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: RBC Capital upgraded Nike (NKE) to Outperform from Sector Perform with a price target of $90, up from$76. The firm sees a "steeper revenue recovery" for Nike than Street estimates reflect with new product contribution and World Cup selling. Needham upgraded Amicus (FOLD) to Buy from Hold with a $14 price targ ...