Catch up on today's top five analyst downgrades with this list compiled by The Fly: 1. Koppers Holdings (KOP) downgraded to Hold from Buy at Jefferies with analyst Laurence Alexander saying shares will remain range-bound, "at best," amid "depressed" railroad spending. End market growth is unlikely to return until 2020-2021, Alexander tells investors. He lowered his price target for the shares to $40 from $48. 2. iRobot (IRBT) downgraded to Hold on valuation at Canaccord with analyst Bobby Burleson citing the 70% share appreciation year-to-date. He maintained a $90 price target saying he expects only modest upside to estimate for the rest of the year. 3. Molina Healthcare (MOH) downgraded to Sell from Hold at Stifel with analyst Thomas Carroll citing valuation and his belief that the company will have difficulty meeting the Street's expectations on margins, while investors are underestimating the risk to the company's revenues and overestimating the chances of the company selling itself in the near-term. 4. ING Group (ING) downgraded to Hold from Buy at HSBC with analyst Robin Down saying the stock is near fair value after rallying 17% over the past three months. 5. Zebra Technologies (ZBRA) downgraded to Equal Weight from Overweight at Morgan Stanley with analyst James Faucette saying valuation is now appropriate given growth trends and debt load, which are now reflected in 2018 expectations. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage,
click here.