Noranda Aluminum Holding (NYSE: NOR) reported earnings on July 24. Here are the numbers you need to know.

The 10-second takeaway
 For the quarter ended June 30 (Q2), Noranda Aluminum Holding beat expectations on revenues and missed expectations on earnings per share.

Compared to the prior-year quarter, revenue dropped. Non-GAAP earnings per share shrank to a loss. GAAP earnings per share shrank to a loss.

Margins shrank across the board.

Revenue details
 Noranda Aluminum Holding booked revenue of $352.0 million. The three analysts polled by S&P Capital IQ expected to see a top line of $334.8 million on the same basis. GAAP reported sales were 5.3% lower than the prior-year quarter's $371.7 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 -$0.16. The six earnings estimates compiled by S&P Capital IQ forecast -$0.14 per share. Non-GAAP EPS were -$0.16 for Q2 compared to $0.11 per share for the prior-year quarter. GAAP EPS were -$0.18 for Q2 compared to $0.36 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 5.1%, 560 basis points worse than the prior-year quarter. Operating margin was -1.1%, 780 basis points worse than the prior-year quarter. Net margin was -3.5%, much worse than the prior-year quarter. (Margins calculated in GAAP terms.)

Looking ahead
 Next quarter's average estimate for revenue is $338.4 million. On the bottom line, the average EPS estimate is -$0.13.

Next year's average estimate for revenue is $1.36 billion. The average EPS estimate is -$0.31.

Investor sentiment
 The stock has a three-star rating (out of five) at Motley Fool CAPS, with 40 members out of 43 rating the stock outperform, and three members rating it underperform. Among 11 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), nine give Noranda Aluminum Holding 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 Noranda Aluminum Holding is hold, with an average price target of $5.46.

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