The major U.S. index futures are currently pointing to a modestly higher open on Thursday, with stocks poised to add to the gains posted in yesterday's session.Some traders may continue to look to pick up stocks at relatively reduced levels even after Wednesday's advance, as the major averages remain well off last week's record highs.While concerns about an artificial intelligence bubble and the possibility of a near-term correction continue to weigh on investors' minds, the momentum for the currently stil ...