Miami International Holdings, Inc.

Miami International Holdings, Inc. (MIAX) priced its initial public offering on Aug 14, 2025 at $23.00 per share, above its $19.00–$21.00 range, raising $345M, and listed on NYSE. At the IPO price its market capitalization was about $1.83B. Reed Smith advised the company and Ropes & Gray advised the underwriters.

Miami International Holdings, Inc. builds and operates regulated financial marketplaces across asset classes and geographies, including the MIAX options and equities exchanges, MIAX Futures and BSX, all running on proprietary in-house technology.

Status

IPO

Ticker

MIAX

Exchange

NYSE

Priced

Aug 14, 2025

IPO price

$23.00

Price range

$19.00–$21.00

Raised

$345M

Market cap at IPO price

$1.83B

First filed

Jul 18, 2025

Company counsel

Reed Smith

Underwriters' counsel

Ropes & Gray

Sector

Financials

Country / state

NJ

Market cap at IPO price = shares outstanding after the offering (all classes, before the over-allotment option) × the IPO price, from the final prospectus.