U.S. stocks opened narrowly mixed on Monday as investors were digesting U.S. personal income and spending data.
In June, U.S. personal income increased 68.1 billion U.S. dollars, or 0.4 percent, beating market consensus of 0.3 percent, said the Commerce Department Monday.
Personal consumption expenditures increased 25.9 billion dollars, or 0.2 percent, in June, its smallest gain in four months.
Overseas, Greece's stocks, which reopened Monday after a five-week closure, plummeted as much as 23 percent in early trading.
In Asia, Chinese shares dropped on Monday following last week's decline as investors worried about the wild swing of the market, with the benchmark Shanghai Composite Index tumbling 1.1 percent.
Shortly after the opening bell, the Dow Jones Industrial Average ticked down 7.68 points, or 0.04 percent, to 17,682.18. The S&P 500 edged up 0.46 point, or 0.02 percent, to 2,104.30. The Nasdaq Composite Index added 8.86 points, or 0.17 percent, to 5,137.14.
On Friday, U.S. stocks closed modestly lower after wavering in a narrow range as investors digested corporate earnings reports amid falling oil prices.