CASS · Cass Information Systems Inc · Options Chain

Track CASS — free

$55.40 +0.06 (+0.11%) At close · Sep 9

Russell 2000 member Rebalance outlook locked

Market Cap

$707.16M

12.81M

Options Chain

Underlying $55.40 · at close Sep 9, 2026 Options Calculator

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Positioning

Sep 18, 2026 · 8 days to expiry · 20 contracts · mixed daily-bar sessions · Aug 3, 2026; 19 unknown

Put / call OI

—

open-interest date unavailable

Open interest

—

open-interest date unavailable

Volume

—

dated and unknown daily-bar sessions

ATM implied vol

71.3%

market's expected move

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
—	—	—	—	$31.20	$35.50	—		—	$0.00	$5.00	—	—	—	—
Call · $22.5 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:56:08.808 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $22.5 Daily-bar session Unknown Quote as of 2026-09-09 19:59:34.477 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$28.70	$33.00	—		—	$0.00	$5.00	—	—	—	—
Call · $25 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:56:08.808 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 2026-09-09 19:59:34.463 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$23.80	$28.00	—		—	$0.00	$5.00	—	—	—	—
Call · $30 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:56:08.808 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 2026-09-09 19:59:34.379 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$18.60	$23.00	—		—	$0.00	$0.20	—	—	—	—
Call · $35 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:56:08.808 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $35 Daily-bar session Unknown Quote as of 2026-09-09 19:59:02.281 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$13.80	$18.00	—		—	$0.00	$5.00	—	—	—	—
Call · $40 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:56:08.808 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $40 Daily-bar session Unknown Quote as of 2026-09-09 19:59:34.266 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	3	112.3%	0.91	$8.70	$13.00	$13.00		—	$0.00	$5.00	—	—	—	—
Call · $45 In the money Daily-bar session Aug 3, 2026 Quote as of 2026-09-09 19:56:08.808 UTC Last $13.00 Breakeven $58.00 Implied vol 112.3% Delta 0.91 ≈91% ITM Gamma 0.018 Theta -0.098 Vega 0.013 Open interest — OI effective date — Model this call Put · $45 Daily-bar session Unknown Quote as of 2026-09-09 19:59:34.178 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	75.3%	0.837	$4.00	$8.00	—		—	$0.00	$5.00	—	—	—	—
Call · $50 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:56:08.808 UTC Last — Breakeven — Implied vol 75.3% Delta 0.837 ≈84% ITM Gamma 0.04 Theta -0.099 Vega 0.02 Open interest — OI effective date — Model this call Put · $50 Daily-bar session Unknown Quote as of 2026-09-09 19:59:34.089 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	71.3%	0.551	$0.10	$5.00	—		—	$0.00	$5.00	—	—	—	—
Call · $55 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:59.738 UTC Last — Breakeven — Implied vol 71.3% Delta 0.551 ≈55% ITM Gamma 0.068 Theta -0.147 Vega 0.032 Open interest — OI effective date — Model this call Put · $55 Daily-bar session Unknown Quote as of 2026-09-09 19:59:33.990 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
Underlying $55.40
—	—	—	—	$0.00	$5.00	—		—	$2.50	$6.50	—	—	—	—
Call · $60 Daily-bar session Unknown Quote as of 2026-09-09 19:59:34.078 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 2026-09-09 19:59:34.105 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$5.00	—		—	$7.50	$11.50	—	—	—	—
Call · $65 Daily-bar session Unknown Quote as of 2026-09-09 19:59:34.175 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 2026-09-09 19:59:34.263 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; 19 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.

Key facts CIK 708781 CUSIP 14808P109 13F (30d) 102 filings 102 filers Visit website Investor relations