PayPal downgraded, Roku upgraded: Wall Street's top analyst calls

The most talked about and market moving research calls around Wall Street are now in one place. Here are today's research calls that investors need to know, as compiled by The Fly.Top 5 Upgrades:  Jefferies upgraded Roku (ROKU) to Buy from Hold with a price target of $135, up from $100. The firm sees 20%-plus platform revenue growth in an upside case for Roku. Piper Sandler upgraded Unity (U) to Overweight from Neutral with a price target of $59, up from $43. The firm says the mobile app advertising mar ...