U.S. stock index futures indicated a flat to positive open for Wall Street on Friday, with focus on events abroad following a slide in Chinese stocks and deadlock in talks to avert a debt default in Greece.
European stocks traded broadly lower after talks on Thursday on a cash-for-reforms deal between Greece and its international creditors failed to reach a successful conclusion, with further talks set to take place on Saturday.
Greece is at risk of defaulting on a 1.6 billion euro ($1.8 billion)-debt repayment to the International Monetary Fund on June 30, with Greece's bailout program also set to expire at the end of the month.
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"I expect to see significant risk aversion... with investors preparing for fireworks over the weekend," said Craig Erlam, senior market analyst at OANDA, in a note.