Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Papa John's (PZZA) upgraded to Buy from Neutral at Longbow. 2. Mylan (MYL) and Endo (ENDP) were upgraded to Outperform from Sector Perform at RBC Capital. 3. Dollar Tree (DLTR) upgraded to Overweight from Neutral at Atlantic Equities. 4. Fluor (FLR) upgraded to Buy from Neutral at UBS with analyst Steven Fisher saying he expects Fluor's backlog to inflect positively in Q3 and rise 35%-40% by the middle of 2019. 5. Viavi (VIAV) upgraded to Buy from Hold at Needham with analyst Alex Henderson saying the company's latest update suggests it is working through its restructuring and realignment issues. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.