MIAX

Miami International Holdings

Latest period2026 - Q1Total superinvestors202

The latest quarter's data is still being updated as more institutional investors submit their 13F reports, so the current information might be incomplete.

Top 10 Superinvestors by Shares Owned

This chart shows the top 10 superinvestors based on the number of shares they owned in 2025-Q4 and 2026-Q1. According to the most recent SEC 13F filing, 202 superinvestors own shares of Miami International Holdings (MIAX), although recent data may remain incomplete due to pending filings.

Quarter-over-Quarter Change (%)

The most recent quarter may show incomplete data because not all institutional investors have filed their 13F reports yet.

This chart highlights the quarter-over-quarter change (%) in the number of superinvestors holding Miami International Holdings (MIAX), the total shares they held, and the total reported dollar value. It gives a clear view of whether there is ongoing momentum. The dotted lines at the top and bottom adjust longer bars to keep smaller data points visible for better comparison.

Superinvestors' Activity (%) Over the Last 4 Quarters

This chart shows superinvestors' activity with Miami International Holdings (MIAX) over the last four quarters, highlighting the percentage of investors who added, increased, decreased, held, or exited their positions, revealing shifts in sentiment over time.

Superinvestors' Past Actions

This chart displays superinvestors' past actions with Miami International Holdings (MIAX) over the last 10 years (40 quarters), helping to visualize the collective momentum and investment trends over time.

Superinvestors ownership

Superinvestor	Portfolio %	Reported Value	Recent Activity
Ellen York@T. Rowe Price Investment Management, Inc. Recent Activity Increased 17.25%	0.12%	$161.348M 4.146M shares@ 38.93 avg price	Increased 17.25%
Brian Sopinsky@Susquehanna International Group, Llp Recent Activity Increased 5.91%	0.02%	$140.721M 3.616M shares@ 38.92 avg price	Increased 5.91%
Jay Kesslen@Horizon Kinetics Asset Management Llc Recent Activity Increased 89.67%	1.46%	$134.334M 3.452M shares@ 38.92 avg price	Increased 89.67%
Spencer Fleming@Blackrock, Inc. Recent Activity Increased 27.33%	0.01%	$86.896M 2.233M shares@ 38.93 avg price	Increased 27.33%
Seth Levy@Citadel Advisors Llc Recent Activity Increased 145.05%	0.02%	$65.91M 1.693M shares@ 38.92 avg price	Increased 145.05%
Robert R. Leveille@Invesco Ltd. Recent Activity Increased 23.93%	0.01%	$61.688M 1.585M shares@ 38.93 avg price	Increased 23.93%
Brent Cunningham@Alyeska Investment Group, L.p. Recent Activity Increased 12.55%	0.16%	$56.335M 1.447M shares@ 38.93 avg price	Increased 12.55%
Christine M. Buchanan@Vanguard Capital Management Llc Recent Activity New Position	0.01%	$55.071M 1.415M shares@ 38.93 avg price	New Position
Christine M. Buchanan@Vanguard Portfolio Management Llc Recent Activity New Position	0.01%	$53.513M 1.375M shares@ 38.92 avg price	New Position
Phillip Gross@Adage Capital Partners Gp, L.l.c. Recent Activity Increased 41.5%	0.08%	$48.533M 1.247M shares@ 38.92 avg price	Increased 41.5%

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