Amazon downgraded, Roblox upgraded: Wall Street's top analyst calls

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: Stephens upgraded Boot Barn (BOOT) to Overweight from Equal Weight with a price target of $237, up from $196. The company has a well-defined, proven earnings growth algorithm with a management team that is "confident, in control and pulling the right levers," says the firm.Citi upgraded Estee Lauder (EL) to Buy fr ...