CLBK · Columbia Financial, Inc./MD/

Track CLBK — free

$11.81 +0.05 (+0.38%)

Market Cap

$3.17B

269.55M

Options Chain

Underlying $11.81 · today Options Calculator

Positioning

Aug 21, 2026 · expires today · 50 contracts · mixed snapshot sessions · Jul 21, 2026–Aug 21, 2026; 22 unknown

Put / call OI

—

dated and unknown snapshot sessions

Open interest

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dated and unknown snapshot sessions

Volume

—

dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 0d Sep 18 28d Oct 16 56d Dec 18 119d Jan 15 147d Mar 19 210d Apr 16 238d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
100	100	0%	1	$7.50		—	—	—	—	0
Call · $2.5 In the money Snapshot session Jul 22, 2026 Last $7.50 Breakeven $10.00 Implied vol 0% Delta 1 ≈100% ITM Gamma 0.018 Theta 0 Vega 0 Open interest 100 Model this call Put · $2.5 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	6	0%	1	$5.00		—	—	—	—	0
Call · $5 In the money Snapshot session Jul 22, 2026 Last $5.00 Breakeven $10.00 Implied vol 0% Delta 1 ≈100% ITM Gamma 0.005 Theta 0 Vega 0 Open interest 0 Model this call Put · $5 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	0%	1	—		—	0	0%	—	0
Call · $7.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0% Delta 1 ≈100% ITM Gamma 0.003 Theta -0.001 Vega 0 Open interest 0 Model this call Put · $7.5 Snapshot session Unknown Last — Breakeven — Implied vol 0% Delta 0 ≈0% ITM Gamma 0 Theta 0 Vega 0 Open interest 0 Model this put
0	—	0%	1	—		—	0	0%	—	0
Call · $10 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0% Delta 1 ≈100% ITM Gamma -0.001 Theta -0.001 Vega 0 Open interest 0 Model this call Put · $10 Snapshot session Unknown Last — Breakeven — Implied vol 0% Delta 0 ≈0% ITM Gamma 0 Theta 0 Vega 0 Open interest 0 Model this put
Underlying $11.81
776	10	0%	0	$13.50		—	—	—	—	832
Call · $12.5 Snapshot session Aug 13, 2026 Last $13.50 Breakeven $26.00 Implied vol 0% Delta 0 ≈0% ITM Gamma 0 Theta 0 Vega 0 Open interest 776 Model this call Put · $12.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 832 Model this put
30	—	0%	0	—		—	—	—	—	652
Call · $15 Snapshot session Unknown Last — Breakeven — Implied vol 0% Delta 0 ≈0% ITM Gamma 0 Theta 0 Vega 0 Open interest 30 Model this call Put · $15 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 652 Model this put
0	—	0%	0	—		—	—	—	—	476
Call · $17.5 Snapshot session Unknown Last — Breakeven — Implied vol 0% Delta 0 ≈0% ITM Gamma 0 Theta 0 Vega 0 Open interest 0 Model this call Put · $17.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 476 Model this put
3.2k	40	0%	0	$5.45		$0.07	—	—	5	1.7k
Call · $20 Snapshot session Aug 21, 2026 Last $5.45 Breakeven $25.45 Implied vol 0% Delta 0 ≈0% ITM Gamma 0 Theta 0 Vega 0 Open interest 3.2k Model this call Put · $20 In the money Snapshot session Aug 14, 2026 Last $0.07 Breakeven $19.93 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1.7k Model this put
58	8	0%	0	$3.25		$0.12	—	—	5	399
Call · $22.5 Snapshot session Aug 21, 2026 Last $3.25 Breakeven $25.75 Implied vol 0% Delta 0 ≈0% ITM Gamma 0 Theta 0 Vega 0 Open interest 58 Model this call Put · $22.5 In the money Snapshot session Aug 14, 2026 Last $0.12 Breakeven $22.38 Implied vol — Delta — Gamma — Theta — Vega — Open interest 399 Model this put
4k	376	0%	0	$0.80		$1.70	—	—	2	39
Call · $25 Snapshot session Aug 20, 2026 Last $0.80 Breakeven $25.80 Implied vol 0% Delta 0 ≈0% ITM Gamma 0 Theta 0 Vega 0 Open interest 4k Model this call Put · $25 In the money Snapshot session Jul 31, 2026 Last $1.70 Breakeven $23.30 Implied vol — Delta — Gamma — Theta — Vega — Open interest 39 Model this put
572	3	—	—	$0.05		—	—	—	—	0
Call · $30 Snapshot session Jul 23, 2026 Last $0.05 Breakeven $30.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 572 Model this call Put · $30 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put

About this data

Each contract's last price, volume, greeks, implied volatility and open interest belongs to the snapshot session shown in its details; unknown means the provider omitted the timestamp. This chain has mixed snapshot sessions · Jul 21, 2026–Aug 21, 2026; 22 unknown. Cross-contract positioning totals are shown only when every returned row has the same known session. Bid and ask are not included on this plan.

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 2115119 CUSIP 197914104 13F (30d) 96 filings 96 filers Visit website