Alnylam Pharmaceuticals (ALNY)
$165.00 -5.17% Close Oct 30, 2026 Live
Alnylam Pharmaceuticals stock today
Alnylam Pharmaceuticals closed at $165.00 on October 30, 2026, down 5.17% on the day. Over the past year it returned -63.3% with dividends reinvested, against +12.4% for the S&P 500. Its market value is $22.1 billion.
$200.00$300.00$400.00
NovJan 2026MarMayJulSep
| Period | ALNY | S&P 500 (SPY) |
|---|---|---|
| 1 month | -33.1% | -0.9% |
| 3 months | -19.7% | +2.1% |
| Year to date | -58.5% | +11.7% |
| 1 year | -63.3% | +12.4% |
| 3 years | +9.0% | +88.5% |
| 5 years | +3.4% | +76.0% |
Key statistics
- Market value
- $22.1B
- P/E (trailing)
- 41.5
- Forward P/E
- 14.9
- Price / sales
- 4.4
- 52-week range
- $165.00 to $473.29
About Alnylam Pharmaceuticals
Alnylam Pharmaceuticals develops and commercializes RNA interference therapeutic drugs.
Sector: Health Care · Industry: Biotechnology
More on Alnylam Pharmaceuticals
- Financials: revenue, earnings and segmentsRevenue +65% in the year to Dec 2025
- Valuation: P/E history and peersP/E 41.5
- Returns: what $1,000 became$1,000 ten years ago is $4,540 today
No forecast, no recommendation. This page describes Alnylam Pharmaceuticals 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.