Arch Coal (NYSE: ACI) is expected to report Q2 earnings on July 30. 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 Arch Coal's revenues will compress -13.5% and EPS will remain in the red.

The average estimate for revenue is $919.7 million. On the bottom line, the average EPS estimate is -$0.33.

Revenue details
 Last quarter, Arch Coal logged revenue of $825.5 million. GAAP reported sales were 21% lower than the prior-year quarter's $1.04 billion.

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 -$0.34. GAAP EPS were -$0.33 for Q1 compared to $0.01 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 13.9%, 430 basis points worse than the prior-year quarter. Operating margin was -3.9%, 790 basis points worse than the prior-year quarter. Net margin was -8.5%, 860 basis points worse than the prior-year quarter.

Looking ahead

The full year's average estimate for revenue is $3.54 billion. The average EPS estimate is -$1.34.

Investor sentiment
 The stock has a three-star rating (out of five) at Motley Fool CAPS, with 1,470 members out of 1,547 rating the stock outperform, and 77 members rating it underperform. Among 282 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 264 give Arch Coal a green thumbs-up, and 18 give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Arch Coal is hold, with an average price target of $7.28.

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