CITRON RESEARCH: 'Time to pop some real bubbles. $ROKU, total joke' (ROKU)

Roku shares have soared more than 200% since their initial public offering in September to more than $45 apiece.
Short seller Andrew Left's Citron Research says the stock is a "total joke" and that it will slide back below $40.
Shares of Roku slumped as much as 2.5% on Tuesday afternoon following some downbeat commentary from short seller Andrew Left's Citron Research. They have recouped those losses and are now higher by 2.45% at $47.66 apiece. 
"Time to pop some real bubbles," the firm's