Result
Jul 30, 2021 → Jul 29, 2026 · 4y 11mo
Today's value
$640.38-35.96%
Initial investment
$1,000
Loss
$359.62
Annual return (CAGR)
-8.53%
Historical return extremes for Biogen (BIIB) from 1991 to 2026
What if you bought at the best or worst time? Max profit, max drawdown, and total return since IPO.
| Scenario | Return | Start date | Start price | End date | End price | $1,000 becomes |
|---|---|---|---|---|---|---|
| Max profitMore info about Max profit | +134,293% | $0.35 | $475.98 | $1,343,930.88 | ||
| Max drawdownMore info about Max drawdown | -90.00% | $3.54 | $0.35 | $100.05 | ||
| Return since IPOMore info about Return since IPO | +6,585% | $3.13 | $209.23 | $66,846.65 |
- Max profitMore info about Max profit+134,293%$1,343,930.88
- Max drawdownMore info about Max drawdown-90.00%$100.05
- Return since IPOMore info about Return since IPO+6,585%$66,846.65
Each row shows the start and end dates and prices for the scenario, the period return, and the resulting outcome for a $1,000 investment in Biogen (BIIB). Max profit is the best buy-and-sell pair across the entire price history; max drawdown is the worst peak-to-trough decline; the last row tracks return from IPO to today. Prices are split- and dividend-adjusted closing prices — actual outcomes would differ due to fees, taxes, and slippage.
Frequently asked questions
Data & methodology
Biogen (BIIB) Key Financials
Charts, filings, and peer comparison for every metric
Explore more
Deep-dives across the income statement, cash flow, capital return, and valuation
How this company returns cash to shareholders — buybacks, dividends, and stock splits.