IGNOBLE MARK: The Dow Jones industrial average and the Standard & Poor's 500 closed down for the fifth day in a row, their longest and deepest losing streak this year.

EUROPE RUMBLES: Concerns about the financial health of Spain and Italy rose, as borrowing costs for both countries climbed.

BEST BUY'S POOR SHOWING: Best Buy plunged 6 percent after its CEO stepped down without a successor. The company has been struggling for market share in a retailing landscape that is being reshaped by online sellers like Amazon.