Integrys Energy Group (NYSE: TEG) reported earnings on May 1. Here are the numbers you need to know.

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

Compared to the prior-year quarter, revenue increased significantly. Non-GAAP earnings per share expanded. GAAP earnings per share grew significantly.

Margins expanded across the board.

Revenue details
 Integrys Energy Group reported revenue of $1.68 billion. The two analysts polled by S&P Capital IQ wanted to see revenue of $1.38 billion on the same basis. GAAP reported sales were 34% higher than the prior-year quarter's $1.25 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 $1.76. The six earnings estimates compiled by S&P Capital IQ anticipated $1.60 per share. Non-GAAP EPS of $1.76 for Q1 were 14% higher than the prior-year quarter's $1.55 per share. (The prior-year quarter included $0.02 per share in earnings from discontinued operations.) GAAP EPS of $2.37 for Q1 were 91% higher than the prior-year quarter's $1.24 per share. (The prior-year quarter included $0.02 per share in earnings from discontinued operations.)

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 22.7%, 320 basis points better than the prior-year quarter. Operating margin was 17.5%, 540 basis points better than the prior-year quarter. Net margin was 11.2%, 330 basis points better than the prior-year quarter. (Margins calculated in GAAP terms.)

Looking ahead
 Next quarter's average estimate for revenue is $879.0 million. On the bottom line, the average EPS estimate is $0.33.

Next year's average estimate for revenue is $4.39 billion. The average EPS estimate is $3.34.

Investor sentiment

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Integrys Energy Group is hold, with an average price target of $57.75.

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