A year after becoming a full-fledged exchange platform, IEX still finds itself a maverick stock-trading venue attempting to disrupt an entrenched Wall Street system even as it has intensified the debate surrounding the nature of competition and stock pricing, MarketWatch reports.

Run by CEO Brad Katsuyama, IEX garnered attention on the back of Michael Lewis’s 2014 book Flash Boys, which cast the firm as a virtuous player in an environment fraught with conflicts of interest and high-frequency traders, equipped with lightning-fast computers, seeking to ring up profits at the expense of average investors.