REX · REX AMERICAN RESOURCES Corp · Options Chain

Track REX — free

$41.62 -0.51 (-1.21%) At close · Sep 11

S&P 600 member Russell 2000 member Rebalance outlook locked

Market Cap

$1.38B

33.18M

Options Chain

Underlying $41.62 · at close Sep 11, 2026 Options Calculator

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Positioning

Sep 18, 2026 · 5 days to expiry · 20 contracts · mixed daily-bar sessions · Jul 28, 2026–Sep 11, 2026; 16 unknown

Put / call OI

0.00

Call-heavy positioning

Open interest

477

as of Sep 10, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$40.00

$1.62 below spot

ATM implied vol

75.2%

market's expected move

Open interest by strike

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 5d Oct 16 33d Nov 20 68d Feb 19 159d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$15.40	$18.50	—		—	$0.00	$0.75	—	—	—	—
Call · $25 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:58:00.427 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $25 Daily-bar session Unknown Quote as of 2026-09-11 19:59:52.324 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$10.90	$13.40	—		—	$0.00	$0.75	—	—	—	—
Call · $30 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.677 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $30 Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.435 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	95.8%	0.946	$5.40	$8.10	—		—	$0.00	$0.75	—	—	—	—
Call · $35 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.951 UTC Last — Breakeven — Implied vol 95.8% Delta 0.946 ≈95% ITM Gamma 0.024 Theta -0.055 Vega 0.005 Open interest — OI effective date — Model this call Put · $35 Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.430 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	75.2%	0.692	$1.00	$3.80	—		$1.38	$0.00	$0.70	—	—	2	2
Call · $40 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.429 UTC Last — Breakeven — Implied vol 75.2% Delta 0.692 ≈69% ITM Gamma 0.096 Theta -0.132 Vega 0.017 Open interest — OI effective date — Model this call Put · $40 Daily-bar session Sep 1, 2026 Quote as of 2026-09-11 19:59:42.636 UTC Last $1.38 Breakeven $38.62 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 10, 2026 Model this put
Underlying $41.62
472	6	48.9%	0.092	$0.05	$0.15	$0.12		—	$2.15	$4.50	—	—	—	—
Call · $45 Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:54:59.124 UTC Last $0.12 Breakeven $45.12 Implied vol 48.9% Delta 0.092 ≈9% ITM Gamma 0.07 Theta -0.04 Vega 0.008 Open interest 472 OI effective date Sep 10, 2026 Model this call Put · $45 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.435 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
2	1	—	—	$0.00	$0.75	$1.05		—	$6.70	$9.10	—	—	—	—
Call · $50 Daily-bar session Jul 31, 2026 Quote as of 2026-09-11 19:59:59.460 UTC Last $1.05 Breakeven $51.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 10, 2026 Model this call Put · $50 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.425 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
1	1	—	—	$0.00	$0.95	$0.35		—	$11.70	$14.60	—	—	—	—
Call · $55 Daily-bar session Jul 28, 2026 Quote as of 2026-09-11 19:59:59.771 UTC Last $0.35 Breakeven $55.35 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 10, 2026 Model this call Put · $55 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.425 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$16.70	$19.60	—	—	—	—
Call · $60 Daily-bar session Unknown Quote as of 2026-09-11 19:59:52.324 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 2026-09-11 19:58:28.652 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.75	—		—	$21.70	$24.30	—	—	—	—
Call · $65 Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.413 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $65 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.992 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$26.70	$29.20	—	—	—	—
Call · $70 Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.413 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $70 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.998 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 · Jul 28, 2026–Sep 11, 2026; 16 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.

Key facts CIK 744187 CUSIP 761624105 13F (30d) 70 filings 70 filers Visit website Investor relations