Miami International Completes Sale Of 90% Of Issued And Outstanding Equity In MIAXdx To JV Established By Robinhood Markets In Partnership With Susquehanna International Group

Miami International Holdings Retains 10% Stake in the Exchange and Clearinghouse

PRINCETON, N.J. and MIAMI, Jan. 21, 2026 /PRNewswire/ -- Miami International Holdings, Inc. (MIAX®) (NYSE:MIAX), a technology-driven leader in building and operating regulated financial markets across multiple asset classes, today announced it has completed the sale of 90% of the issued and outstanding equity in MIAX Derivatives Exchange (MIAXdx™), a wholly owned subsidiary of MIAX, to a joint venture established by Robinhood Markets, Inc. (Robinhood) (NASDAQ:HOOD) in partnership with Susquehanna International Group. MIAX has retained 10% of the issued and outstanding equity of MIAXdx.

MIAXdx is a Designated Contract Market (DCM) and Derivatives Clearing Organization (DCO) with regulatory approval from the Commodity Futures Trading Commission (CFTC) to list and clear fully collateralized futures, options on futures, and swaps.