Illumina (Nasdaq: ILMN) reported earnings on Jan. 28. Here are the numbers you need to know.

The 10-second takeaway
 For the quarter ended Dec. 30 (Q4), Illumina beat slightly on revenues and beat slightly on earnings per share.

Compared to the prior-year quarter, revenue grew significantly and GAAP earnings per share grew significantly.

Gross margins dropped, operating margins dropped, net margins expanded.

Revenue details
 Illumina booked revenue of $309.3 million. The 19 analysts polled by S&P Capital IQ predicted a top line of $305.5 million on the same basis. GAAP reported sales were 24% higher than the prior-year quarter's $250.1 million.

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

EPS details
 EPS came in at $0.42. The 22 earnings estimates compiled by S&P Capital IQ anticipated $0.41 per share. GAAP EPS of $0.53 for Q4 were 489% higher than the prior-year quarter's $0.09 per share.

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

Margin details
 For the quarter, gross margin was 67.3%, 210 basis points worse than the prior-year quarter. Operating margin was 20.3%, 560 basis points worse than the prior-year quarter. Net margin was 23.2%, 1,850 basis points better than the prior-year quarter.

Looking ahead
 Next quarter's average estimate for revenue is $301.5 million. On the bottom line, the average EPS estimate is $0.40.

Next year's average estimate for revenue is $1.28 billion. The average EPS estimate is $1.72.

Investor sentiment
 The stock has a four-star rating (out of five) at Motley Fool CAPS, with 673 members out of 719 rating the stock outperform, and 46 members rating it underperform. Among 208 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 200 give Illumina 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 Illumina is outperform, with an average price target of $52.18.

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