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Find the latest Tetra Tech, Inc. (TTEK) stock quote, history, news and other vital information to help you with your stock trading and investing.

Jan 10, 2026 · Tetra Tech (TTEK) stock is in focus after the company secured a Missile Defense Agency SHIELD IDIQ contract with a ceiling of up to US$151b, alongside news of an upcoming CEO …

5 days ago · Tetra (TTEK) is at a 52-week high, but can investors hope for more gains in the future? We take a look at the company's fundamentals for clues.

Sep 22, 2025 · Shares of environmental engineering firm Tetra Tech (NASDAQ:TTEK) fell 2.2% in the afternoon session after an analyst note from KeyBanc highlighted investor concerns regarding the …