Largest drop in two months as Wall St. rally loses steam

Contracts to buy previously-owned U.S. homes fell in November to their lowest level in nearly a year, a sign that rising interest rates could be weighing on the housing market. The S&P 500 posted its largest daily decline since Oct. 11. Technology was the largest weight on major indexes, however, with Nvidia down 6.9 percent to $109.25 after short seller Citron Research said the market was overlooking the headwinds for the stock - which had earlier touched a record high.