Dark

TMO
Thermo Fisher Scientific, Inc.
stock NYSE

At Close

Sep 29, 2026 3:59:55 PM EDT

679.96USD+0.200%(+1.36)1,745,590

680.55Bid 716.85Ask 36.30Spread

Pre-market

Sep 29, 2026 9:18:30 AM EDT

676.09USD-0.370%(-2.51)110

After-hours

Sep 29, 2026 4:15:30 PM EDT

679.00USD-0.141%(-0.96)978

OverviewOptionsHistoricalDark Pool PrintsShortsMore

TMO Volume Sep 29, 2026 3:55:03 PM EDT

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	53.70	640,045	48.37
NYSE	10.42	124,215	26.46
Nasdaq GSM	8.08	96,313	7.50
IEX	7.19	85,703	5.68
CHX	5.81	69,192	0.72
Cboe BZX	4.60	54,827	3.96
NYSE Arca	3.77	44,882	2.84
Cboe EDGX	2.34	27,868	1.48
Cboe BYX	0.95	11,377	0.68
MEMX	0.87	10,425	0.63
Nasdaq BX	0.61	7,297	0.50
NYSE National	0.60	7,101	0.36
Cboe EDGA	0.55	6,597	0.38
NYSE American	0.20	2,422	0.12
Nasdaq PHLX	0.14	1,634	0.13
MIAX Pearl	0.10	1,181	0.16
Texas Stock Exchange LLC	0.05	620	0.01
24X National	0.01	123	0.01

chartexchange.com

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

TMO Nutrition Facts

0.58 servings per container

Serving size

2.04M

Calories

1.19M

% Day

% Avg

Off Exchange¹ 640K

53.70%

48.37%

NYSE 124K

10.42%

26.46%

Nasdaq GSM 96K

8.08%

7.50%

IEX 86K

7.19%

5.68%

CHX 69K

5.81%

0.72%

Cboe BZX 55K

4.60%

3.96%

NYSE Arca 45K

3.77%

2.84%

Cboe EDGX 28K

2.34%

1.48%

Cboe BYX 11K

0.95%

0.68%

MEMX 10K

0.87%

0.63%

Nasdaq BX 7K

0.61%

0.50%

NYSE National 7K

0.60%

0.36%

Cboe EDGA 7K

0.55%

0.38%

NYSE American 2K

0.20%

0.12%

Nasdaq PHLX 2K

0.14%

0.13%

MIAX Pearl 1K

0.10%

0.16%

Texas Stock Exchange LLC 620

0.05%

0.01%

24X National 123

0.01%

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

chartexchange.com

TMO Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 640,045, which is 53.70% of today's total volume.
Today's Lit volume is 551,777, which is 46.30%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 48.37%.
The average Lit volume has been 51.63%.

TMO Volume by Exchange

Off Exchange

NYSE

Nasdaq GSM

IEX

CHX

Cboe BZX

NYSE Arca

Cboe EDGX

Cboe BYX

MEMX

Nasdaq BX