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 2026-09-14 13:21 UTCno price data — a disclosure record, not a chart

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

Purchase · 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
Filed ▾MemberSide · OwnerTraded · LagAmountRange · FlagsSrc
2026-04-07Gilbert Ray Cisneros, Jr. D–CA-31PurchaseTraded 03-20 +18d$15K–$50K
Traded → filed dates on every rowEach 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 2026-09-14
Members disclosing MIAX in the trailing 12 months
MemberRowsNetNet 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.CommitteesNumber 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 2026-06-16 → 2026-09-14 · 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 · Congress rows date by filing, 13F rows by quarter end · 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
#FilerValue ▾SecuritiesFlagsSrc
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$01
155COMERICA BANK$01
156VIRGINIA RETIREMENT SYSTEMS ET Al$01
157MALTESE CAPITAL MANAGEMENT LLC$01
158FIRST TRUST ADVISORS LP$01
159Calamos Advisors LLC$01
160Texas Yale Capital Corp.$01
161Hound Partners, LLC$01
162GSA CAPITAL PARTNERS LLP$01
163NORGES BANK$01
164Marquette Asset Management, LLC$01
165Harvey Partners, LLC$01
166TWO SIGMA ADVISERS, LP$01
167ELEMENT CAPITAL MANAGEMENT LLC$01
168Arizona State Retirement System$01
169LMR Partners LLP$01
170Penserra Capital Management LLC$01
171JANE STREET GROUP, LLC$01
172ARMISTICE CAPITAL, LLC$01
173Monashee Investment Management LLC$01
174Maven Securities LTD$01
175Quadrature Capital Ltd$01
176Symmetry Investments LP$01
177Centiva Capital, LP$01
178DV Trading LLC$01
179Larson Financial Group LLC$01
180ExodusPoint Capital Management, LP$01
181Global Retirement Partners, LLC$01
182BELLEVUE ASSET MANAGEMENT, LLC$01
183Game Plan Financial Advisors, LLC$01
184Sandia Investment Management LP$01
185Bell Investment Advisors, Inc$01
186Panoramic Capital, LLC$01
187Lykos Global Management, LP$01
188Smartleaf Asset Management LLC$01
189Unisphere Establishment$01
190VARCOV Co.$01
191Capelight Capital Asset Management LP$01
Truncated by Public Filings. The published aggregate ranks the top 191 holders per issuer — a build parameter of the Public Filings aggregation, not a census. Rows beyond it exist in individual filings on EDGAR. methodology §13F ↗
§ derived by Public Filings from the published aggregate (agg_issuer_top_holders); per-filer filed dates, share counts and document links are not in the published aggregate — 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