The retail and tech giant will expand its training programs to help employees move into more advanced roles.
The company says its finances have wilted as the expected benefits from its $430 million acquisition of ProFlowers have not materialized.
The $18.7 billion deal is a bet on the future of e-commerce and logistics growth.
The retailer fell short on earnings and revenue last quarter and same-store sales dropped more than 3%.
"Walmart is now a major competitive force in e-commerce and is capable of capturing shopper share from Amazon and others.”
U.S. retail sales in the all-important holiday month recorded its biggest drop in more than nine years.
“The question for investors now is if Amazon can grow profits fast enough to make up for slowing revenue growth."
eBay's shares rose 6% after Elliott Management disclosed a 4% stake in the company and unveiled a plan to unlock strategic value.
A report by eMarketer predicts a 6% surge to $1.002 trillion in holiday spending this year, the biggest gain since 2011.
The warning related to IT systems that "support the company’s financial reporting processes" drove Costco's stock down 2.4%.
The retailer's e-commerce revenue increased 8.9% in the second quarter and the channel accounted for 53.9% of total sales.
The U.K. startup has pioneered "building e-commerce marketplaces specifically catering to the luxury fashion and other luxury goods."
