Why Is TETRA TECH INC NEW (TTEK) Stock Down Today?

Tetra Tech (TTEK) shares fell 7.48% to $37.61 on Thursday. The decline followed the release of fourth-quarter results that exceeded expectations, but the company issued first-quarter and full-year 2027 guidance that fell short of analyst estimates.

What Happened

Tetra Tech reported fourth-quarter adjusted earnings per share of $0.49, beating the consensus estimate of $0.46. Revenue for the quarter reached $1.34 billion, surpassing the expected $1.151 billion by $190 million. Despite the strong quarterly performance, the stock traded lower as the company provided forward-looking guidance that disappointed the market.

For the first quarter of fiscal 2027, Tetra Tech projected adjusted EPS of $0.36 to $0.38, compared to a consensus estimate of $0.39. The company also forecast first-quarter sales of $1.04 billion to $1.08 billion, slightly below the $1.055 billion estimate. For the full fiscal year 2027, the company guided for GAAP EPS of $1.65 to $1.80, against a consensus of $1.71. Total sales for the year are expected to range from $4.425 billion to $4.625 billion, compared to an estimate of $4.497 billion.

What The Data Shows

The stock opened at $40.91, a 0.6% gap up from the prior close of $40.65. It reached a session high of $42.74 at 4:05 PM ET before sliding to a low of $37.08 at 3:30 PM ET. Trading volume reached 9.0 million shares, which is 3.7 times the three-month daily average. The company has a market capitalization of $10.5 billion and a P/E ratio of 24.4. Trailing twelve-month revenue is down 5.2%, with a net margin of 10.0% and a beta of 0.87. The 52-week range is $25.81 to $43.14. On November 11, 2026, the stock printed one fresh 52-week high and 27 fresh 52-week lows.

What To Watch

Investors will monitor the company's upcoming earnings release and how the stock reacts to the lower-than-expected first-quarter guidance. The broader market context, including recent inflation reports, may also influence the stock's near-term direction.