Earnings Results: Costco stock falls after hours as retailer’s earnings disappoint, online sales fall Posted on December 9, 2022 By Charlielikes Costco Wholesale Corp. stock fell less than 1% in the extended session Thursday after the retailer missed Wall Street expectations for its fiscal first quarter and online sales dropped. Stock Market Tags:– as, ‘after, costco, disappoint, earnings, fall, falls, hours,, market, online, results,, retailers, sales, stock, stock market