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: Rothschild & Co Redburn upgraded Coinbase (COIN) to Buy from Neutral with a price target of $417, up from$325. The firm still expects compression in the company's take rate over time, but believes its retail volume growth will help to mitigate this.Wells Fargo upgraded Johnson & Johnson (JNJ) to Overweight from E ...