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NEW YORK, NY - DECEMBER 04:  Traders work on the floor of the New York Stock Exchange (NYSE) at the end of the trading day on December 4, 2017 in New York City. Banks and retailers surged on the market today, helping to lift the Dow Jones Industrial average to rise over 50 points.  (Photo by Spencer Platt/Getty Images)
NEW YORK, NY - DECEMBER 04:  Traders work on the floor of the New York Stock Exchange (NYSE) at the end of the trading day on December 4, 2017 in New York City. Banks and retailers surged on the market today, helping to lift the Dow Jones Industrial average to rise over 50 points.  (Photo by Spencer Platt/Getty Images)

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Here's how the Dow topped 25,000

The Dow just soared through yet another milestone, crossing 25,000 for the first time. CNN's Christine Romans explains what's driving gains.

Here's how the Dow topped 25,000

The Dow just soared through yet another milestone, crossing 25,000 for the first time. CNN's Christine Romans explains what's driving gains.