Public record / Tickers / MIAX

MIAX — MIAMI INTERNATIONAL HOLDINGS, INC.†

Both disclosure regimes on one name: who in Congress filed about MIAX, which institutions reported holding it. Each section keeps its own clock — congressional trades on the 45-day PTR clock, 13F holdings as quarter-end snapshots.

Congress txns
1
all PTR rows naming MIAX
Members · 12m
1
1 buys · 0 sells · by trade date
Latest PTR
04-07
filed 2026-04-07
13F holders
191
top-191 slice · 2026-03-31
Congress = transactions in statutory ranges, 45-day lag · Institutions = quarter-end positions, 45-day lagas of 2026-10-01 13:54 UTCno price data — a disclosure record, not a chart

Gilbert Ray Cisneros, Jr. · $15.0K–$50.0K

BUY · traded 2026-03-20 → filed 2026-04-07. Ranked over every MIAX row by the provable lower bound, never a point estimate.

1 member · 1 buys / 0 sells

Counts of disclosures by trade date, not dollars — ranges cannot be netted across members. Flow ranges per member are in the table below.

Every row filed inside the 45-day window

Late disclosure is stated on the row, never editorialised. Both dates and the receipt stay on every row.

Congress · disclosure timeline

TRADE DATES · 24M · ▲ BUY ▼ SELL · HEIGHT = LOG LOWER BOUND

1 dated disclosures in the window, placed by trade date; magnitudes are the disclosed lower bounds.

Trade date, not filing date — the lag lives in the table below. 1 rows placed.

PLANNED institutional holder flow by quarter

Congressional disclosures

ALL PTR ROWS NAMING MIAX · SORTED FILED ↓ · STATUTORY RANGES · FILED ≤45D LATEfull congressional view ↗
Latest congressional filings mentioning MIAX
FiledMemberSide · OwnerTraded · LagAmountRange · FlagsSrc
2026-04-07Gilbert Ray Cisneros, Jr. D–CA-31BUYTraded 03-20 +18d$15K–$50K
Each row shows the trade date and the filing date; the gap between them is the disclosure lag.all 1 ↗

Members active in MIAX

12M · NET LOWER BOUND · COMMITTEES AS OF TRADE DATE · SNAPSHOT 2026-10-01
Members disclosing MIAX in the trailing 12 months
MemberRowsNet disclosed flow for this ticker: purchases minus sales, computed as a net range on the disclosed amounts. A lower bound is provable, never a point.Number of committees the member sat on as of their latest trade date in the window, from the cc0-legislators roster snapshot. Context, never an allegation; jurisdiction overlap needs the sector join.
Gilbert Ray Cisneros, Jr. D–CA-311$15.0K to $50.0K2

1 members in the window · counts of disclosures, not dollars.

Congress ↔ notable managers · MIAX

who in Congress disclosed purchases or sales beside which notable managers added or trimmed

Congress · last 90 days

Buyers
0 — —
Sellers
0 — —

filed 2026-07-03 → 2026-10-01 · totals are statutory ranges

Notable managers · quarter ended 2026-03-31

Adding
0 — $0 held
Trimming
1 Soros Fund Management $5.2M held

NEW + ADD vs TRIM + EXIT, by shares · $ = reported value now, not the change · MIAMI INTL HLDGS INC

Merged timeline of congressional filings and notable-manager moves on MIAX
DateWhoChangeSize
2026-05-15Soros Fund Management 13FTRIM−21,960 sh

1 newest rows · every row dates by its filing date: a disclosure's, or the 13F's for the quarter · a 13F row is a quarter-end snapshot, not a trade

Institutional holders · 13F · Quarter ended 2026-03-31 · longs only

Top institutional holders of MIAX for quarter 2026-03-31
#FilerValueSecuritiesFlagsSrc
1HORIZON KINETICS ASSET MANAGEMENT LLC$134M1
2SUSQUEHANNA INTERNATIONAL GROUP, LLP$128M1
3BlackRock, Inc.$86.9M1
4CITADEL ADVISORS LLC$62.6M1
5Invesco Ltd.$61.7M1
6Alyeska Investment Group, L.P.$56.3M1
7VANGUARD CAPITAL MANAGEMENT LLC$55.1M1
8VANGUARD PORTFOLIO MANAGEMENT LLC$53.5M1
9ADAGE CAPITAL PARTNERS GP, L.L.C.$48.5M1
10AMERICAN CENTURY COMPANIES INC$47.5M1
11MORGAN STANLEY$44.6M1
12Allspring Global Investments Holdings, LLC$43.8M1
13North Reef Capital Management LP$39.5M1
14Ghisallo Capital Management LLC$38.9M1
15BANK OF AMERICA CORP /DE/$35.1M1
16TWO SIGMA INVESTMENTS, LP$34.8M1
17STATE STREET CORP$27.7M1
18BLAIR WILLIAM & CO/IL$25.9M1
19Caldwell Investment Management Ltd.$24.9M1
20FRANKLIN RESOURCES INC$22.1M1
21SEVEN GRAND MANAGERS, LLC$21.4M1
22SEI INVESTMENTS CO$20.5M1
23MILLENNIUM MANAGEMENT LLC$20.2M1
24Clearstead Advisors, LLC$19.6M1
25WELLINGTON MANAGEMENT GROUP LLP$17.3M1
26UBS Group AG$16.5M1
27VICTORY CAPITAL MANAGEMENT INC$15.2M1
28MASSACHUSETTS FINANCIAL SERVICES CO /MA/$13.3M1
29D. E. Shaw & Co., Inc.$12.5M1
30TOCQUEVILLE ASSET MANAGEMENT L.P.$12.1M1
31ROYCE & ASSOCIATES LP$12.0M1
32Burkehill Global Management, LP$11.3M1
33Delta Global Management LP$11.2M1
34Intrinsic Edge Capital Management LLC$10.7M1
35Penn Capital Management Company, LLC$10.7M1
36BARCLAYS PLC$10.7M1
37RENAISSANCE TECHNOLOGIES LLC$10.6M1
38Woodline Partners LP$10.2M1
39HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND$9.3M1
40CHARLES SCHWAB INVESTMENT MANAGEMENT INC$9.2M1
41NORTHERN TRUST CORP$9.1M1
42Nuveen, LLC$9.0M1
43Trexquant Investment LP$8.4M1
44VANGUARD FIDUCIARY TRUST CO$7.9M1
45FEDERATED HERMES, INC.$7.8M1
46OCCUDO QUANTITATIVE STRATEGIES LP$7.1M1
47MANUFACTURERS LIFE INSURANCE COMPANY, THE$6.4M1
48AXIOM INVESTORS LLC /DE$6.4M1
49Schonfeld Strategic Advisors LLC$6.1M1
50ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$5.8M1
51SOROS FUND MANAGEMENT LLC$5.2M1
52Portolan Capital Management, LLC$5.0M1
53Prana Capital Management, LP$4.8M1
54Aquatic Capital Management LLC$4.7M1
55RAYMOND JAMES FINANCIAL INC$4.6M1
56Polar Capital Holdings Plc$4.6M1
57TRUIST FINANCIAL CORP$4.6M1
58KING LUTHER CAPITAL MANAGEMENT CORP$4.6M1
59TD ASSET MANAGEMENT INC$4.1M1
60CITIGROUP INC$4.1M1
61Caprock Group, LLC$3.9M1
62MBL Wealth, LLC$3.4M1
63VOLORIDGE INVESTMENT MANAGEMENT, LLC$3.3M1
64Qube Research & Technologies Ltd$3.2M1
65MAD RIVER INVESTORS$3.2M1
66WEXFORD CAPITAL LP$3.1M1
67Coastal Bridge Advisors, LLC$3.0M1
68SPIREPOINT PRIVATE CLIENT, LLC$2.7M1
69WELLS FARGO & COMPANY/MN$2.4M1
70one8zero8, LLC$2.3M1
71Quantinno Capital Management LP$2.2M1
72G2 Investment Partners Management LLC$2.0M1
73Engineers Gate Manager LP$2.0M1
74Corient Private Wealth LLC$2.0M1
75CREDIT AGRICOLE S A$2.0M1
76Covalis Capital LLP$1.9M1
77C2P Capital Advisory Group, LLC d.b.a. Prosperity Capital Advisors$1.8M1
78OSAIC HOLDINGS, INC.$1.7M1
79Squarepoint Ops LLC$1.6M1
80Swiss Life Asset Management Ltd$1.6M1
81LPL Financial LLC$1.6M1
82STATE OF WISCONSIN INVESTMENT BOARD$1.5M1
83NewEdge Advisors, LLC$1.5M1
84Walleye Capital LLC$1.5M1
85Moors & Cabot, Inc.$1.5M1
86Atlas Wealth Partners, LLC$1.5M1
87Pekin Hardy Strauss, Inc.$1.4M1
88Swiss National Bank$1.3M1
89ALLIANCEBERNSTEIN L.P.$1.2M1
90Hudson Bay Capital Management LP$1.2M1
91XTX Topco Ltd$1.1M1
92HighTower Advisors, LLC$1.1M1
93Concentric Capital Strategies, LP$1.0M1
94SIMPLEX TRADING, LLC$974K1
95Voleon Capital Management LP$936K1
96SIG BROKERAGE, LP$903K1
97DEUTSCHE BANK AG\$795K1
98Jain Global LLC$667K1
99Grandeur Peak Global Advisors, LLC$614K1
100Zurcher Kantonalbank (Zurich Cantonalbank)$595K1
101SALT Holding Corp.$591K1
102IMC-Chicago, LLC$567K1
103Vinva Investment Management Ltd$536K1
104Vanguard Global Advisers, LLC$517K1
105UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC$510K1
106Verdad Advisers, LP$478K1
107Legal & General Group Plc$453K1
108MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.$449K1
109Blackstone Inc.$448K1
110Independent Solutions Wealth Management, LLC$430K1
111BOOTHBAY FUND MANAGEMENT, LLC$424K1
112VANGUARD ASSET MANAGEMENT, Ltd$417K1
113HMV Wealth Advisors, LLC$416K1
114Man Group plc$415K1
115Focus Partners Advisor Solutions, LLC$402K1
116ROYAL BANK OF CANADA$401K1
117PROMETHIUM ADVISORS,LLC$352K1
118Round Rock Advisors LLC$350K1
119Janus Henderson Group Ltd.$334K1
120AQR CAPITAL MANAGEMENT LLC$330K1
121INTECH INVESTMENT MANAGEMENT LLC$323K1
122J.W. COLE ADVISORS, INC.$323K1
123Stratos Wealth Advisors, LLC$253K1
124Concurrent Investment Advisors, LLC$243K1
125STIFEL FINANCIAL CORP$240K1
126Stratos Wealth Partners, LTD.$226K1
127Brevan Howard Capital Management LP$215K1
128State of Wyoming$177K1
129Vanguard Investments Australia, Ltd.$173K1
130Battery Global Advisors, LLC$122K1
131Ameritas Investment Partners, Inc.$74.4K1
132FIFTH THIRD BANCORP$61.3K1
133Caitong International Asset Management Co., Ltd$53.7K1
134HFM Investment Advisors, LLC$50.6K1
135Tower Research Capital LLC (TRC)$40.8K1
136LORD, ABBETT & CO. LLC$33.5K1
137NATIONAL BANK OF CANADA /FI/$28.1K1
138BEACON INVESTMENT ADVISORY SERVICES, INC.$27.2K1
139FMR LLC$25.3K1
140CWM, LLC$7.2K1
141Pinpoint Asset Management (Singapore) Pte. Ltd.$6.8K1
142Parkside Financial Bank & Trust$5.1K1
143WPG Advisers, LLC$3.2K1
144Quarry LP$1.5K1
145HRT FINANCIAL LP$1.4K1
146MCF Advisors LLC$1.3K1
147Allworth Financial LP$5841
148NATIXIS ADVISORS, LLC$5221
149FINANCIAL CONSULATE, INC$5061
150MAI Capital Management$3901
151CENTRAL TRUST Co$2731
152NOMURA ASSET MANAGEMENT CO LTD$01
153Avion Wealth$01
154VANGUARD GROUP INC— value not disclosed1
155COMERICA BANK— value not disclosed1
156VIRGINIA RETIREMENT SYSTEMS ET Al— value not disclosed1
157MALTESE CAPITAL MANAGEMENT LLC— value not disclosed1
158FIRST TRUST ADVISORS LP— value not disclosed1
159Calamos Advisors LLC— value not disclosed1
160Texas Yale Capital Corp.— value not disclosed1
161Hound Partners, LLC— value not disclosed1
162GSA CAPITAL PARTNERS LLP— value not disclosed1
163NORGES BANK— value not disclosed1
164Marquette Asset Management, LLC— value not disclosed1
165Harvey Partners, LLC— value not disclosed1
166TWO SIGMA ADVISERS, LP— value not disclosed1
167ELEMENT CAPITAL MANAGEMENT LLC— value not disclosed1
168Arizona State Retirement System— value not disclosed1
169LMR Partners LLP— value not disclosed1
170Penserra Capital Management LLC— value not disclosed1
171JANE STREET GROUP, LLC— value not disclosed1
172ARMISTICE CAPITAL, LLC— value not disclosed1
173Monashee Investment Management LLC— value not disclosed1
174Maven Securities LTD— value not disclosed1
175Quadrature Capital Ltd— value not disclosed1
176Symmetry Investments LP— value not disclosed1
177Centiva Capital, LP— value not disclosed1
178DV Trading LLC— value not disclosed1
179Larson Financial Group LLC— value not disclosed1
180ExodusPoint Capital Management, LP— value not disclosed1
181Global Retirement Partners, LLC— value not disclosed1
182BELLEVUE ASSET MANAGEMENT, LLC— value not disclosed1
183Game Plan Financial Advisors, LLC— value not disclosed1
184Sandia Investment Management LP— value not disclosed1
185Bell Investment Advisors, Inc— value not disclosed1
186Panoramic Capital, LLC— value not disclosed1
187Lykos Global Management, LP— value not disclosed1
188Smartleaf Asset Management LLC— value not disclosed1
189Unisphere Establishment— value not disclosed1
190VARCOV Co.— value not disclosed1
191Capelight Capital Asset Management LP— value not disclosed1
Truncated by Public Filings. Every one of the 153 13F filers reporting this share class for the quarter is listed. methodology §13F ↗
§ derived by Public Filings from this build's reviewed ticker-mapping holders list for this share class; that list carries each holder's share count, share change and filed date, which this table does not show, but no document links — the EDGAR link opens the filer's 13F list
n/c Newest filing in this build: 2026-07-31. Per-row filing dates are on each receipt.

Crowding — not available in this build. No holder rows for the selected period, so no percentile can be ranked.

Do the two regimes agree?

TRAILING 12M · CONGRESS vs FILERS NET
Congress net (rows)1 buy / 0 sell
Congress net ($ bound)$15.0K to $50.0K
Filers net (actions)not in build
Filers net ($ Q/Q)not in build

The filer side needs per-issuer quarter-over-quarter actions, which the published aggregate does not carry for this issuer. Convergence and divergence are stated only when both sides are computed.

Signals on MIAX

RETAINED WINDOW · ACTIVE HITS

Zero hits on MIAX in the retained window — a computed answer over every rule, not missing coverage.

Every rule, with its definition →

Planned modules for MIAX · financials and macro

Financials — as filed PLANNED

MIAX's as-reported XBRL fundamentals will appear here when the financials module passes its gates. Until then: MIAX on EDGAR ↗

Macro context PLANNED

Rates, inflation, and positioning series land here with the macro module — vintage-aware, never nowcast.

† issuer name from the SEC's present-day ticker file (company_tickers.json) — a present-day mapping, not the name as of each filing