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CCOI
Cogent Communications Holdings, Inc.
stock NASDAQ

At Close

Sep 28, 2026 3:59:56 PM EDT

7.43USD-3.381%(-0.26)1,717,459

6.43Bid 8.52Ask 2.09Spread

Pre-market

Sep 28, 2026 9:27:30 AM EDT

7.63USD-0.780%(-0.06)1,013

After-hours

Sep 28, 2026 4:59:30 PM EDT

7.44USD+0.135%(+0.01)75,555

OverviewOptionsHistoricalExchange VolumeShortsMore

CCOI Volume Sep 28, 2026

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Exchange	Day%	Volume	30D%
Off Exchange¹	40.73	699,404	39.80
Nasdaq GSM	34.83	598,215	37.63
IEX	7.10	121,892	5.16
NYSE Arca	4.74	81,465	6.37
Cboe BZX	3.85	66,035	3.49
NYSE	2.69	46,137	1.51
Cboe EDGX	2.34	40,133	2.48
MEMX	0.90	15,502	1.13
Cboe EDGA	0.79	13,573	0.42
Cboe BYX	0.58	9,919	0.57
CHX	0.44	7,529	0.13
Texas Stock Exchange LLC	0.34	5,891	0.33
MIAX Pearl	0.25	4,326	0.41
Nasdaq BX	0.25	4,265	0.20
NYSE National	0.13	2,201	0.15
NYSE American	0.03	492	0.10
24X National	0.01	200	0.01
Nasdaq PHLX	0.01	178	0.13
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.

CCOI Nutrition Facts

0.83 servings per container

Serving size

2.08M

Calories

1.72M

% Day

% Avg

Off Exchange¹ 699K

40.73%

39.80%

Nasdaq GSM 598K

34.83%

37.63%

IEX 122K

7.10%

5.16%

NYSE Arca 81K

4.74%

6.37%

Cboe BZX 66K

3.85%

3.49%

NYSE 46K

2.69%

1.51%

Cboe EDGX 40K

2.34%

2.48%

MEMX 16K

0.90%

1.13%

Cboe EDGA 14K

0.79%

0.42%

Cboe BYX 10K

0.58%

0.57%

CHX 8K

0.44%

0.13%

Texas Stock Exchange LLC 6K

0.34%

0.33%

MIAX Pearl 4K

0.25%

0.41%

Nasdaq BX 4K

0.25%

0.20%

NYSE National 2K

0.13%

0.15%

NYSE American 492

0.03%

0.10%

24X National 200

0.01%

Nasdaq PHLX 178

0.01%

0.13%

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

CCOI Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 699,404, which is 40.73% of today's total volume.
Today's Lit volume is 1,017,953, which is 59.27%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 39.80%.
The average Lit volume has been 60.20%.

CCOI Volume by Exchange

Off Exchange

Nasdaq GSM

IEX

NYSE Arca

Cboe BZX

NYSE

Cboe EDGX

MEMX

Cboe EDGA

Cboe BYX

CHX