Westport Innovations (Nasdaq: WPRT) reported earnings on Nov. 8. Here are the numbers you need to know.

The 10-second takeaway
 For the quarter ended Sep. 30 (Q3), Westport Innovations met expectations on revenues and missed expectations on earnings per share.

Compared to the prior-year quarter, revenue dropped slightly and GAAP loss per share grew.

Margins dropped across the board.

Revenue details
 Westport Innovations tallied revenue of $77.2 million. The 11 analysts polled by S&P Capital IQ wanted to see net sales of $76.7 million on the same basis. GAAP reported sales were 6.0% lower than the prior-year quarter's $81.0 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 -$0.60. The 12 earnings estimates compiled by S&P Capital IQ anticipated -$0.41 per share. GAAP EPS were -$0.52 for Q3 versus -$0.27 per share for the prior-year quarter.

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 27.8%, 750 basis points worse than the prior-year quarter. Operating margin was -27.6%, 2,470 basis points worse than the prior-year quarter. Net margin was -38.0%, 2,180 basis points worse than the prior-year quarter.

Looking ahead
 Next quarter's average estimate for revenue is $89.5 million. On the bottom line, the average EPS estimate is -$0.36.

Next year's average estimate for revenue is $356.8 million. The average EPS estimate is -$1.30.

Investor sentiment
 The stock has a five-star rating (out of five) at Motley Fool CAPS, with 1,692 members out of 1,734 rating the stock outperform, and 42 members rating it underperform. Among 268 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 259 give Westport Innovations a green thumbs-up, and nine give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Westport Innovations is outperform, with an average price target of $43.76.