Dark

TMO
Thermo Fisher Scientific, Inc.
stock NYSE

At Close

Sep 30, 2026 3:59:58 PM EDT

675.35USD-0.626%(-4.26)2,295,995

643.45Bid 716.93Ask 73.48Spread

Pre-market

Sep 30, 2026 9:20:30 AM EDT

678.99USD-0.091%(-0.62)49

After-hours

Sep 30, 2026 4:23:30 PM EDT

677.81USD+0.364%(+2.46)434

OverviewOptionsHistoricalExchange VolumeShortsMore

TMO Volume Sep 30, 2026

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Exchange	Day%	Volume	30D%
Off Exchange¹	60.56	1,082,043	48.38
NYSE	12.59	224,969	26.38
Nasdaq GSM	8.34	149,087	7.51
IEX	6.95	124,170	5.72
Cboe BZX	3.97	70,902	3.96
NYSE Arca	3.10	55,404	2.85
Cboe EDGX	1.26	22,515	1.48
Cboe BYX	0.80	14,209	0.69
MEMX	0.58	10,411	0.63
Nasdaq BX	0.43	7,646	0.50
Cboe EDGA	0.39	6,969	0.38
NYSE National	0.34	6,044	0.37
MIAX Pearl	0.20	3,589	0.16
NYSE American	0.17	3,008	0.12
CHX	0.12	2,153	0.72
Nasdaq PHLX	0.12	2,067	0.13
Texas Stock Exchange LLC	0.08	1,406	0.01
24X National	0.00	40	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

0.86 servings per container

Serving size

2.07M

Calories

1.79M

% Day

% Avg

Off Exchange¹ 1M

60.56%

48.38%

NYSE 225K

12.59%

26.38%

Nasdaq GSM 149K

8.34%

7.51%

IEX 124K

6.95%

5.72%

Cboe BZX 71K

3.97%

3.96%

NYSE Arca 55K

3.10%

2.85%

Cboe EDGX 23K

1.26%

1.48%

Cboe BYX 14K

0.80%

0.69%

MEMX 10K

0.58%

0.63%

Nasdaq BX 8K

0.43%

0.50%

Cboe EDGA 7K

0.39%

0.38%

NYSE National 6K

0.34%

0.37%

MIAX Pearl 4K

0.20%

0.16%

NYSE American 3K

0.17%

0.12%

CHX 2K

0.12%

0.72%

Nasdaq PHLX 2K

0.12%

0.13%

Texas Stock Exchange LLC 1K

0.08%

0.01%

24X National 40

0.00%

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 1,082,043, which is 60.56% of today's total volume.
Today's Lit volume is 704,589, which is 39.44%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 48.38%.
The average Lit volume has been 51.62%.

TMO Volume by Exchange

Off Exchange

NYSE

Nasdaq GSM

IEX

Cboe BZX

NYSE Arca

Cboe EDGX

Cboe BYX

MEMX

Nasdaq BX

Cboe EDGA