Dark

MRK
Merck & Co., Inc.
stock NYSE

At Close

May 14, 2025 3:59:30 PM EDT

73.50USD-4.085%(-3.13)23,625,183

73.44Bid 73.86Ask 0.42Spread

Pre-market

May 14, 2025 9:28:30 AM EDT

77.79USD+1.514%(+1.16)77,918

After-hours

May 14, 2025 4:23:30 PM EDT

73.42USD-0.109%(-0.08)413,356

OverviewOptionsHistoricalExchange VolumeShortsMore

MRK Volume May 14, 2025

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Exchange	Day%	Volume	30D%
Off Exchange¹	42.50	9,965,801	44.61
NYSE	20.44	4,792,244	22.71
Nasdaq GSM	13.13	3,078,469	11.06
NYSE Arca	5.72	1,340,396	5.02
Cboe BZX	5.31	1,245,044	5.20
Cboe EDGX	3.50	821,379	2.66
IEX	3.20	749,771	3.91
CHX	2.81	658,188	0.94
MEMX	1.53	358,137	1.79
MIAX Pearl	0.67	156,510	0.39
Cboe BYX	0.39	91,238	0.53
Nasdaq PHLX	0.25	57,559	0.18
Cboe EDGA	0.23	53,141	0.48
Nasdaq BX	0.18	41,438	0.27
NYSE National	0.10	23,397	0.14
NYSE American	0.07	16,247	0.11
LTSE	0.00	325	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

1.39 servings per container

Serving size

16.89M

Calories

23.45M

% Day

% Avg

Off Exchange¹ 10M

42.50%

44.61%

NYSE 5M

20.44%

22.71%

Nasdaq GSM 3M

13.13%

11.06%

NYSE Arca 1M

5.72%

5.02%

Cboe BZX 1M

5.31%

5.20%

Cboe EDGX 821K

3.50%

2.66%

IEX 750K

3.20%

3.91%

CHX 658K

2.81%

0.94%

MEMX 358K

1.53%

1.79%

MIAX Pearl 157K

0.67%

0.39%

Cboe BYX 91K

0.39%

0.53%

Nasdaq PHLX 58K

0.25%

0.18%

Cboe EDGA 53K

0.23%

0.48%

Nasdaq BX 41K

0.18%

0.27%

NYSE National 23K

0.10%

0.14%

NYSE American 16K

0.07%

0.11%

LTSE 325

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 9,965,801, which is 42.50% of today's total volume.
Today's Lit volume is 13,483,483, which is 57.50%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 44.61%.
The average Lit volume has been 55.39%.

MRK Volume by Exchange

Off Exchange

NYSE

Nasdaq GSM

NYSE Arca

Cboe BZX

Cboe EDGX

IEX

CHX

MEMX

MIAX Pearl

Cboe BYX