US stocks have ended trading on Monday mostly flat after expectations that a tax-cut package will pass the Senate kept them higher for much of the day.
The tax-cut compromise brokered by the White House and Republicans is scheduled for its first Senate vote later.
The S&P 500 index eked out a new 2010 high for the fourth time in four days. The index rose 0.06 point to 1240.46.
Other indexes took a late afternoon spill. According to preliminary calculations, the Dow Jones industrial average rose 18, or 0.16%, to 11,428, having been up as many as 70 points earlier.
The Nasdaq composite fell 12, or 0.5%, to 2,625.
Falling shares and rising ones were almost evenly matched on the New York Stock Exchange. Volume was 961 million shares.