(CNBC) — U.S. stocks closed higher in light volume trade Tuesday as second-quarter earnings season began and investors eyed developments in Greece and a slight recovery in oil prices.
"I think most of all it's a continuation from yesterday," said Robert Pavlik, chief market strategist at Boston Private Wealth. "I think people are trying to get positioned ahead of earnings."
Fed Chair Janet Yellen's testimony to Congress on Wednesday and Thursday will be watched, but "in the long run I don't think there's anything that comes of it," Pavlik said.
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