Jon C. Ogg |
Top Analyst Upgrades and Downgrades: Altera, Amazon, Chipotle, Halliburton, MGIC, Nokia, SAP, Teva and More
Wednesday's top analyst upgrades, downgrades and initiations include Altera, Amazon.com, Chipotle Mexican Grill, Halliburton, MGIC Investment, Nokia, SAP and Teva…