Tetra Tech (Nasdaq: TTEK) reported earnings on Nov. 8. Here are the numbers you need to know.

The 10-second takeaway
For the quarter ended Sep. 30 (Q4), Tetra Tech met expectations on revenues and missed estimates on earnings per share.

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

Gross margins dropped, operating margins contracted, net margins grew.

Revenue details
Tetra Tech chalked up revenue of $536.3 million. The 12 analysts polled by S&P Capital IQ looked for sales of $543.3 million on the same basis. GAAP reported sales were 13% higher than the prior-year quarter's $475.9 million.

Source: S&P Capital IQ. Quarterly periods. Dollar amounts in millions. Non-GAAP figures may vary to maintain comparability with estimates.

EPS details
EPS came in at $0.47. The 13 earnings estimates compiled by S&P Capital IQ forecast $0.49 per share. GAAP EPS of $0.47 for Q4 were 12% higher than the prior-year quarter's $0.42 per share.

Source: S&P Capital IQ. Quarterly periods. Non-GAAP figures may vary to maintain comparability with estimates.

Margin details
For the quarter, gross margin was 16.5%, 390 basis points worse than the prior-year quarter. Operating margin was 5.8%, 330 basis points worse than the prior-year quarter. Net margin was 5.7%, 20 basis points better than the prior-year quarter.

Looking ahead
Next quarter's average estimate for revenue is $522.7 million. On the bottom line, the average EPS estimate is $0.41.

Next year's average estimate for revenue is $2.18 billion. The average EPS estimate is $1.90.

Investor sentiment
The stock has a five-star rating (out of five) at Motley Fool CAPS, with 400 members out of 412 rating the stock outperform, and 12 members rating it underperform. Among 99 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 97 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 $31.64.

This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.