Marvell Technology Group (Nasdaq: MRVL) is expected to report Q4 earnings on Feb. 21. 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 Marvell Technology Group's revenues will decrease -2.8% and EPS will contract -38.1%.

The average estimate for revenue is $722.2 million. On the bottom line, the average EPS estimate is $0.13.

Revenue details
 Last quarter, Marvell Technology Group reported revenue of $780.9 million. GAAP reported sales were 18% lower than the prior-year quarter's $950.4 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 $0.20. GAAP EPS of $0.12 for Q3 were 63% lower than the prior-year quarter's $0.32 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 52.0%, 460 basis points worse than the prior-year quarter. Operating margin was 8.6%, 1,150 basis points worse than the prior-year quarter. Net margin was 8.8%, 1,170 basis points worse than the prior-year quarter.

Looking ahead

The full year's average estimate for revenue is $3.12 billion. The average EPS estimate is $0.80.

Investor sentiment
 The stock has a four-star rating (out of five) at Motley Fool CAPS, with 1,396 members out of 1,474 rating the stock outperform, and 78 members rating it underperform. Among 330 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 316 give Marvell Technology Group a green thumbs-up, and 14 give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Marvell Technology Group is hold, with an average price target of $10.05.

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