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Miami International Holdings

Fintech · Princeton, United States · Founded 2007 · IPO 2025

Also offers a trading platform MoreLess

Miami International Securities Exchange, LLC (MIAX) operates a fully electronic options exchange, specializing in the trading of standardized options on equities and ETFs. MIAX serves a diverse range of clients including institutional investors, market makers, and proprietary trading firms. Operating within the highly competitive financial markets, MIAX differentiates itself through its unparalleled system throughput, capable of handling over 38 million quotes per second, and ultra-low latency, with an average round-trip quote latency of 15.89 microseconds. The business model revolves around providing a robust and efficient trading platform, generating revenue through transaction fees, membership fees, and market data sales. MIAX's market protections offer members industry-leading processes to minimize risk exposure, enhancing the trading experience. The company continues to innovate and expand its offerings, maintaining a strong focus on leveraging its management's expertise in the equity options space.

Keywords: electronic options exchange, ultra-low latency, high throughput, risk management, equities, ETFs, institutional investors, market makers, proprietary trading, transaction fees.

Valuation $4.01B
Revenue $1.36B
EBITDA $145M
Total funding $50–100M

Company overview

Miami International Holdings company information

The essential company record, classifications and operating signals in one place.

Status
Operational
Founded
2007
Headquarters
Princeton, United States
Employees
87
Open positions
None listed
Dealroom signal
76.8
Investment activity
15 companies · latest Dec 2025
Capital deployed
$167M
Preferred round
SEED
client focusb2bindustryFintechsectorVerified Unicorns and $1B ExitssectorVerified ThoroughbredssectorQuasi tech

Valuation & funding

Miami International Holdings funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
POST IPO EQUITYOther financing Mar 2026 $1.8M Tudor Investments
POST IPO EQUITYOther financing Dec 2025 $2.8M Undisclosed
SECONDARYOther financing Dec 2025 $0 Undisclosed
IPOExit Aug 2025 $397M $1.5M Undisclosed
GROWTH EQUITY NON VCOther financing Jun 2025 $40M Warburg Pincus
GROWTH EQUITY NON VCOther financing Aug 2024 Warburg Pincus
LATE VCEquity / VC Dec 2020 Undisclosed
SERIES BEquity / VC Aug 2018 Capitoria
EARLY VCEquity / VC Feb 2018 Undisclosed
Showing 9 recorded eventsUnlock the complete deal history →

Financials

Revenue, earnings and profit over time

Reported history and available estimates. Estimated years are marked “E”; sparse fields are left blank rather than inferred.

YearRevenueGrowthEBITDAMarginProfitMargin
2026 $1.4B 0% $145M 10.6% −$70M -5.1%
2025 $1.4B +19.6% $145M 10.6% −$70M -5.1%
2024 $1.1B +9.5% $25M 2.2% $102M 9%
2023 $1B +30.5% $28M 2.7%
2022 $798M +6.2% $28M 3.5%
2021 $752M $49M 6.5%
2020
Company filings, research estimates and Dealroom dataOpen the full financial model →

Growth signals

Miami International Holdings website traffic

Latest recorded traffic for Miami International Holdings is 23K monthly website visits, down 14.8% over the last three months. Miami International Holdings's team grew 6.1% over the past year.

Latest monthly visits23K 3-month web change-14.8% 1-year team growth+6.1%
Monthly website visits45 observations · Jun 2020–Jul 2026
Hover or focus a point to see its exact monthly valueCompare with peers →

Comparisons

Miami International Holdings compared with similar companies

Dealroom’s weighted taxonomy model identifies the closest operating peers. Company identity and context stay open; selected comparison metrics preview what is available in the platform.

Showing 8 of the closest matchesCompare every metric →

Capital deployed

Miami International Holdings investments and acquisitions

Recent portfolio relationships for companies that also act as investors or acquirers.

Talent graph

Miami International Holdings's talent

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Team profiled 7 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 3 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Investors

4 investors on Miami International Holdings's cap table

Sourced from Dealroom's funding and investor records. Investor profile links are shown where available.

Series A 1 investor entered at this stage
Capitoria
Series B+ 2 investors entered at this stage
Warburg Pincus
Tudor Investments
Other known 1 additional known investor
Optiver

Global footprint

Where Miami International Holdings has talent and traffic

Workforce by country
3 countries with
team presence
🇺🇸 United States96.8%
🇰🇼 Kuwait1.6%
🇬🇧 United Kingdom1.6%
3 countries shown

In the news

Latest news about Miami International Holdings

Recent press, funding announcements, and product moves mentioning Miami International Holdings — open to read from the original sources.

See all news

Market sentiment

What the market is saying about Miami International Holdings

An AI-synthesized read of the highest-engagement posts about Miami International Holdings on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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