Nvidia becomes the first company ever to hit a $4T valuation and the Nasdaq notched a record close. But is the rebound starting to feel stretched? Lori Calvasina of RBC joins with her take on positioning. Former USTR official Wendy Cutler on the latest trade headlines. Oppenheimer’s Brian Schwartz on why he upgraded Microsoft and Jefferies’ Sheila Kahyaoglu previews Delta’s earnings.