Hold on to your smartphone — the holiday price wars between Walmart Inc. and Amazon.com Inc. are heating up.

Walmart U.S. CEO Greg Foran, the architect of the revival of Walmart Inc.’s U.S. stores, is departing to run an airline in his native New Zealand, leaving a big hole at the world’s biggest retailer on the cusp of the holiday season.

Walmart Inc. is weighing the future of JetBlack, a pet project of its online chief that was the first business to emerge from its internal incubation arm.

Walmart Inc., looking to generate more profit from its online unit, wants to start storing and shipping products for third-party vendors for the first time, just as rival Amazon.com Inc. has done for years.

Recession fears may be mounting in certain parts of the U.S. economy, but Walmart Inc. and Target Corp. are signaling that the all-important American consumer is doing just fine.

Walmart Inc. has a hole to fill at its online unit, and whoever assumes the role faces a big challenge ahead. The company is searching for a new chief revenue officer for its U.S. e-commerce business, who would work under online leader Marc Lore to hel…

Amazon.com’s $13.7 billion purchase of Whole Foods Market spawned endless speculation about how the internet giant would change the upscale grocer. Two years later, we’ve got an answer: Ten bucks.

The impact of Target Corp.’s weekend register glitch won’t show up until the retailer discloses quarterly revenue in August, but it could have cost the company about $50 million in lost sales, according to one analyst.

Walmart Inc. has updated the information network used daily by its suppliers to let them submit cost increases that are directly attributable to higher U.S. tariffs on Chinese goods.

Walmart Inc. rose after reporting sales that met analysts’ expectations. Still, concerns are growing that Chinese tariffs could soon force the retailer to raise its famously low prices or sacrifice its bottom line.