U.S. stock-index futures retreated amid mounting concern Greece will exit the euro area, with the nation imposing capital controls and shutting banks before the government puts creditors' demands to a vote.
Global markets:
Nikkei 20,109.95 -596.20 -2.88%
Hang Seng 25,966.98 -696.89 -2.61%
Shanghai Composite 4,054.86 -138.02 -3.29%
FTSE 6,658.98 -94.72 -1.40%
CAC 4,907.25 -151.92 -3.00%
DAX 11,190.53 -301.90 -2.63%
Crude oil $58.89 (-1.24%)
Gold $1182.40 (+0.78%)