AMGN vs BIIB Stock Comparison

AMGN and BIIB stock analysis with 20 years of historical data and interactive charts

Compare AMGN vs BIIB

AMGN

Stock Price (April 2006) $48.62
Stock Price (March 2026) $351.85
10-Year Growth 124.18%
20-Year Growth 229.75%
Market Cap (March 2026) $176.25 Billion

BIIB

Stock Price (April 2006) $46.34
Stock Price (March 2026) $183.33
10-Year Growth -35.48%
20-Year Growth 186.50%
Market Cap (March 2026) $25.82 Billion

20-Year Performance Chart

Interactive visualization of AMGN vs BIIB stock performance (2006-2026)

20-Year Performance Data

Year AMGN BIIB
2026 +8.13% +3.10%
2025 +30.35% +17.33%
2024 -9.71% -42.88%
2023 +13.89% -5.08%
2022 +19.52% +13.43%
2021 +2.34% -1.25%
2020 -1.59% -16.78%
2019 +29.44% -2.61%
2018 +13.21% -9.95%
2017 +18.60% +9.21%
2016 -5.24% -3.75%
2015 +3.56% -10.43%
2014 +40.23% +21.09%
2013 +30.34% +86.38%
2012 +37.05% +28.96%
2011 +16.79% +63.76%
2010 -4.88% +25.00%
2009 -4.10% +10.33%
2008 +23.93% -14.75%
2007 -32.11% +15.39%
2006 -4.97% +6.15%
20-Year Average Return for AMGN 11.49%
20-Year Average Return for BIIB 9.32%

24 Months Performance

Month AMGN BIIB
March 2026 -8.78% -2.51%
February 2026 +13.39% +7.11%
January 2026 +4.35% +1.16%
December 2025 -3.02% -1.01%
November 2025 +17.42% +20.24%
October 2025 -0.02% +0.03%
September 2025 -1.65% +0.32%
August 2025 -2.30% +0.20%
July 2025 +1.58% -1.59%
June 2025 -3.21% -4.23%
May 2025 +2.45% +7.33%
April 2025 -5.21% -8.29%
March 2025 +0.25% -3.44%
February 2025 +7.50% -1.29%
January 2025 +10.08% -4.05%
December 2024 -6.28% -6.89%
November 2024 -10.68% -7.57%
October 2024 -0.05% -8.81%
September 2024 -2.51% -5.37%
August 2024 +0.19% -2.82%
July 2024 +6.90% -8.01%
June 2024 +1.64% +0.88%
May 2024 +11.05% +4.08%
April 2024 -3.22% +0.00%
24 Months Average Return for AMGN 1.24%
24 Months Average Return for BIIB -1.02%

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