Miami International Holdings: Funding, Investors & Team (Sep 2026)
MIAX is an operator of a fully-electronic exchange intended for the trading of equity options. The company's focus lies in offering an electronic platform for the trading of OCC issued standardized options on equities and ETFs in the United States.
Miami International Holdings has raised $358M across 2 funding rounds on record, the most recent an undisclosed round of $318M announced in Dec 2025.
That round is above the $14M median round size for Financial Services companies tracked on FundedIQ over the last two years.
Miami International Holdings Company Profile and Key Stats
Latest funding round on record: Dec 2025.
Miami International Holdings Funding Rounds
Miami International Holdings raised $40.0M in an undisclosed round announced in Jun 2025.
6 months later, an undisclosed round of $318M was announced in Dec 2025.
Miami International Holdings Founders and Leadership Team
Contact details for the Miami International Holdings team: 1 of 2 have an email address on file.
Start 14-day free trial →Miami International Holdings Funding Compared to Other Financial Services Startups
Miami International Holdings' latest round of $318M is above the median round in Financial Services. Medians cover the last 24 months of disclosed rounds.
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Miami International Holdings Funding FAQs
What does Miami International Holdings do?
MIAX is an operator of a fully-electronic exchange intended for the trading of equity options. The company's focus lies in offering an electronic platform for the trading of OCC issued standardized options on equities and ETFs in the United States.
How much funding has Miami International Holdings raised?
Miami International Holdings has raised $358M across 2 rounds on record. The most recent is an undisclosed round of $318M announced in Dec 2025.
When did Miami International Holdings last raise funding?
Miami International Holdings' most recent funding round on record is an undisclosed round of $318M, announced in Dec 2025.
Who founded Miami International Holdings?
FundedIQ lists Francis Ford (Founder), Thomas Gallagher (Founder) at Miami International Holdings.
Where is Miami International Holdings headquartered?
Miami International Holdings is based in Princeton, New Jersey, United States.
How many employees does Miami International Holdings have?
Miami International Holdings is in the 101-250 employee band.
How does Miami International Holdings' funding compare to other Financial Services startups?
Miami International Holdings' latest round of $318M is above the $14M median round size for Financial Services companies on FundedIQ across 5,745 tracked companies over the last two years.
About FundedIQ's Miami International Holdings Funding Data
FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.
Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for Miami International Holdings is left off this page rather than filled in.
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