ALTO · Alto Ingredients, Inc.

Track ALTO — free

$4.04 +0.01 (+0.25%) At close · Sep 4

Russell 2000 member Rebalance outlook locked

Market Cap

$313.37M

77.57M

Options Chain

Underlying $4.04 · at close Sep 4, 2026 Options Calculator

Pull option chains with greeks and open interest through the options chain API or MCP →

Positioning

Sep 18, 2026 · 10 days to expiry · 24 contracts · mixed daily-bar sessions · Jul 27, 2026–Sep 4, 2026; 8 unknown

Put / call OI

0.28

Call-heavy positioning

Open interest

3,727

as of Sep 3, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$4.00

$0.04 below spot

ATM implied vol

70.6%

market's expected move

Open interest by strike

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 10d Oct 16 38d Jan 15 129d Apr 16 220d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
54	1	—	—	$2.50	$3.50	$3.00		$0.12	$0.00	$0.25	—	—	1	2
Call · $1 In the money Daily-bar session Aug 31, 2026 Quote as of 2026-09-04 19:59:59.634 UTC Last $3.00 Breakeven $4.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 54 OI effective date Sep 3, 2026 Model this call Put · $1 Daily-bar session Aug 7, 2026 Quote as of 2026-09-04 19:59:59.701 UTC Last $0.12 Breakeven $0.88 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 3, 2026 Model this put
21	5	—	—	$1.70	$2.45	$1.95		$0.05	$0.00	$0.70	—	—	4	2
Call · $2 In the money Daily-bar session Sep 1, 2026 Quote as of 2026-09-04 19:59:59.663 UTC Last $1.95 Breakeven $3.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 21 OI effective date Sep 3, 2026 Model this call Put · $2 Daily-bar session Jul 27, 2026 Quote as of 2026-09-04 19:59:59.739 UTC Last $0.05 Breakeven $1.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 3, 2026 Model this put
102	100	—	—	$0.70	$1.45	$1.05		$0.05	$0.00	$0.05	—	—	1	5
Call · $3 In the money Daily-bar session Sep 1, 2026 Quote as of 2026-09-04 19:59:27.795 UTC Last $1.05 Breakeven $4.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 102 OI effective date Sep 3, 2026 Model this call Put · $3 Daily-bar session Aug 31, 2026 Quote as of 2026-09-04 14:52:19.974 UTC Last $0.05 Breakeven $2.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 OI effective date Sep 3, 2026 Model this put
453	3	69%	0.552	$0.10	$0.30	$0.25		$0.15	$0.15	$0.20	-0.448	72.2%	1	742
Call · $4 In the money Daily-bar session Sep 4, 2026 Quote as of 2026-09-04 19:59:59.903 UTC Last $0.25 Breakeven $4.25 Implied vol 69% Delta 0.552 ≈55% ITM Gamma 0.86 Theta -0.009 Vega 0.003 Open interest 453 OI effective date Sep 3, 2026 Model this call Put · $4 Daily-bar session Sep 4, 2026 Quote as of 2026-09-04 19:59:59.658 UTC Last $0.15 Breakeven $3.85 Implied vol 72.2% Delta -0.448 ≈45% ITM Gamma 0.821 Theta -0.009 Vega 0.003 Open interest 742 OI effective date Sep 3, 2026 Model this put
Underlying $4.04
1.4k	2	—	—	$0.00	$0.05	$0.05		$1.08	$0.55	$1.30	—	—	5	47
Call · $5 Daily-bar session Sep 3, 2026 Quote as of 2026-09-04 15:02:09.764 UTC Last $0.05 Breakeven $5.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1.4k OI effective date Sep 3, 2026 Model this call Put · $5 In the money Daily-bar session Sep 1, 2026 Quote as of 2026-09-04 19:59:59.669 UTC Last $1.08 Breakeven $3.92 Implied vol — Delta — Gamma — Theta — Vega — Open interest 47 OI effective date Sep 3, 2026 Model this put
788	3	—	—	$0.00	$0.05	$0.01		$1.95	$1.55	$2.30	—	—	2	5
Call · $6 Daily-bar session Sep 1, 2026 Quote as of 2026-09-04 18:29:21.690 UTC Last $0.01 Breakeven $6.01 Implied vol — Delta — Gamma — Theta — Vega — Open interest 788 OI effective date Sep 3, 2026 Model this call Put · $6 In the money Daily-bar session Aug 25, 2026 Quote as of 2026-09-04 19:59:59.662 UTC Last $1.95 Breakeven $4.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 OI effective date Sep 3, 2026 Model this put
149	200	—	—	$0.00	$0.05	$0.05		$2.95	$2.50	$3.50	—	—	2	—
Call · $7 Daily-bar session Aug 25, 2026 Quote as of 2026-09-04 15:02:09.765 UTC Last $0.05 Breakeven $7.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 149 OI effective date Sep 3, 2026 Model this call Put · $7 In the money Daily-bar session Aug 25, 2026 Quote as of 2026-09-04 19:59:59.663 UTC Last $2.95 Breakeven $4.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.70	—		$3.50	$3.50	$4.40	—	—	5	5
Call · $8 Daily-bar session Unknown Quote as of 2026-09-04 19:55:09.003 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $8 In the money Daily-bar session Aug 6, 2026 Quote as of 2026-09-04 19:59:59.663 UTC Last $3.50 Breakeven $4.50 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 OI effective date Sep 3, 2026 Model this put
—	—	—	—	$0.00	$0.70	—		$4.90	$4.40	$5.40	—	—	1	—
Call · $9 Daily-bar session Unknown Quote as of 2026-09-04 19:59:38.471 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $9 In the money Daily-bar session Aug 28, 2026 Quote as of 2026-09-04 19:59:59.663 UTC Last $4.90 Breakeven $4.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.70	—		—	$5.50	$6.40	—	—	—	—
Call · $10 Daily-bar session Unknown Quote as of 2026-09-04 19:59:59.709 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $10 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:59.663 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.70	—		—	$6.50	$7.50	—	—	—	—
Call · $11 Daily-bar session Unknown Quote as of 2026-09-04 19:59:59.740 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $11 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.451 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.70	—		—	$7.50	$8.50	—	—	—	—
Call · $12 Daily-bar session Unknown Quote as of 2026-09-04 19:55:08.009 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $12 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:49.941 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 27, 2026–Sep 4, 2026; 8 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 778164 CUSIP 021513106 13F (30d) 85 filings 85 filers Visit website Investor relations