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MKSI
MKS Inc. Common Stock
stock NASDAQ

At Close

Jul 18, 2025 3:59:59 PM EDT

104.62USD+0.654%(+0.68)657,081

104.61Bid 199.25Ask 94.64Spread

Pre-market

Jul 17, 2025 9:08:30 AM EDT

101.97USD-1.895%(-1.97)0

After-hours

Jul 18, 2025 4:04:30 PM EDT

105.69USD+1.023%(+1.07)11,034

OverviewOptionsHistoricalDark Pool LevelsShortsMore

MKSI Volume Jul 18, 2025

[NF]

Exchange	Day%	Volume	30D%
Nasdaq GSM	46.41	304,981	46.25
Off Exchange¹	30.90	203,050	33.50
IEX	6.29	41,351	5.21
NYSE Arca	4.56	29,943	4.08
Cboe BZX	3.87	25,422	3.87
Cboe EDGX	2.25	14,754	2.20
Cboe BYX	1.46	9,583	0.83
NYSE	1.35	8,881	1.27
MEMX	1.13	7,416	0.81
Nasdaq BX	0.53	3,465	0.46
Cboe EDGA	0.45	2,941	0.35
MIAX Pearl	0.38	2,497	0.29
NYSE National	0.20	1,300	0.29
NYSE American	0.12	814	0.19
Nasdaq PHLX	0.10	670	0.15
CHX	0.00	13	0.23
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.

MKSI Nutrition Facts

0.70 servings per container

Serving size

944.25K

Calories

657.08K

% Day

% Avg

Nasdaq GSM 305K

46.41%

46.25%

Off Exchange¹ 203K

30.90%

33.50%

IEX 41K

6.29%

5.21%

NYSE Arca 30K

4.56%

4.08%

Cboe BZX 25K

3.87%

Cboe EDGX 15K

2.25%

2.20%

Cboe BYX 10K

1.46%

0.83%

NYSE 9K

1.35%

1.27%

MEMX 7K

1.13%

0.81%

Nasdaq BX 3K

0.53%

0.46%

Cboe EDGA 3K

0.45%

0.35%

MIAX Pearl 2K

0.38%

0.29%

NYSE National 1K

0.20%

0.29%

NYSE American 814

0.12%

0.19%

Nasdaq PHLX 670

0.10%

0.15%

CHX 13

0.00%

0.23%

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

MKSI Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 203,050, which is 30.90% of today's total volume.
Today's Lit volume is 454,031, which is 69.10%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 33.50%.
The average Lit volume has been 66.50%.

MKSI Volume by Exchange

Nasdaq GSM

Off Exchange

IEX

NYSE Arca

Cboe BZX

Cboe EDGX

Cboe BYX

NYSE

MEMX

Nasdaq BX

Cboe EDGA