NEW YORK (TheStreet) -- The number of Americans filing for first-time unemployment benefits rose more than forecast, with the biggest one-week gain since April.

Initial jobless claims jumped by 15,000 to 381,000 on a seasonally adjusted basis in the week ended Dec. 24 from a revised 366,000 in the previous week. Economists had expected to see claims rise to 375,000 from the originally reported 364,000 the prior week, according to Thomson Reuters.

Even with the first gain in four weeks, the four-week moving average declined by 5,750 to 375,000 from the previous week's revised average of 380,750.

Unadjusted, there were 490,364 initial claims, a 6.7% drop from the comparable week in 2010.

-- Written by Kaitlyn Kiernan in New York.

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