PE Ratio: 20.47

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 20.47 is 14% above its 5-year average of 17.95, around the middle of its 5-year range (7.77–32.50).

As of Friday, September 4, 2026. 19.48% above its 12-month average of 17.13.

PE Ratio (20.47) = Close Price ($810.31) / Diluted TTM EPS ($39.59)

REGN PE Ratio Metrics

P/E vs. its own history

At 20.5, P/E is near its 14-year median — higher than 38% of readings in its 14-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 Regeneron Pharmaceuticals, Inc. (REGN)?

The P/E ratio for REGN stock is 20.47.

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

The P/E ratio of 20.47 is 14% above its 5-year average of 17.95, around the middle of its 5-year range (7.77–32.50).

What is the TTM average P/E ratio for Regeneron Pharmaceuticals, Inc. (REGN)?

The TTM average P/E ratio for REGN stock is 17.13.

What is the 3Y average P/E ratio for Regeneron Pharmaceuticals, Inc. (REGN)?

The 3Y average P/E ratio for REGN stock is 20.63.

What is the 5Y average P/E ratio for Regeneron Pharmaceuticals, Inc. (REGN)?

The 5Y average P/E ratio for REGN stock is 17.95.

What is the 10Y average P/E ratio for Regeneron Pharmaceuticals, Inc. (REGN)?

The 10Y average P/E ratio for REGN stock is 20.69.

What is the 15Y average P/E ratio for Regeneron Pharmaceuticals, Inc. (REGN)?

The 15Y average P/E ratio for REGN stock is 32.19.

Showing the most recent 260 of 3,485 data points. The chart above shows the full history.

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