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ALNY
$246.74-2.89%
as of close, Sep 30, 2026
☾ AH $246.74 -2.89%
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Alnylam Pharmaceuticals Inc. returns by year

As of market close, Sep 30, 2026

Alnylam Pharmaceuticals Inc. returns by year (2005–2026)#

Alnylam Pharmaceuticals Inc. annual returns by year
YearTotal return
2026YTD
-38.0%
2025
+69.0%
2024
+22.9%
2023
-19.5%
2022
+40.1%
2021
+30.5%
2020
+12.9%
2019
+58.0%
2018
-42.6%
2017
+239.3%
2016
-60.2%
2015
-2.9%
2014
+50.9%
2013
+252.3%
2012
+123.9%
2011
-17.3%
2010
-44.0%
2009
-28.8%
2008
-15.0%
2007
+35.9%
2006
+60.7%
2005
+78.3%
Annualized
+17.0%
2005–2026
Average year
+40.2%
21 full years
Best year
+252.3%
2013
Worst year
-60.2%
2016
Positive years
13/21
62% up

Total return by period#

Annual

Methodology#

Total returns, dividends reinvested, measured on ALNY. 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 Alnylam Pharmaceuticals Inc.'s average annual return?
Since 2005, Alnylam Pharmaceuticals Inc. (ALNY) has returned about 17.0% a year (the compound annual growth rate) and an average calendar-year return of 40.2%.
What were Alnylam Pharmaceuticals Inc.'s best and worst years?
Over 2005–2026, the best year was 2013 (+252.3%) and the worst was 2016 (-60.2%).
How often is Alnylam Pharmaceuticals Inc. up in a year?
13 of the 21 full years since 2005 were positive — about 62% of the time.

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