U.S. stocks open mixed ahead of Greece meeting

U.S. stocks opened mixed on Friday, as investors were cautious ahead of a Eurogroup meeting about extending Greece's bailout program.

The Eurogroup meeting on Greece will reconvene in Brussels on Saturday, which would be the fifth in 10 days, according to an official statement issued Friday.

"On a number of issues there is still a wide gap with the Greek authorities. In the meantime, the door is still open for the Greek authorities to accept the proposals tabled by the institutions," Eurogroup President Jeroen Dijsselbloem said after Thursday's meeting.

The euro zone's Greece talks did not reach agreement on Thursday. Hopes of a breakthrough dimmed again when the ministers' meeting ended abruptly again.

Time is running out for Greece and creditors to reach a deal before Greece has to repay a 1.6-billion-euro loan to the International Monetary Fund by the end of this month.

In the United States, the only economic data due is the monthly Thomson Reuters/University of Michigan survey of the consumer sentiment later in the morning session on Friday.

Shortly after the opening bell, the Dow Jones Industrial Average increased 38.91 points, or 0.22 percent, to 17,929.27. The S&P 500 lost 1.38 points, or 0.07 percent, to 2,100.93. The Nasdaq Composite Index was down 15.33 points, or 0.30 percent, to 5,096.86.

U.S. stocks shaved early gains to close mildly lower on Thursday, as investors weighed positive economic data against the uncertainty of the Greek debt crisis. Endi