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: Barclays upgraded Charles River (CRL) to Overweight from Equal Weight with a price target of $195, up from$165. The firm cites stabilized drug discovery demand and valuation for the upgrade.Barclays upgraded C.H. Robinson (CHRW) to Equal Weight from Underweight with a price target of $130, up from$95. The upgrad ...