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: Wells Fargo upgraded Hershey (HSY) to Equal Weight from Underweight with a price target of $182, up from$157. The firm says cocoa prices are down over 50% from the peak this time last year, which is a "welcome development" for Hershey.Goldman Sachs upgraded Coinbase (COIN) to Buy from Neutral with a price target ...