** Shares of Costco Wholesale COST.O rise 1.9% to $945 in extended trading
** Posts net sales of $27.52 bln for the retail month of December, the five weeks ended Jan. 5, up 9.9% from last year
** COST posts total comparable sales of 9.9%, excluding the impact from gas prices and foreign exchange, up from 4.9% reported in November 2024
** Stock had risen ~39% in 2024
(Reporting by Juby Babu in Mexico City)
((Juby.Babu@thomsonreuters.com))