Walmart's warehouse club ups the pressure on Costco with a new member perk

Joe Raedle/Getty Images Walmart has made a big bet on ultrafast delivery across its US stores. Now the company is bringing the perk to Sam's Club, with a new one-hour service option for members. Sam's Club says its 10 fastest orders were fulfilled in under 12 minutes — way faster than Costco. Walmart is doubling down on ultrafast delivery with a new option at its warehouse chain Sam's Club. On Wednesday, Sam's Club e-commerce head Greg Pulsifer said a new "enhanced" express delivery option ...