21Vianet Group (Nasdaq: VNET) is expected to report Q2 earnings on Aug. 16. 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 21Vianet Group's revenues will improve 62.4% and EPS will improve 100.0%.

The average estimate for revenue is $58.1 million. On the bottom line, the average EPS estimate is $0.12.

Revenue details
Last quarter, 21Vianet Group reported revenue of $54.7 million. GAAP reported sales were 71% higher than the prior-year quarter's $32.2 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, non-GAAP EPS came in at $0.12. GAAP EPS were -$0.05 for Q1 versus -$0.35 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 28.4%, 220 basis points better than the prior-year quarter. Operating margin was 9.3%, 170 basis points better than the prior-year quarter. Net margin was -4.7%, 1,260 basis points better than the prior-year quarter.

Looking ahead
The full year's average estimate for revenue is $247.4 million. The average EPS estimate is $0.48.

Investor sentiment
The stock has a two-star rating (out of five) at Motley Fool CAPS, with 25 members out of 30 rating the stock outperform, and five members rating it underperform. Among five CAPS All-Star picks (recommendations by the highest-ranked CAPS members), four give 21Vianet Group a green thumbs-up, and one gives it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on 21Vianet Group is outperform, with an average price target of $17.33.

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