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Dow Snaps 6-Day Win Streak as Stocks Give Up Early Gains to End Lower

Rob Lenihan

The Dow Jones Industrial Average snapped its six-day win streak Tuesday as stocks ended lower after a strong opening. tumbled after analysts at JPMorgan cut their rating on the stock amid concerns for its $10 billion valuation. shares rose after its key iPhone assembler said it can make the tech giant's flagship product outside of China, easing concerns that tariffs might disrupt its supply chain.