Apple, Twitter, and Devon are some of today's stock picks: Pro Market Movers May 13

Jim Cramer, Toni Sacconaghi at Bernstein Research, Rod Hall of Goldman Sachs, Ranjan Roy of Margins, Shannon Saccocia of SVB Private Bank, Bryn Talkington of Requisite Capital Management, Pete Najarian of MarketRebellion.com, Steve Weiss of Short Hills Capital, and Rob Sechan of NewEdge Capital Group on why they are buying, selling, or holding specific stocks and ETFs.