Updated from 3:17 a.m. EST
ISSAQUAH, Wash. (
said same-store sales in December rose 9%, while international same sales gained 25%.
Analysts surveyed by Thomson Reuters expected Costco to post a same-store sales increase in December of 7.9%.
Costco, the warehouse retailer, said total sales for the five weeks ended Jan. 3 rose 11% to $8.26 billion.
In December, Costco's U.S. same-store sales rose 5%.
Costco said it benefited in the month from higher gas prices and stronger foreign currencies.
Excluding these factors, December same-store sales in the U.S. rose 2%, and international same sales gained 10%.
-- Reported by Joseph Woelfel in New York.
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