All charts and data below are CPI-U inflation-adjusted and with dividends reinvested. (Why?)

Total Real Returns

BIIB: Total Real Return Chart (Dividends Reinvested, Inflation Adjusted)

Tue 1991-09-17? to Mon 2025-07-28 YTD
Return
TRR
Price
BIIB
×
−17.45%
2025-07-28
17.53 TRR
2025-07-28
Biogen Inc NASDAQ Common Stock

Returns

Tue 1991-09-17? to Mon 2025-07-28 Overall
Return
Exponential
Trendline
BIIB
×
+1,652.71%
+8.83%/yr
+16.39%/yr
(R2=0.751)
Biogen Inc NASDAQ Common Stock

Growth of $10,000

Tue 1991-09-17? to Mon 2025-07-28 Start
Value
End
Value
BIIB
×
$10,000.00
1991-09-17
$175,271.15
2025-07-28
Biogen Inc NASDAQ Common Stock

Annual Returns

Year BIIB
2025 (YTD) −17.45%
2024 −42.56%
2023 −9.58%
2022 +8.41%
2021 −8.46%
2020 −18.59%
2019 −3.60%
2018 −7.31%
2017 +10.01%
2016 −9.31%
2015 −10.41%
2014 +20.51%
2013 +88.17%
2012 +30.73%
2011 +59.40%
2010 +23.49%
2009 +9.34%
2008 −16.39%
2007 +11.17%
2006 +5.96%
2005 −34.27%
2004 +75.78%
2003 +8.61%
2002 −53.00%
2001 +7.42%
2000 +86.60%
1999 +307.12%
1998 +34.58%
1997 +42.31%
1996 +17.89%
1995 +794.86%
1994 −64.00%
1993 −36.06%
1992 −34.58%
1991 −31.16%

Drawdowns

Tue 1991-09-17? to Mon 2025-07-28 Current
Drawdown
Worst
Drawdown
BIIB
×
−80.20% −90.83%
1994-12-16
Biogen Inc NASDAQ Common Stock