Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Mylan (MYL) upgraded to Buy from Hold at Argus with analyst Jasper Hellweg saying the stock appears to be close to an inflection after several quarters of underperformance. 2. CopyTele (COPY) upgraded to Outperform from Market Perform at BMO Capital. 3. Voyager Therapeutics (VYGR) upgraded to Strong Buy from Outperform at Raymond James. 4. Athenex (ATNX) upgraded to Overweight from Neutral at JPMorgan with analyst Leon Chik saying more clinical data and progress in new drug trials should boost investor sentiment in 2019. 5. Coty (COTY) upgraded to Outperform from Market Perform at BMO Capital with analyst Shannon Coyne saying that her downgrade in August was driven by concerns around the company's supply chain issues, but believes that these factors have now been fully priced in after the management withdrew its guidance and consensus earnings have been pulled back by about 30%. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.