FTSE 100 gains, but miners struggle after production updates By: MarketWatch July 20, 2016 at 04:50 AM EDT The U.K.’s FTSE 100 benchmark was up Wednesday, but mining shares were under pressure following a production update from Anglo American. Read More >> Related Stocks: Bhp Billiton Ltd ADR Glencore Internation Rio Tinto Plc ADR