MIAMI INTL HLDGS INC

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MIAX·59356Q108·US·equity·Financial Services - Capital Markets-Activist

MIAX (MIAMI INTL HLDGS INC) is held by 107 institutional investors as of Q1 2026. Largest holders: HORIZON KINETICS ASSET MANAGEMENT LLC ($134.3M), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($128.3M), BlackRock, Inc. ($86.9M). Net institutional sentiment: Bullish.

107

Holders

Avg rating(9 Elite)

$1.4B

Total Value

76% (118)

Fund Consensus

85 buying - 27 selling

Smart Money Verdict

View all

54Mixed MomentumSplit Signals

Institutional (13F)68

Insider (Form 4)29

Activist (13D/13G)51

Congressional (STOCK Act)60

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See how MIAX's score breaks down across 4 SEC sources

Holder Quality

9

★★★★★

Elite

32

★★★★

Strong

34

★★★

Solid

34

★★

Below

8

★

Weak

Held by 107 funds

9 elite

Who's Trading

ActivistHORIZON KINETICS ASSET MANAGEMENT LLC

13F: Mar 31, 2026Insider & Congress: Updated regularly

Positions (117)History

AllNewIncreasedHeldDecreasedExited

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
HORIZON KINETICS ASSET MANAGEMENT LLC	Increased	3.5M(+89.7%)	$134.3M	1.5%	+33.74%	75
SUSQUEHANNA INTERNATIONAL GROUP, LLP	Increased	3.3M(+0.3%)	$128.3M	0.0%	+37.73%	30
BlackRock, Inc.	Increased	2.2M(+27.3%)	$86.9M	0.0%	+29.57%	37
CITADEL ADVISORS LLC	Increased	1.6M(+159.5%)	$62.6M	0.0%	+35.16%	48
Invesco Ltd.	Increased	1.6M(+23.9%)	$61.7M	0.0%	+28.94%	36
AIAlyeska Investment Group, L.P.	Increased	1.4M(+12.6%)	$56.3M	0.2%	+37.04%	40
AGADAGE CAPITAL PARTNERS GP, L.L.C.	Increased	1.2M(+41.5%)	$48.5M	0.1%	+33.32%	39
AMERICAN CENTURY COMPANIES INC	Decreased	1.2M(-15.7%)	$47.5M	0.0%	+25.32%	0
JPMORGAN CHASE & CO	Increased	1.2M(+52.0%)	$46.4M	0.0%	+36.26%	41
MORGAN STANLEY	Increased	1.1M(+419.3%)	$44.6M	0.0%	+34.37%	47
Allspring Global Investments Holdings, LLC	Increased	1.1M(+19.3%)	$43.8M	0.1%	+30.34%	34
BANK OF AMERICA CORP /DE/	Increased	900,882(+196.5%)	$35.1M	0.0%	+33.02%	47
TWO SIGMA INVESTMENTS, LP	Increased	893,718(+536.9%)	$34.8M	0.0%	+32.65%	47
GEODE CAPITAL MANAGEMENT, LLC	Increased	779,782(+52.1%)	$30.4M	0.0%	+29.31%	40
STATE STREET CORP	Increased	712,329(+23.6%)	$27.7M	0.0%	+25.93%	35
BLAIR WILLIAM & CO/IL	Increased	665,781(+1.7%)	$25.9M	0.1%	+30.79%	29
BNP PARIBAS FINANCIAL MARKETS	Increased	572,456(+199.7%)	$22.3M	0.0%	+29.84%	46
FRANKLIN RESOURCES INC	Increased	568,174(+33.0%)	$22.1M	0.0%	+36.69%	37
SEI INVESTMENTS CO	Increased	526,363(+54.7%)	$20.5M	0.0%	+29.25%	40
MILLENNIUM MANAGEMENT LLC	Increased	518,701(+82.2%)	$20.2M	0.0%	+32.02%	44