Cunningham made history in 2018 as the first female president of the New York Stock Exchange in its 226-year history. Prior to leading the world's largest stock exchange, she served as COO, overseeing NYSE's equities, equities derivatives and exchange-traded products. Since her appointment, Cunningham has played a critical role in updating the NYSE's trading operations. She led the rollout of Pillar, a major technology overhaul connecting all of the exchange's markets. As more businesses opt to stay private longer, Cunningham is working to make it easier for companies to access the public markets.