T. Rowe Price Investment Management, Inc.
Position in MIAX — Miami International Holdings, Inc.
CIK 1897612
BALTIMORE, MD
Position in MIAX
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$187,025,165
+$25,677,713 QoQ
Shares Held
5,032,970
+21.4% QoQ
Ownership
5.07%
of shares outstanding
% of Portfolio
0.12%
of 13F equity value
Holder Rank
#3
of 204 holders
Holding Since
Sep 2025
4 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in MIAX Over Time
Shares Held
Position Value (USD)
Position in Capital Markets
Financial Services · as of Jun 30, 2026T. Rowe Price Investment Management, Inc. holds $1,595,163,618 across 13 Capital Markets names. MIAX ranks #5 (11.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TW |
Tradeweb Markets Inc.
|
3,301,026 | $328,980,251 | |
| 2 | HOOD |
Robinhood Markets, Inc.
|
3,207,165 | $321,614,506 | |
| 3 | SNEX |
StoneX Group Inc.
|
3,510,393 | $277,321,047 | |
| 4 | HUT |
Hut 8 Corp.
|
1,972,657 | $227,733,387 | |
| 5 | MIAX |
Miami International Holdings, Inc.
This page
|
5,032,970 | $187,025,165 | |
| 6 | RIOT |
Riot Platforms, Inc.
|
5,620,458 | $153,888,140 | |
| 7 | ETOR |
eToro Group Ltd.
|
856,860 | $33,820,264 | |
| 8 | MRX |
Marex Group Ltd
|
385,479 | $23,494,945 |
All Filings in MIAX
Export CSV
5 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $187,025,165 | 5,032,970 | Shares | Sole | 2026-08-14 | |
| 2026-06-30 | $187,025,165 | 5,032,970 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $161,347,452 | 4,145,618 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $22,634,998 | 510,027 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $97,856,600 | 2,430,616 | Shares | Sole | 2025-11-14 | |
| No filing history on record for this holder in this stock. | ||||||