ASPI · ASP Isotopes Inc. · Options Chain

Track ASPI — free

$3.31 -0.28 (-7.80%) At close · Sep 11

Russell 2000 member Rebalance outlook locked

Market Cap

$507.45M

153.31M

Options Chain

Underlying $3.31 · at close Sep 11, 2026 Options Calculator

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Positioning

Sep 18, 2026 · 5 days to expiry · 34 contracts · mixed daily-bar sessions · Jul 27, 2026–Sep 11, 2026; 6 unknown

Put / call OI

0.23

Call-heavy positioning

Open interest

12,733

as of Sep 10, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$4.00

$0.69 above spot

ATM implied vol

109.7%

market's expected move

Open interest by strike

Calls Puts

0.5

1.5

2.5

3.5

4.5

5.5

6.5

7.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 5d Sep 25 12d Oct 2 19d Oct 9 26d Oct 16 33d Oct 23 40d Oct 30 47d Jan 15 124d Apr 16 215d Jan 21 495d Jan 19 859d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
10	1	—	—	$2.50	$3.00	$2.92		—	$0.00	$0.05	—	—	—	—
Call · $0.5 In the money Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.423 UTC Last $2.92 Breakeven $3.42 Implied vol — Delta — Gamma — Theta — Vega — Open interest 10 OI effective date Sep 10, 2026 Model this call Put · $0.5 Daily-bar session Unknown Quote as of 2026-09-11 13:32:00.477 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
4	2	—	—	$2.20	$2.50	$2.47		—	$0.00	$0.05	—	—	—	—
Call · $1 In the money Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.545 UTC Last $2.47 Breakeven $3.47 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 OI effective date Sep 10, 2026 Model this call Put · $1 Daily-bar session Unknown Quote as of 2026-09-11 13:32:11.734 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$1.75	$2.05	—		—	$0.00	$0.05	—	—	—	—
Call · $1.5 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.421 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $1.5 Daily-bar session Unknown Quote as of 2026-09-11 13:32:07.652 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
5	1	—	—	$1.20	$1.70	$2.00		$0.03	$0.00	$0.05	—	—	2	2
Call · $2 In the money Daily-bar session Aug 19, 2026 Quote as of 2026-09-11 19:59:59.843 UTC Last $2.00 Breakeven $4.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 OI effective date Sep 10, 2026 Model this call Put · $2 Daily-bar session Aug 27, 2026 Quote as of 2026-09-11 13:32:03.109 UTC Last $0.03 Breakeven $1.97 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 10, 2026 Model this put
2	2	—	—	$0.75	$1.05	$1.57		$0.02	$0.00	$0.25	—	—	1	—
Call · $2.5 In the money Daily-bar session Aug 31, 2026 Quote as of 2026-09-11 19:59:59.432 UTC Last $1.57 Breakeven $4.07 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 10, 2026 Model this call Put · $2.5 Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.748 UTC Last $0.02 Breakeven $2.48 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
74	10	128.8%	0.78	$0.30	$0.50	$0.40		$0.04	$0.00	$0.05	—	—	22	77
Call · $3 In the money Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.601 UTC Last $0.40 Breakeven $3.40 Implied vol 128.8% Delta 0.78 ≈78% ITM Gamma 0.59 Theta -0.015 Vega 0.001 Open interest 74 OI effective date Sep 10, 2026 Model this call Put · $3 Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:49:59.364 UTC Last $0.04 Breakeven $2.96 Implied vol — Delta — Gamma — Theta — Vega — Open interest 77 OI effective date Sep 10, 2026 Model this put
Underlying $3.31
1	22	107.4%	0.371	$0.05	$0.15	$0.10		$0.25	$0.20	$0.35	-0.622	112%	64	438
Call · $3.5 Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.423 UTC Last $0.10 Breakeven $3.60 Implied vol 107.4% Delta 0.371 ≈37% ITM Gamma 0.903 Theta -0.016 Vega 0.002 Open interest 1 OI effective date Sep 10, 2026 Model this call Put · $3.5 In the money Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.421 UTC Last $0.25 Breakeven $3.25 Implied vol 112% Delta -0.622 ≈62% ITM Gamma 0.871 Theta -0.016 Vega 0.002 Open interest 438 OI effective date Sep 10, 2026 Model this put
7.1k	323	—	—	$0.00	$0.05	$0.05		$0.67	$0.60	$0.75	-0.951	91.6%	64	1.5k
Call · $4 Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.421 UTC Last $0.05 Breakeven $4.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 7.1k OI effective date Sep 10, 2026 Model this call Put · $4 In the money Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.987 UTC Last $0.67 Breakeven $3.33 Implied vol 91.6% Delta -0.951 ≈95% ITM Gamma 0.286 Theta -0.003 Vega 0 Open interest 1.5k OI effective date Sep 10, 2026 Model this put
247	51	—	—	$0.00	$0.05	$0.03		$1.10	$1.05	$1.25	—	—	7	5
Call · $4.5 Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.421 UTC Last $0.03 Breakeven $4.53 Implied vol — Delta — Gamma — Theta — Vega — Open interest 247 OI effective date Sep 10, 2026 Model this call Put · $4.5 In the money Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.986 UTC Last $1.10 Breakeven $3.40 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 OI effective date Sep 10, 2026 Model this put
1.1k	1	—	—	$0.00	$0.05	$0.03		$1.64	$1.60	$1.75	—	—	4	363
Call · $5 Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 13:30:03.500 UTC Last $0.03 Breakeven $5.03 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1.1k OI effective date Sep 10, 2026 Model this call Put · $5 In the money Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:56.572 UTC Last $1.64 Breakeven $3.36 Implied vol — Delta — Gamma — Theta — Vega — Open interest 363 OI effective date Sep 10, 2026 Model this put
7	1	—	—	$0.00	$0.05	$0.01		$2.15	$2.10	$2.30	—	—	2	1
Call · $5.5 Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 13:59:55.316 UTC Last $0.01 Breakeven $5.51 Implied vol — Delta — Gamma — Theta — Vega — Open interest 7 OI effective date Sep 10, 2026 Model this call Put · $5.5 In the money Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.443 UTC Last $2.15 Breakeven $3.35 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 10, 2026 Model this put
1.3k	5	—	—	$0.00	$0.15	$0.03		$2.58	$2.45	$2.75	—	—	2	14
Call · $6 Daily-bar session Sep 2, 2026 Quote as of 2026-09-11 19:59:59.439 UTC Last $0.03 Breakeven $6.03 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1.3k OI effective date Sep 10, 2026 Model this call Put · $6 In the money Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.420 UTC Last $2.58 Breakeven $3.42 Implied vol — Delta — Gamma — Theta — Vega — Open interest 14 OI effective date Sep 10, 2026 Model this put
—	—	—	—	$0.00	$0.15	—		$2.52	$2.95	$3.30	—	—	2	—
Call · $6.5 Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.655 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $6.5 In the money Daily-bar session Sep 9, 2026 Quote as of 2026-09-11 19:59:24.285 UTC Last $2.52 Breakeven $3.98 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
129	140	—	—	$0.00	$0.10	$0.05		$3.83	$3.40	$3.80	—	—	1	2
Call · $7 Daily-bar session Sep 3, 2026 Quote as of 2026-09-11 19:59:59.434 UTC Last $0.05 Breakeven $7.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 129 OI effective date Sep 10, 2026 Model this call Put · $7 In the money Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:47.558 UTC Last $3.83 Breakeven $3.17 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 10, 2026 Model this put
—	—	—	—	$0.00	$0.10	—		$4.10	$3.90	$4.30	—	—	2	—
Call · $7.5 Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.427 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $7.5 In the money Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:45.061 UTC Last $4.10 Breakeven $3.40 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
369	149	—	—	$0.00	$0.10	$0.06		$4.63	$4.30	$4.90	—	—	1	1
Call · $8 Daily-bar session Aug 7, 2026 Quote as of 2026-09-11 19:59:59.421 UTC Last $0.06 Breakeven $8.06 Implied vol — Delta — Gamma — Theta — Vega — Open interest 369 OI effective date Sep 10, 2026 Model this call Put · $8 In the money Daily-bar session Sep 10, 2026 Quote as of 2026-09-11 19:59:10.846 UTC Last $4.63 Breakeven $3.37 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 10, 2026 Model this put
42	5	—	—	$0.00	$0.10	$0.05		$5.10	$5.30	$6.10	—	—	2	2
Call · $9 Daily-bar session Jul 27, 2026 Quote as of 2026-09-11 19:59:50.818 UTC Last $0.05 Breakeven $9.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 42 OI effective date Sep 10, 2026 Model this call Put · $9 In the money Daily-bar session Sep 2, 2026 Quote as of 2026-09-11 19:59:54.055 UTC Last $5.10 Breakeven $3.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 10, 2026 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 11, 2026; 6 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 1921865 CUSIP 00218A105 13F (30d) 58 filings 58 filers Visit website Investor relations