Walmart shares slip on earnings. The Trade Desk surges on record revenue. Roku rises on an unexpected profit. Fastly falls on growth concerns. Shopify slips. CVS Health treads water. Berkshire-Hathaway makes some big investments. And Marriott suffers a big loss with the death of its CEO, Arne Sorenson. Motley Fool analysts Ron Gross and Jason Moser discuss those stories and weigh in on autonomous driving, big tech break-ups, and the streaming wars. Plus, Ron and Jason share two stocks on their radar: Bluebird Bio and RadNet.

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