Miami International Holdings, Inc. (MIAX)
Miami International Holdings, Inc. brought in $1.5B of revenue over the twelve months to September 30, 2026. Net income was $296.8M, a net margin of 19.8%. Operating cash flow minus capital spending left $145M of free cash flow in fiscal 2025. At September 30, 2026 it held $698.9M in cash against $1.5M of debt. Its latest periodic report to the SEC is the quarterly report (10-Q) filed on November 2, 2026.
Key facts about Miami International Holdings, Inc.
- Net worth
- Miami International Holdings, Inc. has a market value (market cap) of $3.5B at the latest share price, and shareholders' equity of $1.2B on its balance sheet at September 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.
- Revenue and profit
- In fiscal 2025 revenue was $1.4B (+19.6% year on year), with a net loss of $70M. Over the 12 months to September 30, 2026: revenue $1.5B, net income $296.8M.
- Cash flow
- In fiscal 2025 operations brought in $167.8M of cash; after $22.8M of capital spending, free cash flow was $145M.
- Latest report
- The latest periodic report (quarterly report, 10-Q) was filed with the SEC on November 2, 2026 and covers the period to September 30, 2026. Open on SEC EDGAR
- Next earnings report
- Miami International Holdings, Inc.'s next report is expected around February 24, 2027. That is an estimate from its filing rhythm, not a date the company has announced.
What Miami International Holdings, Inc. does
Miami International Holdings, Inc. is registered with the SEC under industry code SIC 6211 (Security Brokers, Dealers & Flotation Companies). Its shares trade on NYSE under the ticker MIAX.
Revenue and profit by year
Key figures
| Fiscal year | Revenue | Net income | Diluted EPS | Free cash flow |
|---|---|---|---|---|
| 2025 | $1.4B | -$70M | -$1.00 | $145M |
| 2025 | $1.1B | $102.1M | $1.39 | $84.7M |
| 2023 | $1B | -$20.9M | -$0.37 | -$65.4M |
Earnings: every quarter and the next report date
Full financial statements: income, balance sheet and cash flow
Where MIAX ranks in Finance
Latest SEC filings
What Miami International Holdings, Inc. has filed recently, newest first. Each links to the original document on SEC EDGAR.
- November 2, 2026Quarterly report 10-Q · period to September 30, 2026Revenue rose 11% to $376.2M versus the same quarter last year; diluted EPS $0.47 versus -$1.46.
- October 29, 2026
- October 27, 2026Passive stake changed SCHEDULE 13G/A
- August 14, 2026Passive stake (5% or more) SCHEDULE 13G
- August 7, 2026Quarterly report 10-Q · period to June 30, 2026Revenue rose 18% to $387.6M versus the same quarter last year; diluted EPS $0.40 versus $0.30.
- August 5, 2026
- July 29, 2026Passive stake (5% or more) SCHEDULE 13G
- July 21, 2026Other event 8-K
- June 22, 2026
- June 18, 2026
What is MIAX worth? A DCF from its reported cash flow
Insider trades
What the people running Miami International Holdings, Inc. did with its shares, from the Form 4 filings they must send the SEC within two business days.
Insiders sold $21.7M worth of shares in the last 90 days and bought none on the open market. All of the selling was pre-planned under Rule 10b5-1 trading plans.
| Date | Insider | What | Shares | Value |
|---|---|---|---|---|
| November 5, 2026 | Teekell Judson GrayDirector | Other changeindirect | 81,000 | - |
| November 5, 2026 | Teekell Judson GrayDirector | Other change | 20,250 | - |
| November 4, 2026 | Schafer Douglas M. JREVP and CIO | Exercised options | 8,000 | $96K |
| November 4, 2026 | Schafer Douglas M. JREVP and CIO | Soldpre-planned (10b5-1) | 8,000 | $280K |
| November 4, 2026 | Comly Barbara J.EVP, GC & Corporate Secretary | Exercised options | 8,799 | $105.6K |
| November 4, 2026 | Comly Barbara J.EVP, GC & Corporate Secretary | Exercised options | 47,223 | $566.7K |
| November 4, 2026 | Comly Barbara J.EVP, GC & Corporate Secretary | Soldpre-planned (10b5-1) | 56,022 | $2M |
| November 3, 2026 | Schafer Douglas M. JREVP and CIO | Exercised options | 40,000 | $480K |
Who owns MIAX
Three views from three kinds of SEC filings, each with its own date. They overlap and are not added up.
5% holders
| Holder | Of class | Filed |
|---|---|---|
| Horizon Kinetics Asset Management LLC13D, may seek influence with 1 related filers | 7.8% | May 21, 2026 |
| BlackRock, Inc.13G, passive | 6.2% | October 27, 2026 |
| T. Rowe Price Investment Management, Inc.13G, passive | 5.3% | August 14, 2026 |
Largest institutional holders
Positions that investment managers reported on Form 13F for the quarter ended June 30, 2026, largest first, with the change on the quarter ended March 31, 2026. Managers file 13F up to 45 days after a quarter ends. 205 managers reported a position.
| Holder | Shares | Change on quarter |
|---|---|---|
| Horizon Kinetics Asset Management LLC | 7,842,173 | +4,390,624 |
| BlackRock, Inc. | 5,071,754 | +2,839,074 |
| Vanguard Portfolio Management LLC | 3,786,418 | +2,411,472 |
| Susquehanna International Group, Llp | 3,355,043 | +58,697 |
| Vanguard Capital Management LLC | 3,165,686 | +1,750,707 |
| Invesco Ltd. | 2,020,650 | +435,647 |
| J Digital 6 LLC | 1,807,234 | new |
| Blair William & Co | 1,769,432 | +1,103,651 |
| Balyasny Asset Management L.P. | 1,682,924 | new |
| American Century Companies Inc | 1,587,196 | +365,711 |
| State Street Corp | 1,432,894 | +720,565 |
| Jpmorgan Chase & Co | 1,427,881 | +189,875 |
| Geode Capital Management, LLC | 1,395,680 | +615,898 |
| Adage Capital Partners GP, L.L.C. | 1,143,920 | -103,079 |
| Healthcare of Ontario Pension Plan Trust Fund | 1,039,449 | +799,449 |
| Morgan Stanley | 950,593 | -196,363 |
| Allspring Global Investments Holdings, LLC | 857,682 | -254,579 |
| Two Sigma Investments, LP | 888,109 | -5,609 |
| Bank of America Corp | 856,980 | -43,902 |
| Alyeska Investment Group, L.P. | 848,750 | -598,704 |
Insiders
25 insiders reported holding 11,579,905 shares in total, about $406.8M at the last price.
| Holder | Shares |
|---|---|
| Stahl MurrayDirector, 10% owner | 4,633,8424,633,842 held indirectly |
| Gallagher Thomas P.Chairman & CEO, Director | 2,209,8171,423,275 held indirectly |
| Horizon Kinetics Asset Management LLC10% owner | 2,170,8982,170,898 held indirectly |
| Comly Barbara J.EVP, GC & Corporate Secretary | 839,564 |
| Schafer Douglas M. JREVP and CIO | 387,414 |
| Brown ShellyEVP, Chief Strategy Officer | 316,490 |
| Smollen JohnEVP, New Product Development | 178,212 |
| Eckert Kurt M.Director | 149,612 |
| Deitzel EdwardEVP, CRO, CCO MIAX Exchanges | 119,601 |
| Teekell Judson GrayDirector | 89,501 |
Questions about MIAX
What does Miami International Holdings, Inc. do?
Miami International Holdings, Inc. is a company in the Finance sector, listed on NYSE as MIAX. Its shares trade on NYSE under the ticker MIAX.
What is Miami International Holdings, Inc.'s net worth?
Miami International Holdings, Inc. has a market value (market cap) of $3.5B at the latest share price, and shareholders' equity of $1.2B on its balance sheet at September 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.
Is Miami International Holdings, Inc. profitable?
Yes. Over the twelve months to September 30, 2026 it reported net income of $296.8M on revenue of $1.5B, a net margin of 19.8%.
How much revenue does Miami International Holdings, Inc. make?
Over the twelve months to September 30, 2026 Miami International Holdings, Inc. reported revenue of $1.5B.
When did Miami International Holdings, Inc. last report?
Its most recent periodic report is the quarterly report (10-Q) filed on November 2, 2026. It covers the period to September 30, 2026. Its newest filing of any kind is the insider trade from November 9, 2026.
When is Miami International Holdings, Inc.'s next earnings report?
Miami International Holdings, Inc.'s next report is expected around February 24, 2027. That is an estimate from its filing rhythm, not a date the company has announced.
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Where the numbers come from
Financial figures are the values Miami International Holdings, Inc. tagged in its own SEC filings (XBRL), taken from the latest filing for each period, so restatements replace older figures. Revenue, profit and cash flow are for full fiscal years unless marked as the last twelve months, which is the sum of the four most recent quarters. Where a company reports only the full year, the fourth quarter is the year minus the first three.
Prices are delayed end-of-day market data in the listing currency, and market cap moves with the price. P/E is shown only when earnings per share are positive. Nothing here is investment advice.