Silver Wheaton (NYSE: SLW) is expected to report Q1 earnings on May 10. Here's what Wall Street wants to see:

The 10-second takeaway
 Comparing the upcoming quarter to the prior-year quarter, average analyst estimates predict Silver Wheaton's revenues will expand 21.9% and EPS will decrease -2.4%.

The average estimate for revenue is $243.4 million. On the bottom line, the average EPS estimate is $0.40.

Revenue details
 Last quarter, Silver Wheaton reported revenue of $287.2 million. GAAP reported sales were 50% higher than the prior-year quarter's $191.9 million.

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

EPS details
 Last quarter, EPS came in at $0.50. GAAP EPS of $0.50 for Q4 were 22% higher than the prior-year quarter's $0.41 per share.

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

Recent performance
 For the preceding quarter, gross margin was 85.0%, 230 basis points worse than the prior-year quarter. Operating margin was 65.2%, 990 basis points worse than the prior-year quarter. Net margin was 61.9%, much worse than the prior-year quarter.

Looking ahead

The full year's average estimate for revenue is $961.6 million. The average EPS estimate is $1.52.

Investor sentiment
 The stock has a four-star rating (out of five) at Motley Fool CAPS, with 2,654 members out of 2,761 rating the stock outperform, and 107 members rating it underperform. Among 427 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 403 give Silver Wheaton a green thumbs-up, and 24 give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Silver Wheaton is outperform, with an average price target of $47.13.

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