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NEW YORK, NY - NOVEMBER 07: A trader on the floor of the New York Stock Exchange (NYSE) works as Twitter's initial price offering (IPO) is finalized on November 7, 2013 in New York City. Twitter went public November 7, on the NYSE selling at a market price of $45.10, with the initial price being set at $26 on November 6. (Photo by Andrew Burton/Getty Images)
NEW YORK, NY - NOVEMBER 07: A trader on the floor of the New York Stock Exchange (NYSE) works as Twitter's initial price offering (IPO) is finalized on November 7, 2013 in New York City. Twitter went public November 7, on the NYSE selling at a market price of $45.10, with the initial price being set at $26 on November 6. (Photo by Andrew Burton/Getty Images)

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High stakes for high-profile Twitter IPO

CNN's Alison Kosik talks to the CEO of NYSE Euronext, Duncan Niederauer, about the challenges of a high-profile IPO.

High stakes for high-profile Twitter IPO

CNN's Alison Kosik talks to the CEO of NYSE Euronext, Duncan Niederauer, about the challenges of a high-profile IPO.