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Miami International Holdings (MIAX) logo

Miami International Holdings (MIAX)

$35Mdisclosed portfolio round capital
1 Dec, 2025last investment
3portfolio companies
9team members

Analyst signals

Portfolio activity and matriculation

Metrics use all recorded activity through 21 Jul 2026 across series a, strategic. Later-round outcomes are capped at the period end.

33.3%companies with a later round · 1/3
Not availablemedian round-size step-up · n=0
Not availablemedian valuation step-up · n=0
0%recorded-solo rate · 0 solo / 3 syndicated
Finance · 2 companies

These are activity signals, not fund-return metrics. Round capital is the full disclosed financing amount, not this fund's check size. “Recorded solo” means only one investor is present in the source data and is a lead signal, not verified lead status; syndicated rounds are a co-investor or follower signal. IRR, TVPI, DPI, ownership, exits, and market beta cannot be calculated from the available records.

People

Team

B

Barbara Comly

Executive Vice President, General Counsel and Corporate Secretary

C

Cees Vermaas

Chief Executive Officer of The International Stock Exchange Group Limited

D

Douglas M. Schafer Jr.

Executive Vice President, Chief Information Officer, President, Miami International Technologies, LLC

E

Edward Deitzel

Executive Vice President, Chief Regulatory Officer and Chief Compliance Officer

H

Harish Jayabalan

Executive Vice President, Chief Information Security Officer and Chief Risk Officer

J

John Smollen

Executive Vice President, New Product Development

L

Lance Emmons

Executive Vice President, Chief Financial Officer

S

Shelly Brown

Executive Vice President, Chief Strategy Officer

T

Thomas P. Gallagher

Chairman and Chief Executive Officer

Portfolio

Investments

Full financing histories for portfolio companies. Highlighted rounds are those where Miami International Holdings (MIAX) is recorded as an investor.

Architect logo

Architect

hybrid
Finance

Architect is a financial exchange platform that lets participants trade listed futures and options on AI compute (GPU rental prices), as well as related metals, energy, and power markets. It serves neoclouds, hyperscalers, model labs, compute buyers and sellers, lenders financing datacenter build-outs, and speculators/arbitrageurs seeking exposure to the AI compute economy.

Series A1 Dec, 2025$35M roundSyndicated · 10 disclosed investors
Unknown1 Feb, 2024$12M round
Seed1 Jan, 2023$5M round
Finance

EDX Markets operates an institutional digital asset exchange combining traditional financial market practices with non-custodial cryptocurrency trading infrastructure.

Series C1 Jul, 2026$76M round
Series B1 Jan, 2024
Strategic1 Jun, 2023Syndicated · 5 disclosed investors