The Dow Jones Industrial Average rose 39.03 points, or 0.19 percent, to 20,689.24, the S&P 500 gained 1.32 points, or 0.06 percent, to 2,360.16 and the Nasdaq Composite added 3.93 points, or 0.07 percent, to 5,898.61.
The S&P industrial sector ended up 0.2 percent while the materials sector closed up 0.4 percent.
Financial investors appeared sceptical, however, as the S&P bank subsector ended down 0.3 percent.
About 6.2 billion shares changed hands on U.S. exchanges, compared with the 6.8 billion daily average for the past 20 trading days, according to Thomson Reuters data.
The S&P 500 posted 12 new 52-week highs and seven new lows; the Nasdaq Composite recorded 38 new highs and 48 new lows.
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