Dark

TMO
Thermo Fisher Scientific, Inc.
stock NYSE

At Close

Sep 29, 2026 3:59:55 PM EDT

679.96USD+0.200%(+1.36)1,745,972

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 4:23:30 PM EDT

681.50USD+0.226%(+1.54)1,078

OverviewOptionsHistoricalExchange VolumeShortsMore

TMO Volume Sep 29, 2026

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Exchange	Day%	Volume	30D%
Off Exchange¹	50.85	940,783	48.34
NYSE	22.04	407,797	26.64
Nasdaq GSM	6.43	118,921	7.46
IEX	5.44	100,683	5.64
CHX	3.81	70,423	0.72
Cboe BZX	3.80	70,251	3.95
NYSE Arca	2.89	53,449	2.83
Cboe EDGX	1.63	30,108	1.47
Cboe BYX	0.72	13,325	0.68
MEMX	0.64	11,912	0.63
NYSE National	0.53	9,748	0.36
Nasdaq BX	0.45	8,295	0.50
Cboe EDGA	0.42	7,805	0.38
NYSE American	0.14	2,670	0.12
Nasdaq PHLX	0.09	1,717	0.13
MIAX Pearl	0.07	1,259	0.16
Texas Stock Exchange LLC	0.04	649	0.01
24X National	0.01	163	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

0.91 servings per container

Serving size

2.04M

Calories

1.85M

% Day

% Avg

Off Exchange¹ 941K

50.85%

48.34%

NYSE 408K

22.04%

26.64%

Nasdaq GSM 119K

6.43%

7.46%

IEX 101K

5.44%

5.64%

CHX 70K

3.81%

0.72%

Cboe BZX 70K

3.80%

3.95%

NYSE Arca 53K

2.89%

2.83%

Cboe EDGX 30K

1.63%

1.47%

Cboe BYX 13K

0.72%

0.68%

MEMX 12K

0.64%

0.63%

NYSE National 10K

0.53%

0.36%

Nasdaq BX 8K

0.45%

0.50%

Cboe EDGA 8K

0.42%

0.38%

NYSE American 3K

0.14%

0.12%

Nasdaq PHLX 2K

0.09%

0.13%

MIAX Pearl 1K

0.07%

0.16%

Texas Stock Exchange LLC 649

0.04%

0.01%

24X National 163

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 940,783, which is 50.85% of today's total volume.
Today's Lit volume is 909,175, which is 49.15%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 48.34%.
The average Lit volume has been 51.66%.

TMO Volume by Exchange

Off Exchange

NYSE

Nasdaq GSM

IEX

CHX

Cboe BZX

NYSE Arca

Cboe EDGX

Cboe BYX

MEMX

NYSE National