ADTRAN (Nasdaq: ADTN) is expected to report Q3 earnings on Oct. 10. 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 ADTRAN's revenues will shrink -15.7% and EPS will compress -67.9%.

The average estimate for revenue is $162.1 million. On the bottom line, the average EPS estimate is $0.18.

Revenue details
Last quarter, ADTRAN recorded revenue of $184.0 million. GAAP reported sales were 0.1% lower than the prior-year quarter's $184.2 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 $0.38. GAAP EPS of $0.33 for Q2 were 41% lower than the prior-year quarter's $0.56 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 51.7%, 630 basis points worse than the prior-year quarter. Operating margin was 14.6%, 1,330 basis points worse than the prior-year quarter. Net margin was 11.5%, 860 basis points worse than the prior-year quarter.

Looking ahead

The full year's average estimate for revenue is $643.1 million. The average EPS estimate is $0.93.

Investor sentiment
The stock has a two-star rating (out of five) at Motley Fool CAPS, with 162 members out of 189 rating the stock outperform, and 27 members rating it underperform. Among 48 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 40 give ADTRAN 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 ADTRAN is underperform, with an average price target of $33.87.

Can your retirement portfolio provide you with enough income to last? You'll need more than ADTRAN. Learn about crafting a smarter retirement plan in "The Shocking Can't-Miss Truth About Your Retirement." Click here for instant access to this free report.

Seth Jayson had no position in any company mentioned here at the time of publication. You can view his stock holdings here. He is co-advisor of Motley Fool Hidden Gems, which provides new small-cap ideas every month, backed by a real-money portfolio. The Motley Fool has no positions in the stocks mentioned above. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.