Deutsche Bank AG's attempts to reassure investors about its ability to pay its debts have shone a spotlight on a type of security that didn't exist as recently as three years ago.
Alan Diaz, AP Same-store sales fell around 7 percent at Sears and K-mart during the holidays, leading the company to accelerate store closings.
U.S. stocks slipped Tuesday as a rout in energy shares deepened and investors continued to sell other beaten-down sectors. The Dow industrials dropped 88 points, or 0.6%, to 15936 in afternoon trading.
The imposition of negative interest rates by central banks in Japan and across much of Europe has American investors spooked that the U.S.
Wall Street bounced between gains and losses in choppy trading on Tuesday, as a decline in energy and financial sectors offset gains in materials and technology stocks.