Miami International Holdings, INC

Market Movers (8-K)

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NYSE
Miami International Holdings, Inc. announces the dismissal with prejudice of all claims and counterclaims in its litigation with Nasdaq, Inc., resolving all disputes.
NYSE
Miami International Holdings, Inc. reported on its Annual Meeting of Stockholders held on June 16, 2026, detailing voting results for director elections, executive compensation, vote frequency, and auditor ratification.
NYSE
Miami International Holdings, Inc. has established a new Senior Executive Annual Bonus Plan, effective January 1, 2026, to incentivize performance based on annual metrics.
NYSE
Miami International Holdings, Inc. announced record first quarter 2026 results, with net revenue soaring 40% year-over-year to $128.6 million and adjusted EBITDA increasing 66% to $66.1 million.
Better than expected
NYSE
Miami International Holdings, Inc. has appointed Eric Sites to its Board of Directors, effective April 24, 2026.
NYSE
Miami International Holdings announced the passing of Board Director Murray Stahl on April 9, 2026, expressing gratitude for his service.

Quarterly Earnings (10-Q)

NYSE
Miami International Holdings, Inc. (MIAX) announced robust Q2 2026 results with total revenues up 18.3% year-over-year, driven by strong performance in its Options segment and contributions from the TISE acquisition.
Better than expected
NYSE
Miami International Holdings, Inc. (MIAX) reported a significant increase in net income and revenues for the first quarter of 2026, driven by strong performance in its Options segment and the impact of recent acquisitions.
Better than expected
NYSE
Miami International Holdings, Inc. reported a significant net loss for Q3 and 9M 2025, primarily driven by one-time debt extinguishment costs and Pyth token valuation adjustments, despite strong operational revenue growth.
Worse than expected
Capital raise
Delay expected

Annual Reports (10-K)

NYSE
Miami International Holdings reports a 19.6% revenue increase to $1.36 billion in 2025, driven by options trading, despite a net loss of $70.0 million.
Delay expected
Capital raise
Worse than expected

Insider Trading (Form 4)

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NYSE
Harish Jayabalan, EVP, CISO and CRO of Miami International Holdings, Inc., reported multiple transactions in common stock on September 25, 2026.
NYSE
Shelly Brown, EVP, Chief Strategy Officer of Miami International Holdings, Inc., sold 21,217 shares of common stock on September 16, 2026 for $38.61 per share.
NYSE
Shelly Brown, EVP, Chief Strategy Officer of Miami International Holdings, Inc., reported a transaction in 16,283 shares of common stock on September 11, 2026.
NYSE
Thomas P. Gallagher, Chairman & CEO and a Director of Miami International Holdings, Inc., sold 47,000 shares of common stock on September 3, 2026 for $42.43 per share.
NYSE
Barbara J. Comly, EVP, GC & Corporate Secretary of Miami International Holdings, Inc., sold 44,445 shares of common stock on September 2, 2026 for $40.49 per share.
NYSE
Edward Deitzel, EVP, CRO, CCO MIAX Exchanges of Miami International Holdings, Inc., sold 11,000 shares of common stock on September 3, 2026 for $42.21 per share.

Proxy Statements (Def-14A)

NYSE
Miami International Holdings, Inc. has issued its proxy statement for the 2026 Annual Meeting of Stockholders, detailing proposals for director elections, executive compensation, and auditor ratification.

New Public Companies (S-1)

NYSE
Selling stockholders of Miami International Holdings, Inc. are offering up to 6.75 million common shares, with the company receiving no proceeds from the sale.
Worse than expected
Delay expected
NYSE
Miami International Holdings, Inc. filed an S-1/A for its initial public offering of 15 million shares at an estimated price of $19.00 to $21.00 per share, aiming to raise $268.3 million to repay debt and fund growth initiatives.
Worse than expected
Delay expected
Capital raise
NYSE
Miami International Holdings, Inc. files for an initial public offering on the NYSE, highlighting strong options market growth, strategic acquisitions, and plans for new proprietary products, despite recent net losses.
Worse than expected
Delay expected
Capital raise

Schedule 13D - Activist Investments

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NYSE
Horizon Kinetics Asset Management LLC has filed an amendment to its Schedule 13D, reporting beneficial ownership of 7,400,316 shares, representing 7.8% of Miami International Holdings, Inc.'s common stock.
NYSE
Horizon Kinetics Asset Management LLC has increased its beneficial ownership in Miami International Holdings, Inc. to 12.2%, coinciding with the election of a Horizon Kinetics representative to the company's Board of Directors.
NYSE
Horizon Kinetics Asset Management LLC has filed an amendment to its Schedule 13D, reporting beneficial ownership of 12.1% of Miami International Holdings, Inc. common stock, and noting the passing of director Murray Stahl.
NYSE
Horizon Kinetics Asset Management LLC has increased its beneficial ownership in Miami International Holdings, Inc. to 11.7%, primarily for investment purposes.
NYSE
Thomas P. Gallagher and Gallagher Investments LLC have filed an exit Schedule 13D amendment, reporting their beneficial ownership in Miami International Holdings, Inc. has fallen below the 5% threshold.
Capital raise
NYSE
Miami International Holdings, Inc. CEO Thomas P. Gallagher and Gallagher Investments LLC disclose significant beneficial ownership in the company's common stock.

Schedule 13G - Passive Investments

NYSE
T. Rowe Price Investment Management, Inc. has updated its beneficial ownership filing for Miami International Holdings, reporting a 5.3% stake.