Back to BlackRock, Inc. BlackRock, Inc.

MIAXMIAX
4 quarters

Position history for BlackRock, Inc.BlackRock, Inc.'s holdings in Miami International Holdings, Inc.

BlackRock, Inc. holds 5.1M shares of MIAX (Miami International Holdings, Inc.), worth $188.5M as of 2026-Q2. The position was increased (+127.2% shares). MIAX represents 0.0% of BlackRock, Inc.'s portfolio.

Current Value

$188.5M

Current Shares

5.1M

Total Value Change

+$160M

Total Shares Change

+4.4M

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q2
Latest
Increased
5.1M
+127.2%
$188.5M0.0%$37.16
49
2026-Q1
Increased
2.2M
+27.3%
$86.9M0.0%$42.04
37
2025-Q4
Increased
1.8M
+147.8%
$77.8M0.0%$45.68
48
2025-Q3
New
707,771
-
$28.5M0.0%$40.77
40

Other major holders of MIAX: HORIZON KINETICS ASSET MANAGEMENT LLC, SUSQUEHANNA INTERNATIONAL GROUP, LLP, VANGUARD PORTFOLIO MANAGEMENT LLC

Analytics tracking helps us improve the product. Essential functions stay on either way. How analytics data is used