SCHK · Schwab 1000 Index ETF ETF

Alerts for SCHK

$37.14 -0.13 (-0.35%) At close · Sep 4

Options Chain

Underlying $37.14 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 12 days to expiry · 38 contracts · mixed daily-bar sessions · Aug 3, 2026–Sep 1, 2026; 35 unknown

Put / call OI

0.33

Call-heavy positioning

Open interest

as of Sep 3, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$36.00

$1.14 below spot

ATM implied vol

9.6%

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 Nov 20 75d Feb 19 166d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	78.2%	0.988	$9.40	$11.00	—		—	$0.00	$0.40	—	—	—	—
Call · $27 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.266 UTC Last — Breakeven — Implied vol 78.2% Delta 0.988 ≈99% ITM Gamma 0.006 Theta -0.01 Vega 0.002 Open interest — OI effective date — Model this call Put · $27 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.515 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	69.8%	0.987	$8.40	$10.00	—		—	$0.00	$0.40	—	—	—	—
Call · $28 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.195 UTC Last — Breakeven — Implied vol 69.8% Delta 0.987 ≈99% ITM Gamma 0.007 Theta -0.009 Vega 0.002 Open interest — OI effective date — Model this call Put · $28 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.400 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	61.7%	0.986	$7.40	$9.00	—		—	$0.00	$0.40	—	—	—	—
Call · $29 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.108 UTC Last — Breakeven — Implied vol 61.7% Delta 0.986 ≈99% ITM Gamma 0.008 Theta -0.009 Vega 0.003 Open interest — OI effective date — Model this call Put · $29 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.296 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	53.8%	0.985	$6.40	$8.00	—		—	$0.00	$0.40	—	—	—	—
Call · $30 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.059 UTC Last — Breakeven — Implied vol 53.8% Delta 0.985 ≈98% ITM Gamma 0.01 Theta -0.009 Vega 0.003 Open interest — OI effective date — Model this call Put · $30 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.195 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	46.2%	0.984	$5.40	$7.00	—		—	$0.00	$0.40	—	—	—	—
Call · $31 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.967 UTC Last — Breakeven — Implied vol 46.2% Delta 0.984 ≈98% ITM Gamma 0.013 Theta -0.008 Vega 0.003 Open interest — OI effective date — Model this call Put · $31 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.095 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	48.8%	0.953	$4.40	$6.10	—		—	$0.00	$0.40	—	—	—	—
Call · $32 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:13.371 UTC Last — Breakeven — Implied vol 48.8% Delta 0.953 ≈95% ITM Gamma 0.029 Theta -0.016 Vega 0.007 Open interest — OI effective date — Model this call Put · $32 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.993 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	40.4%	0.946	$3.40	$5.10	—		—	$0.00	$0.40	—	—	—	—
Call · $33 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.796 UTC Last — Breakeven — Implied vol 40.4% Delta 0.946 ≈95% ITM Gamma 0.039 Theta -0.015 Vega 0.008 Open interest — OI effective date — Model this call Put · $33 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.884 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	24.4%	0.976	$2.40	$4.00	—		—	$0.00	$0.40	—	—	—	—
Call · $34 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:09.750 UTC Last — Breakeven — Implied vol 24.4% Delta 0.976 ≈98% ITM Gamma 0.033 Theta -0.007 Vega 0.004 Open interest — OI effective date — Model this call Put · $34 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.791 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	17.3%	0.97	$1.40	$3.00	—		—	$0.00	$0.45	—	—	—	—
Call · $35 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.606 UTC Last — Breakeven — Implied vol 17.3% Delta 0.97 ≈97% ITM Gamma 0.057 Theta -0.007 Vega 0.005 Open interest — OI effective date — Model this call Put · $35 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.691 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
1	1	16.6%	0.854	$0.45	$2.10	$1.23		$0.15	$0.00	$0.50	—	—	1	1
Call · $36 In the money Daily-bar session Aug 26, 2026 Quote as of 2026-09-04 19:59:31.508 UTC Last $1.23 Breakeven $37.23 Implied vol 16.6% Delta 0.854 ≈85% ITM Gamma 0.197 Theta -0.013 Vega 0.016 Open interest 1 OI effective date Sep 3, 2026 Model this call Put · $36 Daily-bar session Sep 1, 2026 Quote as of 2026-09-04 19:59:31.595 UTC Last $0.15 Breakeven $35.85 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this put
—	—	—	—	$0.00	$1.20	—		—	$0.00	$1.00	—	—	—	—
Call · $37 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:59.997 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $37 Daily-bar session Unknown Quote as of 2026-09-04 19:59:59.997 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
Underlying $37.14
—	—	—	—	$0.00	$0.50	—		—	$0.05	$1.65	-0.881	9.6%	—	—
Call · $38 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.584 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $38 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.491 UTC Last — Breakeven — Implied vol 9.6% Delta -0.881 ≈88% ITM Gamma 0.295 Theta -0.002 Vega 0.014 Open interest — OI effective date — Model this put
2	2	—	—	$0.00	$0.40	$0.07		—	$1.00	$2.65	-0.961	14.2%	—	—
Call · $39 Daily-bar session Aug 3, 2026 Quote as of 2026-09-04 19:59:31.673 UTC Last $0.07 Breakeven $39.07 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 3, 2026 Model this call Put · $39 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:06.944 UTC Last — Breakeven — Implied vol 14.2% Delta -0.961 ≈96% ITM Gamma 0.085 Theta 0.001 Vega 0.006 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.40	—		—	$2.00	$3.70	-0.941	24.3%	—	—
Call · $40 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.773 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $40 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:09.256 UTC Last — Breakeven — Implied vol 24.3% Delta -0.941 ≈94% ITM Gamma 0.069 Theta -0.004 Vega 0.008 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.40	—		—	$2.90	$4.70	—	—	—	—
Call · $41 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.864 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $41 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.779 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.40	—		—	$3.90	$5.70	—	—	—	—
Call · $42 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.964 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $42 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:13.047 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.45	—		—	$4.90	$6.70	—	—	—	—
Call · $43 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.073 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $43 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:14.266 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.40	—		—	$5.90	$7.70	—	—	—	—
Call · $44 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.173 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $44 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.009 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.40	—		—	$6.90	$8.70	—	—	—	—
Call · $45 Daily-bar session Unknown Quote as of 2026-09-04 19:52:57.226 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $45 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.105 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 · Aug 3, 2026–Sep 1, 2026; 35 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.