Monashee Investment Management Buys Stake in Miami International Holdings

Investment firm purchases 150,000 shares of the exchange operator's stock

Mar. 3, 2026 at 12:31am

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Monashee Investment Management LLC has purchased a new stake of 150,000 shares in Miami International Holdings, Inc. (NYSE:MIAX), the parent company of the Miami International Securities Exchange. The investment is valued at approximately $6 million and represents about 0.18% ownership of the company.

Why it matters

Miami International Holdings operates electronic trading venues and provides market infrastructure for listed options and related products. This investment by Monashee, a prominent institutional investor, signals confidence in the company's growth potential and market position.

The details

According to a regulatory filing, Monashee Investment Management acquired the 150,000 shares of Miami International Holdings in the third quarter. The investment makes up about 3% of Monashee's overall portfolio, making it the firm's 9th largest holding.

  • Monashee Investment Management purchased the 150,000 shares in the third quarter of the year.

The players

Monashee Investment Management LLC

An investment management firm that has purchased a new stake in Miami International Holdings, Inc.

Miami International Holdings, Inc.

The parent company of the Miami International Securities Exchange, which operates electronic trading venues and provides market infrastructure for listed options and related products.

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The takeaway

This investment by Monashee Investment Management underscores the market's confidence in Miami International Holdings' growth potential as an operator of electronic trading platforms and market infrastructure. The stake represents a significant position for the investment firm, signaling its belief in the company's long-term prospects.