Siliconware Precision Industries (Nasdaq: SPIL) is expected to report Q1 earnings around Feb. 2. 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 Siliconware Precision Industries's revenues will expand 1.6% and EPS will expand 20.0%.

The average estimate for revenue is $520.1 million. On the bottom line, the average EPS estimate is $0.06.

Revenue details
 Last quarter, Siliconware Precision Industries recorded revenue of $555.3 million. GAAP reported sales were 7.1% higher than the prior-year quarter's $518.7 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 $0.09. GAAP EPS of $0.02 for Q4 were 100% higher than the prior-year quarter's $0.01 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 18.9%, 290 basis points better than the prior-year quarter. Operating margin was 10.0%, 150 basis points better than the prior-year quarter. Net margin was 9.7%, 220 basis points better than the prior-year quarter.

Looking ahead

The full year's average estimate for revenue is $2.36 billion. The average EPS estimate is $0.41.

Investor sentiment
 The stock has a three-star rating (out of five) at Motley Fool CAPS, with 594 members out of 618 rating the stock outperform, and 24 members rating it underperform. Among 129 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 127 give Siliconware Precision Industries a green thumbs-up, and two give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Siliconware Precision Industries is outperform, with an average price target of $6.05.

Is Siliconware Precision Industries the best semiconductor stock for you? You may be missing something obvious. Check out the semiconductor company that Motley Fool analysts expect to lead "The Next Trillion-dollar Revolution." Click here for instant access to this free report.