§ FINANCIAL SERVICES
USD · Financial ServicesMIAX
MIAMI INTERNATIONAL HOLDINGS
USDSector · Financial ServicesBeta · 1.16
§ 01 · PRICE
Price action
1D5D1M6MYTD1YMAX
§ 03 · SIGNAL STACK · WHAT THE INPUTS SAY
13F FLOW
145 increased/new, 50 decreased/exited (13F)
AC 13F Analysis
§ 04 · FUNDAMENTALS · THE BOOKS
| P/E | 29.8 | P/B | 4.49 |
| EPS (TTM) | 0.87 |
§ 05 · WHO OWNS IT
Top institutional holders
| Fund | Shares | % port | Δ Q/Q |
|---|---|---|---|
| HORIZON KINETICS ASSET MANAGEMENT LLC | 3.5M | 1.5% | +90% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 3.3M | 0.0% | +0% |
| BlackRock, Inc. | 2.2M | 0.0% | +27% |
| Citadel Advisors | 1.6M | 0.0% | +160% |
| Alyeska Investment Group, L.P. | 1.4M | 0.2% | +13% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.4M | n/a | n/a |
◇ AC INTELLIGENCE
Top institutional owners for MIAX as of the most recent 13F reporting period (Q1 2026 · Period ended Mar 31). Δ Q/Q reflects share-count change vs. the prior filing — positive green means adding, negative red means trimming. Cross-reference with the ownership-mix bars below to see which strategy cohort is driving the flow.
§ 06 · WHO OWNS IT · BY STRATEGY
OTHER43.2% · 0 holders
OTHER33.5% · 135 holders
DEALER / BANK6.9% · 22 holders
QUALITY / COMPOUNDER5.8% · 15 holders
PASSIVE / INDEX5.3% · 7 holders
TACTICAL / MACRO2.8% · 5 holders
SYSTEMATIC / QUANT1.4% · 10 holders
INCOME / DEFENSIVE0.7% · 7 holders
ACTIVIST0.3% · 1 holder
◇ AC INTELLIGENCE
Ownership mix by behavioral cohort. Top bars indicate which style of capital dominates the float — passive indexing, quality compounders, dealer/bank, systematic quant, etc. Big quality-compounder share means concentrated active conviction; heavy passive share means flows are dictated by index rebalances, not fundamentals.
§ 07 · INSIDER ACTIVITY · LAST 180 DAYS
NO INSIDER FILINGS
◇ AC INTELLIGENCE
No Form 4 filings on record for MIAX in the last 180 days.
§ 08 · COVERAGE · OUR RECENT NOTES
No notes mention MIAX yet.