Ari Rubenstein

Ari Rubenstein is Co-Founder and CEO of GTS, a leading multi-asset electronic market-making firm.  Rubenstein began his career in the mid-1990s as a runner on the floor of the New York City commodities exchange. In this position, he experienced the modernization of the financial markets firsthand. He went on to co-found GTS in 2006. Under his leadership, GTS has evolved from a start-up proprietary trading shop into a leading global quantitative trading firm and liquidity provider, bringing consistency, efficiency, and transparency to today’s financial markets.

Rubenstein heads the firm’s day-to-day management and works alongside GTS partners to oversee operations and strategic initiatives. He is also the founder of ClearList, an equities marketplace for private companies. He develops and deploys new trading businesses, partnering with other leading industry participants in his mission to support the efficiency and democratization of modern markets.

To that end, Rubenstein is an outspoken advocate for data-driven, incremental reforms to enhance market efficiency and has actively analyzed geopolitical risks, including the implications of potential Chinese aggression toward Taiwan on U.S. financial markets. He has appeared before the U.S. House Financial Services Committee and the Securities and Exchange Commission, testifying on key market structure issues, including the importance of publicly listed companies in driving job creation, capital raising, and economic growth. As a member of FINRA’s Market Surveillance Advisory Group, he frequently collaborates with regulators and industry peers to ensure pragmatic, investor-first oversight of our financial markets.

Rubenstein has penned numerous op-eds on topics related to financial markets in prominent publications, including The Wall Street Journal, Barron’s, Fox Business, The Financial Times, and CNBC.com. He has also appeared on Bloomberg TV and CNBC.