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Tetra Tech Inc (TTEK) stock analysis

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%

StockData Score

Prices as of Nov 11, 2026How the score works

Value4Growth3Performance1Health4Dividend3

Solid15 of 30 checks passed

Tetra Tech passes 15 of the 30 checks behind our score; 7 could not be run for lack of data and count as not passed. Each dot in the shape is one check — hover it for the numbers.

Valuation
4/6
Growth
3/6
Past performance
1/6
Financial health
4/6
Dividend
3/6

What stands out

  • Trading below fair value

    The share price of $37.61 is below our fair value estimate of $40.90.

  • Return on capital over 10%

    Return on invested capital was 18.8%, above the 10% that usually covers the cost of capital.

  • Revenue growing 10%+ a year

    Revenue grew 15.8% a year over the last three fiscal years.

  • Interest well covered

    Operating income covers interest expense 15.4 times.

What to watch

  • Margin of safety under 20%

    The price is 8.1% below fair value, less than the 20% cushion we look for.

  • High debt

    Debt is 43.3% of shareholders' equity, above the 40% we consider low.

  • EPS growing under 10% a year

    Diluted EPS grew -1.4% a year over the last three fiscal years.

  • P/B above the industry

    Tetra Tech's price-to-book of 5.20 is above the Engineering, Accounting, Research, Management, and Related Services median of 2.71.

Valuation4/6
  • P/E below its 5-year median

    Tetra Tech's P/E of 22.7 is below its own 5-year median of 31.8.

  • P/E below the industry

    Tetra Tech's P/E of 22.7 is below the Engineering, Accounting, Research, Management, and Related Services median of 25.2.

  • EV/EBITDA below its 5-year median

    Tetra Tech's EV/EBITDA of 15.2 is below its 5-year median of 22.2.

  • P/B above the industry

    Tetra Tech's price-to-book of 5.20 is above the Engineering, Accounting, Research, Management, and Related Services median of 2.71.

  • Trading below fair value

    The share price of $37.61 is below our fair value estimate of $40.90.

  • Margin of safety under 20%

    The price is 8.1% below fair value, less than the 20% cushion we look for.

Growth3/6
  • Revenue growing 10%+ a year

    Revenue grew 15.8% a year over the last three fiscal years.

  • EPS growing under 10% a year

    Diluted EPS grew -1.4% a year over the last three fiscal years.

  • Earnings acceleration

    Needs positive net income now, a year ago and five years ago.

  • Growing slower than the industry

    Revenue grew -7.6% over the last twelve months; the Engineering, Accounting, Research, Management, and Related Services median is 0.2%.

  • Guidance raised

    Tetra Tech raised its fiscal 2026 adjusted EPS outlook on Jul 29, 2026.

  • Gross margin improving

    Gross margin was 18.8% over the last twelve months, against 17.0% a year earlier.

Past performance1/6
  • Return on equity

    Needs positive equity and five years of results.

  • Return on capital over 10%

    Return on invested capital was 18.8%, above the 10% that usually covers the cost of capital.

  • Return on equity against the industry

    Needs positive equity.

  • Earnings over 5 years

    Needs positive net income five years ago and in the latest year.

  • Net margin against its history

    Needs five years of revenue and net income.

  • Net margin against the industry

    Needs revenue and net income.

Financial health4/6
  • High debt

    Debt is 43.3% of shareholders' equity, above the 40% we consider low.

  • Debt rising against equity

    Debt to equity rose from 28.1% five years ago to 43.3%.

  • Debt covered by cash flow

    Operating cash flow over the last twelve months equals 70.8% of total debt.

  • Interest well covered

    Operating income covers interest expense 15.4 times.

  • Short-term assets cover short-term debts

    Current assets are 1.18 times current liabilities.

  • Low bankruptcy risk

    The Altman Z-score is 4.58; above 3 is the safe zone and below 1.8 the distress zone.

Dividend3/6
  • Pays a dividend

    Tetra Tech paid dividends worth 0.7% of the share price over the last twelve months.

  • Yield below Treasuries

    The 0.7% yield is below the 4.4% on a 1-year Treasury.

  • Yield below the top quarter

    The top quarter of US dividend payers yield 3.8% or more; Tetra Tech yields 0.7%.

  • Dividend not cut

    The dividend per share has not fallen by more than 10% in any of the last 10 fiscal years.

  • Earnings cover

    Needs dividends paid and net income.

  • Covered by free cash flow

    Dividends take 12.7% of free cash flow.

Scores of similar companies

Our estimate per share

$40.90

The share price is 8% below this estimate.

20%+ below
Near fair value
20%+ above
$37.61Price
MethodMultiple usedOwn 5Y medianIndustry medianValue per shareWeight
P/E28.6×31.8×25.2×$47.4040%
EV/EBITDA18.8×22.2×15.3×$46.8535%
P/B4.3×5.9×2.7×$31.3610%
Earnings power9.1% cost of equity––$16.0915%
Fair value$40.90100%

Valuation over time

Using the earnings and balance sheet published at each date, not today's.

  • P/E at month end
  • Own 5-year median 31.8
  • Engineering, Accounting, Research, Management, and Related Services median 25.2

An estimate from reported numbers and market multiples, not a price target or investment advice. It can be far off for companies whose profits are about to change sharply.

Market risk

From the past year of daily prices.

Liquidity

Low risk

Average value traded per day
$90.17M
Value traded per 1% price move
$69.07M

Downside

Medium risk

Typical loss in a bad month
17.7%
Volatility (annualized)
38%
Sharpe ratio, 1 year
0.34
Beta to the S&P 500 (5Y)
0.84

Typical bad-month loss, week by week

25%: high

Margins

Share of revenue, fiscal years 2011 to 2025

Gross margin

17.7%+2.8 pts over 5 years

Operating margin

7.5%−0.5 pts over 5 years

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