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Tetra Tech Inc (TTEK) stock

TTEKNasdaqServices-Engineering ServicesFiscal year ends September 27
Financials through Q3 FY2026, quarter ended Jun 28, 2026Last filing: 10-Q on Jul 31, 2026Score 15/308% below fair value
$37.61−3.04 (-7.48%)

Close on Nov 11, 2026Market cap $9.63BP/E 22.7Yield 0.65%

Tetra Tech Inc saw revenue fall 7.6% to $5.07B over the twelve months to Jun 28, 2026. Operating income rose 65.1% to $611.75M, moving the operating margin from 6.8% to 12.1%. Free cash flow was $547.33M, up 23.5% from a year earlier. At the latest close the market valued the company at $9.63B, 22.7 times its earnings.

Revenue
$5.07B
-7.6% vs. a year earlier
Operating income
$611.75M
+65.1% vs. a year earlier
Free cash flow
$547.33M
+23.5% vs. a year earlier
EPS, diluted
$1.66
+107.5% vs. a year earlier

Key statistics

Valuation at the latest close; fundamentals over the trailing twelve months, balances at Jun 28, 2026

Valuation

Market cap
$9.63B
P/E ratio
22.7
Price to sales
1.90
Price to book
5.20
Dividend yield
0.65%
Free cash flow yield
5.68%

Fundamentals

Revenue
$5.07B
EPS, diluted
$1.66
Free cash flow
$547.33M
Book value per share
$7.13
Diluted shares
260M

Trading

Next earnings
Nov 11, 2026 (estimated, during market hours)
Previous close
$40.65
Open
$40.17
Day's range
$37.08 – $40.33
Volume
11,900,350
Average volume (20 days)
2,737,633
Index membership
S&P MidCap 400, Russell 1000 (since Jun 2022), Russell 3000
Beta (5 years)
0.84
52-week range
$25.81 – $43.14
RSI (14 days)
50.3
Volatility (1 year)
38.0%
Relative volume
4.90×
WACC
8.7%

Index membership is inferred from the holdings of funds that track each index (IJH, SPMD, IWB, IWV), as reported to the SEC for Jun 30, 2026. Join dates come from quarterly fund reports since 2019, so they are accurate to the quarter.

Market cap history

Month-end market cap since 2009, using shares outstanding reported at the time

Total return vs. the S&P 500

Price change plus reinvested dividends, to the close on Nov 11, 2026. The S&P 500 is measured by the SPY fund.

PeriodTTEKS&P 500DifferenceTTEK per yearS&P 500 per year
1 month+12.8%-2.4%+15.2 pts
3 months+6.5%-1.2%+7.7 pts
Year to date+12.8%+12.3%+0.6 pts
1 year+18.5%+12.4%+6.1 pts
3 years+24.3%+78.8%−54.5 pts+7.5%+21.4%
5 years+8.9%+75.2%−66.2 pts+1.7%+11.9%
10 years+409.4%+311.1%+98.3 pts+17.7%+15.2%

Fifteen years at a glance

Fiscal years 2011 to 2025 and trailing twelve months, USD

Revenue

$5.07B-7.6% YoY

Gross profit

$951.81M+2.1% YoY

Operating income

$611.75M+65.1% YoY

EPS, diluted

$1.66+107.5% YoY

Free cash flow

$547.33M+23.5% YoY
Reported periodTrailing twelve months

Press releases

Releases Tetra Tech filed with the SEC as exhibits to Form 8-K or 6-K

All press releases and earnings

About Tetra Tech

Services-Engineering Services

Tetra Tech, Inc. provides consulting and engineering services focusing on water, the environment, and sustainable infrastructure. The company operates through two primary reportable segments: the Government Services Group and the Commercial/International Services Group. Its service offerings span the entire project lifecycle, encompassing environmental monitoring, scientific research, civil infrastructure master planning, architectural and resilient engineering design, information technology, and software solutions. Tetra Tech serves diverse public and private clients, including United States federal, state, and local government bodies, international development agencies, and commercial corporations across energy, industrial, and aerospace markets.

Company profile, executives and history

Tetra Tech stock: common questions

What is Tetra Tech's stock price?

TTEK closed at $37.61 on Nov 11, 2026, down 7.48% on the day. Over the past 52 weeks it traded between $25.81 and $43.14.

What is Tetra Tech's market cap?

Tetra Tech was worth $9.63B at the close on Nov 11, 2026: the share price times the diluted shares outstanding.

What is TTEK's P/E ratio?

TTEK trades at 22.7 times earnings, based on diluted earnings per share of $1.66 over the twelve months to Jun 28, 2026.

How much revenue does Tetra Tech make?

Tetra Tech reported revenue of $5.07B for the twelve months to Jun 28, 2026, down 7.6% from a year earlier.

Does Tetra Tech pay a dividend?

Yes. Tetra Tech paid $0.25 per share over the last twelve months, a yield of 0.65% at the latest price, and has raised its annual dividend 11 years in a row.

When does Tetra Tech report earnings next?

Tetra Tech is expected to report Q4 FY2026 results on Nov 11, 2026, during market hours. The date is estimated from its past reporting pattern until the company confirms it.

How has TTEK stock performed over the past year?

Including dividends, TTEK returned +18.5% over the past year, against +12.4% for the S&P 500.

How many TTEK shares are sold short?

14M shares were sold short at the latest FINRA report, 5.62% of the float, or 6.9 days of average trading volume.

Who are Tetra Tech's competitors?

Companies most similar to Tetra Tech by business, industry and size include STN, ACM, WLDN, VSEC, MG.

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