CoreCivic falls after CEO resigns
** Shares of private prison operator CoreCivic CXW.N down 3% to $33.4 premarket
** Patrick D. Swindle resigned as president, CEO and board member due to health reasons
** CXW appointed Lucibeth N. Mayberry as president, CEO and director
** CoreCivic is one of the largest private contractors for ICE and manages ICE detention facilities across the US
** All 4 brokerages covering the stock rate it "buy"; their median PT is $42
** As of last close, CXW stock up 79.8% YTD