BALTIMORE (

TheStreet

) --

Constellation Energy

(CEG)

swung to fourth-quarter earnings of $4.42 billion, or $21.96 a share, as the period benefited from a gain of $7.4 billion from the sale of a stake in Constellation Energy Nuclear Group.

Adjusted earnings, excluding items, were 30 cents a share.

Analysts surveyed by Thomson Reuters estimated earnings of 24 cents a share.

A year earlier, Constellation had a loss of $1.41 billion, or $7.75 a share.

Full-year adjusted earnings were $3.36 a share vs. $3.57 a share a year earlier.

Constellation said in a press release Monday it reaffirms 2010 earnings guidance of $3.05 to $3.45 a share and it forecasts 2011 earnings of $3.45 to $3.85 a share. Analysts expect 2010 earnings of $3.36 a share and 2011 earnings of $3.34.

-- Reported by Joseph Woelfel in New York.

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