NEW YORK, Oct 21 (Reuters) - Wall Street edged higher in a volatile session on Thursday, torn between strong corporate earnings and a surge in the U.S. dollar.
The Dow Jones industrial average gained 38.60 points, or 0.35 percent, to 11,146.57. The Standard & Poor's 500 Index rose 2.09 points, or 0.18 percent, to 1,180.26. The Nasdaq Composite Index added 2.28 points, or 0.09 percent, to 2,459.67.
(Editing by Kenneth Barry)