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Miami International Holdings Completes Sale of MIAXdx to Joint Venture Established by Robinhood Markets in Partnership with Susquehanna International Group [Yahoo! Finance]

Miami International Holdings, Inc.  (MIAX) 
PDF PRINCETON, N.J. and MIAMI Jan. 21, 2026 /PRNewswire/ -- Miami International Holdings, Inc. (MIAX ® ) (NYSE: MIAX), a technology-driven leader in building and operating [Read more]