Benzinga's Top Upgrades, Downgrades For August 18, 2017 By: Benzinga via Benzinga August 18, 2017 at 09:19 AM EDT Top Upgrades Citigroup upgraded MasTec, Inc. (NYSE: MTZ) from Neutral to Buy. MasTec shares rose 1.16 percent to close at ... Read More >> Related Stocks: Approach Res. Inc Blue Apron Holdings Inc Brunswick Corp Floor & Decor Holdings Inc Mastec Inc Matson Inc Monsanto Co Myriad Genetics Inc Nabors Industries Opko Health Inc PNM Resources Inc Pdc Energy Inc Pointer Telocation Quanta Services Raven Industries Inc Tpg Re Finance Trust Inc Transocean Ltd United Rentals Western Alliance Bancorp