DFIS · Dimensional US Core Equity 1 ETF

Track DFIS — free

$37.61 -0.26 (-0.69%)

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Options Chain

Underlying $37.61 · today Options Calculator

Positioning

Sep 18, 2026 · 21 days to expiry · 22 contracts · mixed snapshot sessions · Aug 28, 2026; 21 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 Jan 15 140d Apr 16 231d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	64.8%	0.94	—		—	—	—	—	0
Call · $30 In the money Snapshot session Unknown Last — Breakeven — Implied vol 64.8% Delta 0.94 ≈94% ITM Gamma 0.02 Theta -0.018 Vega 0.014 Open interest 0 Model this call Put · $30 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	56.8%	0.934	—		—	—	—	—	0
Call · $31 In the money Snapshot session Unknown Last — Breakeven — Implied vol 56.8% Delta 0.934 ≈93% ITM Gamma 0.025 Theta -0.017 Vega 0.014 Open interest 0 Model this call Put · $31 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	49%	0.926	—		—	—	—	—	0
Call · $32 In the money Snapshot session Unknown Last — Breakeven — Implied vol 49% Delta 0.926 ≈93% ITM Gamma 0.032 Theta -0.016 Vega 0.014 Open interest 0 Model this call Put · $32 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	41.4%	0.915	—		—	—	—	—	0
Call · $33 In the money Snapshot session Unknown Last — Breakeven — Implied vol 41.4% Delta 0.915 ≈92% ITM Gamma 0.041 Theta -0.015 Vega 0.015 Open interest 0 Model this call Put · $33 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	35.8%	0.892	—		—	—	—	—	0
Call · $34 In the money Snapshot session Unknown Last — Breakeven — Implied vol 35.8% Delta 0.892 ≈89% ITM Gamma 0.058 Theta -0.016 Vega 0.015 Open interest 0 Model this call Put · $34 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	29.3%	0.859	—		—	-0.3	69%	—	0
Call · $35 In the money Snapshot session Unknown Last — Breakeven — Implied vol 29.3% Delta 0.859 ≈86% ITM Gamma 0.085 Theta -0.015 Vega 0.023 Open interest 0 Model this call Put · $35 Snapshot session Unknown Last — Breakeven — Implied vol 69% Delta -0.3 ≈30% ITM Gamma 0.057 Theta -0.052 Vega 0.03 Open interest 0 Model this put
0	—	22.3%	0.807	—		—	-0.227	26.4%	—	0
Call · $36 In the money Snapshot session Unknown Last — Breakeven — Implied vol 22.3% Delta 0.807 ≈81% ITM Gamma 0.137 Theta -0.014 Vega 0.023 Open interest 0 Model this call Put · $36 Snapshot session Unknown Last — Breakeven — Implied vol 26.4% Delta -0.227 ≈23% ITM Gamma 0.129 Theta -0.017 Vega 0.03 Open interest 0 Model this put
0	—	32.5%	0.604	—		—	-0.378	26.2%	—	0
Call · $37 In the money Snapshot session Unknown Last — Breakeven — Implied vol 32.5% Delta 0.604 ≈60% ITM Gamma 0.132 Theta -0.028 Vega 0.035 Open interest 0 Model this call Put · $37 Snapshot session Unknown Last — Breakeven — Implied vol 26.2% Delta -0.378 ≈38% ITM Gamma 0.163 Theta -0.021 Vega 0.035 Open interest 0 Model this put
Underlying $37.61
2	2	20.1%	0.435	$0.05		—	-0.537	30%	—	0
Call · $38 Snapshot session Aug 28, 2026 Last $0.05 Breakeven $38.05 Implied vol 20.1% Delta 0.435 ≈43% ITM Gamma 0.218 Theta -0.018 Vega 0.036 Open interest 2 Model this call Put · $38 In the money Snapshot session Unknown Last — Breakeven — Implied vol 30% Delta -0.537 ≈54% ITM Gamma 0.149 Theta -0.025 Vega 0.036 Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $39 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $39 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	-0.878	21.8%	—	0
Call · $40 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $40 In the money Snapshot session Unknown Last — Breakeven — Implied vol 21.8% Delta -0.878 ≈88% ITM Gamma 0.111 Theta -0.008 Vega 0.016 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 · Aug 28, 2026; 21 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