Lynn Martin grew up loving math. She went on to be one of two women in her college cohort to major in computer science. Today, she's the 68th President of the New York Stock Exchange, and only the second woman to hold that role.

On today's Leadership Next, she tells Alan Murray and Ellen McGirt about the path that led her to this job and the mentors who helped her get there.

But first, she digs into the growing interest around ESG investing, the impact of technology on financial markets and explains why being a CEO is more challenging than ever before.