(CNBC) U.S. stocks traded lower on Thursday, with information technology led decliners, as concerns over the presidential election lingered.

Investors “look at Donald Trump as the great unknown,” said Robert Pavlik, chief market strategist at Boston Private Wealth. “Hillary Clinton, while not business friendly, is certainly market friendly.”

“This is all about the election and the breaking of technical support,” he said. “People are now thinking the 200-day moving average is in play” on the S&P 500, around 2,082.

The Dow Jones industrial average fell about 50 points, with Apple contributing the most losses. The S&P 500 fell 0.6 percent, with information technology dropping more than 1 percent. The Nasdaq composite underperformed, falling about 1 percent. Earlier, the three major indexes traded higher.

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