Biogen Inc. (BIIB) Stock Investment Calculator & Historical Return Analysis
Biogen Inc. is an American multinational biotechnology company specializing in the discovery, development, and delivery of innovative therapies for people living with serious neurological and neurodegenerative diseases. The company focuses on conditions such as multiple sclerosis (MS), Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis (ALS), and spinal muscular atrophy (SMA). Investors often view Biogen Inc. as a key player in the market, analyzing its long-term potential through various revenue models, brand recognition, and consistent presence in its industry.
This Biogen Inc. stock investment calculator allows you to explore how a hypothetical investment in BIIB might have performed over time. By adjusting the investment amount and time period, you can visualize potential growth, compare outcomes across different market cycles, and better understand the impact of long-term investing.
What if you invested $1000 in BIIB on Jan 1, 2020?
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Understanding Biogen Inc.'s Historical Performance
Biogen Inc.'s stock performance has historically reflected both broader market trends and company-specific milestones. Like many growth-oriented stocks, BIIB has experienced periods of growth driven by innovation and market demand.
When analyzing Biogen Inc.'s historical returns, it's important to consider:
- Market cycles: Strong bull markets often amplify returns, while recessions can temporarily suppress performance.
- Business model evolution: Changes in revenue strategies and product lines can significantly impact stability.
- Long-term trends: Over extended periods, compounding can play a larger role than short-term price fluctuations. Try our calculator to explore returns over 5 years or larger investments over 10 years.
This calculator helps you see how these factors might have affected an investment depending on when you entered the market.
Historical Annual Returns
Over the past 35 years, Biogen Inc. has delivered an average annual return of 37.4%. The stock peaked in 1995 with a massive +721.1% gain, while investors faced a downturn in 1994 (-62.2%). Overall, the stock finished in the green 20 times out of 35 years.
Avg Return
+37.4%
Win Rate
57%
20W - 15L
Best
+721.1%
1995
Worst
-62.2%
1994
Performance Consistency
Biogen Inc. Annual Returns by Year
| Year | Annual Return | Start Price | End Price |
|---|---|---|---|
| 1991 | -30.67% | $3.13 | $2.17 |
| 1992 | -31.37% | $2.13 | $1.46 |
| 1993 | -36.11% | $1.50 | $0.96 |
| 1994 | -62.22% | $0.94 | $0.35 |
| 1995 | +721.05% | $0.40 | $3.25 |
| 1996 | +24.18% | $3.19 | $3.96 |
| 1997 | +52.78% | $3.75 | $5.73 |
| 1998 | +38.75% | $5.65 | $7.83 |
| 1999 | +320.32% | $7.79 | $32.75 |
| 2000 | +103.28% | $31.08 | $63.19 |
| 2001 | +16.34% | $59.25 | $68.93 |
| 2002 | -51.33% | $68.15 | $33.17 |
| 2003 | +6.87% | $34.34 | $36.70 |
| 2004 | +80.32% | $36.94 | $66.61 |
| 2005 | -31.69% | $66.29 | $45.28 |
| 2006 | +5.24% | $46.74 | $49.19 |
| 2007 | +15.39% | $49.33 | $56.92 |
| 2008 | -14.75% | $55.87 | $47.63 |
| 2009 | +10.33% | $48.49 | $53.50 |
| 2010 | +25.00% | $53.64 | $67.05 |
| 2011 | +63.76% | $67.20 | $110.05 |
| 2012 | +28.96% | $113.50 | $146.37 |
| 2013 | +86.38% | $150.00 | $279.57 |
| 2014 | +21.09% | $280.33 | $339.45 |
| 2015 | -10.43% | $342.01 | $306.35 |
| 2016 | -3.75% | $294.62 | $283.58 |
| 2017 | +9.21% | $291.71 | $318.57 |
| 2018 | -9.95% | $334.17 | $300.92 |
| 2019 | -2.61% | $304.69 | $296.73 |
| 2020 | -16.78% | $294.24 | $244.86 |
| 2021 | -1.25% | $242.95 | $239.92 |
| 2022 | +13.43% | $244.14 | $276.92 |
| 2023 | -5.08% | $272.63 | $258.77 |
| 2024 | -42.88% | $267.71 | $152.92 |
| 2025 | +17.33% | $150.00 | $175.99 |
Historical annual returns for Biogen Inc.. Data shows year-over-year percentage change in stock price.
Why Use a "What If" Stock Calculator?
Many investors wonder questions such as:
- What if I had invested 5 years ago?
- How does timing affect long-term returns?
- What role does compounding play in stock investments?
A what-if investment calculator answers these questions by turning historical data into practical insights. Rather than focusing on daily price movements, it encourages a long-term perspective, which is especially useful for retirement planning, portfolio comparisons, and financial education.
Key Innovations
- ✓Pioneered the use of recombinant DNA technology in the biotechnology industry.
- ✓Developed Spinraza, the first approved treatment for spinal muscular atrophy (SMA).
Business Segments
- Multiple SclerosisDevelops and commercializes therapies for multiple sclerosis.
- Alzheimer's Disease and DementiaFocuses on research and development of treatments for Alzheimer's disease and related dementias.
- Spinal Muscular Atrophy (SMA)Develops and commercializes therapies for spinal muscular atrophy.
How to Interpret the Results
The results shown are based on historical performance and are meant for educational and informational purposes only. They do not account for future market conditions, taxes, transaction fees, or individual investment strategies. Past performance does not guarantee future results, but historical analysis can help investors understand risk, volatility, and growth potential.
For best use:
- Compare multiple time ranges to see how outcomes differ
- Use consistent assumptions across different stocks
- Combine this tool with fundamental research and diversification principles