Dark

MRK
Merck & Co., Inc.
stock NYSE

At Close

Sep 4, 2026 3:59:58 PM EDT

150.33USD-1.319%(-2.01)4,397,468

0.00Bid 0.00Ask 0.00Spread

Pre-market

Sep 4, 2026 9:24:30 AM EDT

151.36USD-0.643%(-0.98)5,336

After-hours

Sep 4, 2026 4:35:30 PM EDT

150.69USD+0.240%(+0.36)1,016,522

OverviewOptionsHistoricalExchange VolumeShortsMore

MRK Volume Sep 4, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	51.05	2,244,516	47.82
NYSE	28.67	1,260,535	26.55
Nasdaq GSM	7.30	321,061	9.21
IEX	3.55	156,251	3.72
NYSE Arca	3.26	143,258	3.95
Cboe BZX	3.07	134,910	3.61
Cboe EDGX	1.17	51,388	1.69
MEMX	0.58	25,709	0.65
Cboe BYX	0.31	13,559	0.26
Cboe EDGA	0.24	10,581	0.36
NYSE National	0.19	8,226	0.13
NYSE American	0.15	6,766	0.11
Nasdaq BX	0.13	5,911	0.18
MIAX Pearl	0.13	5,703	0.15
Nasdaq PHLX	0.08	3,312	0.14
CHX	0.07	2,972	1.44
24X National	0.03	1,489	0.01
Texas Stock Exchange LLC	0.01	582	0.01
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.

MRK Nutrition Facts

0.43 servings per container

Serving size

10.19M

Calories

4.40M

% Day

% Avg

Off Exchange¹ 2M

51.05%

47.82%

NYSE 1M

28.67%

26.55%

Nasdaq GSM 321K

7.30%

9.21%

IEX 156K

3.55%

3.72%

NYSE Arca 143K

3.26%

3.95%

Cboe BZX 135K

3.07%

3.61%

Cboe EDGX 51K

1.17%

1.69%

MEMX 26K

0.58%

0.65%

Cboe BYX 14K

0.31%

0.26%

Cboe EDGA 11K

0.24%

0.36%

NYSE National 8K

0.19%

0.13%

NYSE American 7K

0.15%

0.11%

Nasdaq BX 6K

0.13%

0.18%

MIAX Pearl 6K

0.13%

0.15%

Nasdaq PHLX 3K

0.08%

0.14%

CHX 3K

0.07%

1.44%

24X National 1K

0.03%

0.01%

Texas Stock Exchange LLC 582

0.01%

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

MRK Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 2,244,516, which is 51.05% of today's total volume.
Today's Lit volume is 2,152,213, which is 48.95%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 47.82%.
The average Lit volume has been 52.18%.

MRK Volume by Exchange

Off Exchange

NYSE

Nasdaq GSM

IEX

NYSE Arca

Cboe BZX

Cboe EDGX

MEMX

Cboe BYX

Cboe EDGA

NYSE National