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Steven Bonanno

Chief Information Officer

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Steven Bonanno

As Chief Information Officer, Steve drives the implementation of IEX’s technology strategy. He is focused on the resilience and scalability of IEX's platforms as the company expands into new markets and supports the company’s ongoing growth and innovation in exchange technology.

Steve brings more than 30 years of experience in equities and derivatives trading technology, with a track record of modernizing infrastructure, leading M&A integrations, and scaling complex trading systems. Prior to joining IEX, he served as CEO of Best Execution Solutions (BXS), where he led the firm’s strategic direction and operations. He also served as CIO at DASH Financial Technologies, where he played a key role in the company’s acquisition by ION Group and led key modernization efforts across trading infrastructure.

Earlier in his career, Steve held senior leadership roles at Bloomberg Tradebook, where he transitioned the agency brokerage to a fintech model, and at Direct Edge, where he served as CTO during the launch of the EDGA and EDGX exchanges and the merger with ISE Stock Exchange. He has also held senior technology positions at NASDAQ, BRUT ECN, MarketXT, and Instinet. Steve was named one of the Top 10 CIOs on Wall Street by Securities Technology Monitor.