MIAX

MIAMI INTERNATIONAL HOLDINGS
USCUSIP 59356Q108
Institutional Owners
65
+27 QoQ
13F Value Held
$629.1M
Insider Net · 180d
$0
0↑ 0↓
Recent Filings
0
Smart-money sentimentBullish
BearishBullish
13F funds (latest Q)49 adding · 13 trimming
Insider net (180d)+$0
Price history not yet available for MIAX.

Top institutional holders

65 13F filers
#FundPosition valueSharesLast moveAs of
1HORIZON KINETICS ASSET MANAGEMENT LLC
$134.3M
3.45MAddedQ1 2026
2Alyeska Investment Group, L.P.
$56.3M
1.45MAddedQ1 2026
3VANGUARD CAPITAL MANAGEMENT LLC
$55.1M
1.41MNewQ1 2026
4VANGUARD PORTFOLIO MANAGEMENT LLC
$53.5M
1.37MNewQ1 2026
5Allspring Global Investments Holdings, LLC
$42.8M
1.09MAddedQ1 2026
6North Reef Capital Management LP
$39.5M
1.01MReducedQ1 2026
7Ghisallo Capital Management LLC
$38.9M
1.00MAddedQ1 2026
8STATE STREET CORP
$27.7M
712.3KAddedQ1 2026
9BLAIR WILLIAM & CO/IL
$25.9M
665.8KAddedQ1 2026
10CITADEL ADVISORS LLC
$22.1M
566.7KAddedQ1 2026
11Clearstead Advisors, LLC
$19.6M
503.7KNewQ1 2026
12TOCQUEVILLE ASSET MANAGEMENT L.P.
$12.1M
312.1KAddedQ1 2026
13Woodline Partners LP
$10.2M
261.1KNewQ1 2026
14TUDOR INVESTMENT CORP ET AL
$10.1M
259.8KAddedQ1 2026
15Trexquant Investment LP
$8.4M
215.5KNewQ1 2026
16VANGUARD FIDUCIARY TRUST CO
$7.9M
202.6KNewQ1 2026
17OCCUDO QUANTITATIVE STRATEGIES LP
$7.1M
151.7KNewQ1 2026
18Schonfeld Strategic Advisors LLC
$6.1M
157.7KAddedQ1 2026
19SOROS FUND MANAGEMENT LLC
$5.2M
132.6KReducedQ1 2026
20Portolan Capital Management, LLC
$5.0M
128.8KNewQ1 2026
21Prana Capital Management, LP
$4.8M
123.4KAddedQ1 2026
22Aquatic Capital Management LLC
$4.7M
119.5KNewQ1 2026
23Polar Capital Holdings Plc
$4.6M
118.7KReducedQ1 2026
24Caprock Group, LLC
$3.9M
100.6KAddedQ1 2026
25VOLORIDGE INVESTMENT MANAGEMENT, LLC
$3.3M
85.6KNewQ1 2026

Fund activity — latest quarter

Opened (NEW)
33
funds
Added
16
funds
Reduced
5
funds
Exited
8
funds

Insider activity (Form 4)

No Form 4 insider transactions on file yet.

Institutional ownership over time

61 funds+58 since Q3 2025
03161Q3 2025Q4 2025Q1 2026
funds holding aggregate valuelatest $612M

Funds that own MIAX also own

CompanyCo-held byCombined value
Microsoft Corp - USMSFT59 funds$132.8B
Nvidia Corp - USNVDA57 funds$202.6B
Eli Lilly & Co - USLLY57 funds$38.0B
Amazon.Com Inc - USAMZN56 funds$97.3B
Broadcom Inc - USAVGO56 funds$69.6B
Meta Platforms Inc - USMETA56 funds$59.5B
Tesla Inc - USTSLA56 funds$49.2B
Apple Inc - USAAPL55 funds$174.3B
Alphabet, Inc.GOOGL55 funds$77.9B
Visa Inc - USV55 funds$28.9B
Mastercard Inc - USMA55 funds$22.1B
Netflix Inc - USNFLX55 funds$19.4B

Ranked by how many of MIAX's institutional holders also hold each name — a cross-fund conviction signal. Via the MCP server (ticker.co_held).

Recent filings

0 shown

No filings captured for this ticker in the live stream yet.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for MIAX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.