BUCK · Simplify Treasury Option Income ETF ETF

Alerts for BUCK

$23.25 -0.07 (-0.30%) At close · Sep 4

Options Chain

Underlying $23.25 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 12 days to expiry · 22 contracts · mixed daily-bar sessions · Jul 20, 2026–Jul 28, 2026; 20 unknown

Put / call OI

—

No open interest

Open interest

as of Sep 3, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$23.00

$0.25 below spot

ATM implied vol

25%

market's expected move

Open interest by strike

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 12d Oct 16 40d Jan 15 131d Apr 16 222d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	70.1%	0.978	$3.80	$6.80	—		—	$0.00	$1.40	—	—	—	—
Call · $18 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.796 UTC Last — Breakeven — Implied vol 70.1% Delta 0.978 ≈98% ITM Gamma 0.017 Theta -0.008 Vega 0.002 Open interest — OI effective date — Model this call Put · $18 Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.393 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	64.5%	0.958	$2.85	$5.80	—		—	$0.00	$1.40	—	—	—	—
Call · $19 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.569 UTC Last — Breakeven — Implied vol 64.5% Delta 0.958 ≈96% ITM Gamma 0.032 Theta -0.012 Vega 0.004 Open interest — OI effective date — Model this call Put · $19 Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.203 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	50.6%	0.949	$1.85	$4.80	—		—	$0.00	$1.40	—	—	—	—
Call · $20 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.304 UTC Last — Breakeven — Implied vol 50.6% Delta 0.949 ≈95% ITM Gamma 0.047 Theta -0.011 Vega 0.005 Open interest — OI effective date — Model this call Put · $20 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.993 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	37%	0.935	$0.85	$3.80	—		—	$0.00	$1.40	—	—	—	—
Call · $21 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.035 UTC Last — Breakeven — Implied vol 37% Delta 0.935 ≈93% ITM Gamma 0.079 Theta -0.01 Vega 0.006 Open interest — OI effective date — Model this call Put · $21 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.871 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.80	—		$0.25	$0.00	$1.40	—	—	1	1
Call · $22 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.800 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $22 Daily-bar session Jul 20, 2026 Quote as of 2026-09-04 19:59:32.739 UTC Last $0.25 Breakeven $21.75 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this put
—	—	—	—	$0.00	$1.80	—		$0.25	$0.00	$1.40	—	—	1	4
Call · $23 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.592 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $23 Daily-bar session Jul 28, 2026 Quote as of 2026-09-04 19:59:32.586 UTC Last $0.25 Breakeven $22.75 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 OI effective date Sep 3, 2026 Model this put
Underlying $23.25
—	—	—	—	$0.00	$1.40	—		—	$0.00	$2.25	—	—	—	—
Call · $24 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.668 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $24 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.691 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.40	—		—	$0.30	$3.20	-0.932	25%	—	—
Call · $25 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.788 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $25 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.898 UTC Last — Breakeven — Implied vol 25% Delta -0.932 ≈93% ITM Gamma 0.12 Theta -0.003 Vega 0.006 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.40	—		—	$1.30	$4.20	-0.947	35.5%	—	—
Call · $26 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.936 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $26 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.169 UTC Last — Breakeven — Implied vol 35.5% Delta -0.947 ≈95% ITM Gamma 0.069 Theta -0.004 Vega 0.005 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.40	—		—	$2.30	$5.20	-0.955	45.1%	—	—
Call · $27 Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.101 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $27 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.403 UTC Last — Breakeven — Implied vol 45.1% Delta -0.955 ≈96% ITM Gamma 0.048 Theta -0.005 Vega 0.004 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.40	—		—	$3.20	$6.20	—	—	—	—
Call · $28 Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.299 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $28 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.678 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put

About this data

Each contract's last price, day range and volume belong to the daily-bar session shown in its details; unknown means the source omitted that timestamp. Open interest has its own effective date shown separately; implied volatility and greeks are model values computed when fetched. This chain has mixed daily-bar sessions · Jul 20, 2026–Jul 28, 2026; 20 unknown. Positioning totals are shown only when every returned open-interest value has the same known effective date. Bid and ask are real-time consolidated OPRA readings.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.