What’s News in Markets: Super Micro Plunges, Tech Worries, Amazon Rallies

Why are investors concerned about Super Micro Computer? And what caused the sharpest tech selloff in months? Plus, why Amazon’s earnings impressed. Host Jack Pitcher discusses the biggest stock moves of the week and the news that drove them. Sign up for the WSJ's free Markets A.M. newsletter. Learn more about your ad choices. Visit megaphone.fm/adchoices