Ecolab (NYSE: ECL) is expected to report Q3 earnings on Oct. 30. 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 Ecolab's revenues will grow 76.8% and EPS will expand 16.0%.

The average estimate for revenue is $3.07 billion. On the bottom line, the average EPS estimate is $0.87.

Revenue details
 Last quarter, Ecolab booked revenue of $2.96 billion. GAAP reported sales were 74% higher than the prior-year quarter's $1.70 billion.

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 $0.72. GAAP EPS of $0.62 for Q2 were 17% higher than the prior-year quarter's $0.53 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 45.7%, 360 basis points worse than the prior-year quarter. Operating margin was 12.5%, 90 basis points worse than the prior-year quarter. Net margin was 6.2%, 120 basis points worse than the prior-year quarter.

Looking ahead

The full year's average estimate for revenue is $11.91 billion. The average EPS estimate is $2.99.

Investor sentiment
 The stock has a four-star rating (out of five) at Motley Fool CAPS, with 265 members out of 279 rating the stock outperform, and 14 members rating it underperform. Among 92 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 90 give Ecolab 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 Ecolab is outperform, with an average price target of $70.36.