Dark

CMCSA
Comcast Corp
stock NASDAQ

At Close

Dec 19, 2025 3:59:59 PM EST

29.56USD-2.346%(-0.71)89,637,782

28.50Bid 31.18Ask 2.68Spread

Pre-market

Dec 19, 2025 9:28:30 AM EST

30.25USD-0.066%(-0.02)121,993

After-hours

Dec 19, 2025 4:56:30 PM EST

29.55USD-0.034%(-0.01)2,493,879

OverviewOptionsHistoricalExchange VolumeShortsMore

CMCSA Volume Dec 19, 2025

[NF]

Exchange	Day%	Volume	30D%
Nasdaq GSM	52.63	48,134,528	29.56
Off Exchange¹	33.51	30,650,243	47.33
NYSE Arca	3.60	3,289,815	6.52
IEX	2.46	2,247,519	4.87
Cboe BZX	1.86	1,700,293	3.25
CHX	1.77	1,614,912	1.04
Cboe EDGX	1.49	1,363,570	2.33
NYSE	0.88	807,062	1.68
MEMX	0.64	581,920	0.96
MIAX Pearl	0.42	386,430	0.46
NYSE National	0.19	177,498	0.50
Cboe BYX	0.18	167,057	0.54
Cboe EDGA	0.18	164,335	0.55
Nasdaq PHLX	0.07	66,403	0.18
NYSE American	0.06	54,678	0.07
Nasdaq BX	0.05	46,071	0.16

chartexchange.com

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

CMCSA Nutrition Facts

2.53 servings per container

Serving size

36.17M

Calories

91.45M

% Day

% Avg

Nasdaq GSM 48M

52.63%

29.56%

Off Exchange¹ 31M

33.51%

47.33%

NYSE Arca 3M

3.60%

6.52%

IEX 2M

2.46%

4.87%

Cboe BZX 2M

1.86%

3.25%

CHX 2M

1.77%

1.04%

Cboe EDGX 1M

1.49%

2.33%

NYSE 807K

0.88%

1.68%

MEMX 582K

0.64%

0.96%

MIAX Pearl 386K

0.42%

0.46%

NYSE National 177K

0.19%

0.50%

Cboe BYX 167K

0.18%

0.54%

Cboe EDGA 164K

0.18%

0.55%

Nasdaq PHLX 66K

0.07%

0.18%

NYSE American 55K

0.06%

0.07%

Nasdaq BX 46K

0.05%

0.16%

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

chartexchange.com

CMCSA Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 30,650,243, which is 33.51% of today's total volume.
Today's Lit volume is 60,802,091, which is 66.49%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 47.33%.
The average Lit volume has been 52.67%.

CMCSA Volume by Exchange

Nasdaq GSM

Off Exchange

NYSE Arca

IEX

Cboe BZX

CHX

Cboe EDGX

NYSE

MEMX

MIAX Pearl

NYSE National