 0.02 Theta -0.043 Vega 0.033 Open interest 0 Model this call Put · $74 Snapshot session Unknown Last — Breakeven — Implied vol 43% Delta -0.098 ≈10% ITM Gamma 0.02 Theta -0.035 Vega 0.033 Open interest 0 Model this put
0	—	36%	0.913	—		$2.95	-0.116	42%	1	1
Call · $75 In the money Snapshot session Unknown Last — Breakeven — Implied vol 36% Delta 0.913 ≈91% ITM Gamma 0.022 Theta -0.032 Vega 0.033 Open interest 0 Model this call Put · $75 Snapshot session Feb 20, 2026 Last $2.95 Breakeven $72.05 Implied vol 42% Delta -0.116 ≈12% ITM Gamma 0.024 Theta -0.039 Vega 0.033 Open interest 1 Model this put
14	14	32.8%	0.907	$3.80		—	-0.143	41.5%	—	0
Call · $76 In the money Snapshot session Feb 3, 2026 Last $3.80 Breakeven $79.80 Implied vol 32.8% Delta 0.907 ≈91% ITM Gamma 0.025 Theta -0.031 Vega 0.033 Open interest 14 Model this call Put · $76 Snapshot session Unknown Last — Breakeven — Implied vol 41.5% Delta -0.143 ≈14% ITM Gamma 0.027 Theta -0.044 Vega 0.05 Open interest 0 Model this put
0	—	33.7%	0.872	—		—	-0.124	33.2%	—	0
Call · $77 In the money Snapshot session Unknown Last — Breakeven — Implied vol 33.7% Delta 0.872 ≈87% ITM Gamma 0.031 Theta -0.039 Vega 0.05 Open interest 0 Model this call Put · $77 Snapshot session Unknown Last — Breakeven — Implied vol 33.2% Delta -0.124 ≈12% ITM Gamma 0.031 Theta -0.032 Vega 0.05 Open interest 0 Model this put
0	—	29%	0.869	—		—	-0.152	31.5%	—	0
Call · $78 In the money Snapshot session Unknown Last — Breakeven — Implied vol 29% Delta 0.869 ≈87% ITM Gamma 0.037 Theta -0.035 Vega 0.05 Open interest 0 Model this call Put · $78 Snapshot session Unknown Last — Breakeven — Implied vol 31.5% Delta -0.152 ≈15% ITM Gamma 0.037 Theta -0.035 Vega 0.05 Open interest 0 Model this put
0	—	24.3%	0.865	—		—	-0.146	25.3%	—	0
Call · $79 In the money Snapshot session Unknown Last — Breakeven — Implied vol 24.3% Delta 0.865 ≈86% ITM Gamma 0.045 Theta -0.031 Vega 0.05 Open interest 0 Model this call Put · $79 Snapshot session Unknown Last — Breakeven — Implied vol 25.3% Delta -0.146 ≈15% ITM Gamma 0.045 Theta -0.027 Vega 0.05 Open interest 0 Model this put
0	—	22.6%	0.826	—		—	-0.18	23.2%	—	0
Call · $80 In the money Snapshot session Unknown Last — Breakeven — Implied vol 22.6% Delta 0.826 ≈83% ITM Gamma 0.057 Theta -0.033 Vega 0.051 Open interest 0 Model this call Put · $80 Snapshot session Unknown Last — Breakeven — Implied vol 23.2% Delta -0.18 ≈18% ITM Gamma 0.057 Theta -0.028 Vega 0.051 Open interest 0 Model this put
0	—	21.6%	0.772	—		—	-0.198	18.7%	—	0
Call · $81 In the money Snapshot session Unknown Last — Breakeven — Implied vol 21.6% Delta 0.772 ≈77% ITM Gamma 0.07 Theta -0.036 Vega 0.067 Open interest 0 Model this call Put · $81 Snapshot session Unknown Last — Breakeven — Implied vol 18.7% Delta -0.198 ≈20% ITM Gamma 0.075 Theta -0.024 Vega 0.051 Open interest 0 Model this put
0	—	18%	0.724	—		—	-0.248	15.5%	—	0
Call · $82 In the money Snapshot session Unknown Last — Breakeven — Implied vol 18% Delta 0.724 ≈72% ITM Gamma 0.093 Theta -0.033 Vega 0.067 Open interest 0 Model this call Put · $82 Snapshot session Unknown Last — Breakeven — Implied vol 15.5% Delta -0.248 ≈25% ITM Gamma 0.103 Theta -0.022 Vega 0.067 Open interest 0 Model this put
0	—	13.7%	0.658	—		—	-0.308	10.6%	—	0
Call · $83 In the money Snapshot session Unknown Last — Breakeven — Implied vol 13.7% Delta 0.658 ≈66% ITM Gamma 0.136 Theta -0.029 Vega 0.078 Open interest 0 Model this call Put · $83 Snapshot session Unknown Last — Breakeven — Implied vol 10.6% Delta -0.308 ≈31% ITM Gamma 0.169 Theta -0.016 Vega 0.068 Open interest 0 Model this put
Underlying $83.94
0	—	16.2%	0.515	—		—	-0.491	12.1%	—	0
Call · $84 Snapshot session Unknown Last — Breakeven — Implied vol 16.2% Delta 0.515 ≈52% ITM Gamma 0.125 Theta -0.035 Vega 0.08 Open interest 0 Model this call Put · $84 In the money Snapshot session Unknown Last — Breakeven — Implied vol 12.1% Delta -0.491 ≈49% ITM Gamma 0.17 Theta -0.021 Vega 0.08 Open interest 0 Model this put
1	1	14.1%	0.376	$0.65		$1.56	-0.673	10.9%	1	0
Call · $85 Snapshot session Aug 28, 2026 Last $0.65 Breakeven $85.65 Implied vol 14.1% Delta 0.376 ≈38% ITM Gamma 0.137 Theta -0.029 Vega 0.071 Open interest 1 Model this call Put · $85 In the money Snapshot session Aug 26, 2026 Last $1.56 Breakeven $83.44 Implied vol 10.9% Delta -0.673 ≈67% ITM Gamma 0.176 Theta -0.016 Vega 0.071 Open interest 0 Model this put
0	—	20.7%	0.333	—		—	—	—	—	0
Call · $86 Snapshot session Unknown Last — Breakeven — Implied vol 20.7% Delta 0.333 ≈33% ITM Gamma 0.088 Theta -0.038 Vega 0.072 Open interest 0 Model this call Put · $86 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $90 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $90 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — 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 · Jan 21, 2026–Aug 28, 2026; 45 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