TBF · ProShares Short 20+ Year Treasury ETF

Alerts for TBF

$25.42 -0.06 (-0.24%) At close · Sep 4

Options Chain

Underlying $25.42 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 13 days to expiry · 42 contracts · mixed daily-bar sessions · Mar 17, 2026–Sep 3, 2026; 21 unknown

Put / call OI

0.30

Call-heavy positioning

Open interest

509

as of Sep 3, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$25.00

$0.42 below spot

ATM implied vol

13.9%

market's expected move

Open interest by strike

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 13d Oct 16 41d Dec 18 104d Mar 19 195d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$10.40	$12.30	—		—	$0.00	$0.75	—	—	—	—
Call · $14 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.872 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $14 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.003 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	28	—	—	$9.70	$11.10	$10.25		—	$0.00	$0.75	—	—	—	—
Call · $15 In the money Daily-bar session Aug 24, 2026 Quote as of 2026-09-04 19:59:31.834 UTC Last $10.25 Breakeven $25.25 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $15 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.003 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	25	—	—	$8.70	$10.10	$8.21		—	$0.00	$0.75	—	—	—	—
Call · $16 In the money Daily-bar session Apr 22, 2026 Quote as of 2026-09-04 19:59:31.876 UTC Last $8.21 Breakeven $24.21 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $16 Daily-bar session Unknown Quote as of 2026-09-04 19:59:59.675 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$7.70	$9.10	—		—	$0.00	$0.75	—	—	—	—
Call · $17 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.847 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $17 Daily-bar session Unknown Quote as of 2026-09-04 19:59:59.673 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$6.70	$8.10	—		—	$0.00	$0.75	—	—	—	—
Call · $18 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.872 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $18 Daily-bar session Unknown Quote as of 2026-09-04 19:59:59.682 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	2	62.2%	0.995	$5.70	$7.20	$5.40		—	$0.00	$0.75	—	—	—	—
Call · $19 In the money Daily-bar session Mar 31, 2026 Quote as of 2026-09-04 19:59:31.876 UTC Last $5.40 Breakeven $24.40 Implied vol 62.2% Delta 0.995 ≈99% ITM Gamma 0.005 Theta -0.004 Vega 0.001 Open interest — OI effective date — Model this call Put · $19 Daily-bar session Unknown Quote as of 2026-09-04 19:59:59.682 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
45	5	—	—	$4.80	$6.00	$5.50		—	$0.00	$0.75	—	—	—	—
Call · $20 In the money Daily-bar session Sep 2, 2026 Quote as of 2026-09-04 19:59:59.637 UTC Last $5.50 Breakeven $25.50 Implied vol — Delta — Gamma — Theta — Vega — Open interest 45 OI effective date Sep 3, 2026 Model this call Put · $20 Daily-bar session Unknown Quote as of 2026-09-04 19:59:59.721 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
1	2	—	—	$3.80	$5.00	$3.54		—	$0.00	$0.75	—	—	—	—
Call · $21 In the money Daily-bar session Jun 15, 2026 Quote as of 2026-09-04 19:59:59.637 UTC Last $3.54 Breakeven $24.54 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this call Put · $21 Daily-bar session Unknown Quote as of 2026-09-04 19:59:59.721 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
1	4	—	—	$2.80	$4.00	$3.46		$0.15	$0.00	$0.05	—	—	10	10
Call · $22 In the money Daily-bar session May 19, 2026 Quote as of 2026-09-04 19:59:59.637 UTC Last $3.46 Breakeven $25.46 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this call Put · $22 Daily-bar session Apr 6, 2026 Quote as of 2026-09-04 13:32:07.925 UTC Last $0.15 Breakeven $21.85 Implied vol — Delta — Gamma — Theta — Vega — Open interest 10 OI effective date Sep 3, 2026 Model this put
10	1	48.6%	0.875	$2.00	$3.20	$1.43		—	$0.00	$0.75	—	—	—	—
Call · $23 In the money Daily-bar session Jun 15, 2026 Quote as of 2026-09-04 19:59:59.637 UTC Last $1.43 Breakeven $24.43 Implied vol 48.6% Delta 0.875 ≈88% ITM Gamma 0.088 Theta -0.02 Vega 0.01 Open interest 10 OI effective date Sep 3, 2026 Model this call Put · $23 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.597 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
39	5	—	—	$1.05	$1.80	$1.70		$0.38	$0.00	$0.75	—	—	1	7
Call · $24 In the money Daily-bar session Aug 18, 2026 Quote as of 2026-09-04 19:59:59.637 UTC Last $1.70 Breakeven $25.70 Implied vol — Delta — Gamma — Theta — Vega — Open interest 39 OI effective date Sep 3, 2026 Model this call Put · $24 Daily-bar session Sep 3, 2026 Quote as of 2026-09-04 19:59:59.706 UTC Last $0.38 Breakeven $23.62 Implied vol — Delta — Gamma — Theta — Vega — Open interest 7 OI effective date Sep 3, 2026 Model this put
101	2	13.9%	0.757	$0.25	$0.85	$0.45		$0.39	$0.00	$0.35	—	—	1	59
Call · $25 In the money Daily-bar session Sep 3, 2026 Quote as of 2026-09-04 19:59:59.940 UTC Last $0.45 Breakeven $25.45 Implied vol 13.9% Delta 0.757 ≈76% ITM Gamma 0.468 Theta -0.01 Vega 0.015 Open interest 101 OI effective date Sep 3, 2026 Model this call Put · $25 Daily-bar session Sep 3, 2026 Quote as of 2026-09-04 19:59:59.706 UTC Last $0.39 Breakeven $24.61 Implied vol — Delta — Gamma — Theta — Vega — Open interest 59 OI effective date Sep 3, 2026 Model this put
Underlying $25.42
35	1	—	—	$0.00	$0.05	$0.14		$0.65	$0.30	$1.00	-0.761	15.6%	10	40
Call · $26 Daily-bar session Sep 3, 2026 Quote as of 2026-09-04 14:38:32.019 UTC Last $0.14 Breakeven $26.14 Implied vol — Delta — Gamma — Theta — Vega — Open interest 35 OI effective date Sep 3, 2026 Model this call Put · $26 In the money Daily-bar session Aug 24, 2026 Quote as of 2026-09-04 19:59:59.940 UTC Last $0.65 Breakeven $25.35 Implied vol 15.6% Delta -0.761 ≈76% ITM Gamma 0.415 Theta -0.007 Vega 0.015 Open interest 40 OI effective date Sep 3, 2026 Model this put
66	3	—	—	$0.00	$0.75	$0.15		—	$1.25	$1.95	-0.898	24.2%	—	—
Call · $27 Daily-bar session May 1, 2026 Quote as of 2026-09-04 19:59:59.721 UTC Last $0.15 Breakeven $27.15 Implied vol — Delta — Gamma — Theta — Vega — Open interest 66 OI effective date Sep 3, 2026 Model this call Put · $27 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:59.940 UTC Last — Breakeven — Implied vol 24.2% Delta -0.898 ≈90% ITM Gamma 0.154 Theta -0.006 Vega 0.009 Open interest — OI effective date — Model this put
30	10	—	—	$0.00	$0.75	$0.04		$3.80	$2.00	$3.20	-0.923	34.7%	1	—
Call · $28 Daily-bar session Aug 14, 2026 Quote as of 2026-09-04 19:59:59.721 UTC Last $0.04 Breakeven $28.04 Implied vol — Delta — Gamma — Theta — Vega — Open interest 30 OI effective date Sep 3, 2026 Model this call Put · $28 In the money Daily-bar session Jun 16, 2026 Quote as of 2026-09-04 19:59:59.637 UTC Last $3.80 Breakeven $24.20 Implied vol 34.7% Delta -0.923 ≈92% ITM Gamma 0.087 Theta -0.007 Vega 0.007 Open interest — OI effective date — Model this put
55	1	—	—	$0.00	$0.75	$0.12		$4.84	$3.00	$4.20	-0.936	44.3%	100	—
Call · $29 Daily-bar session Sep 3, 2026 Quote as of 2026-09-04 19:59:59.721 UTC Last $0.12 Breakeven $29.12 Implied vol — Delta — Gamma — Theta — Vega — Open interest 55 OI effective date Sep 3, 2026 Model this call Put · $29 In the money Daily-bar session Mar 31, 2026 Quote as of 2026-09-04 19:59:59.636 UTC Last $4.84 Breakeven $24.16 Implied vol 44.3% Delta -0.936 ≈94% ITM Gamma 0.059 Theta -0.008 Vega 0.006 Open interest — OI effective date — Model this put
10	10	—	—	$0.00	$0.75	$0.10		—	$4.00	$5.20	-0.944	53.2%	—	—
Call · $30 Daily-bar session Mar 17, 2026 Quote as of 2026-09-04 19:59:59.721 UTC Last $0.10 Breakeven $30.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 10 OI effective date Sep 3, 2026 Model this call Put · $30 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:59.637 UTC Last — Breakeven — Implied vol 53.2% Delta -0.944 ≈94% ITM Gamma 0.044 Theta -0.008 Vega 0.005 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$5.00	$6.20	-0.949	61.6%	—	—
Call · $31 Daily-bar session Unknown Quote as of 2026-09-04 19:59:59.721 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $31 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:59.636 UTC Last — Breakeven — Implied vol 61.6% Delta -0.949 ≈95% ITM Gamma 0.035 Theta -0.009 Vega 0.005 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$5.90	$7.30	-0.953	69.6%	—	—
Call · $32 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.597 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $32 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.834 UTC Last — Breakeven — Implied vol 69.6% Delta -0.953 ≈95% ITM Gamma 0.029 Theta -0.01 Vega 0.005 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$6.90	$8.30	-0.956	77.2%	—	—
Call · $33 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.598 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $33 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.872 UTC Last — Breakeven — Implied vol 77.2% Delta -0.956 ≈96% ITM Gamma 0.025 Theta -0.01 Vega 0.004 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		$9.79	$7.90	$9.30	-0.959	84.5%	1	—
Call · $34 Daily-bar session Unknown Quote as of 2026-09-04 19:55:22.726 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $34 In the money Daily-bar session Mar 30, 2026 Quote as of 2026-09-04 19:59:31.872 UTC Last $9.79 Breakeven $24.21 Implied vol 84.5% Delta -0.959 ≈96% ITM Gamma 0.022 Theta -0.011 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 · Mar 17, 2026–Sep 3, 2026; 21 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.