Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Chipotle (CMG) upgraded to Outperform from Market Perform at Cowen with analyst Andrew Charles saying he sees upside to expectations for the company's comps and earnings from the growth of its digital sales, growing consumer trend calling for food transparency, higher advertising budget, and the success of its loyalty program. 2. Line Corp. (LN) upgraded to Hold from Underperform at Jefferies. 3. Dynex Capital (DX) upgraded to Outperform from Market Perform at Keefe Bruyette with analyst Eric Hagen saying with both nominal and option-adjusted agency mortgage-backed security spreads wide, it is "hard to overlook" Dynex's attractive valuation. 4. MAA (MAA) upgraded to Sector Perform from Underperform at Scotiabank. 5. Bluebird Bio (BLUE) upgraded to Outperform from Market Perform at SVB Leerink with analyst Mani Foroohar noting the stock has fallen 51% since early March. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.