Tetra Tech PE ratio TTEK

Share price divided by earnings per share over the last twelve months, since 2011.

Today, Oct 23, 2026: 22.3×
10-year median: 29.7×
Against its 10-year history: 10th; percentile: 0 is its lowest day, 100 its highest
10-year range: 15.7× to 113×
Peer median: 26.7×

Tetra Tech's PE ratio is 22.3× as of Oct 23, 2026: a share price of $36.98 against $1.66 of earnings per share over the last twelve months.

That is below its ten-year median of 29.7×, lower than on 90% of days in the last ten years.

Over that time it ranged from 15.7× in May 2026 to 113× in Nov 2016.

The median for 10 engineering and Construction stocks of a similar size is 26.7×.

PE ratio over time

median 29.7×

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	22.3×	15.7×	40.5×
2025	36.6×	29.9×	55.5×
2024	32.4×	31.7×	48.1×
2023	32.7×	23.0×	32.7×
2022	29.8×	25.5×	36.9×
2021	39.9×	33.8×	53.2×
2020	36.6×	23.1×	47.7×
2019	30.4×	21.2×	31.1×
2018	21.2×	19.0×	28.6×
2017	23.6×	20.5×	30.9×
2016	30.4×	30.1×	113×
2015	41.9×	13.9×	45.2×
2014	16.2×	14.5×	353×
2013	486×	13.7×	486×
2012	16.0×	14.9×	19.1×
2011	15.0×	13.2×	17.9×

Against its peers

Companies in Engineering & Construction nearest Tetra Tech's size, closest first, today.

Company	PE ratio
TTEKTetra Tech	22.3×
IESCIES	18.9×
STRLSterling Infrastructure	25.6×
ACMAecom	27.7×
DYDycom Industries	20.4×
MTZMasTec	27.3×
JJacobs Solutions	49.2×
KBRKBR	11.8×
ROADConstruction Partners	32.6×
AGXArgan	26.2×
VSECVSE	51.9×
Peer median	26.7×

Where Tetra Tech 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 Tetra Tech

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