Sourcefire (Nasdaq: FIRE) 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 Sourcefire's revenues will increase 19.8% and EPS will expand 16.0%.

The average estimate for revenue is $63.8 million. On the bottom line, the average EPS estimate is $0.29.

Revenue details
 Last quarter, Sourcefire booked revenue of $58.8 million. GAAP reported sales were 30% higher than the prior-year quarter's $45.2 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 $0.25. GAAP EPS of $0.04 for Q3 were 43% lower than the prior-year quarter's $0.07 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 77.2%, 40 basis points worse than the prior-year quarter. Operating margin was 7.3%, 40 basis points worse than the prior-year quarter. Net margin was 2.1%, 230 basis points worse than the prior-year quarter.

Looking ahead

The full year's average estimate for revenue is $219.5 million. The average EPS estimate is $0.81.

Investor sentiment
 The stock has a two-star rating (out of five) at Motley Fool CAPS, with 145 members out of 181 rating the stock outperform, and 36 members rating it underperform. Among 51 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 43 give Sourcefire a green thumbs-up, and eight give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Sourcefire is outperform, with an average price target of $57.92.

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