Nvidia, FedEx, and Exxon Mobil are some of today's stocks: Pro Market Movers July 7

Jim Cramer, Steve Volkmann of Jefferies, John Todaro of Needham, Steve Weiss of Short Hills Capital, Jon Najarian of MarketRebellion.com, Jenny Harrington of Gilman Hill Asset Management, Josh Brown of Ritholtz Wealth Management, David Katz of Matrix Asset Advisors, and Victoria Greene of G Squared Private Wealth on why they are buying, selling, or holding specific stocks and ETFs.