AZN vs BIIB Stock Comparison

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

Compare AZN vs BIIB

AZN

Stock Price (February 2006) $11.38
Stock Price (January 2026) $187.10
10-Year Growth 160.62%
20-Year Growth 220.42%
Market Cap (January 2026) $285.04 Billion

BIIB

Stock Price (February 2006) $45.27
Stock Price (January 2026) $179.89
10-Year Growth -37.42%
20-Year Growth 184.56%
Market Cap (January 2026) $25.82 Billion

20-Year Performance Chart

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

20-Year Performance Data

Year AZN BIIB
2026 +2.42% +1.16%
2025 +42.46% +17.33%
2024 -2.14% -42.88%
2023 -0.80% -5.08%
2022 +19.03% +13.43%
2021 +18.47% -1.25%
2020 +2.04% -16.78%
2019 +36.33% -2.61%
2018 +11.58% -9.95%
2017 +31.23% +9.21%
2016 -14.51% -3.75%
2015 +0.42% -10.43%
2014 +25.24% +21.09%
2013 +30.49% +86.38%
2012 +5.26% +28.96%
2011 +5.66% +63.76%
2010 +2.49% +25.00%
2009 +21.65% +10.33%
2008 +1.10% -14.75%
2007 -18.00% +15.39%
2006 +12.36% +8.66%
20-Year Average Return for AZN 11.02%
20-Year Average Return for BIIB 9.23%

24 Months Performance

Month AZN BIIB
January 2026 +2.42% +1.16%
December 2025 +1.56% -1.01%
November 2025 +13.46% +20.24%
October 2025 -2.32% +0.03%
September 2025 -4.33% +0.32%
August 2025 +8.78% +0.20%
July 2025 +2.28% -1.59%
June 2025 -2.85% -4.23%
May 2025 +3.29% +7.33%
April 2025 -1.12% -8.29%
March 2025 -3.42% -3.44%
February 2025 +10.62% -1.29%
January 2025 +7.41% -4.05%
December 2024 -2.27% -6.89%
November 2024 -5.32% -7.57%
October 2024 -9.56% -8.81%
September 2024 -9.11% -5.37%
August 2024 +8.57% -2.82%
July 2024 +1.55% -8.01%
June 2024 -1.27% +0.88%
May 2024 +2.11% +4.08%
April 2024 +12.83% +0.00%
March 2024 +4.88% -2.41%
February 2024 -2.55% -12.44%
24 Months Average Return for AZN 1.49%
24 Months Average Return for BIIB -1.83%

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