U.S. stock futures trim robust gains after data

U.S. stock futures retained the bulk of Tuesday gains after the government reported U.S. productivity fell 0.3% in the second quarter.

Futures for the Dow Jones Industrial Average rose 152 points to 10,878. Those for the Standard & Poor's 500 Index added 20.7 points to 1,132. Futures for the Nasdaq 100 added 36.25 points to 2,074.25. (Market Watch)