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MRK
$144.30+0.34%
as of close, Oct 2, 2026
☾ AH $144.30 +0.34%
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Merck & Co. Inc. returns by year

As of market close, Oct 2, 2026

Merck & Co. Inc. returns by year (1971–2026)#

Merck & Co. Inc. annual returns by year
YearTotal return
2026YTD
+39.9%
2025
+9.8%
2024
-6.3%
2023
+1.0%
2022
+49.4%
2021
+1.8%
2020
-7.2%
2019
+22.3%
2018
+40.0%
2017
-1.5%
2016
+15.1%
2015
-3.9%
2014
+16.9%
2013
+26.8%
2012
+13.1%
2011
+9.6%
2010
+2.9%
2009
+26.7%
2008
-45.3%
2007
+37.4%
2006
+41.1%
2005
+2.7%
2004
-27.8%
2003
-16.0%
2002
-1.2%
2001
-36.0%
2000
+41.8%
1999
-7.5%
1998
+41.3%
1997
+35.6%
1996
+23.9%
1995
+75.4%
1994
+10.9%
1993
-20.7%
1992
-21.8%
1991
+85.3%
1990
+16.0%
1989
+34.2%
1988
+9.3%
1987
+28.0%
1986
+80.8%
1985
+45.7%
1984
+4.0%
1983
+6.8%
1982
-0.2%
1981
+0.0%
1980
+17.3%
1979
+6.8%
1978
+21.8%
1977
-18.5%
1976
-1.6%
1975
+4.3%
1974
-17.8%
1973
-9.4%
1972
+43.7%
1971
+25.3%
Annualized
+10.5%
1971–2026
Average year
+13.3%
55 full years
Best year
+85.3%
1991
Worst year
-45.3%
2008
Positive years
37/55
67% up

Total return by period#

Annual

Methodology#

Total returns, dividends reinvested, measured on MRK. Annualized return is the compound annual growth rate; the current year is year-to-date. Past performance does not predict future returns.

FAQ#

What is Merck & Co. Inc.'s average annual return?
Since 1971, Merck & Co. Inc. (MRK) has returned about 10.5% a year (the compound annual growth rate) and an average calendar-year return of 13.3%.
What were Merck & Co. Inc.'s best and worst years?
Over 1971–2026, the best year was 1991 (+85.3%) and the worst was 2008 (-45.3%).
How often is Merck & Co. Inc. up in a year?
37 of the 55 full years since 1971 were positive — about 67% of the time.

More on Merck & Co. Inc.