Amazon said it recorded the best single shopping day in its history on Cyber Monday, but what other retailers might benefit from the holiday rush? And Amazon is holding its annual AWS:Invent conference this week. We break down how the company's cloud business stacks up against rival offerings from Google and Salesforce. Plus, shares of Apple resumed their slide Tuesday, after news President Trump was considering tariffs on its iPhones and Macs. And how to trade Tesla after reports sales in China are down 70 percent.