Analysts' Research Calls: Upgrades and Downgrades for Stocks

Block upgraded to Buy by Truist and Rothschild & Co. Redburn, with price targets of $77 and $55, respectively. Vertex Pharmaceuticals upgraded to Buy by Maxim, with a price target of $575. Constellation Brands upgraded to Buy by Citi, with a price target of $175. Extra Space Storage upgraded to Outperform by BNP Paribas, with a price target of $154. Starbucks downgraded to Sector Perform by RBC Capital, with a price target of $105. Trade Desk downgraded to Hold by Stifel, with a price target of $26. CF Industries downgraded to Underperform by Mizuho, with a price target of $100. Duolingo downgraded to Hold by Argus.