The shutdown at 1115 GMT came a few minutes
after the bourse announced it was switching to so-called
pre-market mode due to a "critical alert on its cash market"
related to an unspecified technical problem.
While traders were able to place, modify and cancel orders,
prices were not set.
Trading subsequently resumed at 1210 GMT for stocks and bonds
and at 1315 GMT for certificates and ETFs.
NYSE Euronext declined to comment on the incident.
In 2011, NYSE Euronext had a series of technical incidents
including one in which the operator suspended Euronext indices
for more than an hour and a half due to a problem with one of
(Reporting by Nicholas Vinocur;
editing by Jane Merriman)
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