Wall Street was mixed with low volumes of trading Friday with major U.S. markets struggling to end in positive territory for the week. Futures for the S&P 500 were virtually unchanged before the bell,

President Trump has announced that he would implement tariffs of 25 percent on all steel and aluminum imports to the U.S.

Dow Jones Industrial Average futures were trading near the flatline, as were S&P 500 futures and Nasdaq-100 futures. During Thursday's regular session, the Dow shed 450.94 points, or 1.01%. The S&P 500 lost 0.