Rockwood Holdings (NYSE: ROC) reported earnings on April 25. Here are the numbers you need to know.

The 10-second takeaway
 For the quarter ended March 31 (Q1), Rockwood Holdings missed estimates on revenues and beat expectations on earnings per share.

Compared to the prior-year quarter, revenue was unchanged and GAAP earnings per share dropped significantly.

Gross margins increased, operating margins increased, net margins dropped.

Revenue details
 Rockwood Holdings reported revenue of $909.5 million. The seven analysts polled by S&P Capital IQ expected to see revenue of $943.4 million on the same basis. GAAP reported sales were 0.5% lower than the prior-year quarter's $914.0 million.

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

EPS details
 Non-GAAP EPS came in at $1.23. The seven earnings estimates compiled by S&P Capital IQ predicted $1.03 per share on the same basis. GAAP EPS of $0.94 for Q1 were 58% lower than the prior-year quarter's $2.24 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 37.7%, 260 basis points better than the prior-year quarter. Operating margin was 18.2%, 280 basis points better than the prior-year quarter. Net margin was 8.3%, 1,120 basis points worse than the prior-year quarter.

Looking ahead
 Next quarter's average estimate for revenue is $1.04 billion. On the bottom line, the average EPS estimate is $1.25.

Next year's average estimate for revenue is $3.87 billion. The average EPS estimate is $4.46.

Investor sentiment
 The stock has a five-star rating (out of five) at Motley Fool CAPS, with 332 members out of 347 rating the stock outperform, and 17 members rating it underperform. Among 126 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 125 give Rockwood Holdings a green thumbs-up, and one give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Rockwood Holdings is outperform, with an average price target of $61.25.