PE Ratio: 40.05

Basis: Latest stored market observation. Source: stored company filings and market data; unavailable inputs remain N/A.

Is the P/E ratio high or low?

The P/E ratio of 40.05 is 94% below its 1-year average of 634.29, near the low end of its 1-year range (34.71–1972.04).

As of Friday, August 28, 2026.

PE Ratio (40.05) = Close Price ($237.10) / Diluted TTM EPS ($5.92)

ALNY PE Ratio Metrics

P/E vs. its own history

At 40.0, P/E is at an extreme level, where the multiple carries little signal — higher than 9% of readings in its 1-year history.

P/E Comparison

PE Ratio Formula & Definition

PE Ratio = Share Price / Diluted EPS (TTM)

The price-to-earnings ratio measures how much investors pay for each dollar of trailing earnings. A lower PE can indicate a cheaper valuation; a higher PE implies higher growth expectations.

Expanded definitions: Investopedia, Wikipedia, Corporate Finance Institute

PE Ratio FAQ

What is the P/E ratio for Alnylam Pharmaceuticals, Inc. (ALNY)?

The P/E ratio for ALNY stock is 40.05.

Is Alnylam Pharmaceuticals, Inc.'s P/E ratio high or low?

The P/E ratio of 40.05 is 94% below its 1-year average of 634.29, near the low end of its 1-year range (34.71–1972.04).

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