Tetra Tech (Nasdaq: TTEK) reported earnings on Feb. 1. Here are the numbers you need to know.

The 10-second takeaway
For the quarter ended Jan. 1 (Q1), Tetra Tech beat expectations on revenue and met expectations on earnings per share.

Compared to the prior-year quarter, revenue grew significantly and GAAP earnings per share stayed the same.

Margins shrank across the board.

Revenue details
Tetra Tech booked revenue of $492.1 million. The 16 analysts polled by S&P Capital IQ expected revenue of $472.4 million. Sales were 21% higher than the prior-year quarter's $405.6 million.

Source: S&P Capital IQ. Quarterly periods. Dollar amounts in millions.

EPS details
EPS came in at $0.36. The 15 earnings estimates compiled by S&P Capital IQ predicted $0.36 per share. GAAP EPS of $0.36 for Q1 were 0.0% lower than the prior-year quarter's $0.36 per share.

Source: S&P Capital IQ. Quarterly periods. Figures may be non-GAAP to maintain comparability with estimates.

Margin details
For the quarter, gross margin was 7.3%, 1,140 basis points worse than the prior-year quarter. Operating margin was 7.3%, 120 basis points worse than the prior-year quarter. Net margin was 4.6%, 90 basis points worse than the prior-year quarter.

Looking ahead
Next quarter's average estimate for revenue is $481.8 million. On the bottom line, the average EPS estimate is $0.35.

Next year's average estimate for revenue is $2.01 billion. The average EPS estimate is $1.61.

Investor sentiment
The stock has a five-star rating (out of five) at Motley Fool CAPS, with 406 members out of 418 rating the stock outperform, and 12 members rating it underperform. Among 120 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 118 give Tetra Tech a green thumbs-up, and two give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Tetra Tech is outperform, with an average price target of $26.65.

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