Waters PE ratio WAT

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

Today, Oct 23, 2026: 113×
10-year median: 29.2×
Against its 10-year history: 94th; percentile: 0 is its lowest day, 100 its highest
10-year range: 19.8× to 312×
Peer median: 38.4×

Waters' PE ratio is 113× as of Oct 23, 2026: a share price of $453.67 against $4.01 of earnings per share over the last twelve months.

That is above its ten-year median of 29.2×, higher than on 94% of days in the last ten years.

Over that time it ranged from 19.8× in Mar 2020 to 312× in Sep 2018.

The median for 10 diagnostics and research stocks of a similar size is 38.4×.

PE ratio over time

median 29.2×

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	113×	26.6×	113×
2025	35.5×	25.4×	39.6×
2024	35.7×	27.3×	36.9×
2023	29.9×	21.6×	29.9×
2022	29.9×	23.5×	31.8×
2021	33.4×	29.7×	40.0×
2020	31.0×	19.8×	31.3×
2019	28.8×	25.8×	306×
2018	240×	28.6×	312×
2017	28.5×	23.0×	30.2×
2016	22.1×	20.5×	28.1×
2015	23.9×	21.1×	25.2×
2014	23.1×	17.6×	23.5×
2013	17.9×	16.6×	19.8×
2012	18.4×	16.1×	19.8×
2011	16.3×	15.8×	24.1×
2010	20.5×	17.5×	21.2×

Against its peers

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

Company	PE ratio
WATWaters	113×
IDXXIDEXX Laboratories	39.4×
IQVIQVIA	34.7×
AAgilent Technologies	34.0×
ILMNIllumina	50.1×
MTDMettler-Toledo International	37.6×
DGXQuest Diagnostics	25.7×
LHLabcorp	27.2×
MEDPMedpace	39.2×
RVTYRevvity	75.6×
DHRDanaher	40.9×
Peer median	38.4×

Where Waters ranks

#18of 20Diagnostics and research stocks with the lowest PE ratio

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 Waters

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