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Illumina price to book ratio ILMN

Market value divided by the book value of the company's net assets, since 2010.

Today, Oct 23, 2026
14.3×
10-year median
9.7×
Against its 10-year history
95th
percentile: 0 is its lowest day, 100 its highest
10-year range
2.5× to 16.6×
Peer median
3.6×

Illumina's price to book ratio is 14.3× as of Oct 23, 2026.

That is above its ten-year median of 9.7×, higher than on 95% of days in the last ten years.

Over that time it ranged from 2.5× in Nov 2023 to 16.6× in Nov 2024.

The median for 10 diagnostics and research stocks of a similar size is 3.6×.

Price to book ratio over time

The dashed line is the 10-year median and the shaded band the middle half of its days.

Open the interactive chart, with overlays and comparisons

Year by year

YearEnd of yearLowHigh
2026 so far14.3×6.6×14.8×
20258.7×4.8×10.2×
202410.1×2.8×16.6×
20233.6×2.5×5.4×
20224.6×2.6×5.8×
20215.5×5.0×15.2×
202011.2×7.2×11.8×
201910.7×8.9×13.6×
201812.2×10.8×16.1×
201710.9×9.0×12.0×
20168.2×7.9×13.4×
201514.1×11.2×21.5×
201420.4×9.7×23.7×
20139.9×4.5×9.9×
20125.4×3.6×6.1×
20113.5×2.8×8.6×
20106.9×5.1×7.0×

Against its peers

Companies in Medical - Diagnostics & Research nearest Illumina's size, closest first, today.

CompanyPrice to book ratio
ILMNIllumina14.3×
IDXXIDEXX Laboratories27.4×
WATWaters2.9×
IQVIQVIA7.5×
AAgilent Technologies6.6×
MTDMettler-Toledo Internationaln/m
DGXQuest Diagnostics3.6×
LHLabcorp3.1×
MEDPMedpace43.1×
RVTYRevvity2.5×
DHRDanaher3.1×
Peer median3.6×

What the price to book ratio tells you

Market value divided by the accounting value of the company's net assets. Below 1 means the market values the business at less than what it owns on paper.

Book value misses brands, software and people, so asset-light companies always look expensive on it. Most useful for banks and industrials.

More on Illumina

Valuation data, not investment advice. Prices as of . Reported figures come from the company's filings with the SEC.