Fair value (multi-method)
Four independent methods triangulate what BIIB is worth. The headline is the Forward-DCF intrinsic value at a normalized growth rate; the margin of safety compares it to the current price.
Estimated fair value (Forward DCF)
$53.24
Method range
$53.24 – $257.43
median $149.75
Valuation methods
Each method’s implied fair value per share and its upside versus the current price. Missing methods (no analyst coverage, negative earnings, etc.) are shown as “—”.
| Method | Fair value | Upside vs price |
|---|---|---|
| Forward DCF | $53.24 | -73.07% |
| Exit multiple | $257.43 | +30.19% |
| Analyst target | $220.83 | +11.68% |
| Graham number | $78.66 | -60.22% |
- Forward DCF$53.24
- Exit multiple$257.43
- Analyst target$220.83
- Graham number$78.66
Stock price
$197.74
FCF / share (TTM)
$4.73
3Y FCF CAGR
-11.3%
Fair value @ hist. growth
$49.56
This analysis is for informational purposes only and is not financial advice. Scenario prices and DCF-style figures depend on your assumptions and data from public filings and estimates. They are not forecasts of future returns.
Implied FCF growth
4.7%
per year over your projection horizon
Margin of safety -299.0% vs hist-growth DCF
Historical 3Y CAGR
-11.3%
Your model implies
4.7%
Analyst consensus is EPS-only — no comparable FCF / share estimate to show on this basis.
Model inputs
Move sliders to test how the reverse DCF reacts. Historical-growth markers show where the company has actually grown over the last cycle.
Undiscounted FCF per share over 10 years at -11% annual growth.
Sensitivity — implied growth vs your assumptions
Each cell shows the per-share growth rate the market would need to justify the current price at that combination of discount rate (rows) and terminal growth (columns). Your selected inputs are highlighted.
| Row axis: discount rate. Column axis: terminal growth.Terminal g →↓ Discount | 1.5% | 2.0% | 2.5% | 3.0% | 3.5% |
|---|---|---|---|---|---|
| 5.0% | 5.8% | 4.4% | 2.7% | 0.7% | -2.0% |
| 5.0% | 5.8% | 4.4% | 2.7% | 0.7% | -2.0% |
| 5.5% | 7.4% | 6.1% | 4.7% | 3.0% | 0.9% |
| 6.5% | 10.4% | 9.4% | 8.3% | 7.1% | 5.6% |
| 7.5% | 13.1% | 12.3% | 11.4% | 10.4% | 9.2% |
Historical multiples
Each bar is the trailing five-year range (low left, high right). Filled portion runs from low to today; the dot marks today; the small tick marks the five-year median. Low, median, and high are listed under each bar.
Net debt
$3.94B
Total debt − cash
Beta
0.16
Vs market benchmark
Frequently asked questions
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.