Finance

MIAX Options Trading Floor Kicks Off in Miami Amid Market Boom

MIAX signage during the company's IPO on the floor of the New York Stock Exchange. — MIAX signage during the company's IPO on the floor of the New York Stock Exchange.
Photographer: Michael Nagle/Bloomberg

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By Katherine Doherty, Bernard Goyder, and Kriti Gupta

September 12, 2025 at 3:42 PM UTC

Fresh off its own public-market debut, Miami International Holdings Inc. started its physical trading floor for options with some of the largest market-making firms, including Jane Street Group, Susquehanna International Group and Citadel Securities providing quotes out of Miami.

The new location gives MIAX, as the company is known, access to a slice of the market it was previously excluded from — the business of handling complex single stock and ETF orders, which are still frequently handled in person at places including the Philadelphia Stock Exchange, founded in 1790 and now owned by Nasdaq Inc.