US STOCKS SNAPSHOT-Wall St up on earnings; Caterpillar rallies
October 23, 2014 at 16:08 PM EDT
NEW YORK, Oct 23 (Reuters) - Corporate earnings including Caterpillar's drove Wall Street higher on Thursday but stocks pared gains late in the session after reports that a New York City hospital is running Ebola tests on a healthcare worker who treated infected patients in West Africa.