Quest Diagnostics PE ratio DGX

Share price divided by earnings per share over the last twelve months, since 2010.

Today, Oct 23, 2026: 25.7×
10-year median: 19.3×
Against its 10-year history: 99th; percentile: 0 is its lowest day, 100 its highest
10-year range: 7.9× to 26.2×
Peer median: 39.3×

Quest Diagnostics' PE ratio is 25.7× as of Oct 23, 2026: a share price of $241.89 against $10.03 of earnings per share over the last twelve months.

That is above its ten-year median of 19.3×, higher than on 99% of days in the last ten years.

Over that time it ranged from 7.9× in Feb 2022 to 26.2× in Sep 2026.

The median for 10 diagnostics and research stocks of a similar size is 39.3×.

PE ratio over time

median 19.3×

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

Year	End of year	Low	High
2026 so far	25.7×	20.5×	26.2×
2025	20.7×	20.2×	22.9×
2024	20.4×	16.5×	21.8×
2023	20.7×	14.0×	21.3×
2022	15.4×	7.9×	15.4×
2021	10.4×	8.4×	16.0×
2020	14.7×	11.7×	23.1×
2019	20.0×	13.4×	20.2×
2018	13.2×	13.2×	22.4×
2017	20.6×	18.4×	22.9×
2016	19.6×	12.7×	19.7×
2015	14.6×	13.8×	22.7×
2014	19.5×	9.4×	19.5×
2013	11.0×	10.8×	19.0×
2012	13.4×	12.9×	21.7×
2011	21.3×	13.1×	21.7×
2010	13.3×	11.3×	14.8×

Against its peers

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

Company	PE ratio
DGXQuest Diagnostics	25.7×
LHLabcorp	27.2×
MTDMettler-Toledo International	37.6×
MEDPMedpace	39.2×
RVTYRevvity	75.6×
ILMNIllumina	50.1×
IDXXIDEXX Laboratories	39.4×
WATWaters	113×
IQVIQVIA	34.7×
AAgilent Technologies	34.0×
BIOBio-Rad Laboratories	44.8×
Peer median	39.3×

Where Quest Diagnostics ranks

What the PE ratio tells you

Share price divided by earnings per share over the last twelve months. It is the price tag on a dollar of profit: 20× means you pay $20 for $1 of yearly earnings.

Blank while earnings are negative. A very low PE can mean the market expects profits to fall, so read it with growth and the company's own history.

More on Quest Diagnostics

Valuation data, not investment advice. Prices as of Oct 23, 2026. Reported figures come from the company's filings with the SEC.