U.S. stocks are edging higher in quiet trading at the beginning of a holiday-shortened week.
Several European markets fell as Greece headed for elections that could endanger its bailout program.
The Dow Jones industrial average rose 11 points, less than 0.1 percent, to 18,063 as of 11:50 a.m. Eastern time Monday.
The Standard & Poor's 500 index rose four points, or 0.2 percent, to 2,093. The Nasdaq composite rose six points, or 0.1 percent, to 4,813.
Energy stocks were among the leaders. Chevron was one of the biggest gainers in the Dow, rising 0.7 percent.
Bond prices rose. The yield on the 10-year Treasury note fell to 2.20 percent.