AMGN vs BIIB
Amgen (AMGN) and Biogen (BIIB) compared side by side. Amgen (AMGN) is larger, with a market cap of $237.5B versus $37.0B for Biogen, about 6.4 times the size. On trailing earnings, AMGN is cheaper at 27.3x versus 44.5x for BIIB.
Head to head
| Metric | AMGN | BIIB |
|---|---|---|
| Market cap | $237.5B | $37.0B |
| P/E (TTM) | 27.3x | 44.5x |
| Forward P/E | 17.9x | 15.2x |
| Revenue (TTM) | $38.1B | $10.0B |
| Revenue growth | 9.5% | 3.4% |
| Gross margin | 71.9% | 78.3% |
| Operating margin | 35.5% | 25.1% |
| Free cash flow | $10.2B | $2.5B |
| Dividend yield | 2.29% | None |
| 1-year return | +54.1% | +67.0% |
| 5-year return (annual) | +19.7% | -1.1% |
| Max drawdown | -78% | -90% |
| FI Handbook grade | B- | C |
Highlighted: the stronger figure on metrics where higher or lower is clearly better.
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AMGN vs BIIB FAQ
Which is bigger, AMGN or BIIB?
Amgen (AMGN) is larger, with a market cap of $237.5B versus $37.0B for Biogen, about 6.4 times the size.
Is AMGN or BIIB cheaper?
On trailing earnings, AMGN is cheaper at 27.3x versus 44.5x for BIIB. A lower P/E can reflect slower expected growth, so compare growth and margins too.
Which stock performed better over the past year, AMGN or BIIB?
BIIB returned +67.0% over the past year including dividends, versus +54.1% for AMGN, through October 23, 2026.
Which pays a higher dividend, AMGN or BIIB?
AMGN yields 2.29%; BIIB does not pay a dividend.