Who Owns MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX)?Hedge Fund & Institutional Holders

$38.33+0.24 (+0.63%)Financial ServicesNYSE

Institutional Holders

50

as of Q4 2025

Total Institutional Value

$1.4400080762781395e+231T

% of Float Held

4.2491443883439264e+300%

QoQ Change in Holders

+14 / -5

Price History

$30.74$35.80$40.85$45.91$50.96Aug 25Nov 25Mar 26

MIAX — Biggest New Institutional Buyers This Quarter

FundActionShares AddedValue Added
Allspring Global Investments Holdings, LLCNew Position+932K+$40.7M
Caldwell Investment Management Ltd.New Position+739K+$33.7M
LORD, ABBETT & CO. LLCIncreased+360K+$16.0M
MASSACHUSETTS FINANCIAL SERVICES CO /MA/New Position+274K+$12.2M
NORGES BANKNew Position+277K+$12.0M
Penn Capital Management Company, LLCNew Position+252K+$11.2M
AXIOM INVESTORS LLC /DENew Position+243K+$10.8M
ROYCE & ASSOCIATES LPNew Position+181K+$8.1M
RENAISSANCE TECHNOLOGIES LLCNew Position+195K+$8.0M
FEDERATED HERMES, INC.New Position+200K+$8.0M
BNP PARIBAS FINANCIAL MARKETSNew Position+191K+$8.0M
Lykos Global Management, LPNew Position+175K+$7.8M
NEW YORK STATE COMMON RETIREMENT FUNDNew Position+162K+$7.0M
Polar Capital Holdings PlcNew Position+124K+$5.0M
KING LUTHER CAPITAL MANAGEMENT CORPNew Position+104K+$4.0M

MIAX — Institutions Reducing or Closing Positions

FundActionShares SoldValue Sold
CITADEL ADVISORS LLCDecreased-355K-$39.2B
MORGAN STANLEYDecreased-300K-$21.0B
FRANKLIN RESOURCES INCDecreased-5K-$17.4B
Intrinsic Edge Capital Management LLCDecreased-26K-$14.0B
TOCQUEVILLE ASSET MANAGEMENT L.P.Decreased-10K-$9.3B
Schonfeld Strategic Advisors LLCDecreased-118K-$8.8B
ROYAL BANK OF CANADADecreased-198K-$8.1B
Quinn Opportunity Partners LLCDecreased-74K-$6.5B
MALTESE CAPITAL MANAGEMENT LLCDecreased-121K-$6.4B
Jain Global LLCClosed Position-154K-$6.2B
Freestone Grove Partners LPClosed Position-125K-$5.0B
MARSHALL WACE, LLPClosed Position-78K-$3.1B
ExodusPoint Capital Management, LPDecreased-44K-$2.2B
Interval Partners, LPClosed Position-44K-$1.8B
CAISSE DE DEPOT ET PLACEMENT DU QUEBECClosed Position-30K-$1.2B

Top Institutional Holders(Q4 2025)

#FundSharesValue% of PortfolioType
1SUSQUEHANNA INTERNATIONAL GROUP, LLP3,254,606$144.0M0.02%Share
2HORIZON KINETICS ASSET MANAGEMENT LLC1,819,798$80.8M1.09%Share
3VANGUARD GROUP INC1,760,689$78.1M0.00%Share
4AMERICAN CENTURY COMPANIES INC1,448,293$64.0M0.03%Share
5Alyeska Investment Group, L.P.1,286,086$57.0M0.16%Share
6North Reef Capital Management LP1,265,000$56.1M2.26%Share
7Invesco Ltd.1,005,863$44.6M0.01%Share
8Allspring Global Investments Holdings, LLC909,356$39.7M0.06%Share
9ADAGE CAPITAL PARTNERS GP, L.L.C.881,329$39.0M0.06%Share
10BlackRock, Inc.877,255$38.0M0.00%Share
11Caldwell Investment Management Ltd.738,810$33.7M20.74%Share
12BlackRock, Inc.727,150$32.0M0.00%Share
13JPMORGAN CHASE & CO735,671$32.0M0.00%Share
14BLAIR WILLIAM & CO/IL654,845$29.0M0.08%Share
15LORD, ABBETT & CO. LLC643,120$28.0M0.09%Share
16CITADEL ADVISORS LLC619,580$27.0M0.00%Share
17STATE STREET CORP576,385$25.0M0.00%Share
18GOLDMAN SACHS GROUP INC580,665$25.0M0.00%Share
19Ghisallo Capital Management LLC557,500$24.7M1.10%Share
20DRIEHAUS CAPITAL MANAGEMENT LLC532,391$23.6M0.16%Share
21T. Rowe Price Investment Management, Inc.510,027$22.6M0.02%Share
22GEODE CAPITAL MANAGEMENT, LLC439,596$19.0M0.00%Share
23JANE STREET GROUP, LLC440,226$19.0M0.00%Share
24AMERIPRISE FINANCIAL INC446,918$19.0M0.00%Share
25FRANKLIN RESOURCES INC415,040$18.0M0.00%Share
26SEVEN GRAND MANAGERS, LLC400,000$17.8M1.35%Share
27VICTORY CAPITAL MANAGEMENT INC392,122$17.0M0.01%Share
28Intrinsic Edge Capital Management LLC322,519$14.3M2.55%Share
29SEI INVESTMENTS CO330,091$14.0M0.01%Share
30WELLINGTON MANAGEMENT GROUP LLP324,269$14.0M0.00%Share
31Burkehill Global Management, LP290,000$12.9M0.85%Share
32MASSACHUSETTS FINANCIAL SERVICES CO /MA/273,908$12.2M0.00%Share
33NORGES BANK277,200$12.0M0.00%Share
34MILLENNIUM MANAGEMENT LLC284,664$12.0M0.01%Share
35Delta Global Management LP279,029$12.0M0.56%Share
36Penn Capital Management Company, LLC252,125$11.2M0.89%Share
37Woodline Partners LP261,111$11.0M0.04%Share
38AXIOM INVESTORS LLC /DE243,174$10.8M0.09%Share
39HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND234,244$10.0M0.02%Share
40Jump Financial, LLC243,000$10.0M0.12%Share
41WELLINGTON MANAGEMENT GROUP LLP222,101$9.0M0.00%Share
42TOCQUEVILLE ASSET MANAGEMENT L.P.220,775$9.0M0.13%Share
43ROYCE & ASSOCIATES LP181,466$8.1M0.08%Share
44JANE STREET GROUP, LLC197,766$8.0M0.00%Share
45BANK OF AMERICA CORP /DE/195,010$8.0M0.00%Share
46BNP PARIBAS FINANCIAL MARKETS191,020$8.0M0.00%Share
47CHARLES SCHWAB INVESTMENT MANAGEMENT INC187,064$8.0M0.00%Share
48RENAISSANCE TECHNOLOGIES LLC195,099$8.0M0.01%Share
49FEDERATED HERMES, INC.200,000$8.0M0.01%Share
50Lykos Global Management, LP175,000$7.8M5.49%Share

MIAX Institutional Ownership History

QuarterHoldersTotal ValueChange
Q4 2025162$1.5B+58
Q3 2025104$820.9B—

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As of Q4 2025, 50 institutional investors hold MIAX (MIAMI INTERNATIONAL HOLDINGS, INC.). The largest holder is SUSQUEHANNA INTERNATIONAL GROUP, LLP with $144.0M in shares. This quarter, 14 institutions opened new positions and 5 closed their positions.

Frequently Asked Questions

How many hedge funds own MIAX?

As of Q4 2025, 50 institutional investors report holding MIAX (MIAMI INTERNATIONAL HOLDINGS, INC.) in their 13F filings.

Who is the largest institutional holder of MIAX?

The largest institutional holder of MIAX is SUSQUEHANNA INTERNATIONAL GROUP, LLP with $144.0M in shares.

Is institutional ownership of MIAX increasing or decreasing?

This quarter, 14 institutions opened new positions in MIAX and 5 closed their positions.