With a market capitalization (market cap) of $4.06B — a measure of how much the company is worth — Miami International Holdings, Inc. is the 1575th most valuable company in Financial Services as of August 18, 2026. Shares trade at $41.91, down +1.18% on the day.
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Miami International Holdings, Inc. (MIAX) is a financial services corporation that operates diverse marketplaces through its various subsidiaries, facilitating trading across options, futures, and cash equities. Its extensive options suite encompasses MIAX Options, MIAX Pearl, MIAX Emerald, and MIAX Sapphire. For U.S. equities, it provides MIAX Pearl Equities. The company's offerings extend to U.S. futures and their corresponding options traded on MIAX Futures, a platform that also facilitates transactions in hard red spring wheat products. Furthermore, MIAX supports international listings via BSX and TISE. Beyond market operation, MIAX also delivers essential post-trade services. This includes comprehensive clearing for U.S. futures and options through MIAX Futures Clearing, alongside its ownership of Dorman Trading. Dorman Trading, a full-service futures commission merchant, provides execution and clearing services for a broad client base, including introducing brokers, retail investors, institutional firms, and professional traders. Established in 2007, Miami International Holdings, Inc. maintains its headquarters in Princeton, New Jersey.
Visit websiteAs of August 18, 2026, Miami International Holdings, Inc. (MIAX) is worth $4.06B — this is its market capitalization, the total value of all its outstanding shares.
Miami International Holdings, Inc. ’s market cap is $4.06B, which ranks it #1575 among the most valuable companies in the Financial Services sector tracked on MarketCapLens.
Miami International Holdings, Inc. (MIAX) shares trade at $41.91, down 1.18% on the day, as of August 18, 2026.
Fundamentals are annual. Figures labeled with their fiscal year.
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