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Miami International Holdings, Inc. (MIAX) is a financial services company in the trading platform operators industry, based in Princeton, United States, with about 439 full-time employees.
It reported revenue of $1.36 billion for fiscal year 2025, up 19.6% from fiscal year 2024, and net income of -$70.03 million. In Q2 2026 (the quarter ended June 30, 2026) revenue was $387.63 million, up 18.3% from a year before. Its largest business segment, Transaction And Clearing Fees, brought in 87% of segment revenue in fiscal year 2025. Its market capitalization was $3.05 billion as of October 9, 2026.
Figures from company filings and market data; latest fiscal year ended December 31, 2025; market data as of October 9, 2026.
, through its subsidiaries, builds and operates various financial marketplaces in the United States. It operates through Options, Equities, and International segments. S. S. futures and options on futures through MIAX Futures; and international listings through BSX and TISE. S.
Miami International reported $1.36 billion in revenue for fiscal year 2025, up 19.6% from $1.14 billion in fiscal year 2024. In Q2 2026 revenue was $387.63 million.
Transaction And Clearing Fees, with $1.19 billion or 87% of segment revenue in fiscal year 2025. Next: Access Fees (8%) and Market Data Fees (3%).
$3.05 billion as of October 9, 2026.
Listed companies of a similar size in the same industry (trading platform operators) include Cboe Global Markets, Inc. (CBOE), Tradeweb Markets Inc. (TW), MarketAxess Holdings Inc. (MKTX), OTC Markets Group Inc. (OTCM).