Is Biogen Inc (BIIB) overvalued?

On Equity Rank's model estimate, BIIB trades close to its fair value (7% above it). Biogen Inc (BIIB) last closed at $248.35; the multi-method model fair value is $232.17.

PriceModel fair valuePrice vs model
$248.35$232.177% above

What the answer rests on

Read this before relying on it

The model fair value is an estimate from published financial statements. It is not a forecast of where the price goes, and it can be wrong. Within 10% either side we call it close to fair value: valuation models are not precise enough to read more into a smaller gap. Our own lists have no proven edge over the market yet; the live record shows every result, misses included.

Data as of Fri, Nov 6, 2026. Informational only — not investment advice.

Every valuation method behind BIIB's fair value · What prices assume · Other companies