Friday’s Top Analyst Upgrades and Downgrades: Chevron, Citigroup, Costco, Intel, Kinross Gold, Southwest Air, Take-Two Interactive, Teladoc, Vale, Workhorse and More

Friday's top analyst upgrades and downgrades included Chevron, Citigroup, Costco, Intel, Kinross Gold, Southwest Airlines, Take-Two Interactive Software, Teladoc, Teradyne,…