Supertex (Nasdaq: SUPX) is expected to report Q4 earnings on May 8. 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 Supertex's revenues will drop -14.3% and EPS will contract -18.2%.

The average estimate for revenue is $14.1 million. On the bottom line, the average EPS estimate is $0.09.

Revenue details
Last quarter, Supertex reported revenue of $14.4 million. GAAP reported sales were 2.2% higher than the prior-year quarter's $14.1 million.

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

EPS details
Last quarter, non-GAAP EPS came in at $0.18. GAAP EPS of $0.12 for Q3 were much 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 50.9%, much better than the prior-year quarter. Operating margin was 5.3%, much better than the prior-year quarter. Net margin was 10.0%, 930 basis points better than the prior-year quarter.

Looking ahead

The full year's average estimate for revenue is $60.4 million. The average EPS estimate is $0.44.

Investor sentiment
The stock has a five-star rating (out of five) at Motley Fool CAPS, with 92 members out of 103 rating the stock outperform, and 11 members rating it underperform. Among 29 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 28 give Supertex a green thumbs-up, and one give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Supertex is outperform, with an average price target of $19.00.

Is Supertex 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.