source:[1] Alphabet downgraded, Boeing upgraded: Wall Street's top analyst calls (https://finance.yahoo.com/news/alphabet-downg ...)[2] Boeing upgraded at Vertical Research on supply-chain gains, cultural shift - Seeking Alpha (https://vertexaisearch.cloud.google.com/groun ...)[3] Boston Scientific stock rating upgraded by Oppenheimer to Outperform - Investing.com (https://vertexaisearch.cloud.google.com/groun ...)