Company Description
Miami International Holdings, Inc. (NYSE: MIAX) is a financial services company focused on the capital markets sector. The company describes itself as a technology-driven operator of regulated financial markets across multiple asset classes and geographies. According to its public disclosures and press releases, Miami International Holdings builds and operates exchanges and related market infrastructure serving options, futures, equities and international securities.
Miami International Holdings operates through the MIAX Exchange Group in the United States and through international exchange subsidiaries. Its U.S. exchange subsidiaries include MIAX Options, MIAX Pearl, MIAX Emerald and MIAX Sapphire, which together form the MIAX Exchange Group for options trading, as well as MIAX Pearl Equities for U.S. equities and MIAX Futures for futures trading. The company has also referenced MIAXdx, a derivatives exchange, in its communications.
Beyond its U.S. platforms, Miami International Holdings reports that it operates and owns interests in several international exchanges. These include The Bermuda Stock Exchange (BSX) and The International Stock Exchange (TISE). TISE is described as a regulated exchange headquartered in Guernsey that offers a range of financial products and securities services, including a Qualified Investor Bond Market, listings of high yield bonds, structured finance products, securitization transactions, investment funds, UK REITs and a sustainable finance segment known as TISE Sustainable. Miami International Holdings also notes that TISE maintains a presence and has members based in financial centers such as Dublin, Jersey and London.
Miami International Holdings states that its MIAX Exchange marketplaces are enabled by in-house built, proprietary technology. The company maintains a portfolio of U.S. exchange and clearing licenses in both securities and futures, and operates markets across several asset classes, including options, cash equities, futures and options on futures. In addition, the company owns Dorman Trading, which it describes as a full-service Futures Commission Merchant.
According to recent trading updates, Miami International Holdings, through the MIAX Exchange Group, reports activity in multi-listed U.S. equity options and in U.S. equities via MIAX Pearl Equities. The company also reports trading statistics for MIAX Futures, including average daily volume metrics. These updates highlight the company’s role in facilitating trading volume and market share in options and futures markets, as disclosed in its periodic press releases.
Miami International Holdings is listed on the New York Stock Exchange under the ticker symbol MIAX. The company has filed a registration statement on Form S-1 with the U.S. Securities and Exchange Commission and has also reported secondary public offerings of its common stock by existing stockholders, as described in its SEC filings and related press releases. In an 8-K filing, the company identified operating segments associated with options, equities, futures and international activities, and revenue categories such as transaction and clearing fees, access fees, market data fees and other products and services.
In addition to operating exchanges, Miami International Holdings engages in corporate transactions and strategic partnerships related to its market infrastructure. For example, the company announced an agreement to sell a majority stake in MIAX Derivatives Exchange (MIAXdx) to Robinhood Markets, Inc. in partnership with Susquehanna International Group, while retaining a minority equity interest. The company has also been identified as an anchor investor in Architect Financial Technologies Inc.’s Series A round, which is intended to support a perpetual futures exchange operated by an Architect affiliate.
Through its subsidiaries and exchange platforms, Miami International Holdings participates in the broader ecosystem of regulated financial markets. Its disclosures emphasize technology-driven exchange operations, regulated status across multiple jurisdictions, and a focus on options, equities, futures and international listings. Investors and market participants interested in MIAX stock may consider the company’s exchange operations, trading volumes and segment disclosures as presented in its public filings and trading result announcements.
Business segments and activities
In its Form S-1 registration statement, Miami International Holdings identifies operating segments associated with options, equities, futures and international markets. Within these segments, the company reports revenue from transaction and clearing fees, access fees, market data fees and other products and services. These categories reflect the ways in which the company characterizes its exchange-related activities and services in its SEC filings.
The company’s options segment relates to its MIAX-branded options exchanges. The equities segment is associated with MIAX Pearl Equities. The futures segment is linked to MIAX Futures, which lists and clears futures contracts. The international segment encompasses activities related to exchanges such as BSX and TISE. A corporate/non-segment category is also referenced in the S-1 for certain items that are not allocated to the operating segments.
Regulatory and listing framework
Miami International Holdings notes that its exchanges are regulated marketplaces. MIAXdx is described as a Designated Contract Market and Derivatives Clearing Organization with regulatory approval from the Commodity Futures Trading Commission to list and clear fully collateralized futures, options on futures and swaps. TISE is described as a regulated exchange, and BSX is identified as a stock exchange in Bermuda. These descriptions indicate that the company’s platforms operate within established regulatory frameworks in their respective jurisdictions, as stated in the company’s and its subsidiaries’ press releases.
Capital markets activity
The company has reported activity in the capital markets through its SEC filings. An 8-K dated December 15, 2025 describes unregistered sales of equity securities, including the issuance of common stock in connection with the conversion of a convertible promissory note and the exercise of warrants. The same filing notes the completion of a public secondary offering in which existing stockholders sold shares of common stock, with the company stating that it did not sell shares or receive proceeds in that offering.
Miami International Holdings has also filed a registration statement on Form S-1, which includes segment and revenue disclosures. The S-1 references voting and non-voting common stock, preferred stock and other equity components, as well as operating segments and revenue categories related to its exchange and clearing activities.
Status and listing
Based on the available information, Miami International Holdings, Inc. is an emerging growth company under SEC rules, as indicated in its 8-K filings. The company’s common stock trades on the New York Stock Exchange under the symbol MIAX. The provided filings and press releases do not indicate a delisting, deregistration, bankruptcy or completed merger that would change this status.
Frequently Asked Questions (FAQ)
- What does Miami International Holdings, Inc. do?
Miami International Holdings, Inc. operates regulated financial markets across multiple asset classes. According to its press releases, it runs options, futures, equities and international exchanges, and owns a Futures Commission Merchant. - On which exchange does MIAX trade?
The company states that its common stock is listed on the New York Stock Exchange under the ticker symbol MIAX. - Which exchanges are part of the MIAX Exchange Group?
Press releases identify MIAX Options, MIAX Pearl, MIAX Emerald and MIAX Sapphire as U.S. options exchanges within the MIAX Exchange Group, along with MIAX Futures and MIAX Pearl Equities as related platforms. - What international exchanges are associated with Miami International Holdings?
The company reports that it operates or owns interests in The Bermuda Stock Exchange (BSX) and The International Stock Exchange (TISE), which provide international listing and trading venues. - How does Miami International Holdings describe its technology?
The company describes itself as technology-driven and states that its MIAX Exchange marketplaces are enabled by in-house built, proprietary technology. - What business segments does the company report in its SEC filings?
In its Form S-1 registration statement, Miami International Holdings identifies options, equities, futures and international segments, along with a corporate/non-segment category. - How does Miami International Holdings generate revenue according to its S-1?
The S-1 references revenue categories such as transaction and clearing fees, access fees, market data fees and other products and services across the company’s operating segments. - What is MIAXdx?
MIAXdx is described in a press release as a Designated Contract Market and Derivatives Clearing Organization with CFTC approval to list and clear fully collateralized futures, options on futures and swaps. Miami International Holdings has announced an agreement to sell a majority stake in MIAXdx while retaining a minority interest. - Does Miami International Holdings own any non-exchange financial entities?
Yes. The company states that it owns Dorman Trading, which it describes as a full-service Futures Commission Merchant. - Is Miami International Holdings classified as an emerging growth company?
In multiple 8-K filings, the company indicates that it is an emerging growth company under applicable SEC definitions.
Stock Performance
Miami Intl Hldg (MIAX) stock last traded at $41.32, up 0.74% from the previous close. Over the past 12 months, the stock has gained 34.4%. At a market capitalization of $3.9B, MIAX is classified as a mid-cap stock with approximately 91.7M shares outstanding.
Latest News
Miami Intl Hldg has 10 recent news articles, with the latest published 2 days ago. Of the recent coverage, 9 articles coincided with positive price movement and 1 with negative movement. Key topics include earnings, conferences, earnings date, partnership. View all MIAX news →
SEC Filings
Miami Intl Hldg has filed 5 recent SEC filings, including 3 Form 144, 2 Form 4. The most recent filing was submitted on April 7, 2026. SEC filings provide transparency into a company's financial condition, material events, and regulatory compliance. View all MIAX SEC filings →
Insider Radar
Insider selling at Miami Intl Hldg over the past 90 days can reflect routine portfolio management, scheduled trading plans (Rule 10b5-1), tax planning, or compensation-related dispositions rather than a directional view on the stock.
Financial Highlights
Miami Intl Hldg generated $1.4B in revenue over the trailing twelve months, retaining a 31.6% gross margin, operating income reached $92.0M (6.7% operating margin), and net income was -$70.0M, reflecting a -5.1% net profit margin. Diluted earnings per share stood at $-1.00. The company generated $167.8M in operating cash flow. With a current ratio of 2.54, the balance sheet reflects a strong liquidity position.
Upcoming Events
Short Interest History
Short interest in Miami Intl Hldg (MIAX) currently stands at 2.5 million shares, up 16.2% from the previous reporting period, representing 3.0% of the float. Over the past 12 months, short interest has increased by 235.4%. This relatively low short interest suggests limited bearish sentiment.
Days to Cover History
Days to cover for Miami Intl Hldg (MIAX) currently stands at 1.8 days. This low days-to-cover ratio indicates high liquidity, allowing short sellers to quickly exit positions if needed. The days to cover has increased 78% over the past year, indicating improving liquidity conditions. The ratio has shown significant volatility over the period, ranging from 1.0 to 4.0 days.
MIAX Company Profile & Sector Positioning
Miami Intl Hldg (MIAX) operates in the Capital Markets industry within the broader Security Brokers, Dealers & Flotation Companies sector and is listed on the NYSE. In monthly performance, the stock ranks #452 among all tracked companies.
Investors comparing MIAX often look at related companies in the same sector, including Hut 8 Mining (HUT), Cleanspark Inc (CLSK), eToro Group Ltd. (ETOR), Marex Group plc (MRX), and Cipher Digital Inc (CIFR). Comparing financial metrics, valuation ratios, and stock performance across these peers can help investors evaluate MIAX's relative position within its industry.