TBIL · F/m US Treasury 3 Month Bill Fund ETF

Alerts for TBIL

$49.91 +0.02 (+0.04%) At close · Sep 4

Options Chain

Underlying $49.91 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 12 days to expiry · 42 contracts · mixed daily-bar sessions · May 7, 2026–Sep 4, 2026; 31 unknown

Put / call OI

1.77

Put-heavy positioning

Open interest

as of Sep 3, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$51.00

$1.09 above spot

ATM implied vol

37.5%

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 Dec 18 103d Mar 19 194d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	4	60.2%	0.978	$7.50	$12.50	$9.95		$0.10	$0.00	$0.05	—	—	5	5
Call · $40 In the money Daily-bar session Aug 6, 2026 Quote as of 2026-09-04 19:49:58.853 UTC Last $9.95 Breakeven $49.95 Implied vol 60.2% Delta 0.978 ≈98% ITM Gamma 0.009 Theta -0.015 Vega 0.005 Open interest — OI effective date — Model this call Put · $40 Daily-bar session Aug 11, 2026 Quote as of 2026-09-04 13:30:04.702 UTC Last $0.10 Breakeven $39.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 OI effective date Sep 3, 2026 Model this put
—	—	54.2%	0.976	$6.50	$11.50	—		$0.10	$0.00	$0.05	—	—	1	1
Call · $41 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:49:58.853 UTC Last — Breakeven — Implied vol 54.2% Delta 0.976 ≈98% ITM Gamma 0.011 Theta -0.015 Vega 0.005 Open interest — OI effective date — Model this call Put · $41 Daily-bar session Aug 11, 2026 Quote as of 2026-09-04 13:30:04.702 UTC Last $0.10 Breakeven $40.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this put
—	—	48.3%	0.975	$5.50	$10.50	—		—	$0.00	$0.05	—	—	—	—
Call · $42 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:49:58.853 UTC Last — Breakeven — Implied vol 48.3% Delta 0.975 ≈97% ITM Gamma 0.013 Theta -0.015 Vega 0.006 Open interest — OI effective date — Model this call Put · $42 Daily-bar session Unknown Quote as of 2026-09-04 13:30:04.702 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	42.5%	0.972	$4.50	$9.50	—		—	$0.00	$0.05	—	—	—	—
Call · $43 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:49:58.853 UTC Last — Breakeven — Implied vol 42.5% Delta 0.972 ≈97% ITM Gamma 0.016 Theta -0.014 Vega 0.006 Open interest — OI effective date — Model this call Put · $43 Daily-bar session Unknown Quote as of 2026-09-04 13:30:04.702 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	36.8%	0.969	$3.50	$8.50	—		—	$0.00	$0.05	—	—	—	—
Call · $44 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:49:58.853 UTC Last — Breakeven — Implied vol 36.8% Delta 0.969 ≈97% ITM Gamma 0.02 Theta -0.014 Vega 0.007 Open interest — OI effective date — Model this call Put · $44 Daily-bar session Unknown Quote as of 2026-09-04 13:30:04.702 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	2	26.7%	0.982	$2.55	$7.40	$4.95		—	$0.00	$0.05	—	—	—	—
Call · $45 In the money Daily-bar session Aug 28, 2026 Quote as of 2026-09-04 19:55:05.502 UTC Last $4.95 Breakeven $49.95 Implied vol 26.7% Delta 0.982 ≈98% ITM Gamma 0.017 Theta -0.009 Vega 0.004 Open interest — OI effective date — Model this call Put · $45 Daily-bar session Unknown Quote as of 2026-09-04 13:30:04.702 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	21.6%	0.98	$1.55	$6.40	—		—	$0.00	$0.05	—	—	—	—
Call · $46 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.502 UTC Last — Breakeven — Implied vol 21.6% Delta 0.98 ≈98% ITM Gamma 0.024 Theta -0.008 Vega 0.005 Open interest — OI effective date — Model this call Put · $46 Daily-bar session Unknown Quote as of 2026-09-04 13:30:04.702 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	19.8%	0.951	$0.60	$5.40	—		—	$0.00	$0.05	—	—	—	—
Call · $47 In the money Daily-bar session Unknown Quote as of 2026-09-04 13:47:01.308 UTC Last — Breakeven — Implied vol 19.8% Delta 0.951 ≈95% ITM Gamma 0.055 Theta -0.012 Vega 0.01 Open interest — OI effective date — Model this call Put · $47 Daily-bar session Unknown Quote as of 2026-09-04 13:30:04.702 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	33.3%	0.748	$0.20	$4.70	—		—	$0.00	$0.05	—	—	—	—
Call · $48 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.502 UTC Last — Breakeven — Implied vol 33.3% Delta 0.748 ≈75% ITM Gamma 0.102 Theta -0.042 Vega 0.03 Open interest — OI effective date — Model this call Put · $48 Daily-bar session Unknown Quote as of 2026-09-04 13:30:04.702 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
1	1	—	—	$0.00	$3.70	$0.30		$0.10	$0.00	$0.05	—	—	4	4
Call · $49 In the money Daily-bar session Aug 31, 2026 Quote as of 2026-09-04 19:55:05.500 UTC Last $0.30 Breakeven $49.30 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this call Put · $49 Daily-bar session May 7, 2026 Quote as of 2026-09-04 13:30:04.702 UTC Last $0.10 Breakeven $48.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 OI effective date Sep 3, 2026 Model this put
Underlying $49.91
1	1	—	—	$0.00	$0.05	$0.05		$0.10	$0.10	$2.75	-0.49	37.5%	2	5
Call · $50 Daily-bar session Sep 3, 2026 Quote as of 2026-09-04 13:48:59.294 UTC Last $0.05 Breakeven $50.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this call Put · $50 In the money Daily-bar session Sep 4, 2026 Quote as of 2026-09-04 19:55:05.500 UTC Last $0.10 Breakeven $49.90 Implied vol 37.5% Delta -0.49 ≈49% ITM Gamma 0.113 Theta -0.052 Vega 0.038 Open interest 5 OI effective date Sep 3, 2026 Model this put
11	1	—	—	$0.00	$2.60	$0.12		$1.89	$1.05	$3.80	-0.57	49.1%	3	3
Call · $51 Daily-bar session Jun 26, 2026 Quote as of 2026-09-04 19:55:05.496 UTC Last $0.12 Breakeven $51.12 Implied vol — Delta — Gamma — Theta — Vega — Open interest 11 OI effective date Sep 3, 2026 Model this call Put · $51 In the money Daily-bar session Sep 4, 2026 Quote as of 2026-09-04 19:55:05.502 UTC Last $1.89 Breakeven $49.11 Implied vol 49.1% Delta -0.57 ≈57% ITM Gamma 0.085 Theta -0.067 Vega 0.037 Open interest 3 OI effective date Sep 3, 2026 Model this put
—	—	—	—	$0.00	$2.60	—		$2.65	$2.05	$3.50	-0.686	40.5%	3	5
Call · $52 Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.496 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 Sep 4, 2026 Quote as of 2026-09-04 19:55:05.502 UTC Last $2.65 Breakeven $49.35 Implied vol 40.5% Delta -0.686 ≈69% ITM Gamma 0.093 Theta -0.048 Vega 0.033 Open interest 5 OI effective date Sep 3, 2026 Model this put
—	—	—	—	$0.00	$2.60	—		—	$0.80	$5.60	-0.867	27.4%	—	—
Call · $53 Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.496 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 18:12:58.125 UTC Last — Breakeven — Implied vol 27.4% Delta -0.867 ≈87% ITM Gamma 0.083 Theta -0.017 Vega 0.02 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.60	—		—	$1.65	$6.50	-0.952	24.4%	—	—
Call · $54 Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.496 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 19:55:05.502 UTC Last — Breakeven — Implied vol 24.4% Delta -0.952 ≈95% ITM Gamma 0.044 Theta -0.004 Vega 0.009 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.60	—		—	$2.60	$7.60	-0.943	31.7%	—	—
Call · $55 Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.496 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $55 In the money Daily-bar session Unknown Quote as of 2026-09-04 16:30:00.866 UTC Last — Breakeven — Implied vol 31.7% Delta -0.943 ≈94% ITM Gamma 0.039 Theta -0.008 Vega 0.011 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.60	—		—	$3.60	$8.60	-0.948	36.4%	—	—
Call · $56 Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.496 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $56 In the money Daily-bar session Unknown Quote as of 2026-09-04 16:58:35.715 UTC Last — Breakeven — Implied vol 36.4% Delta -0.948 ≈95% ITM Gamma 0.031 Theta -0.009 Vega 0.01 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.60	—		—	$4.60	$9.60	-0.952	40.9%	—	—
Call · $57 Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.496 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $57 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:49:58.853 UTC Last — Breakeven — Implied vol 40.9% Delta -0.952 ≈95% ITM Gamma 0.026 Theta -0.009 Vega 0.009 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.60	—		—	$5.60	$10.60	-0.956	45.3%	—	—
Call · $58 Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.496 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $58 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:49:58.853 UTC Last — Breakeven — Implied vol 45.3% Delta -0.956 ≈96% ITM Gamma 0.022 Theta -0.01 Vega 0.009 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.60	—		—	$6.60	$11.60	-0.958	49.6%	—	—
Call · $59 Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.496 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $59 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:49:58.849 UTC Last — Breakeven — Implied vol 49.6% Delta -0.958 ≈96% ITM Gamma 0.019 Theta -0.01 Vega 0.008 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.60	—		—	$7.60	$12.60	-0.96	53.7%	—	—
Call · $60 Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.502 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $60 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:49:58.849 UTC Last — Breakeven — Implied vol 53.7% Delta -0.96 ≈96% ITM Gamma 0.017 Theta -0.011 Vega 0.008 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 · May 7, 2026–Sep 4, 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.