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Miami International Holdings, Inc. (MIAX)

Miami International Holdings, Inc. at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

Miami International Holdings, Inc. (MIAX) is a Financial - Capital Markets company based in US with a market capitalization of $4.5B. Revenue grew 19.6% year-over-year and the company generated $145M in free cash flow. This page tracks MIAX's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 433 employees · IPO Aug 14, 2025

Valuation

Valuation & price

$56.16 · as of May 17, 2026 · -1.2% vs 52w high

—

P/E ratio

Latest-FY diluted EPS

5.14

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$56.84$43.79$30.74Aug 25Jan 26Jun 26Aug 14, 25$30.74Aug 15, 25$31.12Aug 19, 25$32.89Aug 21, 25$34.34Aug 25, 25$33.29Aug 27, 25$34.70Aug 29, 25$37.58Sep 2, 25$36.33Sep 4, 25$35.50Sep 8, 25$37.77Sep 10, 25$36.81Sep 12, 25$37.46Sep 16, 25$38.02Sep 17, 25$38.14Sep 19, 25$38.02Sep 23, 25$39.60Sep 25, 25$41.95Sep 29, 25$40.77Oct 1, 25$38.98Oct 2, 25$41.03Oct 6, 25$43.71Oct 8, 25$44.67Oct 10, 25$43.54Oct 14, 25$43.56Oct 16, 25$42.26Oct 17, 25$41.93Oct 21, 25$41.47Oct 23, 25$42.50Oct 27, 25$44.27Oct 29, 25$43.15Oct 31, 25$43.70Nov 3, 25$45.54Nov 5, 25$45.83Nov 7, 25$48.70Nov 11, 25$49.48Nov 13, 25$48.63Nov 17, 25$46.81Nov 18, 25$46.70Nov 20, 25$42.55Nov 24, 25$44.73Nov 26, 25$45.86Dec 1, 25$44.50Dec 3, 25$44.73Dec 4, 25$45.46Dec 8, 25$45.56Dec 10, 25$42.62Dec 12, 25$42.68Dec 16, 25$43.36Dec 18, 25$44.25Dec 19, 25$44.62Dec 23, 25$47.39Dec 26, 25$46.67Dec 30, 25$45.68Jan 2, 26$43.65Jan 6, 26$44.24Jan 7, 26$42.41Jan 9, 26$42.33Jan 13, 26$41.85Jan 15, 26$42.55Jan 20, 26$42.88Jan 22, 26$44.56Jan 23, 26$42.44Jan 27, 26$41.42Jan 29, 26$41.69Feb 2, 26$41.78Feb 4, 26$40.66Feb 6, 26$42.23Feb 9, 26$41.33Feb 11, 26$41.12Feb 13, 26$42.14Feb 18, 26$40.20Feb 20, 26$40.53Feb 24, 26$39.56Feb 25, 26$40.99Feb 27, 26$42.60Mar 3, 26$42.04Mar 5, 26$42.38Mar 9, 26$41.19Mar 11, 26$39.49Mar 12, 26$38.09Mar 16, 26$39.49Mar 18, 26$39.55Mar 20, 26$39.10Mar 24, 26$39.46Mar 26, 26$38.31Mar 27, 26$37.31Mar 31, 26$38.92Apr 2, 26$40.17Apr 7, 26$41.32Apr 9, 26$41.35Apr 13, 26$42.89Apr 14, 26$42.91Apr 16, 26$44.85Apr 20, 26$44.93Apr 22, 26$45.26Apr 24, 26$45.87Apr 28, 26$47.30Apr 29, 26$47.64May 1, 26$47.17May 5, 26$47.71May 7, 26$49.77May 11, 26$52.19May 13, 26$55.21May 14, 26$56.84May 18, 26$54.51May 20, 26$51.99May 22, 26$51.42May 27, 26$50.21May 29, 26$47.25Jun 1, 26$46.10Jun 3, 26$40.33Jun 5, 26$39.21Jun 9, 26$39.80Jun 11, 26$41.27Jun 15, 26$44.11Jun 16, 26$40.24Jun 18, 26$37.65Jun 23, 26$35.81Jun 25, 26$36.74Jun 30, 26$36.31
$30.7452-week range$56.84
Loading valuation history…

Fundamentals

Key fundamentals

$4.5B

Market cap

19.6%

Revenue growth (YoY)

27.3%

Gross margin

$145M

Free cash flow (USD)

-$508.2M

Net debt

Net cash position

-12.1%

Share dilution

1/4

Graham criteria passed

Defensive-investor screen

Financial Services

Sector

Trajectory

Long-term trends

Revenue by year

2020 → 2025

FY 2020$452.5MFY 2021$751.5MFY 2022$797.9MFY 2023$1.0BFY 2024$1.1BFY 2025$1.4B
$452.5M$1.4B

Free cash flow by year

2020 → 2025

FY 2020$112.7MFY 2021$6.2MFY 2022$101.6MFY 2023$-75.1MFY 2024$72.4MFY 2025$145.0M
$112.7M$145M

Gross margin by year

2021 → 2025

FY 202124.1%FY 202224.5%FY 202322.3%FY 202424.2%FY 202527.3%
24.1%27.3%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

25

Insider sells · 90 days

Earnings

Last report: 10-Q filed May 8, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • 8-K eventUnregistered Stock IssuanceJun 22, 2026Filing
  • 8-K eventAnnual Meeting ResultsJun 18, 2026Filing
  • Insider sellInsider Sell $209K · 10b5-1 PlanBrown Shelly · EVP, Chief Strategy Officer · $208.5KJun 17, 2026Filing
  • 8-K eventBonus Plan ApprovedJun 17, 2026Filing
  • Insider sellInsider Sell $814K · 10b5-1 PlanSchwarzkopf Cynthia · Director · $813.7KJun 12, 2026Filing
  • Insider sellInsider Sell $802K · 10b5-1 PlanJayabalan Harish · EVP, CISO and CRO · $801.6KJun 10, 2026Filing
  • Insider sellInsider Sell $3.0M · 10b5-1 PlanGallagher Thomas P. · Director, Chairman & CEO · $3MJun 4, 2026Filing
  • Insider sellInsider Sell $674K · 10b5-1 PlanBrown Shelly · EVP, Chief Strategy Officer · $673.9KJun 4, 2026Filing
  • Insider sellInsider Sell $2.1M · 10b5-1 PlanSchafer Douglas M. JR · EVP and CIO · $2.1MJun 4, 2026Filing
  • Insider sellInsider Sell $464K · 10b5-1 PlanDeitzel Edward · EVP, CRO, CCO MIAX Exchanges · $463.8KJun 4, 2026Filing

Questions

Frequently asked questions

What is Miami International Holdings, Inc.'s market cap?

Miami International Holdings, Inc. (MIAX) has a market capitalization of $4.5B.

What is MIAX's P/E ratio?

A meaningful P/E ratio is not available for MIAX — the company's latest fiscal-year earnings per share is zero, negative, or not yet cached.

What is MIAX's price-to-book (P/B) ratio?

MIAX trades at 5.14 times book value per share.

Are insiders buying MIAX stock?

SEC Form 4 filings show no open-market insider buys at Miami International Holdings, Inc. in the last 90 days (25 sells).

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Timeline

Every filing, insider trade & earnings on a price-anchored timeline

Filing Analyzer

Search the actual 10-K / 10-Q text with AI research angles

News

Latest press coverage in one feed

Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.