Walmart quietly closes in on Amazon’s biggest lead

For many years, Amazon had a massive infrastructure lead over Walmart. The online company often plunged its profits back into building its shipping and warehousing network — at first to deliver two-day shipping and later to offer, in many cases, one-day delivery. That's something Walmart clearly opted to fix back in 2016, when it decided to spend $3.3 billion to acquire Marc Lore's Jet.com. As part of the move, Lore, a digital pioneer who also sold Diapers.com to Amazon, took over the chain's digital and ...