Biogen (BIIB)
$253.62 +1.59% Close Oct 30, 2026 Live
Biogen stock today
Biogen closed at $253.62 on October 30, 2026, up 1.59% on the day. Over the past year it returned +69.5% with dividends reinvested, against +12.4% for the S&P 500. Its market value is $37.5 billion.
$150.00$200.00$250.00
NovJan 2026MarMayJulSep
| Period | BIIB | S&P 500 (SPY) |
|---|---|---|
| 1 month | +12.3% | -0.9% |
| 3 months | +22.0% | +2.1% |
| Year to date | +44.1% | +11.7% |
| 1 year | +69.5% | +12.4% |
| 3 years | +6.9% | +88.5% |
| 5 years | -4.9% | +76.0% |
Key statistics
- Market value
- $37.5B
- P/E (trailing)
- 109.3
- Forward P/E
- 16.6
- Price / sales
- 3.6
- 52-week range
- $149.33 to $253.84
About Biogen
Develops and commercializes therapies for neurological and autoimmune diseases.
Sector: Health Care · Industry: Biotechnology
More on Biogen
- Financials: revenue, earnings and segmentsRevenue +2% in the year to Dec 2025
- Valuation: P/E history and peersP/E 109.3, median 15.3 at its last 10 year ends
- Returns: what $1,000 became$1,000 ten years ago is $894.16 today
No forecast, no recommendation. This page describes Biogen from published data; it is not advice to buy, sell or hold any security.
Figures as of the close on Oct 30, 2026 unless a row says otherwise. Prices are split adjusted; returns include dividends reinvested. Data may be delayed. See the disclaimer and how TrendArc works.