Synopsys upgraded, Warner Bros. 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: Goldman Sachs upgraded Viking Holdings (VIK) to Buy from Neutral with a price target of $78, up from $66. The firm says the company's "differentiated" geographic exposure and higher-income demographic have offset "choppier" broader cruise trends.RBC Capital upgraded RPM (RPM) to Outperform from Sector Perform with ...