Catch up on today's top five analyst downgrades with this list compiled by The Fly: 1. GameStop (GME) downgraded to Underperform from Neutral at BofA/Merrill by analyst Curtis nagle, who said he no longer believes GameStop's non-gaming segments will be sources of growth or earnings over the next few years and cut estimates well below the Street for 2018. He expects increased earnings pressure in 2019 and beyond as strong sales from the Nintendo Switch and Collectibles expansion, and lower tax rate are lapped. 2. Cloud Peak Energy (CLD) downgraded to Underweight from Neutral at JPMorgan by analyst John Bridges, saying he sees higher risk for the company from lower natural gas prices as production ramps up from the Permian basin. He also believes Cloud Peak has a "lesser diversified production profile" with exposure to thermal coal only. 3. Starbucks (SBUX) downgraded to Neutral from Outperform at Wedbush. 4. ViaSat (VSAT) downgraded to Underweight from Equal Weight at Barclays by analyst Mathieu Robilliard. The analyst sees see continued risk for oversupply in the satellite industry. The sector stock price performance has started to reflect these concerns, apart from ViaSat which has outperformed peers, Robilliard said, adding that he believes the current stock price reflects assumptions that are too optimistic. 5. DiamondRock (DRH) downgraded to Underperform from Neutral at Boenning & Scattergood by analyst Floris van Dijkum following share strength related to the LaSalle Hotel (LHO) bid announcement as he believes shares are not overly discounted relative to hotel peers. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.

Barclays analyst Mathieu Robilliard downgraded ViaSat to Underweight from Equal Weight and cut his price target for the shares to $60 from $75. The analyst sees see continued risk for oversupply in the satellite industry. The sector stock price performance has started to reflect these concerns, apart from ViaSat which has outperformed peers, Robilliard tells investors in a research note. He believes the current stock price reflects assumptions that are too optimistic. ViaSat "could well be one of the winners in the industry but we consider the risk/reward as unattractive," Robilliard writes.

Barclays analyst Mathieu Robilliard downgraded ViaSat to Underweight and lowered his price target for the shares to $60 from $75.