NEW YORK, Oct 19 (Reuters) - U.S. stocks posted their biggest loss in two months on Tuesday on fears banks might be on the hook for billions of dollars in souring mortgage bonds.
The Dow Jones industrial average was down 165.14 points, or 1.48 percent, at 10,978.55, according to the latest available figures. The Standard & Poor's 500 Index was down 18.82 points, or 1.59 percent, at 1,165.89. The Nasdaq Composite Index was down 43.71 points, or 1.76 percent, at 2,436.95. (Reporting by Angela Moon, Editing by Kenneth Barry)