U.S. stock index futures pointed to a flat open on Thursday as traders eyed events in Europe, where the European Central Bank is holding a monetary policy meeting.
The ECB is expected to extend its bond buying program on Thursday, with ECB President Mario Draghi due to hold a news conference once the meeting wraps up.
In Europe, the pan-European Stoxx-600 index was around 0.1 percent higher on Thursday morning.
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