Ari Rubenstein

Ari Rubenstein is a co-founder and the Chief Executive Officer of GTS.

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 transformation and modernization of financial markets, later teaming with his business partners in the mid-2000s 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.

He 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 penned numerous Op-Eds on these topics in prominent publications including The Wall Street Journal and and was a co-founding member of the Modern Markets Initiative (MMI), the industry organization dedicated to education and advocacy on the benefits of high frequency trading.

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