Dow surges 557 points as traders weigh bank earnings and spiking virus cases

US stocks rose on Tuesday as investors weighed second-quarter earnings results for US banks against spiking coronavirus cases.
JPMorgan gained after earnings beat Wall Street expectations. Wells Fargo slumped after reporting a loss and cutting its dividend. 
Coronavirus cases continue to climb in the US, forcing states to rollback reopening plans and threatening the economic recovery from the pandemic recession. 
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US stocks rose on Tuesday as investors wei