Ronan Ryan

As one of the founding members of IEX, network and infrastructure expert Ronan Ryan is part of the team working to restore trust to the stock market, as chronicled in Michael Lewis’ latest best-seller, Flash Boys: A Wall Street Revolt. One of the most provocative books ever to hit the financial market, the story reveals how computerized high-frequency trading (HFT) has allowed certain Wall Street players to work the stock market to their advantage. Brad Katsuyama (former Head of Electronic Trading at RBC and President of IEX) was one of the first to notice how the HFTs were costing his clients millions of dollars. To better understand the technology at the root of such losses (known as “flash crashes”), Brad consulted Ryan, whose network and cable infrastructure expertise had helped some of the world’s fastest traders become faster.
Ryan was one of few stock market insiders with intimate knowledge of the inner-workings of HFT. “I learned more from talking to him in an hour than I learned from six months of reading about [high-frequency trading],” Katsuyama says. “The second I met him, I wanted to hire him.” As Chief Strategy Officer, Ryan, along with Brad and a handful of colleagues, devised a plan to identify and correct the effects of HFT tactics with the creation of IEX, an upstart stock trading venue designed to institutionalize fairness in the market through the use of technology.
Ronan Ryan has over 9 years of experience in the financial services industry and over 17 years of experience in networking infrastructure. Ronan previously was the Head of Electronic Trading Strategy at RBC Capital Markets, where he used his prior experience in network, hardware, and co-location technology to generate client-facing solutions.
Prior to working at RBC, Ronan was the Head of Financial Services Development at Switch and Data and Head of DMA and Co-location solutions at BT Radianz, where he serviced some of the largest trading firms in the financial industry. Ryan also has extensive experience in the telecommunications space, having served as Global Account Consultant for Qwest Communications and National Account Consultant for MCI Corporation prior to that.
Ryan has been featured on the cover of New York Times Magazine and was featured in a 60 Minutes profile following the release of Flash Boys, along with Michael Lewis and Brad Katsuyama. He has been featured in various other media including The Wall Street Journal, Bloomberg, CNBC, and Institutional Investor.
Ryan graduated from Fairfield University with a Bachelor’s degree in International Studies. He lives in New Jersey with his wife Kara.