Security Brokers, Dealers & Flotation Companies · SIC 6211

MIAMI INTERNATIONAL HOLDINGS, INC.

MIAX

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Latest revenue

$369.7M

as of 2026-03-31

Latest net income

$170.2M

as of 2026-03-31

Net margin

46.0%

as of 2026-03-31

Price · 5Y

+92.5% / yr 78.8 pts / yr vs S&P 500 65.2% total
Compare:

Live market

delayed ≤15 min
$51.42
0.04%
Market cap
$4.88B
Enterprise value
$4.88B
P/E (trailing)
Forward P/E
P/B
Dividend yield
0.0%
52-wk high
$57.14
52-wk low
$28.63
Beta
Shares out
94.9M

5-year trend

dashed bar = fiscal Q4 derived from 10-K annual − Q1 − Q2 − Q3 (SEC requires only three 10-Qs per year).

What this company does

AI

Item 1. Business The following description of our business should be read in conjunction with the information included elsewhere in this Annual Report on Form 10-K for the year ended December 31, 2025. This description contains forward-looking statements that involve risks and uncertainties. Actual results could differ significantly from the results discussed in the forward-looking statements due to the factors set forth in “Risk Factors” and elsewhere in this Annual Report on Form 10-K. Overview We are a technology-driven leader in building and operating regulated financial marketplaces across multiple asset classes and geographies. Our MIAX Exchanges, MIAX Futures Exchange and Bermuda…

AI summary unavailable — showing raw filing excerpt

Generated from MIAX's filing dated 2026-03-06

Key risks

AI

Table of Contents Item 1A. Risk Factors A description of the risks and uncertainties associated with our business is set forth below. You should carefully consider the risks and uncertainties described below, together with all of the other information included in this Annual Report, including the section titled “Management’s Discussion and Analysis of Financial Condition and Result of Operations” and our consolidated financial statements and the related notes thereto. Our business, results of operations, financial condition, or prospects could also be materially and adversely affected by risks and uncertainties that are not presently known to us or that we currently believe are not…

AI summary unavailable — showing raw filing excerpt

Generated from MIAX's filing dated 2026-03-06

Profitability

Gross margin

31.6%

30.5%

Operating margin

6.7%

2820.9%

Net margin

-5.1%

157.3%

Return on assets

-5.6%

153.0%

Earnings tracker

QuarterRevenueYoYNet incomeYoYNet margin

Q1 2026

2026-03-31

$369.7M+13.0%$170.2M+894.7%46.0%

Q3 2025

2025-09-30

$339.8M+22.8%$-100.0M-3020.3%-29.4%

Q1 2025

2025-03-31

$327.1M$-21.4M-6.5%

Q3 2024

2024-09-30

$276.7M$-3.2M-1.2%

Year-over-year change vs the same fiscal quarter one year prior. Revenue + net income sourced from SEC 10-Q / 10-K filings — no analyst-consensus dependency.

Industry trend

Security Brokers, Dealers & Flotation Companies · SIC 6211

No data yet for industry average

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Insider activity

Insider buying

$3.1M

Insider selling

$34.7M

Net activity

−$31.6M

Distinct insiders

16

Open-market trades over the last 365 days.

Recent transactions

DateInsiderTypeSharesPriceValue
2026-05-15

Lance Emmons

EVP and CFO

Sale35,000$56.36$2.0M
2026-05-05

Thomas P. Gallagher

Chairman & CEO

Sale15,771$47.92$755.7K
2026-05-04

Thomas P. Gallagher

Chairman & CEO

Sale54,229$47.26$2.6M
2026-05-04

Edward Deitzel

EVP, CRO, CCO MIAX Exchanges

Sale11,000$47.28$520.1K
2026-05-04

Shelly Brown

EVP, Chief Strategy Officer

Sale16,000$47.28$756.5K
2026-05-04

Judson Gray Teekell

Director

Sale3,000$47.30$141.9K
2026-05-04

Douglas M. Schafer JR

EVP and CIO

Sale48,000$47.25$2.3M
2026-05-04

Kurt M. Eckert

Director

Sale5,625$47.29$266.0K
2026-05-04

Barbara J. Comly

EVP, GC & Corporate Secretary

Sale28,000$47.26$1.3M
2026-04-15

Thomas P. Gallagher

Chairman & CEO

Sale70,001$43.36$3.0M
2026-04-15

Thomas P. Gallagher

Chairman & CEO

Sale104,124$43.36$4.5M
2026-04-15

Thomas P. Gallagher

Chairman & CEO

Sale49,900$43.68$2.2M
2026-04-15

Barbara J. Comly

EVP, GC & Corporate Secretary

Sale29,667$43.64$1.3M
2026-04-08

Shelly Brown

EVP, Chief Strategy Officer

Sale16,434$42.08$691.5K
2026-04-08

Edward Deitzel

EVP, CRO, CCO MIAX Exchanges

Sale7,572$42.02$318.2K
2026-04-07

Edward Deitzel

EVP, CRO, CCO MIAX Exchanges

Sale762$42.00$32.0K
2026-04-07

Edward Deitzel

EVP, CRO, CCO MIAX Exchanges

Sale4,001$42.00$168.0K

Source: SEC Form 4 filings. Officers, directors, and 10%+ owners must disclose share transactions within two business days. RSU grants and tax-withholding rows are excluded by default — compensation activity is not a trading signal.

Who owns MIAX

Institutional value

$631.2M

Total shares held

16.3M

Distinct holders

96

-66 vs prior

As of

2026-03-31

Prior: 2025-12-31

Filers with $100M+ AUM disclose holdings 45 days after quarter end.

Top institutional holders

#ManagerSharesValueQoQ changeAction
1BlackRock, Inc.2.2M$86.9M+479.2K (+27.3%)Added
2Invesco Ltd.1.6M$61.7M+306.0K (+23.9%)Added
3VANGUARD CAPITAL MANAGEMENT LLC1.4M$55.1MNew
4VANGUARD PORTFOLIO MANAGEMENT LLC1.4M$53.5MNew
5JPMORGAN CHASE & CO1.2M$46.4M+423.7K (+52.0%)Added
6Allspring Global Investments Holdings, LLC1.1M$43.8M+180.2K (+19.3%)Added
7BLAIR WILLIAM & CO/IL665.8K$25.9M+10.9K (+1.7%)Added
8BNP PARIBAS FINANCIAL MARKETS572.5K$22.3M+381.4K (+199.7%)Added
9FRANKLIN RESOURCES INC568.2K$22.1M+141.0K (+33.0%)Added
10SEVEN GRAND MANAGERS, LLC550.0K$21.4M+150.0K (+37.5%)Added
11SEI INVESTMENTS CO526.4K$20.5M+186.1K (+54.7%)Added
12Clearstead Advisors, LLC503.7K$19.6MNew
13UBS Group AG423.4K$16.5M+260.5K (+159.9%)Added
14TOCQUEVILLE ASSET MANAGEMENT L.P.312.1K$12.1M+91.4K (+41.4%)Added
15ROYCE & ASSOCIATES LP309.3K$12.0M+127.8K (+70.4%)Added
16Penn Capital Management Company, LLC273.8K$10.7M+21.7K (+8.6%)Added
17Nuveen, LLC231.9K$9.0M+192.8K (+492.9%)Added
18VANGUARD FIDUCIARY TRUST CO202.6K$7.9MNew
19FEDERATED HERMES, INC.201.1K$7.8M+1.1K (+0.6%)Added
20NEW YORK STATE COMMON RETIREMENT FUND179.0K$7.0M+16.8K (+10.4%)Added

Source: SEC Form 13F-HR. Positions aggregated across sub-managers within each firm. Options (puts/calls) excluded — common stock only.

Top questions investors are asking

Coming once MIAX's latest filing finishes processing.