What is TTEK's market cap?

$10.39B, based on the Nov 5 close of $40.56.

What is TTEK's P/E ratio?

23.8× trailing-twelve-month earnings of $435.98M.

Does Tetra Tech pay a dividend?

Yes. The latest regular dividend was $0.072 per share (ex-date Aug 13), an annualised yield of 0.71%.

How much of TTEK is sold short?

12.8M shares, 5.0% of float, as of Oct 15, 2026.

What sector is TTEK in?

Industrials, in the Engineering Services industry.

NASDAQ · TTEKIndustrialsEngineering Services

Tetra Tech Inc (TTEK)

$40.56−0.93%

Close Nov 5, 2026 · split-adjusted

Nov 2, 2026$39.57▲ 24.20% in range

Nov 3, 2025Low $26.18 · High $42.61Nov 2, 2026

What changed · written from our data

As of Nov 5, 2026

Tetra Tech closed at $40.56 on Nov 5, down 0.93%, 4.8% below its 52-week closing high. Volume of 3.2M shares was 1.57× its 20-day average (above normal).

Split-adjusted performance: +24.0% over one month, +32.2% over six months, +26.4% over one year.

In the quarter ended Jun 28, 2026, revenue was $1.31B, down 4.5% from a year earlier, with a net margin of 8.4%.

Short interest was 12.8M shares at the Oct 15 settlement, up 7.5% from the prior report (5.0% of float, 6.8 days to cover).

Market cap$10.39B256.0M shares

Revenue · quarter$1.31B−4.5% YoY

Diluted EPS$0.42−2.3% YoY

P/E · TTM23.8×P/S 2.0×

Net margin8.4%Gross 18.6%

Dividend yield0.71%$0.072 last paid

52-week range26.18 – 42.61−4.8% from high

Volume3.2M1.57× 20-day avg

Volatility · 60d25.2%Annualised

Short % of float5.0%6.8 days to cover

Net cash-$570.2MCash $230.8M

Next earnings—Not scheduled

Split-adjusted performance

1W +6.5%1M +24.0%3M +14.4%6M +32.2%YTD +20.9%1Y +26.4%3Y +34.4%5Y +16.7%

Earnings reactions

History →

No reported quarters with price history yet.

Rank within Engineering Services

Percentile among 7 companies (100 = best)

6-month momentum—

Revenue growth—

Net margin—

Value (low P/E)—

Size—

Industry medians: 6-month return −13.3%, revenue growth −4.5%, net margin 6.4%, P/E 26.8×.

Short interest

Details →

Shares short12.8M+7.5% vs prior

Days to cover6.8Settled Oct 15

% of float5.0%

Short vol. 10d48.7%of daily volume

Closest peers by size in Engineering Services

Company	Price	Today	6M	Rev. growth	Net margin	P/E	Mkt cap
TTEKTetra Tech	$40.56	−0.93%	+32.2%	−4.5%	8.4%	23.8	$10.39B
ACMAecom	$66.72	−2.17%	−18.1%	−14.2%	−2.4%	29.8	$8.59B	Compare
VSECVSE	$164.71	+0.46%	−17.4%	+65.0%	6.4%	61.6	$4.62B	Compare
WLDNWilldan Group	$70.85	−4.51%	−4.9%	+33.2%	10.5%	16.5	$1.08B	Compare
MGMistras Group	$20.14	−0.44%	+7.5%	+4.6%	3.4%	30.8	$641.8M	Compare
ACFNAcorn Energy	$14.53	−9.75%	−13.3%	−29.4%	11.8%	23.9	$36.8M	Compare
OFALOFA Group	$0.2350	−18.63%	−96.7%	−21.5%	−12783.2%	—	$1.5M	Compare

News about Tetra Tech

All news →

CECO vs. Tetra Tech: Which Industrial Stock Has Greater Upside?Zacks Investment Research · Sep 30, 2026▲ Positive

Quick answers

What does Tetra Tech do?: Tetra Tech Inc provides consulting and engineering services for environmental, infrastructure, resource management, energy, and international development markets. It specializes in providing water-related services for public and private clients.
What is TTEK's market cap?: $10.39B, based on the Nov 5 close of $40.56.
What is TTEK's P/E ratio?: 23.8× trailing-twelve-month earnings of $435.98M.
Does Tetra Tech pay a dividend?: Yes. The latest regular dividend was $0.072 per share (ex-date Aug 13), an annualised yield of 0.71%.
How much of TTEK is sold short?: 12.8M shares, 5.0% of float, as of Oct 15, 2026.
What sector is TTEK in?: Industrials, in the Engineering Services industry.

About Tetra Tech

Tetra Tech Inc provides consulting and engineering services for environmental, infrastructure, resource management, energy, and international development markets. It specializes in providing water-related services for public and private clients. It designs infrastructure, facilities, and other structures with complex plans and resource management. it has two reportable segments. Its Government Services Group (GSG) segment includes activities with U.S. government clients (federal, state and local) and activities with development agencies world-wide. Commercial/International Services Group (CIG) segment, which derives maximum revenue, includes activities with U.S. commercial clients and international clients other than development agencies.

HQ: Pasadena, CA25,000 employeesListed Dec 1, 1991tetratech.com

Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology