BIIB

Biogen Inc.
HealthcareDrug Manufacturers - GeneralNASDAQ
$188.66
+$6.57 (3.48%)today
Conviction
5/ 10
Fair Value$205.90
Upside+9.14%
Signal4.57
Market Cap$27.5B
52W Range$110.04–$202.41
Next EarningsApr 30

Conviction History

Conviction Changes

No conviction changes recorded

Price History

FAIR VALUE ANALYSISMonte Carlo · 5,000 runs · 99% valid
Fair Value$197.67
Current Price$183.84
Upside / Down+7.5%
P(Undervalued)65.8%
P(20%+ Up)26.1%
P(15%+ Down)10.8%

Fair Value Distribution — percentile bands

65.8% of simulations place fair value above current price

WHAT IS PRICED IN

Revenue-Based Reverse DCF

-0.4%/yr

±3.8% · revenue growth to justify current price

FCF-Based Reverse DCF

1.9%/yr

±2.6% · FCF growth to justify current price

THE GAP

Market pricing margin compression or rising capex

KEY VALUE DRIVERS

Spearman correlation — what moves this valuation most

Bull Case
Queued for analysis

Eagle will generate this view by the next trading session (~7h).

Bear Case
Queued for analysis

Eagle will generate this view by the next trading session (~7h).

Research Feed

sec_10kMar 3
Conviction: unchanged
BIIB 2025 10-K: Portfolio Transition & Reallocation

Biogen's 2025 10-K reveals a company in strategic transition. MS franchise under heavy biosimilar pressure (TECFIDERA generics, TYSABRI biosimilar). Rare disease growth (SPINRAZA, SKYCLARYS, QALSODY) ...