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MRK
Merck & Co., Inc.
stock NYSE

Market Open

Jul 22, 2026 1:26:00 PM EDT

127.86USD+1.267%(+1.60)3,229,548

120.28Bid 127.95Ask 7.67Spread

Pre-market

Jul 22, 2026 9:27:30 AM EDT

127.06USD+0.634%(+0.80)3,101

After-hours

Jul 21, 2026 4:24:30 PM EDT

126.26USD0.000%(0.00)0

OverviewOptionsHistoricalDark Pool PrintsShortsMore

MRK Volume Jul 22, 2026 1:05:02 PM EDT

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	53.28	1,647,633	41.49
NYSE	11.59	358,359	31.25
Nasdaq GSM	11.46	354,550	9.18
NYSE Arca	5.90	182,472	4.38
Cboe BZX	5.60	173,307	3.32
IEX	4.08	126,287	3.72
Cboe EDGX	3.61	111,496	1.76
MEMX	1.21	37,551	0.80
Cboe EDGA	1.10	34,108	0.44
Cboe BYX	0.88	27,137	0.25
Nasdaq BX	0.52	15,955	0.20
NYSE National	0.35	10,866	0.15
CHX	0.16	4,936	2.68
MIAX Pearl	0.16	4,843	0.16
NYSE American	0.05	1,600	0.11
Nasdaq PHLX	0.04	1,181	0.09
24X National	0.01	375	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

0.28 servings per container

Serving size

11.19M

Calories

3.09M

% Day

% Avg

Off Exchange¹ 2M

53.28%

41.49%

NYSE 358K

11.59%

31.25%

Nasdaq GSM 355K

11.46%

9.18%

NYSE Arca 182K

5.90%

4.38%

Cboe BZX 173K

5.60%

3.32%

IEX 126K

4.08%

3.72%

Cboe EDGX 111K

3.61%

1.76%

MEMX 38K

1.21%

0.80%

Cboe EDGA 34K

1.10%

0.44%

Cboe BYX 27K

0.88%

0.25%

Nasdaq BX 16K

0.52%

0.20%

NYSE National 11K

0.35%

0.15%

CHX 5K

0.16%

2.68%

MIAX Pearl 5K

0.16%

NYSE American 2K

0.05%

0.11%

Nasdaq PHLX 1K

0.04%

0.09%

24X National 375

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 1,647,633, which is 53.28% of today's total volume.
Today's Lit volume is 1,445,023, which is 46.72%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 41.49%.
The average Lit volume has been 58.51%.

MRK Volume by Exchange

Off Exchange

NYSE

Nasdaq GSM

NYSE Arca

Cboe BZX

IEX

Cboe EDGX

MEMX

Cboe EDGA

Cboe BYX

Nasdaq BX