TotalMarketCap

Market cap

$3.447 B

$34.45 -1.49%

Close of 6 Nov 2026

As of 6 Nov 2026, Miami International (MIAX) has a market capitalization of $3.45B. Market cap measures the value of outstanding equity at market prices; company totals combine applicable share classes. Prices and market caps come from Nasdaq, with financial fundamentals from SEC filings. See sources and calculation details.

Revenue

$1.36B

#1345 by revenue

Earnings

-$70.0M

Loss-making

Shares outstanding

100,056,866

Latest filing cover page

P/E ratio

—

Cap ÷ net income

Investment Bankers/Brokers/Service, ranked by market cap

All 69 →
  1. #26Marex GroupMRX$4.82B
  2. #27Piper Sandler CompaniesPIPR$4.75B
  3. #28Miami InternationalMIAX$3.45B
  4. #29BlackRock Enhanced Large Cap Core FundCII$3.40B
  5. #30WisdomTreeWT$2.89B

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Where these numbers come from

Share counts and financials for Miami International are taken from its own SEC filings via EDGAR: public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Read the methodology.