Block upgraded, Duolingo downgraded: 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: Rothschild & Co Redburn upgraded Live Nation (LYV) to Buy from Neutral with a price target of $193, up from $166. The firm says Department of Justice's breakup argument is "losing its teeth" and that a settlement is "seemingly on the horizon."UBS upgraded Palantir (PLTR) to Buy from Neutral with an $180 price targ ...