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COLB
Columbia Banking Systems Inc
stock NASDAQ

At Close

Aug 14, 2026 3:59:59 PM EDT

32.70USD+0.801%(+0.26)2,543,430

0.00Bid 0.00Ask 0.00Spread

Pre-market

0.00USD-100.000%(-32.44)0

After-hours

Aug 14, 2026 4:07:30 PM EDT

32.73USD+0.092%(+0.03)492

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Aug 21, 2026 Sep 18, 2026 Nov 20, 2026 Feb 19, 2027

ITM/OTM for Aug 21, 2026View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
445	1,650	70	651

COLB Aug 21, 2026 Exp. - Volume by Strike

Puts

Calls

COLB Aug 21, 2026 Exp. - Open Interest by Strike

Puts

Calls

COLB Aug 21, 2026 Exp. - Max Pain @ $30.00

Puts

Calls

COLB Aug 21, 2026 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
40.00 C	0.08	-20.00%	1	117	07-23	COLB260821C00040000
35.00 C	0.01	-90.00%	10	1,533	08-13	COLB260821C00035000
30.00 C	2.59	+15.11%	9	365	08-13	COLB260821C00030000
25.00 C	7.47	+20.48%	1	71	08-13	COLB260821C00025000
22.50 C	7.50	+22.15%	1	2	05-08	COLB260821C00022500
20.00 C	11.54	+13.92%	1	1	06-24	COLB260821C00020000
17.50 C	11.54	0%	2	1	01-29	COLB260821C00017500
15.00 C	16.00	0%	12	5	02-12	COLB260821C00015000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
40.00 P	7.50	+10.29%	17	34	07-20	COLB260821P00040000
35.00 P	3.30	-5.71%	1	36	07-10	COLB260821P00035000
30.00 P	0.20	-20.00%	5	427	08-07	COLB260821P00030000
25.00 P	0.05	-50.00%	10	205	07-27	COLB260821P00025000
22.50 P	0.10	-83.33%	10	2	07-13	COLB260821P00022500
20.00 P	0.50	-23.08%	2	8	02-04	COLB260821P00020000
17.50 P	0.15	+7.14%	1	9	05-21	COLB260821P00017500
15.00 P	0	0%	0			COLB260821P00015000

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