Overall verdict
Buy
6.9/10
1-year performance
+1.80%
Score breakdown
Up 1.8% over 1 year, 46% of the 52-week range.
Strongest: Profitability 10.0/10. Weakest: Growth 4.4/10.
8 analysts, target +0.2% vs the price.
Tetra Tech, Inc. provides consulting and engineering services focusing on water, environment, and sustainable infrastructure in the United States and internationally. The company operates through two segments, Government Services Group (GSG) and Commercial/International Services Group (CIG). The GSG segment offers consulting and engineering services, including water resources analysis and water management, environmental monitoring, data analytics, government consulting, waste management, and civil infrastructure master planning and resilient engineering design for facilities, as well as transportation and local development projects primarily to government clients, including federal, state, and local, as well as international development agencies.
It also offers sustainable solutions, such as energy management consulting, and greenhouse gas inventory assessment, certification, reduction, and management services. The CIG segment provides consulting and engineering services, including natural resources, energy, and utilities, as well as sustainable infrastructure master planning and engineering design for facilities ; and transportation and local development projects to commercial and international clients, including the commercial and government sectors.
The company offers early data collection and monitoring, data analysis and information management, science and engineering applied research, engineering design, project management, and operations and maintenance services ; climate change consulting ; greenhouse gas inventory assessment, certification, reduction, and management services ; environmental remediation and reconstruction services, industrial water treatment and reuse services ;
and engineering services, such as data centers, advanced manufacturing, security systems, training and audiovisual facilities, clean rooms, laboratories, medical facilities, and disaster preparedness facilities. The company was founded in 1966 and is headquartered in Pasadena, California.
Sector
Industrials
Industry
Commercial Services and Supplies
Primary listing
Nasdaq
United States
CEO
Roger Argus
Founded
1966
Employees
25 000
Revenue / employee
217 704 USD
Next earnings
November 11, 2026 (estimated)
Institutional holders
- BlackRock, Inc.11.13%
- VANGUARD PORTFOLIO MANAGEMENT LLC4.84%
- VANGUARD CAPITAL MANAGEMENT LLC4.55%
- Capital International Investors4.52%
- STATE STREET CORP3.79%
- FMR LLC3.40%
- CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM3.25%
- GEODE CAPITAL MANAGEMENT, LLC2.65%
- FIL Ltd2.12%
- Other institutions61.12%
553 13F filings as of June 30, 2026: US managers above $100M, filed up to 45 days after quarter end. No insiders, no retail. A share on loan is declared by its lender and by whoever bought it from the short seller, so the total can exceed 100%.
Research uses the underlying stock’s market history. The purchase quote is calculated separately when you review your order.
52-week high
43.14 USD
52-week low
25.81 USD
1-year performance
1.80%
Rising
Year-to-date performance
0.86%
Rising
Drawdown
-21.88%
Marked drawdown
Position in the 52-week range
46% of range
Against the world ETF
Over 17 years, from September 2009 to August 2026, the share did not clearly beat the world ETF once risk is accounted for. It earned more, but shaking 2.1 times harder: for the risk taken, the ETF paid better.
$10,000 placed at the end of September 2009 are worth today
| Tetra Tech | $68,102 |
| World ETF | $59,358 |
| S&P 500 | $97,863 |
| Risk-free placement | $12,789 |
The risk
- Shaking:the share moves 2.1 times as much as the world ETF.
- Worst fall:-48 % between October 2024 and May 2026. $10,000 placed at the top fell to $5,182. The world ETF, at worst: -34 %. The share has not returned to its high yet.
Tetra Tech earned more than the world ETF since 2009
Value of $10,000 placed at the end of September 2009, dividends reinvested, in dollars
- Tetra Tech: $68,102
- World ETF: $59,358
- S&P 500: $97,863
- Risk-free placement: $12,789
Share price without dividends; the world ETF and the index reinvest theirs. A dividend payer is therefore understated here.
Based on past performance. This is not a recommendation.
Range: 36.00 USD - 38.24 USD (3 methods agree)
The price implies growth of 1.94% per year; the company grows at 7.97%.
Quality and profitability
10.0/10Gross margin 18.8%, net margin 8.6%, ROIC 15.7%, ROE 24.3%.
Net margin
8.60%
Exceptional
Sector 5.30%|S&P 12.97%
Gross margin
18.78%
Fair
Return on equity (ROE)
24.26%
Exceptional
Sector 5.44%|S&P 16.52%
Return on invested capital (ROIC)
15.71%
Exceptional
Free cash flow margin (FCF)
10.81%
Exceptional
Profit-to-cash conversion (FCF conversion)
1.26x
Exceptional
Margin stability
1.4 pts
Very steady
Revenue to net income
Growth
4.4/10Revenue down 4.5% over 1 year, 12.7% a year over 5, EPS 8.0% a year over 5.
Revenue (trailing 12 months)
5.1Md USD
Revenue growth (1y)
-4.47%
Declining
Revenue growth (3y)
55.32%
Strong
EPS growth (1y)
-1.86%
Declining
EPS CAGR (5y)
7.97%
Fair
EPS revisions (3 months)
2.21%
Revised up
Valuation
5.6/10P/E 20.3x, forward P/E 20.8x, EV/EBITDA 13.8x, PEG 2.54. The multiple sits in the 73th percentile of its own 5-year history.
P/E (TTM)
20.3x
Fair
Sector 22.4x|S&P 23.0x
Forward P/E
20.8x
Fair
EV / EBITDA
13.8x
Fair
Sector 13.6x|S&P 14.6x
PEG
2.54
Very expensive
Sector 0.68|S&P 0.86
Fair value (reverse DCF)
37.12 USD
Undervalued
P/E vs its own 5-year history
among the 27% highest valuations
Pricier than usual
Market cap
8.7Md USD
Financial strength
8.4/10Cash covers 22.6% of the debt, net debt/EBITDA 1.2x.
Net debt / EBITDA
1.2x
Very solid
Gearing (net debt / equity)
42.79%
Solid
Cash
231M USD
Cash / market cap
2.66%
Stretched
Cash / total debt
22.55%
Tight
Interest coverage
15.4x
Very solid
Net debt
793M USD
Equity
1.9Md USD
Closed daily candles, 2 years
Last close on September 29, 2026: 33.70 USD
- MM2035.52
- MM5035.04
- MM20033.05
- RSI 1434.9
Top panel: closed candles, 20, 50 and 200-day moving averages, with volume in grey. Bottom panel: 14-day RSI with dashed 30 and 70 levels.
200-day average slope, 1 month
+0.34%
200-day average slope, 3 months
+0.24%
50-day average slope, 1 month
+7.19%
Price structure
higher-low
Bullish RSI divergence
No
20-day volatility
1.21 % per day
Volatility change
-30.25%
Forecasts by fiscal year
| Fiscal year | EPS | Normalised EPS | Revenue | EBITDA | Net income |
|---|---|---|---|---|---|
| 2027 | 1.73 (4) | 1.74 (7) | 4 543 (7) | 699 (6) | 433 (2) |
Amounts in millions of USD, EPS in USD per share. In brackets, the number of analysts. Consensus as of September 21, 2026.
Same sub-industry: 128 companies behind the medians.
| # | Company | Code | Country | Overall / 10 | Fundamentals / 10 | Mkt cap | P/E | Net margin | Revenue growth | ROIC | Net debt / EBITDA | FCF yield | 1-year perf. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | CLH | 7.6 | 7.2 | 16.5Md USD | 38.0x | 7.0 % | 11.9 % | 7.6 % | 2.0x | 2.8 % | 34.5 % | ||
| 2 | TTEK | 6.9 | 7.1 | 8.7Md USD | 20.3x | 8.6 % | -4.5 % | 15.7 % | 1.2x | 6.3 % | 1.8 % | ||
| 3 | VLTO | 6.9 | 6.9 | 23.7Md USD | 24.5x | 17.3 % | 7.5 % | 17.8 % | 0.6x | 4.4 % | -8.4 % | ||
| 4 | RSG | 6.8 | 7.1 | 64.9Md USD | 30.0x | 12.9 % | 4.6 % | 8.7 % | 2.6x | 4.1 % | -7.0 % | ||
| 5 | ROL | 6.8 | 7.5 | 14.4Md USD | 27.3x | 13.6 % | 7.9 % | 24.1 % | 1.1x | 4.3 % | -46.6 % | ||
| 6 | WM | 6.7 | 6.6 | 82.7Md USD | 29.3x | 11.1 % | 4.0 % | 8.9 % | 3.1x | 4.3 % | -6.2 % | ||
| 7 | WCN | 6.3 | 6.4 | 39.2Md USD | 38.6x | 10.9 % | 2.0 % | 6.1 % | 3.0x | 2.9 % | -8.7 % | ||
| 8 | RTO | 5.1 | 6.0 | 10.3Md USD | 21.6x | 4.5 % | 1.2 % | 3.3 % | 2.5x | 7.3 % | -14.7 % | ||
| 9 | GFL | 4.4 | 2.4 | 18.4Md USD | Not meaningful (loss) | -2.6 % | 16.3 % | -1.1 % | 4.4x | 1.5 % | -9.8 % |
