FTX US Invests in ‘Flash Boys’ Exchange in Crypto-Trading Push

Crypto exchange FTX US agreed to take a stake in IEX Group Inc., owner of the stock exchange made famous by “Flash Boys,” as they team up on technology and regulatory efforts to expand access to digital assets for retail and institutional investors.

The companies plan to collaborate on building a market structure for trading crypto securities and work closely with regulators, according to a statement Tuesday. FTX US declined to disclose terms, saying it will be a “significant investor” in IEX. The deal is set to close next month, subject to regulatory approval and other conditions.

“With this ...