Shares of Roku Inc. sank again Friday, putting them on track for their worst weekly performance this year, as investors continued to express concern over increasing competition and an extreme valuation.

source https://finance.yahoo.com/m/c614802f-3669-3ba8-a791-0185b2ca8a35/roku%E2%80%99s-stock-still-reeling-as.html?.tsrc=rss