IBM, United Tech drag Dow; Apple results weigh on futures

The Dow fell 1 percent, with IBM and United Tech contributing around 118 points to the 181-point drop. The decline marked the biggest percentage decline in about two weeks for the blue-chip index. Fellow Dow component United Technologies tumbled 7 percent to $102.71 and was the worst performer on the Dow after cutting its full-year profit outlook for the third time this year.