SCHO · Schwab Short-Term U.S. Treasury ETF ETF

Alerts for SCHO

$24.02 +0.01 (+0.04%) At close · Sep 4

Options Chain

Underlying $24.02 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 13 days to expiry · 38 contracts · mixed daily-bar sessions · Jul 20, 2026–Aug 28, 2026; 18 unknown

Put / call OI

2.29

Put-heavy positioning

Open interest

as of Sep 3, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$24.00

$0.02 below spot

ATM implied vol

25.9%

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 Nov 20 76d Feb 19 167d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$7.60	$10.50	—		$0.10	$0.00	$1.35	—	—	12	14
Call · $15 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:13.856 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $15 Daily-bar session Aug 11, 2026 Quote as of 2026-09-04 13:32:54.408 UTC Last $0.10 Breakeven $14.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 14 OI effective date Sep 3, 2026 Model this put
—	—	—	—	$6.60	$9.50	—		$0.10	$0.00	$1.35	—	—	2	4
Call · $16 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:13.612 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $16 Daily-bar session Aug 11, 2026 Quote as of 2026-09-04 13:32:54.408 UTC Last $0.10 Breakeven $15.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 OI effective date Sep 3, 2026 Model this put
—	—	76.6%	0.993	$5.60	$8.50	—		$0.10	$0.00	$1.35	—	—	3	3
Call · $17 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:13.353 UTC Last — Breakeven — Implied vol 76.6% Delta 0.993 ≈99% ITM Gamma 0.005 Theta -0.004 Vega 0.001 Open interest — OI effective date — Model this call Put · $17 Daily-bar session Aug 5, 2026 Quote as of 2026-09-04 19:58:15.283 UTC Last $0.10 Breakeven $16.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 OI effective date Sep 3, 2026 Model this put
—	—	63.7%	0.993	$4.60	$7.50	—		$0.10	$0.00	$1.35	—	—	1	7
Call · $18 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:12.959 UTC Last — Breakeven — Implied vol 63.7% Delta 0.993 ≈99% ITM Gamma 0.007 Theta -0.004 Vega 0.001 Open interest — OI effective date — Model this call Put · $18 Daily-bar session Aug 11, 2026 Quote as of 2026-09-04 19:55:24.713 UTC Last $0.10 Breakeven $17.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 7 OI effective date Sep 3, 2026 Model this put
—	—	51.6%	0.993	$3.60	$6.50	—		$0.05	$0.00	$1.35	—	—	6	4
Call · $19 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:12.404 UTC Last — Breakeven — Implied vol 51.6% Delta 0.993 ≈99% ITM Gamma 0.008 Theta -0.004 Vega 0.001 Open interest — OI effective date — Model this call Put · $19 Daily-bar session Aug 5, 2026 Quote as of 2026-09-04 19:55:07.567 UTC Last $0.05 Breakeven $18.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 OI effective date Sep 3, 2026 Model this put
—	—	40.1%	0.993	$2.60	$5.50	—		$0.05	$0.00	$1.35	—	—	4	1
Call · $20 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:11.166 UTC Last — Breakeven — Implied vol 40.1% Delta 0.993 ≈99% ITM Gamma 0.01 Theta -0.003 Vega 0.001 Open interest — OI effective date — Model this call Put · $20 Daily-bar session Jul 31, 2026 Quote as of 2026-09-04 19:55:25.578 UTC Last $0.05 Breakeven $19.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this put
—	—	29.1%	0.994	$1.60	$4.50	—		$0.05	$0.00	$1.35	—	—	2	—
Call · $21 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:09.394 UTC Last — Breakeven — Implied vol 29.1% Delta 0.994 ≈99% ITM Gamma 0.013 Theta -0.003 Vega 0.001 Open interest — OI effective date — Model this call Put · $21 Daily-bar session Aug 5, 2026 Quote as of 2026-09-04 19:59:04.978 UTC Last $0.05 Breakeven $20.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	18.6%	0.995	$0.60	$3.50	—		$0.05	$0.00	$1.35	—	—	2	—
Call · $22 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:07.193 UTC Last — Breakeven — Implied vol 18.6% Delta 0.995 ≈99% ITM Gamma 0.018 Theta -0.003 Vega 0.001 Open interest — OI effective date — Model this call Put · $22 Daily-bar session Aug 3, 2026 Quote as of 2026-09-04 19:58:57.293 UTC Last $0.05 Breakeven $21.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
1	1	—	—	$0.00	$2.45	$1.49		$0.05	$0.00	$0.05	—	—	4	12
Call · $23 In the money Daily-bar session Jul 20, 2026 Quote as of 2026-09-04 19:55:04.233 UTC Last $1.49 Breakeven $24.49 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this call Put · $23 Daily-bar session Aug 3, 2026 Quote as of 2026-09-04 19:49:58.130 UTC Last $0.05 Breakeven $22.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 12 OI effective date Sep 3, 2026 Model this put
—	—	—	—	$0.00	$1.45	—		$0.75	$0.00	$1.35	—	—	5	10
Call · $24 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:45.295 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $24 Daily-bar session Aug 28, 2026 Quote as of 2026-09-04 19:59:45.295 UTC Last $0.75 Breakeven $23.25 Implied vol — Delta — Gamma — Theta — Vega — Open interest 10 OI effective date Sep 3, 2026 Model this put
Underlying $24.02
3	1	—	—	$0.00	$0.20	$0.05		—	$0.00	$2.40	—	—	—	—
Call · $25 Daily-bar session Aug 18, 2026 Quote as of 2026-09-04 19:55:03.786 UTC Last $0.05 Breakeven $25.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 OI effective date Sep 3, 2026 Model this call Put · $25 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.136 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	2	—	—	$0.00	$1.35	$0.05		—	$0.55	$3.40	-0.942	25.9%	—	—
Call · $26 Daily-bar session Aug 6, 2026 Quote as of 2026-09-04 19:55:44.353 UTC Last $0.05 Breakeven $26.05 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 19:55:07.605 UTC Last — Breakeven — Implied vol 25.9% Delta -0.942 ≈94% ITM Gamma 0.099 Theta -0.003 Vega 0.005 Open interest — OI effective date — Model this put
2	8	—	—	$0.00	$0.05	$0.05		—	$1.55	$4.40	-0.954	35.7%	—	—
Call · $27 Daily-bar session Aug 5, 2026 Quote as of 2026-09-04 19:58:30.352 UTC Last $0.05 Breakeven $27.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 3, 2026 Model this call Put · $27 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:09.712 UTC Last — Breakeven — Implied vol 35.7% Delta -0.954 ≈95% ITM Gamma 0.06 Theta -0.003 Vega 0.004 Open interest — OI effective date — Model this put
—	2	—	—	$0.00	$1.35	$0.05		—	$2.55	$5.40	-0.96	44.8%	—	—
Call · $28 Daily-bar session Aug 5, 2026 Quote as of 2026-09-04 19:55:05.997 UTC Last $0.05 Breakeven $28.05 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 19:55:11.566 UTC Last — Breakeven — Implied vol 44.8% Delta -0.96 ≈96% ITM Gamma 0.042 Theta -0.004 Vega 0.004 Open interest — OI effective date — Model this put
1	6	—	—	$0.00	$1.35	$0.05		—	$3.50	$6.40	-0.988	43%	—	—
Call · $29 Daily-bar session Jul 31, 2026 Quote as of 2026-09-04 19:56:41.068 UTC Last $0.05 Breakeven $29.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this call Put · $29 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:12.841 UTC Last — Breakeven — Implied vol 43% Delta -0.988 ≈99% ITM Gamma 0.016 Theta 0.001 Vega 0.001 Open interest — OI effective date — Model this put
1	4	—	—	$0.00	$1.35	$0.05		—	$4.50	$7.40	-0.988	50.6%	—	—
Call · $30 Daily-bar session Aug 3, 2026 Quote as of 2026-09-04 19:55:09.558 UTC Last $0.05 Breakeven $30.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this call Put · $30 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:13.380 UTC Last — Breakeven — Implied vol 50.6% Delta -0.988 ≈99% ITM Gamma 0.013 Theta 0 Vega 0.001 Open interest — OI effective date — Model this put
5	4	—	—	$0.00	$1.35	$0.10		—	$5.50	$8.40	-0.988	58%	—	—
Call · $31 Daily-bar session Aug 11, 2026 Quote as of 2026-09-04 19:59:56.758 UTC Last $0.10 Breakeven $31.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 OI effective date Sep 3, 2026 Model this call Put · $31 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:13.756 UTC Last — Breakeven — Implied vol 58% Delta -0.988 ≈99% ITM Gamma 0.012 Theta 0 Vega 0.001 Open interest — OI effective date — Model this put
6	6	—	—	$0.00	$1.35	$0.10		—	$6.50	$9.40	-0.988	65.1%	—	—
Call · $32 Daily-bar session Aug 11, 2026 Quote as of 2026-09-04 19:59:05.437 UTC Last $0.10 Breakeven $32.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 OI effective date Sep 3, 2026 Model this call Put · $32 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:14.002 UTC Last — Breakeven — Implied vol 65.1% Delta -0.988 ≈99% ITM Gamma 0.011 Theta 0 Vega 0.001 Open interest — OI effective date — Model this put
5	5	—	—	$0.00	$1.35	$0.10		—	$7.50	$10.40	-0.988	72%	—	—
Call · $33 Daily-bar session Aug 11, 2026 Quote as of 2026-09-04 19:59:05.437 UTC Last $0.10 Breakeven $33.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 OI effective date Sep 3, 2026 Model this call Put · $33 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:14.250 UTC Last — Breakeven — Implied vol 72% Delta -0.988 ≈99% ITM Gamma 0.01 Theta -0.001 Vega 0.001 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–Aug 28, 2026; 18 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.