Dow, s&p breach key support; uk credit ratings cut as brexit fallout continues


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Loading the player... Brexit fallout continued Monday as U.S. stocks again followed European bourses sharply lower, with steep declines by American Express (AXP) and JPMorgan  (JPM). The


major indexes closed off their intraday lows, but they still finished well in the bottom half of their session ranges. The Nasdaq sank 2.4%, the S&P 500 shed 1.8%, and the Dow Jones


industrial average…