Trading Ideas for the week of May 15th. Chipotle Mexican Grill (NYSE: CMG) is doing a secondary next week, so apparently someone wants to flip. The stock is up nicely just below 200% of its Initial Public Offering price. Morgan Stanley (NYSE: MS) and S.G.Cowen are the lead managers of this deal. The stock should have some short term upside especially if Burger King is due out next week.