NEW YORK —Stocks had a mixed day Friday, as investors waited for negotiators to finish their work on a solution to Greece’s debt problems. Chinese stocks plunged 7 percent as fears spread that a yearlong bull rally there has become overheated. China’s benchmark index is still up more than double over the past year.
The Dow Jones industrial average added 56.66 points, or 0.3 percent, to 17,947.02. It was lifted largely by Nike, which rose more than 4 percent after posting strong quarterly results.
The Standard & Poor’s 500 index fell 0.70 of a point, or 0.03 percent, to 2,101.49, and the Nasdaq composite lost 31.68 points, or 0.6 percent, to 5,080.51. All three indexes ended the week slightly lower.
As they have done all week, global investors are watching closely as Greek debt talks go down to the wire. On Thursday, a key meeting of eurozone finance ministers broke up without an agreement. The 19 ministers are due to meet again Saturday.
Greece needs a deal to make a debt payment of $1.8 billion to the International Monetary Fund on Tuesday. Failing to do so would put the country on a path toward default and a possible exit from the euro.
“While these deadlines can quite often be taken with a pinch of salt, Greece has literally run out of time on this occasion,” said Craig Erlam, senior market analyst at OANDA.
Investors now turn to next week, when the U.S. government will release the June jobs report.
“There’s a premium on economic data right now. Outside of Greece, everyone will be focused on how the U.S. economy is holding up,” said Quincy Krosby, a market strategist at Prudential Financial.



