Miami International Holdings, Inc. (MIAX)
- Sector
- Financial Services
- Last price
- $31.98
- As of
Kresmion compiles this page from MIAX's SEC filings, its 13F institutional holders and the market events Kresmion detects, each linked to its source.
MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX): 3 institutional managers tracked by Kresmion reported non-option positions in their 2026Q2 Form 13F filings, and the most recent SEC filing on record for the company is a Form 10-Q filed 2026-08-07.
See the full MIAX dossier
Price with insider and filing markers, who is positioning, fundamentals and peers for MIAX on one page. Preview it with sample data, then open it live with a free account.
Preview the MIAX dossierActive events for MIAX
- highInsider cluster: sales
5 insiders at MIAX sold $6.6M this week
- high13F: large increase
CITADEL ADVISORS LLC added +66% to MIAX (2026Q2)
- high13F: large increase
CITADEL ADVISORS LLC added +284% to MIAX (2026Q2)
- high13F: large reduction
MILLENNIUM MANAGEMENT LLC cut 64% of MIAX (2026Q2)
- high13F: large reduction
D. E. Shaw & Co., Inc. cut 91% of MIAX (2026Q2)
FREE, NO ACCOUNT
Every event on MIAX, as it fires
You are seeing 5 of 9 events recorded on MIAX since 2026-05-26.
The five above landed across 2 days. The other 4 were recorded on 2 other days.
No fixed schedule: it goes out when the data has something in it. Unsubscribe anytime. We never sell your data.
Largest reported share positions in MIAX (2026Q2)
| Manager / security | Market value | % portfolio | QoQ |
|---|---|---|---|
| TWO SIGMA INVESTMENTS, LPCUSIP 59356Q108 · 2026Q2 | $33M | 0.02% | , |
| D. E. Shaw & Co., Inc.CUSIP 59356Q108 · 2026Q2 | $13.2M | 0.01% | , |
| MILLENNIUM MANAGEMENT LLCCUSIP 59356Q108 · 2026Q2 | $7M | 0.00% | , |
Quarterly SEC Form 13F disclosures from the managers Kresmion tracks, not a complete ownership ranking. Non-option holdings only; reported put and call positions are excluded. Different securities are labeled by CUSIP. Values are reporting-period snapshots, not current position values. Filings can arrive up to 45 days after quarter-end.
Recent SEC filings, MIAX
- 10-QSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 10-QSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
MIAX against its peers
MIAX's operating margin of 6.7% ranks in the 18th percentile of 13 Financial Services sub-industry peers, fiscal period ending 2025-12-31.
| Metric | MIAX | Peer median | Percentile | n |
|---|---|---|---|---|
| Revenue FY | 1.4B USD | 954M USD | 63 | 22 |
| Gross margin | 31.6% | n/a | n/a | 3 |
| Operating margin | 6.7% | 15.3% | 18 | 13 |
| Net margin | -5.1% | 12.4% | 2 | 22 |
| Return on equity | -7.9% | 18.3% | 10 | 23 |
| P / E | n/a | 22.4x | n/a | 16 |
Peers (24): NMIH, WT, AAMI, PFSI, SLM, FOUR, NATL, DBRG, BULL, FSK, CNS, SII, GLXY, LAZ, PJT, PAY, DLO, APAM, DAVE, PAYO, FHI, FLYW, EEFT, BLSH. Left out: BFH (no annual filing). Fiscal period ending 2025-12-31. Every figure is one full fiscal year read from one annual filing (MIAX: 10-K), reported in USD. Nothing is trailing twelve months and nothing is converted between currencies. Source: SEC EDGAR XBRL company facts (public domain); prices from Kresmion's daily equity market-data snapshot. Open the full comparison.
Related tickers
Follow MIAX on a live board
Kresmion is a cross-asset market-intelligence terminal. Open a board scoped to MIAX for its filings, 13F changes, insider trades, options positioning, and confluence read in one view, each with its source.