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MIAX · Miami International Holdings, Inc. · Holdings

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$30.71 +0.01 (+0.03%) At close · Oct 9
Market Cap
$3.05B
Shares
99.23M
Volume · Oct 9 1.39M Avg daily vol (3M) 1.51M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Institutional holdings are being reconciled with SEC filings. Holder totals and changes may be incomplete until reconciliation finishes.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 215
Total Value: $2,712,139,163
Total Shares: 72,992,511
Showing 1–100 of 222 holdings by value · page 1 of 3

Institutional Ownership Trend

5 quarters

Holder Concentration

Across 213 13F filers
Top Holder
10.7%
Sep 2025 → Jun 2026 · range 8.2% – 13.5%
of institutional value
Top 5
35.0%
Sep 2025 → Jun 2026 · range 29.8% – 38.4%
of institutional value
Top 10
49.3%
Sep 2025 → Jun 2026 · range 43.7% – 53.7%
of institutional value
HHI
356
Sep 2025 → Jun 2026 · range 298 – 453
Broadly held
Showing 100 of 222
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1438472 CUSIP 59356Q108 13F (30d) 7 filings 7 filers Visit website Investor relations