Cisco, Tesla, and Ally are some of today's stocks: Pro Market Movers May 19

Jim Cramer, Gene Munster of Loup Ventures, JJ Kinahan of Tastyworks, Bill Nygren of Oakmark Funds, Bob Peck of Wells Fargo, David Koning of Baird, Brenda Vingiello of Sand Hill Global Advisors, Jim Lebenthal of Cerity Partners, Josh Brown of Ritholtz Wealth Management, and Steve Weiss of Short Hills Capital on why they are buying, selling, or holding specific stocks and ETFs.