Duke Energy (NYSE: DUK) reported earnings on May 4. Here are the numbers you need to know.

The 10-second takeaway
For the quarter ended March 31 (Q1), Duke Energy beat slightly on revenues and beat expectations on earnings per share.

Compared to the prior-year quarter, revenue contracted slightly and GAAP earnings per share dropped significantly.

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

Revenue details
Duke Energy reported revenue of $3.63 billion. The four analysts polled by S&P Capital IQ anticipated sales of $3.58 billion on the same basis. GAAP reported sales were 1.3% higher than the prior-year quarter's $3.59 billion.

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

EPS details
EPS came in at $0.38. The 13 earnings estimates compiled by S&P Capital IQ anticipated $0.37 per share. GAAP EPS of $0.22 for Q1 were 42% lower than the prior-year quarter's $0.38 per share.

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

Margin details
For the quarter, gross margin was 42.9%, 260 basis points better than the prior-year quarter. Operating margin was 24.6%, 250 basis points better than the prior-year quarter. Net margin was 8.1%, 620 basis points worse than the prior-year quarter.

Looking ahead
Next quarter's average estimate for revenue is $3.39 billion. On the bottom line, the average EPS estimate is $0.31.

Next year's average estimate for revenue is $14.55 billion. The average EPS estimate is $1.43.

Investor sentiment
The stock has a four-star rating (out of five) at Motley Fool CAPS, with 1,859 members out of 1,946 rating the stock outperform, and 87 members rating it underperform. Among 476 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 460 give Duke Energy a green thumbs-up, and 16 give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Duke Energy is hold, with an average price target of $21.54.

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