Top Analyst Upgrades and Downgrades: Alexion, Ciena, Dell, Dollar General, Dollar Tree, Marvell, PPL, Republic Services, Tesla, VMware, Zscaler and More
Friday's top analyst upgrades and downgrades included Alexion Pharmaceuticals, Ciena, Dell Technologies, Dollar General, Dollar Tree, Marvell Technology, PPL, Republic Services, Tesla, VMware and Zscaler.