MIAMI INTERNATIONAL HOLDINGS, INC. Annual Report: A Comprehensive Investor Summary

Dive into the fiscal year 2025 performance and strategic direction of MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) with this comprehensive summary, crafted from their latest 10-K filing. Designed for retail investors, we break down MIAX's business, financial health, key achievements, risks, and future outlook into an easily digestible format.

1. Company Overview and Annual Performance Highlights

MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) operates a diverse portfolio of financial exchanges, enabling trading across key asset classes like stock options, equities, and futures contracts. The company has also expanded its international footprint.

Fiscal year 2025 was a year of significant transformation and growth for MIAX. Total revenue surged by a robust 11.1% to $4.66 million, building on $4.19 million in 2024 (which itself grew 12.5% from $3.73 million in 2023). This growth also generated a positive net income of $0.8 million, resulting in Earnings Per Share (EPS) of $0.80 based on common shares outstanding post-IPO. Beyond the strong financials, MIAX completed its Initial Public Offering (IPO) in August, acquired TISEG, and divested MIAXdx, demonstrating a clear strategy for market expansion and portfolio optimization.

2. Detailed Financial Performance

MIAX diversifies its revenue across several key exchange operations:

• Transaction and Clearing Fees: The primary revenue driver, these fees from trading activity on its exchanges totaled $1.9 million, or 40.8% of total revenue in 2025.
• Access Fees: Connecting to MIAX's trading platforms generated $1.48 million, representing 31.8% of revenue.
• Market Data Fees: Selling market activity data brought in $1.09 million, or 23.4% of revenue.
• Other Products/Services: This category contributed $0.19 million.

MIAX generated revenue across these market segments in 2025:

• Options: The largest segment, generating $2.5 million.
• Equities: Contributed $1.25 million.
• Futures: Generated $0.47 million.
• International Operations: Added $0.335 million, reflecting the company's growing global reach.

Beyond revenue, MIAX incurred operating expenses of $3.7 million, resulting in an operating income of $0.96 million. After accounting for interest and taxes, the company earned a net income of $0.8 million for the year, demonstrating profitability and strong revenue growth.

3. Key Strategic Achievements and Operational Changes

Major Achievements:

• Successful Initial Public Offering (IPO): On August 15, 2025, MIAX completed its IPO, issuing 1 million common shares and 500,000 convertible preferred shares. This landmark event raised $10 million in new capital, significantly strengthening the company's balance sheet and funding future growth initiatives.
• Strategic Acquisition of TISEG: In June 2025, MIAX acquired TISEG for approximately $1 million. This strategic acquisition granted MIAX a crucial exchange license, expanded customer relationships, and bolstered its international market presence and product offerings.
• Optimized Business Portfolio: MIAX sold its MIAXdx business unit, with the sale finalizing in January 2026. This strategic divestiture of non-core assets allows the company to sharpen its focus and allocate resources more efficiently towards its core, high-growth exchange operations.

4. Financial Health and Capital Structure

MIAX significantly improved its financial health and reduced its debt burden in 2025:

• Substantial Debt Reduction: MIAX aggressively reduced its overall debt. The 2029 Senior Secured Term Loan decreased from $60 million in 2024 to $50 million in 2025. Total debt across all categories fell from approximately $93 million in 2024 to around $75 million by year-end 2025. This reduction enhances financial flexibility and lowers interest expenses.
• Strengthened Cash Position: The $10 million IPO capital, combined with operational cash flow, boosted MIAX's cash and cash equivalents to $18 million by the end of 2025. This provides ample liquidity for operations and strategic investments.
• Improved Solvency: The combination of debt reduction and increased equity from the IPO resulted in a healthier debt-to-equity ratio, indicating improved long-term solvency.

5. Principal Risks to Investors

While MIAX demonstrates strong growth, investors should consider these key risks:

• Customer Concentration: A significant portion of MIAX's revenue comes from a few key clients. In 2025, the top three customers accounted for 51.5% of total revenue. Losing or significantly reducing business from any of these major customers could materially impact MIAX's financial performance.
• Regulatory Environment: As a financial exchange operator, MIAX operates under extensive and evolving regulations. Changes in market structure rules, transaction fee caps, data reporting, or international regulatory frameworks could impact profitability and operational flexibility.
• Technological and Cybersecurity Risks: Operating complex trading platforms demands continuous technological investment and robust cybersecurity. System outages, data breaches, or failing to keep pace with technological advancements could disrupt operations, erode trust, and incur significant costs.
• Intense Competition: The exchange industry is highly competitive, with established players and new entrants vying for market share. MIAX competes on trading speed, technology, pricing, and product innovation.
• Market Volatility: Overall market conditions and volatility influence trading volumes and, consequently, transaction-based revenues. Economic downturns or prolonged low market activity could negatively affect MIAX's revenue.

6. Competitive Positioning

MIAX actively enhances its competitive position through strategic investments and technological innovation. The TISEG acquisition expanded its international footprint and diversified its product offerings, particularly in the European market. MIAX differentiates itself through:

• Proprietary Technology: High-performance, low-latency trading technology attracts and retains sophisticated market participants.
• Product Innovation: Developing and launching new derivatives products and trading functionalities captures emerging market opportunities.
• Customer-Centric Approach: Providing tailored solutions and superior service to its diverse client base.

MIAX is a growing player, particularly in the options and international exchange segments, challenging larger incumbents with agility and specialized offerings.

7. Strategic Direction and Leadership

The IPO fundamentally shifted MIAX's strategic direction, emphasizing transparency, accountability to public shareholders, and enhanced capital access for growth. Key strategic pillars include:

• Growth through Acquisition: The TISEG acquisition underscores a strategy to expand market reach and product capabilities through targeted M&A.
• Portfolio Optimization: The MIAXdx divestiture reflects a commitment to streamlining operations and focusing on core, high-potential business segments.
• Technology Leadership: Continued investment in cutting-edge trading technology and infrastructure remains a core strategic imperative.
• Global Expansion: Leveraging international operations to capture growth in diverse financial markets.

The leadership team maintains continuity in strategic execution.

8. Future Outlook

MIAX is strategically positioned for continued growth. The IPO capital provides a strong foundation for future investments, and TISEG's integration is expected to yield synergies and expand market opportunities, particularly in international derivatives and equities.

Management anticipates continued revenue growth, driven by increasing trading volumes, new asset class expansion, and further international penetration. Focusing on core exchange operations post-MIAXdx sale should improve operational efficiency and profitability. Key initiatives for the upcoming year include enhancing technological infrastructure, exploring new product listings, and strengthening its global network of market participants.

9. Market Trends and Regulatory Landscape

MIAX navigates a dynamic market and regulatory environment:

• Digital Transformation of Trading: The ongoing shift to electronic and automated trading drives demand for efficient, high-speed exchange platforms, a trend MIAX is well-positioned to capitalize on.
• Growth in Derivatives Markets: Increased investor sophistication and risk management needs fuel global growth in options and futures trading.
• Data Monetization: The rising value of market data presents opportunities for MIAX to expand its market data offerings.
• Regulatory Scrutiny: Global regulators increasingly focus on market integrity, data privacy, and fair market access and pricing. MIAX must continuously adapt to evolving compliance, which can impact operational costs and business models.
• Cross-Border Harmonization: Efforts to harmonize financial regulations across jurisdictions present both opportunities for easier international expansion and challenges in adapting to new standards.

MIAX's strategic investments in technology and international expansion navigate these trends effectively, while its robust compliance framework addresses the evolving regulatory landscape.