NEW YORK (AP) — U.S. stock indexes are ticking higher on Thursday following an encouraging signal for the artificial-intelligence boom.

The S&P 500 rose 0.3%, though trading has been erratic this week, and stocks have repeatedly swung between gains and losses . The Dow Jones Industrial Average was up 116 points, or 0.3%, as of 9:35 a.m. Eastern time, and the Nasdaq composite was 0.5% higher.

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