Thermo Fisher Scientific Inc.

TMO · Healthcare

About Thermo Fisher Scientific Inc. (TMO)

Thermo Fisher Scientific Inc. is a Diagnostics & Research company operating in the Healthcare sector.

TMO trades on the US stock exchanges (NYSE/NASDAQ) and is classified as a large-cap stock .

Sector
Healthcare
Industry
Diagnostics & Research

Key Statistics

Current Price
$697.00
Market Cap
$258.25B
52-Week High
$711.85
52-Week Low
$435.27
Sector
Healthcare
Industry
Diagnostics & Research

$1,000 Invested in Thermo Fisher Scientific Inc. (TMO)

1 Year
$1,258
+26%
3 Years
$1,599
+60%
5 Years
$1,163
+16%
10 Years
$4,759
+376%
Since IPO
$416,918
+41592%

How much would $1,000 invested in TMO be worth today?

What would $1,000 invested in TMO 1 year ago be worth today?

A $1,000 investment in Thermo Fisher Scientific Inc. (TMO) in 2025 would be worth $1,258 as of November 2026, representing a +25.8% total return.

What would $1,000 invested in TMO 3 years ago be worth today?

A $1,000 investment in Thermo Fisher Scientific Inc. (TMO) in 2023 would be worth $1,599 as of November 2026, representing a +59.9% total return.

What would $1,000 invested in TMO 5 years ago be worth today?

A $1,000 investment in Thermo Fisher Scientific Inc. (TMO) in 2021 would be worth $1,163 as of November 2026, representing a +16.3% total return.

What would $1,000 invested in TMO 10 years ago be worth today?

A $1,000 investment in Thermo Fisher Scientific Inc. (TMO) in 2016 would be worth $4,759 as of November 2026, representing a +375.9% total return.

What would $1,000 invested in TMO at IPO be worth today?

A $1,000 investment in Thermo Fisher Scientific Inc. (TMO) at IPO would be worth $416,918 as of November 2026, representing a +41591.8% total return.

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TMO vs S&P 500

See how TMO compares to the S&P 500 benchmark over time

Monthly Returns Heatmap

Avg Monthly Return
+1.49%
Positive Months
314
56% of 559
Negative Months
240
43% of 559
Data Period
46+ years
559 months
Best Performers
Best month ever: Jan 1983 (+44.7%)
Best month on avg: January (+3.6%)
Worst Performers
Worst month ever: Oct 1987 (-39.6%)
Worst month on avg: September (-0.7%)

Over the past 46+ years (559 months), Thermo Fisher Scientific Inc. (TMO) has averaged a monthly return of +1.49% with a median return of +1.18%. The stock had 314 positive months (56%) and 240 negative months (43%). The best month in TMO's history was January 1983 with a +44.7% return, while the worst was October 1987 at -39.6%. Historically, January tends to be the strongest month (averaging +3.6%), and September the weakest (-0.7%).

TMO's longest winning streak was 12 consecutive months of gains, while its longest losing streak was 7 consecutive months of losses. The best full year was 1983 with a cumulative return of +96.8%, and the worst was 1998 at -75.6%.

Annual Returns

Over 46 years of trading history, Thermo Fisher Scientific Inc. (TMO) has delivered an average annual return of +18.81% with a median return of +17.14%. The compound annual growth rate (CAGR) is +13.35%. The stock posted gains in 30 years (65%) and losses in 16 years (35%).

TMO's best year was 1983 with a +114.63% gain, while the worst was 1998 at -61.51%. The longest streak of consecutive positive years was 7, and the longest losing streak was 3 years. TMO achieved double-digit gains (10%+) in 27 years. It suffered double-digit losses in 9 years.

Avg Return
+18.81%
Best Year
1983 (+114.63%)
Worst Year
1998 (-61.51%)
Positive Years
30/46
Year Return Start End
2026 +20.62% $577.86 $697.00
2025 +11.78% $516.97 $577.86
2024 -1.72% $526.03 $516.97
2023 -3.36% $544.30 $526.03
2022 -17.29% $658.04 $544.30
2021 +43.54% $458.44 $658.04
2020 +43.72% $318.98 $458.44
2019 +45.55% $219.16 $318.98
2018 +18.21% $185.40 $219.16
2017 +35.03% $137.30 $185.40
2016 -0.12% $137.46 $137.30
2015 +13.75% $120.85 $137.46
2014 +13.06% $106.89 $120.85
2013 +75.78% $60.81 $106.89
2012 +43.17% $42.47 $60.81
2011 -18.77% $52.28 $42.47
2010 +16.08% $45.04 $52.28
2009 +39.98% $32.18 $45.04
2008 -40.93% $54.47 $32.18
2007 +27.36% $42.77 $54.47
2006 +50.32% $28.46 $42.77
2005 -0.20% $28.51 $28.46
2004 +19.80% $23.80 $28.51
2003 +25.25% $19.00 $23.80
2002 -15.67% $22.53 $19.00
2001 -6.77% $24.17 $22.53
2000 +98.33% $12.19 $24.17
1999 -11.44% $13.76 $12.19
1998 -61.51% $35.75 $13.76
1997 +6.67% $33.51 $35.75
1996 +19.00% $28.16 $33.51
1995 +73.82% $16.20 $28.16
1994 +6.85% $15.16 $16.20
1993 +34.02% $11.31 $15.16
1992 +1.07% $11.19 $11.31
1991 +61.47% $6.93 $11.19
1990 -5.71% $7.35 $6.93
1989 +51.23% $4.86 $7.35
1988 +48.62% $3.27 $4.86
1987 -19.85% $4.08 $3.27
1986 +26.71% $3.22 $4.08
1985 +50.94% $2.13 $3.22
1984 -9.09% $2.35 $2.13
1983 +114.63% $1.09 $2.35
1982 -27.65% $1.51 $1.09
1981 -30.89% $2.19 $1.51

Frequently Asked Questions: TMO

What sector is TMO in? ▼

TMO operates in the Healthcare sector, specifically in the Diagnostics & Research industry. This sector includes pharmaceutical companies, biotechnology firms, medical device manufacturers, and healthcare providers.

How has TMO performed historically? ▼

Over 46 years of trading history, TMO has posted gains in 30 years (65% of the time). The best year was 1983 with a +114.6% return. Past performance does not guarantee future results.

How can I invest in TMO? ▼

You can invest in TMO through any brokerage account that offers access to US stock exchanges. Popular options include commission-free brokers like Fidelity, Charles Schwab, or Robinhood (US), or international brokers like Interactive Brokers. You can buy individual shares or invest through ETFs that hold TMO.

Last updated: 11/1/2026