(Nasdaq: AMZN) reported earnings on Jan. 31. Here are the numbers you need to know.

The 10-second takeaway
For the quarter ended Dec. 31 (Q4), missed estimates on revenue and beat expectations on earnings per share.

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

Gross margins increased, operating margins contracted, and net margins dropped.

Revenue details chalked up revenue of $17.43 billion. The 33 analysts polled by S&P Capital IQ looked for revenue of $18.26 billion. Sales were 35% higher than the prior-year quarter's $12.95 billion.

Source: S&P Capital IQ. Quarterly periods. Dollar amounts in millions.

EPS details
EPS came in at $0.38. The 31 earnings estimates compiled by S&P Capital IQ forecast $0.18 per share. GAAP EPS of $0.38 for Q4 were 58% lower than the prior-year quarter's $0.91 per share.

Source: S&P Capital IQ. Quarterly periods. Figures may be non-GAAP to maintain comparability with estimates.

Margin details
For the quarter, gross margin was 20.7%, 40 basis points better than the prior-year quarter. Operating margin was 1.5%, 220 basis points worse than the prior-year quarter. Net margin was 1.0%, 220 basis points worse than the prior-year quarter.

Looking ahead
Next quarter's average estimate for revenue is $13.41 billion. On the bottom line, the average EPS estimate is $0.35.

Next year's average estimate for revenue is $65.60 billion. The average EPS estimate is $1.84.

Investor sentiment
The stock has a three-star rating (out of five) at Motley Fool CAPS, with 4,991 members out of 6,192 rating the stock outperform, and 1,202 members rating it underperform. Among 1,642 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 1,392 give a green thumbs-up, and 250 give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on is outperform, with an average price target of $233.06.

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