When Bob Greifeld became Nasdaq's CEO in 2003, he was presented with outdated tools and a company that was bleeding cash and rapidly losing market share. Thirteen years later, Nasdaq has the largest market share for options and equities of any exchange in the US. Through acquisitions and partnerships, Greifeld has shaped Nasdaq into what he primarily views as a cutting-edge technology company. During a recent interview with Business Insider, Greifeld discussed his vision for the future of Nasdaq and how it fits into the exchange industry. What follows is that portion of our interview, edited for length and clarity.

When Bob Greifeld became Nasdaq's CEO in 2003, he was presented with outdated tools and a company that was bleeding cash and rapidly losing market share. Thirteen years later, Nasdaq has the largest market share for options and equities of any exchange in the US. Through acquisitions and partnerships, Greifeld has shaped Nasdaq into what he primarily views as a cutting-edge technology company. During a recent interview with Business Insider, Greifeld discussed his vision for the future of Nasdaq and how it fits into the exchange industry. What follows is that portion of our interview, edited for length and clarity.

Bob Greifeld works in an industry where fractions of a second matter. Still, that hasn't stopped the longtime CEO of Nasdaq from taking a workman-like approach to his job. Dan DeFrancesco talks to Greifeld about his journey to Nasdaq, and what he's learned along the way. Bob Greifeld fits the traditional profile of a capital markets CEO. He's well spoken, intelligent and quick-witted.