Harvey Partners Invests $2.01M in Miami International Holdings

The investment firm acquired a 0.06% stake in the options exchange operator.

Mar. 16, 2026 at 11:21am

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Harvey Partners LLC acquired a new stake of 50,000 shares in Miami International Holdings, Inc. (NYSE:MIAX) during the third quarter, according to a recent SEC filing. The investment, valued at approximately $2,013,000, gives Harvey Partners a 0.06% ownership stake in the company.

Why it matters

Miami International Holdings operates electronic trading venues and provides market infrastructure for listed options and related products. The investment by Harvey Partners, a prominent institutional investor, signals confidence in the company's business model and growth prospects.

The details

According to the filing, Harvey Partners acquired the 50,000 shares of Miami International Holdings stock during the third quarter. This represents about 0.06% of the company's outstanding shares. Miami International Holdings is a U.S. exchange holding company that focuses on low-latency execution, order matching, and operational controls for high-volume, automated trading strategies in listed derivatives.

  • Harvey Partners acquired the 50,000 shares of Miami International Holdings stock during the third quarter.

The players

Harvey Partners LLC

An institutional investment firm that acquired a 0.06% stake in Miami International Holdings, Inc.

Miami International Holdings, Inc.

A U.S. exchange holding company that operates electronic trading venues and provides market infrastructure for listed options and related products.

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The takeaway

The investment by Harvey Partners in Miami International Holdings reflects confidence in the company's options exchange business and its ability to capitalize on trends in automated, high-frequency trading.