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: Baird upgraded United Rentals (URI) to Outperform from Neutral with a price target of $1,050, up from$888. The firm says multiple fundamental datapoints suggest stabilization in the broader rental industry following two years of deceleration.Jefferies upgraded Sunrun (RUN) to Buy from Hold with a price target of ...