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ALEC vs BIIB

ALEC: Alector is a biotech firm pioneering blood-brain barrier delivery technologies to advance a diverse pipeline of therapeutic candidates for neurodegenerative diseases. BIIB: A pioneer in neuroscience and immunology, Biogen is a major biotechnology company focused on addressing high-unmet medical needs in complex diseases like Alzheimer’s, Multiple Sclerosis, and SMA.

Side-by-side fundamentals

MetricALECBIIBEdge
Price as of 2026-10-08 close$2.02$218.43
Market cap$226M$32.2B
P/E as of 2026-10-08n/a38.68
Net margin FY2025, SEC XBRL-679.2%+13.1%BIIB higher
Operating margin-741.3%+25.9%BIIB higher
ROE FY2025, SEC XBRL-466.3%+7.1%BIIB higher
ROA FY2025, SEC XBRL-48.7%+4.4%BIIB higher
Debt / equity as of 2026-09-030.940.43BIIB lower
Revenue growth (YoY) as of 2026-09-03-79.2%+0.3%BIIB higher
Revenue CAGR (3y) SEC XBRL-46.0%-0.9%BIIB higher
Dividend streak (yrs) SEC XBRL00Tie
Beta as of 2026-09-031.550.51
1-year return as of 2026-10-08 close-34.4%+44.7%BIIB higher

Fundamentals: SEC XBRL company filings for the figures marked with a fiscal year, and market data, as of 2026-09-03 for the rest. Filings: SEC EDGAR. Prices are delayed daily-close data.

Last updated 2026-10-08.

Informational only — NOT financial advice. All figures are delayed daily-close data from SEC EDGAR & market data, shown with their as-of date; "Edge" cells are a pure numeric comparison, not a recommendation.