10-Year Growth Calculator: $1,000.00 in Biogen Inc. – ROI, Dividends & CAGR

Company Profile
Biogen Inc. (BIIB)
10.11
Healthcare
Drug Manufacturers
NASDAQ
https://www.biogen.com/
13.01
0.019T (Large-Cap)
Investment Scenario
Let’s go back to 2015. Imagine an investor who invested $1,000.00 in Biogen Inc. (BIIB) company stock and held it steadily for 10 years . Instead of chasing short-term gains, the investor adopted a long-term approach—holding the shares without selling. Over time, the value of the investment grew not only through stock price appreciation but also through the accumulation of dividend payouts.
As of January 1, 2025, the $1,000.00 investment in NASDAQ:BIIB would be worth approximately $287.86 , thanks to stock splits, price appreciation, and consistent dividend payouts. This reflects a total Loss from stocks of 712.14 , a return on investment (ROI) of -71.21%, and an annualized compounded growth rate (CAGR) of around -11.71%. This highlights the power of long-term investing and shows how a disciplined, patient approach—paired with investing in a fundamentally strong company like Biogen Inc. (BIIB)—can lead to significant wealth creation over time.
Time Period: 1 Jan, 2015 - 1 Jan, 2025
$1,000.00 invested in Biogen Inc. in 2015 declined to $287.86 by 1 Jan, 2025.

Wealth grew over time through a mix of dividend income and stock price appreciation. Dividends added to capital, while stock splits increased the number of shares held. Even without reinvesting dividends, the portfolio expanded steadily. As years passed, compounding took effect — turning small gains into larger ones. Holding the stock long-term allowed capital to grow naturally. This shows how patience, steady returns, and the power of compounding can help build lasting wealth from a single investment.

Biogen Inc. Investment Summary (2015–2025)
Investment Duration | 10 years |
Initial Investment in 2015 | $1,000.00 |
Share Price in 2015 | $389.16 |
Total Shares Purchased | 2 |
By 2025, the share price declined to $143.93. This led to a reduction in the investment's value.
Share Price in 2025 | $143.93 |
Value of 2 Shares in 2025 | $287.86 [287.86] |
Final Investment Value (2025) | $287.86 |
Total Dividend Earned | $0.00 |
Total Gain | $-712.14 |
Return on Investment (ROI) | -71.21% |
This performance reflects a Compound Annual Growth Rate (CAGR) of approximately 11.71% — indicating a negative return over the period.
Yearly Breakdown
2015
Shares | 2 |
Current Year Dividend | $0.00 |
Shares After Stock Split | No split |
Final Shares | 2 Shares |
Share Price | $389.16 |
Final Investment Value | $778.32 [ ~778.32 ] |
No Event of stock split or dividend
2016
Shares | 2 |
Current Year Dividend | $0.00 |
Shares After Stock Split | No split |
Final Shares | 2 Shares |
Share Price | $273.06 |
Final Investment Value | $546.12 [ ~546.12 ] |
No Event of stock split or dividend
2017
Shares | 2 |
Current Year Dividend | $0.00 |
Shares After Stock Split | No split |
Final Shares | 2 Shares |
Share Price | $277.24 |
Final Investment Value | $554.48 [ ~554.48 ] |
No Event of stock split or dividend
2018
Shares | 2 |
Current Year Dividend | $0.00 |
Shares After Stock Split | No split |
Final Shares | 2 Shares |
Share Price | $347.81 |
Final Investment Value | $695.62 [ ~695.62 ] |
No Event of stock split or dividend
2019
Shares | 2 |
Current Year Dividend | $0.00 |
Shares After Stock Split | No split |
Final Shares | 2 Shares |
Share Price | $333.78 |
Final Investment Value | $667.56 [ ~667.56 ] |
No Event of stock split or dividend
2020
Shares | 2 |
Current Year Dividend | $0.00 |
Shares After Stock Split | No split |
Final Shares | 2 Shares |
Share Price | $268.85 |
Final Investment Value | $537.70 [ ~537.70 ] |
No Event of stock split or dividend
2021
Shares | 2 |
Current Year Dividend | $0.00 |
Shares After Stock Split | No split |
Final Shares | 2 Shares |
Share Price | $282.61 |
Final Investment Value | $565.22 [ ~565.22 ] |
No Event of stock split or dividend
2022
Shares | 2 |
Current Year Dividend | $0.00 |
Shares After Stock Split | No split |
Final Shares | 2 Shares |
Share Price | $226.00 |
Final Investment Value | $452.00 [ ~452.00 ] |
No Event of stock split or dividend
2023
Shares | 2 |
Current Year Dividend | $0.00 |
Shares After Stock Split | No split |
Final Shares | 2 Shares |
Share Price | $290.90 |
Final Investment Value | $581.80 [ ~581.80 ] |
No Event of stock split or dividend
2024
Shares | 2 |
Current Year Dividend | $0.00 |
Shares After Stock Split | No split |
Final Shares | 2 Shares |
Share Price | $246.66 |
Final Investment Value | $493.32 [ ~493.32 ] |
No Event of stock split or dividend
2025
Shares | 2 |
Current Year Dividend | $0.00 |
Shares After Stock Split | No split |
Final Shares | 2 Shares |
Share Price | $143.93 |
Final Investment Value | $287.86 [ ~287.86 ] |
No Event of stock split or dividend
BIIB 10 years Investment Performance Overview
BIIB has traded between a 52-week low of 110.04 and a high of 219.44 per share so far this year.
- Initial investment: $1,000.00
- Stock Loss: $712.14
- Total Dividends received: $0.00
- Total return (Stock Loss + Dividends): $-712.14
- Total value (Initial + Stock Loss + Dividends): $287.86