Steel ETFs In Focus As Miners Slash Iron Ore Forecast By: Blogs - TalkMarkets October 21, 2016 at 15:01 PM EDT Two of the world’s largest iron ore producers – Vale SA and Rio Tinto plc. – slashed their iron ore outlook. Read More >> Related Stocks: Rio Tinto Plc S&P 500 Materials Sector SPDR S&P Depository Receipts Steel Vaneck ETF Vale ADR Representing One Ord Shs