(CNBC) U.S. equities closed mostly lower on Friday after the Federal Bureau of Investigation announced it is investigating new emails related to Democratic nominee Hillary Clinton.
The Dow Jones industrial average ended about 10 points lower after trading 74.71 points lower following the announcement. The index was trading about 75 points higher before the new probe was announced.
"I sit next to one of the traders here and he was telling me he'd never seen the Dow fall so quickly," said Art Hogan, chief market strategist at Wunderlich Securities. "There's a lot more to this, but we won't know how much until we get more information."
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"Regardless of the fundamental news we get next week, earnings or data, this may be the story for the next 10 days," he said.