
Shares of streaming platform Roku ROKU.O up 3.5% at $109.01 premarket
Jefferies upgrades rating to "buy" from "hold;" raises PT to $135 from $100
Brokerage believes platform revenue growth could be more than 20% YoY vs analysts' estimates of 15%
Says demand-side platform ramps, political tailwinds, subscription momentum, and home screen revamp could help revenue growth
"ROKU screens as one of the cleanest topline revision stories in internet, with both near-term and long-term revenue upside" - Jefferies
As of last close, stock up about 42% YTD