Miami International Holdings, Inc. (MIAX) stock
Close on Nov 13, 2026Market cap $3.68BP/E 13.2Yield –
Miami International Holdings, Inc. grew revenue 14.0% to $1.50B over the twelve months to Sep 30, 2026. Operating income rose 190.0% to $163.66M, moving the operating margin from 4.3% to 10.9%. Free cash flow was $220.14M, up 63.0% from a year earlier. At the latest close the market valued the company at $3.68B, 13.2 times its earnings.
Key statistics
Valuation at the latest close; fundamentals over the trailing twelve months, balances at Sep 30, 2026
Valuation
- Market cap
- $3.68B
- P/E ratio
- 13.2
- Price to sales
- 2.45
- Price to book
- 3.02
- Dividend yield
- –
- Free cash flow yield
- 5.98%
Fundamentals
- Revenue
- $1.50B
- Net income
- $296.85M
- EPS, diluted
- $2.80
- Free cash flow
- $220.14M
- Book value per share
- $11.01
- Diluted shares
- 111M
Trading
- Next earnings
- Feb 24, 2027 (estimated, after the close)
- Previous close
- $36.07
- Open
- $36.32
- Day's range
- $35.99 – $37.81
- Volume
- 986,250
- Average volume (20 days)
- 1,390,742
- Index membership
- Russell 2000 (since Dec 2025), Russell 3000 (since Aug 2025)
- 52-week range
- $29.06 – $57.14
- RSI (14 days)
- 61.5
- Volatility (1 year)
- 42.6%
- Relative volume
- 0.66×
Index membership is inferred from the holdings of funds that track each index (IWM, IWV), as reported to the SEC for Jun 30, 2026. Join dates come from quarterly fund reports since 2019, so they are accurate to the quarter.
Total return vs. the S&P 500
Price change plus reinvested dividends, to the close on Nov 13, 2026. The S&P 500 is measured by the SPY fund.
| Period | MIAX | S&P 500 | Difference | MIAX per year | S&P 500 per year |
|---|---|---|---|---|---|
| 1 month | +25.5% | -3.0% | +28.5 pts | ||
| 3 months | -15.5% | -2.8% | −12.8 pts | ||
| Year to date | -16.4% | +11.5% | −27.9 pts | ||
| 1 year | -23.8% | +13.5% | −37.2 pts |
Four years at a glance
Fiscal years 2022 to 2025 and trailing twelve months, USD
Revenue
Gross profit
Operating income
Net income
EPS, diluted
Free cash flow
Press releases
Releases Miami International filed with the SEC as exhibits to Form 8-K or 6-K
- Results
- Results
- Results
- Results
- News
- News
About Miami International
Security Brokers, Dealers & Flotation Companies
The company operates regulated financial marketplaces and exchange platforms across multiple asset classes, including options, cash equities, and futures. Through venues such as MIAX Options, MIAX Pearl, MIAX Emerald, MIAX Sapphire, and MIAX Pearl Equities, it provides electronic trading, execution, and central clearing services. In addition, it operates a full-service futures commission merchant through Dorman Trading and lists international capital market instruments via the Bermuda Stock Exchange and The International Stock Exchange. The firm serves retail customers, introducing brokers, institutional clients, market makers, and professional traders.
Company profile, executives and historyMiami International stock: common questions
What is Miami International's stock price?
MIAX closed at $37.08 on Nov 13, 2026, up 2.80% on the day. Over the past 52 weeks it traded between $29.06 and $57.14.
What is Miami International's market cap?
Miami International was worth $3.68B at the close on Nov 13, 2026: the share price times the diluted shares outstanding.
What is MIAX's P/E ratio?
MIAX trades at 13.2 times earnings, based on diluted earnings per share of $2.80 over the twelve months to Sep 30, 2026.
How much revenue does Miami International make?
Miami International reported revenue of $1.50B for the twelve months to Sep 30, 2026, up 14.0% from a year earlier.
Does Miami International pay a dividend?
No. Miami International has not paid a cash dividend over the last twelve months.
When does Miami International report earnings next?
Miami International is expected to report Q4 FY2026 results on Feb 24, 2027, after the close. The date is estimated from its past reporting pattern until the company confirms it.
How has MIAX stock performed over the past year?
Including dividends, MIAX returned -23.8% over the past year, against +13.5% for the S&P 500.
How many MIAX shares are sold short?
7M shares were sold short at the latest FINRA report, 9.30% of the float, or 4.6 days of average trading volume.
Who are Miami International's competitors?
Companies most similar to Miami International by business, industry and size include MKTX, OPY, BULL, IBKR, TIGR.
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