TFI · State Street(R) SPDR Nuveen ICE Municipal Bond ETF ETF

Alerts for TFI

$44.22 +0.01 (+0.02%) At close · Sep 4

Options Chain

Underlying $44.22 · at close Sep 4, 2026 Options Calculator

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Positioning

Sep 18, 2026 · 11 days to expiry · 34 contracts · mixed daily-bar sessions · Aug 7, 2026–Sep 2, 2026; 31 unknown

Put / call OI

0.00

Call-heavy positioning

Open interest

as of Sep 3, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$44.00

$0.22 below spot

ATM implied vol

13.2%

market's expected move

Open interest by strike

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 11d Oct 16 39d Dec 18 102d Mar 19 193d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	43.9%	0.975	$4.70	$7.90	—		—	$0.00	$1.50	—	—	—	—
Call · $38 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.539 UTC Last — Breakeven — Implied vol 43.9% Delta 0.975 ≈97% ITM Gamma 0.017 Theta -0.012 Vega 0.005 Open interest — OI effective date — Model this call Put · $38 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.277 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	37.3%	0.972	$3.70	$6.90	—		—	$0.00	$1.50	—	—	—	—
Call · $39 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.488 UTC Last — Breakeven — Implied vol 37.3% Delta 0.972 ≈97% ITM Gamma 0.022 Theta -0.012 Vega 0.005 Open interest — OI effective date — Model this call Put · $39 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.169 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	39.6%	0.927	$2.75	$6.00	—		—	$0.00	$1.50	—	—	—	—
Call · $40 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.432 UTC Last — Breakeven — Implied vol 39.6% Delta 0.927 ≈93% ITM Gamma 0.044 Theta -0.022 Vega 0.011 Open interest — OI effective date — Model this call Put · $40 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.218 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	31.9%	0.913	$1.75	$5.00	—		—	$0.00	$1.50	—	—	—	—
Call · $41 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.324 UTC Last — Breakeven — Implied vol 31.9% Delta 0.913 ≈91% ITM Gamma 0.062 Theta -0.021 Vega 0.013 Open interest — OI effective date — Model this call Put · $41 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.198 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	24.1%	0.89	$0.75	$4.00	—		—	$0.00	$1.50	—	—	—	—
Call · $42 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.238 UTC Last — Breakeven — Implied vol 24.1% Delta 0.89 ≈89% ITM Gamma 0.097 Theta -0.019 Vega 0.015 Open interest — OI effective date — Model this call Put · $42 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.158 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.90	—		—	$0.00	$1.50	—	—	—	—
Call · $43 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.162 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $43 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.147 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
1	1	—	—	$0.00	$1.85	$0.15		—	$0.00	$1.50	—	—	—	—
Call · $44 In the money Daily-bar session Sep 2, 2026 Quote as of 2026-09-04 19:55:01.144 UTC Last $0.15 Breakeven $44.15 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this call Put · $44 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.151 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
Underlying $44.22
1	1	—	—	$0.00	$1.50	$0.20		—	$0.00	$2.30	—	—	—	—
Call · $45 Daily-bar session Aug 7, 2026 Quote as of 2026-09-04 19:55:01.155 UTC Last $0.20 Breakeven $45.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this call Put · $45 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.173 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
50	50	—	—	$0.00	$1.50	$0.05		—	$0.20	$3.30	-0.944	13.2%	—	—
Call · $46 Daily-bar session Aug 25, 2026 Quote as of 2026-09-04 19:55:01.176 UTC Last $0.05 Breakeven $46.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 50 OI effective date Sep 3, 2026 Model this call Put · $46 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.210 UTC Last — Breakeven — Implied vol 13.2% Delta -0.944 ≈94% ITM Gamma 0.107 Theta -0.001 Vega 0.009 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.50	—		—	$1.20	$4.30	-0.957	19%	—	—
Call · $47 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.190 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $47 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.267 UTC Last — Breakeven — Implied vol 19% Delta -0.957 ≈96% ITM Gamma 0.06 Theta -0.001 Vega 0.007 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.50	—		—	$2.20	$5.30	-0.964	24.5%	—	—
Call · $48 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.165 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $48 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.373 UTC Last — Breakeven — Implied vol 24.5% Delta -0.964 ≈96% ITM Gamma 0.04 Theta -0.002 Vega 0.006 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.50	—		—	$3.20	$6.30	-0.968	29.7%	—	—
Call · $49 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.227 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $49 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.464 UTC Last — Breakeven — Implied vol 29.7% Delta -0.968 ≈97% ITM Gamma 0.03 Theta -0.002 Vega 0.006 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.50	—		—	$4.20	$7.30	-0.971	34.7%	—	—
Call · $50 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.255 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $50 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.525 UTC Last — Breakeven — Implied vol 34.7% Delta -0.971 ≈97% ITM Gamma 0.024 Theta -0.003 Vega 0.005 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.50	—		—	$5.20	$8.30	-0.974	39.6%	—	—
Call · $51 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.294 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $51 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.566 UTC Last — Breakeven — Implied vol 39.6% Delta -0.974 ≈97% ITM Gamma 0.019 Theta -0.003 Vega 0.005 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.50	—		—	$6.20	$9.30	-0.975	44.3%	—	—
Call · $52 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.342 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $52 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.580 UTC Last — Breakeven — Implied vol 44.3% Delta -0.975 ≈98% ITM Gamma 0.016 Theta -0.004 Vega 0.005 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.50	—		—	$7.20	$10.30	-0.976	48.9%	—	—
Call · $53 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.393 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $53 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.602 UTC Last — Breakeven — Implied vol 48.9% Delta -0.976 ≈98% ITM Gamma 0.014 Theta -0.004 Vega 0.005 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.50	—		—	$8.20	$11.30	-0.978	53.4%	—	—
Call · $54 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.427 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $54 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.623 UTC Last — Breakeven — Implied vol 53.4% Delta -0.978 ≈98% ITM Gamma 0.013 Theta -0.004 Vega 0.004 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 · Aug 7, 2026–Sep 2, 2026; 31 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.