Cardiovascular Systems (Nasdaq: CSII) is expected to report Q3 earnings on May 1. 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 Cardiovascular Systems's revenues will expand 22.7% and EPS will remain in the red.

The average estimate for revenue is $26.0 million. On the bottom line, the average EPS estimate is -$0.31.

Revenue details
 Last quarter, Cardiovascular Systems logged revenue of $25.3 million. GAAP reported sales were 28% higher than the prior-year quarter's $19.7 million.

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

EPS details
 Last quarter, EPS came in at -$0.28. GAAP EPS were -$0.28 for Q2 compared to -$0.23 per share for the prior-year quarter.

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 76.5%, 40 basis points worse than the prior-year quarter. Operating margin was -20.2%, 160 basis points worse than the prior-year quarter. Net margin was -22.8%, 180 basis points worse than the prior-year quarter.

Looking ahead

The full year's average estimate for revenue is $101.4 million. The average EPS estimate is -$1.11.

Investor sentiment
 The stock has a two-star rating (out of five) at Motley Fool CAPS, with 11 members out of 16 rating the stock outperform, and five members rating it underperform. Among five CAPS All-Star picks (recommendations by the highest-ranked CAPS members), five give Cardiovascular Systems a green thumbs-up, and give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Cardiovascular Systems is buy, with an average price target of $15.30.

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