CMP · Compass Minerals International Inc · Options Chain

Track CMP — free

$25.63 -0.16 (-0.62%) At close · Sep 9

Russell 2000 member Rebalance outlook locked

Market Cap

$1.08B

41.98M

Options Chain

Underlying $25.63 · at close Sep 9, 2026 Options Calculator

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Positioning

Sep 18, 2026 · 8 days to expiry · 30 contracts · mixed daily-bar sessions · Jun 22, 2026–Sep 9, 2026; 9 unknown

Put / call OI

0.29

Call-heavy positioning

Open interest

1,137

as of Sep 8, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$25.00

$0.63 below spot

ATM implied vol

47%

market's expected move

Open interest by strike

Calls Puts

12.5

17.5

22.5

27.5

32.5

37.5

42.5

47.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 8d Oct 16 36d Dec 18 99d Mar 19 190d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$12.40	$15.00	—		—	$0.00	$0.95	—	—	—	—
Call · $12.5 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:59.259 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $12.5 Daily-bar session Unknown Quote as of 2026-09-09 19:59:35.871 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
3	3	—	—	$9.80	$12.50	$14.10		—	$0.00	$2.15	—	—	—	—
Call · $15 In the money Daily-bar session Jul 8, 2026 Quote as of 2026-09-09 19:59:59.259 UTC Last $14.10 Breakeven $29.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 OI effective date Sep 8, 2026 Model this call Put · $15 Daily-bar session Unknown Quote as of 2026-09-09 19:59:35.600 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
1	1	—	—	$6.60	$9.50	$12.25		$0.33	$0.00	$0.50	—	—	5	6
Call · $17.5 In the money Daily-bar session Jul 27, 2026 Quote as of 2026-09-09 19:59:59.259 UTC Last $12.25 Breakeven $29.75 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 8, 2026 Model this call Put · $17.5 Daily-bar session Aug 6, 2026 Quote as of 2026-09-09 19:59:59.246 UTC Last $0.33 Breakeven $17.17 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 OI effective date Sep 8, 2026 Model this put
3	2	—	—	$5.30	$6.90	$5.70		$0.05	$0.00	$1.05	—	—	72	77
Call · $20 In the money Daily-bar session Sep 8, 2026 Quote as of 2026-09-09 19:57:30.869 UTC Last $5.70 Breakeven $25.70 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 OI effective date Sep 8, 2026 Model this call Put · $20 Daily-bar session Sep 4, 2026 Quote as of 2026-09-09 19:59:56.141 UTC Last $0.05 Breakeven $19.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 77 OI effective date Sep 8, 2026 Model this put
6	2	106.2%	0.819	$2.85	$4.30	$5.46		$0.20	$0.00	$0.25	—	—	5	149
Call · $22.5 In the money Daily-bar session Aug 7, 2026 Quote as of 2026-09-09 19:59:59.356 UTC Last $5.46 Breakeven $27.96 Implied vol 106.2% Delta 0.819 ≈82% ITM Gamma 0.065 Theta -0.068 Vega 0.01 Open interest 6 OI effective date Sep 8, 2026 Model this call Put · $22.5 Daily-bar session Sep 2, 2026 Quote as of 2026-09-09 19:59:34.633 UTC Last $0.20 Breakeven $22.30 Implied vol — Delta — Gamma — Theta — Vega — Open interest 149 OI effective date Sep 8, 2026 Model this put
330	2	47%	0.657	$0.85	$1.30	$1.17		$0.80	$0.00	$0.65	—	—	1	12
Call · $25 In the money Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:59:58.281 UTC Last $1.17 Breakeven $26.17 Implied vol 47% Delta 0.657 ≈66% ITM Gamma 0.206 Theta -0.043 Vega 0.014 Open interest 330 OI effective date Sep 8, 2026 Model this call Put · $25 Daily-bar session Sep 3, 2026 Quote as of 2026-09-09 19:59:47.717 UTC Last $0.80 Breakeven $24.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 12 OI effective date Sep 8, 2026 Model this put
Underlying $25.63
61	1	54%	0.203	$0.05	$0.40	$0.21		$3.15	$1.15	$3.40	-0.728	71.2%	2	10
Call · $27.5 Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:59:19.255 UTC Last $0.21 Breakeven $27.71 Implied vol 54% Delta 0.203 ≈20% ITM Gamma 0.138 Theta -0.037 Vega 0.011 Open interest 61 OI effective date Sep 8, 2026 Model this call Put · $27.5 In the money Daily-bar session Aug 21, 2026 Quote as of 2026-09-09 19:59:59.457 UTC Last $3.15 Breakeven $24.35 Implied vol 71.2% Delta -0.728 ≈73% ITM Gamma 0.123 Theta -0.054 Vega 0.013 Open interest 10 OI effective date Sep 8, 2026 Model this put
250	11	—	—	$0.00	$0.15	$0.12		$5.09	$3.20	$5.00	—	—	4	5
Call · $30 Daily-bar session Sep 2, 2026 Quote as of 2026-09-09 13:46:49.001 UTC Last $0.12 Breakeven $30.12 Implied vol — Delta — Gamma — Theta — Vega — Open interest 250 OI effective date Sep 8, 2026 Model this call Put · $30 In the money Daily-bar session Sep 2, 2026 Quote as of 2026-09-09 19:59:59.393 UTC Last $5.09 Breakeven $24.91 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 OI effective date Sep 8, 2026 Model this put
44	2	—	—	$0.00	$2.15	$0.05		$8.33	$5.80	$7.50	—	—	1	—
Call · $32.5 Daily-bar session Sep 2, 2026 Quote as of 2026-09-09 19:59:59.533 UTC Last $0.05 Breakeven $32.55 Implied vol — Delta — Gamma — Theta — Vega — Open interest 44 OI effective date Sep 8, 2026 Model this call Put · $32.5 In the money Daily-bar session Aug 6, 2026 Quote as of 2026-09-09 19:59:59.913 UTC Last $8.33 Breakeven $24.17 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
78	2	—	—	$0.00	$2.15	$0.02		$10.11	$8.30	$9.80	—	—	1	—
Call · $35 Daily-bar session Aug 27, 2026 Quote as of 2026-09-09 19:59:59.259 UTC Last $0.02 Breakeven $35.02 Implied vol — Delta — Gamma — Theta — Vega — Open interest 78 OI effective date Sep 8, 2026 Model this call Put · $35 In the money Daily-bar session Sep 2, 2026 Quote as of 2026-09-09 19:59:59.259 UTC Last $10.11 Breakeven $24.89 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
68	1	—	—	$0.00	$1.10	$0.35		—	$10.30	$12.70	—	—	—	—
Call · $37.5 Daily-bar session Jul 31, 2026 Quote as of 2026-09-09 19:59:59.259 UTC Last $0.35 Breakeven $37.85 Implied vol — Delta — Gamma — Theta — Vega — Open interest 68 OI effective date Sep 8, 2026 Model this call Put · $37.5 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:59.259 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.70	—		—	$12.80	$15.20	—	—	—	—
Call · $40 Daily-bar session Unknown Quote as of 2026-09-09 19:59:59.259 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 2026-09-09 19:59:59.259 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
26	25	—	—	$0.00	$2.15	$0.28		—	$15.30	$17.70	—	—	—	—
Call · $42.5 Daily-bar session Jun 22, 2026 Quote as of 2026-09-09 19:59:59.280 UTC Last $0.28 Breakeven $42.78 Implied vol — Delta — Gamma — Theta — Vega — Open interest 26 OI effective date Sep 8, 2026 Model this call Put · $42.5 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:49.298 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
6	1	—	—	$0.00	$2.15	$0.10		—	$17.80	$20.20	—	—	—	—
Call · $45 Daily-bar session Aug 24, 2026 Quote as of 2026-09-09 19:59:36.500 UTC Last $0.10 Breakeven $45.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 OI effective date Sep 8, 2026 Model this call Put · $45 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:49.298 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
2	2	—	—	$0.00	$2.15	$0.05		—	$20.00	$23.60	—	—	—	—
Call · $47.5 Daily-bar session Aug 24, 2026 Quote as of 2026-09-09 19:59:36.700 UTC Last $0.05 Breakeven $47.55 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 8, 2026 Model this call Put · $47.5 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:55:02.681 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 · Jun 22, 2026–Sep 9, 2026; 9 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 1227654 CUSIP 20451N101 13F (30d) 156 filings 155 filers Visit website Investor relations