Duke Energy (NYSE: DUK) filed its 10-K on March 1. Here are the numbers you need to know.

The 10-second takeaway
 For the quarter ended Dec. 31 (Q4), Duke Energy beat expectations on revenues and beat expectations on earnings per share.

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

Margins shrank across the board.

Revenue details
 Duke Energy logged revenue of $5.70 billion. The five analysts polled by S&P Capital IQ predicted a top line of $5.55 billion on the same basis. GAAP reported sales were 65% higher than the prior-year quarter's $3.30 billion.

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 $0.70. The 16 earnings estimates compiled by S&P Capital IQ predicted $0.64 per share. Non-GAAP EPS of $0.70 for Q4 were 2.8% lower than the prior-year quarter's $0.72 per share. GAAP EPS of $0.61 for Q4 were 4.7% lower than the prior-year quarter's $0.64 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 38.4%, 20 basis points worse than the prior-year quarter. Operating margin was 16.2%, 20 basis points worse than the prior-year quarter. Net margin was 8.0%, 70 basis points worse than the prior-year quarter.

Looking ahead
 Next quarter's average estimate for revenue is $5.78 billion. On the bottom line, the average EPS estimate is $1.07.

Next year's average estimate for revenue is $25.02 billion. The average EPS estimate is $4.34.

Investor sentiment
 The stock has a four-star rating (out of five) at Motley Fool CAPS, with 1,871 members out of 1,961 rating the stock outperform, and 90 members rating it underperform. Among 509 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 494 give Duke Energy a green thumbs-up, and 15 give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Duke Energy is outperform, with an average price target of $68.53.

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