Dark

COLB
Columbia Banking Systems Inc
stock NASDAQ

At Close

Jul 2, 2026 3:59:58 PM EDT

31.73USD-2.399%(-0.78)3,357,428

30.03Bid 33.27Ask 3.24Spread

Pre-market

0.00USD-100.000%(-32.51)0

After-hours

Jul 2, 2026 4:12:30 PM EDT

31.73USD0.000%(0.00)684,258

OverviewOptionsHistoricalExchange VolumeShortsMore

COLB Volume Jul 2, 2026

[ < ]

Exchange	Day%	Volume	30D%
Nasdaq GSM	37.89	1,301,496	40.97
Off Exchange¹	36.90	1,267,350	30.46
IEX	8.04	276,026	7.42
NYSE Arca	6.93	238,044	7.90
Cboe BZX	3.58	122,906	4.18
Cboe EDGX	2.78	95,590	3.76
NYSE	1.18	40,390	1.57
MEMX	0.81	27,810	1.14
Cboe BYX	0.69	23,840	0.66
Cboe EDGA	0.30	10,341	0.58
Nasdaq BX	0.24	8,306	0.16
MIAX Pearl	0.21	7,298	0.47
NYSE National	0.19	6,615	0.42
NYSE American	0.08	2,737	0.13
24X National	0.07	2,520	0.03
Nasdaq PHLX	0.06	2,026	0.10
CHX	0.04	1,468	0.06
LTSE	0.00	0	0.00

chartexchange.com

¹ A) Dark Pool or Off Exchange? B) Venues explained. C) All trades that update volume from the CTA.

COLB Nutrition Facts

1.17 servings per container

Serving size

2.94M

Calories

3.43M

% Day

% Avg

Nasdaq GSM 1M

37.89%

40.97%

Off Exchange¹ 1M

36.90%

30.46%

IEX 276K

8.04%

7.42%

NYSE Arca 238K

6.93%

7.90%

Cboe BZX 123K

3.58%

4.18%

Cboe EDGX 96K

2.78%

3.76%

NYSE 40K

1.18%

1.57%

MEMX 28K

0.81%

1.14%

Cboe BYX 24K

0.69%

0.66%

Cboe EDGA 10K

0.30%

0.58%

Nasdaq BX 8K

0.24%

0.16%

MIAX Pearl 7K

0.21%

0.47%

NYSE National 7K

0.19%

0.42%

NYSE American 3K

0.08%

0.13%

24X National 3K

0.07%

0.03%

Nasdaq PHLX 2K

0.06%

0.10%

CHX 1K

0.04%

0.06%

LTSE 0

0.00%

¹ A) Dark Pool or Off Exchange? B) Venues explained. C) All trades that update volume from the CTA.

chartexchange.com

COLB Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 1,267,350, which is 36.90% of today's total volume.
Today's Lit volume is 2,167,413, which is 63.10%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 30.46%.
The average Lit volume has been 69.54%.

COLB Volume by Exchange

Nasdaq GSM

Off Exchange

IEX

NYSE Arca

Cboe BZX

Cboe EDGX

NYSE

MEMX

Cboe BYX

Cboe EDGA

Nasdaq BX