Ari Rubenstein

Ari Rubenstein is a co-founder and the Chief Executive Officer of GTS, an industry leading trading and technology firm.

Mr. Rubenstein began his career in the mid-1990s as a runner on the floor of the commodities exchange in New York City. In this position, he experienced firsthand the modernization of financial markets, and the power of innovation in making markets better for all participants.

In the mid-2000s, he teamed with like-minded business partners to develop the innovative trading technology that laid the groundwork for the founding of GTS in 2006.

In his leadership role at GTS, Mr. Rubenstein heads up day-to-day management of the firm. He develops and deploys new trading businesses, while working alongside GTS’ other partners to oversee operations and strategic initiatives.

Mr. Rubenstein is a vocal supporter of the efficiency and democratization of modern markets and an outspoken advocate for thoughtful, intelligent, and data-driven regulation. He has appeared before the U.S. House Financial Services Committee, testifying on key market structure issues, including the importance of publicly listed companies in driving job creation, capital raising and economic growth. He frequently collaborates with regulators – as a member of the Financial Industry Regulatory Authority’s market surveillance advisory board – and his industry peers on efforts to ensure pragmatic, investor-first oversight of our financial markets.

Mr. Rubenstein has also penned numerous Op-Eds on these topics in prominent publications including The Wall Street Journal, Business Insider and

In 2013, Mr. Rubenstein cofounded the Modern Markets Initiative (MMI), an education and advocacy organization dedicated to advancing secure savings and investment through innovation in the markets.

Mr. Rubenstein is a graduate of the University of Vermont. He lives in Manhattan with his wife and three daughters.