Key Takeaways
- Sector: Financial Services & Fintech.
- Geography: United States.
Analysis
New York, Miami & Global — Miami International Holdings, the parent of the MIAX exchange group and backed by private equity firm Warburg Pincus, has filed for an initial public offering on the New York Stock Exchange, targeting a valuation of up to $1.67 billion.
The IPO aims to raise as much as $315 million through the sale of 15 million shares priced between $19 and $21 each. Shares will trade under the ticker “MIAX”. The company has appointed J.P. Morgan, Morgan Stanley, and Piper Sandler as joint lead bookrunners for the transaction.
This marks a rare public offering in the U.S. exchange sector. Fewer than half of American exchange operators are publicly listed, with Cboe Global Markets being the last to debut in 2010 via a $339 million IPO.
Founded in 2007, Miami International Holdings operates nine exchanges across equities, options, and futures, including the Bermuda Stock Exchange and the recently acquired International Stock Exchange in Europe. Its flagship platform, MIAX Options, is now the fourth-largest U.S. options exchange by market share, according to the Options Clearing Corporation.
The company posted strong growth in the first half of 2025, reporting a 21.4% year-over-year revenue increase to $654.9 million, while adjusted earnings jumped nearly fourfold to $67.8 million.
Warburg Pincus first invested in the firm in 2023 with a $100 million commitment, followed by another $40 million injection in mid-2025. Wellington Management has indicated interest in purchasing up to $40 million worth of IPO shares.
The listing reflects renewed institutional interest in capital markets infrastructure and technology platforms, particularly those with recurring revenue models, cross-border scalability, and strong unit economics.
Similar public listings in recent years include:
- MarketAxess and Tradeweb, both of which expanded significantly after going public, capitalizing on digitization in fixed income markets.
- ICE’s strategic acquisitions and NYSE positioning as a vertically integrated global exchange operator.
- Ongoing interest in listings from fintech-backed clearinghouses and ESG-focused financial data providers across Europe and Asia.
Miami International’s IPO places it among a select group of global exchange operators seeking to scale through public capital, product expansion, and global M&A.