PE Ratio: 51.08

Basis: FMP quote price / unrounded diluted EPS from four consecutive issuer fiscal quarters. 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 51.08 is 28% above its 5-year average of 39.90, around the middle of its 5-year range (11.52–78.56).

As of 2026-10-02T19:40:37.374Z. 79.55% above its 12-month average of 28.45.

PE Ratio (51.08) = Close Price ($273.78) / Diluted TTM EPS ($5.36)

ILMN PE Ratio Metrics

P/E vs. its own history

At 51.1, P/E is below its 20-year median — higher than 31% of readings in its 20-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 Illumina, Inc. (ILMN)?

The P/E ratio for ILMN stock is 51.08.

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

The P/E ratio of 51.08 is 28% above its 5-year average of 39.90, around the middle of its 5-year range (11.52–78.56).

What is the TTM average P/E ratio for Illumina, Inc. (ILMN)?

The TTM average P/E ratio for ILMN stock is 28.45.

What is the 3Y average P/E ratio for Illumina, Inc. (ILMN)?

The 3Y average P/E ratio for ILMN stock is 26.09.

What is the 5Y average P/E ratio for Illumina, Inc. (ILMN)?

The 5Y average P/E ratio for ILMN stock is 39.90.

What is the 10Y average P/E ratio for Illumina, Inc. (ILMN)?

The 10Y average P/E ratio for ILMN stock is 52.86.

What is the 15Y average P/E ratio for Illumina, Inc. (ILMN)?

The 15Y average P/E ratio for ILMN stock is 61.22.

What is the 20Y average P/E ratio for Illumina, Inc. (ILMN)?

The 20Y average P/E ratio for ILMN stock is 65.52.

Showing the most recent 260 of 4,038 data points. The chart above shows the full history.

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