https://www.cnbc.com/2019/04/08/citi-downgrades-roku-sending-shares-tumbling.html

Shares of Roku slipped more than 5 percent Monday after Citi downgraded the stock citing increased competition in the TV streaming space.

Despite being up more than 110% year to date, Citi lowered its overall rating for Roku to sell from neutral and changed its target price to $50 from $53.