Avoid the stress of overpaying for a stock or missing an opportunity by using the right tools and insights to evaluate Tetra Tech, Inc. before investing.

In this article, we go over a few key elements for understanding Tetra Tech, Inc.’s stock price such as:

• Tetra Tech, Inc.’s current stock price and volume
• Why Tetra Tech, Inc.’s stock price changed recently
• Upgrades and downgrades for TTEK from analysts
• TTEK’s stock price momentum as measured by its relative strength

About Tetra Tech, Inc. (TTEK)

Before we jump into Tetra Tech, Inc.’s stock price, history, target price and what caused it to recently dip, let’s take a look at some background.

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.

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Tetra Tech, Inc.’s Stock Price as of Market Close

As of June 05, 2026, 4:00 PM, CST, Tetra Tech, Inc.’s stock price was $27.900.

Tetra Tech, Inc. is down 0.25% from its previous closing price of $27.970.

During the last market session, Tetra Tech, Inc.’s stock traded between $27.780 and $28.630. Currently, there are approximately 260.14 million shares outstanding for Tetra Tech, Inc..

Tetra Tech, Inc.’s price-earnings (P/E) ratio is currently at 16.6, which is low compared to the Commercial Services & Supplies industry median of 22.2. The price-earnings ratio gauges market expectation of future performance by relating a stock’s current share price to its earnings per share.

Tetra Tech, Inc. Stock Price History

Tetra Tech, Inc.’s (TTEK) price is currently up 1.49% so far this month.

During the month of June, Tetra Tech, Inc.’s stock price has reached a high of $28.680 and a low of $26.980.

Over the last year, Tetra Tech, Inc. has hit prices as high as $43.140 and as low as $25.810. Year to date, Tetra Tech, Inc.’s stock is down 16.82%.

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What Caused Tetra Tech, Inc. Stock’s Price to Dip?

Stock prices are primarily based on seller supply and buyer demand. But have you ever wondered about what other factors affect a stock's price?

When an analyst changes their opinion of a stock by upgrading or downgrading their rating, it often leads to a sudden stock price adjustment. As of June 05, 2026, there was 1 analyst who downgraded Tetra Tech, Inc.’s stock and 1 analyst who upgraded over the last month.

Additionally, you'll want to evaluate Tetra Tech, Inc.’s financial health and valuation. Investors can use AAII's Value Grade, which combines six key valuation metrics like P/E and P/S ratios for a comprehensive analysis to conduct analysis on Tetra Tech, Inc.’s valuation and financial health. This approach mitigates the limitations of single-metric evaluations.

Tetra Tech, Inc.’s current valuation based on AAII’s Value Grade is a C, which means it is considered to be Average.

Learn how to evaluate stocks with AAII Grades and Scores with A+ Investor today.

Lastly, news and media coverage as well as recent press reports about the company or its industry may cause stock prices to fluctuate. You can check out the most recent news articles about Tetra Tech, Inc. (TTEK) by visiting AAII Stock Evaluator.

Relative Price Strength of Tetra Tech, Inc.

Relative price strength measures a stock's performance against the market, helping investors identify stocks that are outperforming benchmarks.

For AAII’s Momentum Grade, a weighted relative price strength is calculated. Follow this link to learn more about the Momentum Grade.

As of June 05, 2026, Tetra Tech, Inc. has a weighted four-quarter relative price strength of -13.40%, which translates to a Momentum Score of 20 and is considered to be Very Weak.

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Tetra Tech, Inc. Stock Price: Bottom Line

As of June 5, 2026, Tetra Tech, Inc.’s stock price is $27.900, which is down 0.25% from its previous closing price.

AAII advises against making stock decisions based solely on price or past returns. Instead, consider a variety of metrics, fundamentals, and analytics to evaluate a stock like Tetra Tech, Inc. stock prices are influenced by market supply and demand and offer just a snapshot of a company's overall health.

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