Quantum Portfolio Management LLC
Position in IBKR — Interactive Brokers Group, Inc.
CIK 2003672
New York, NY
Position in IBKR
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$608,496
+$149,536 QoQ
Shares Held
6,991
+2.2% QoQ
Ownership
0.002%
of shares outstanding
% of Portfolio
0.31%
of 13F equity value
Holder Rank
#672
of 1,105 holders
Holding Since
Sep 2025
4 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in IBKR Over Time
Shares Held
Position Value (USD)
Position in Capital Markets
Financial Services · as of Jun 30, 2026Quantum Portfolio Management LLC holds $2,220,036 across 7 Capital Markets names. IBKR ranks #1 (27.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | IBKR |
Interactive Brokers Group, Inc.
This page
|
6,991 | $608,496 | |
| 2 | HLI |
Houlihan Lokey, Inc.
|
3,776 | $506,474 | |
| 3 | EVR |
Evercore Inc.
|
1,313 | $448,310 | |
| 4 | GS |
Goldman Sachs Group Inc
|
385 | $389,377 | |
| 5 | MS |
Morgan Stanley
|
921 | $192,525 | |
| 6 | SCHW |
Schwab Charles Corp
|
667 | $61,544 | |
| 7 | BMNR |
Bitmine Immersion Technologies, Inc.
|
1,000 | $13,310 |
All Filings in IBKR
Export CSV
4 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $608,496 | 6,991 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $458,960 | 6,843 | Shares | Sole | 2026-05-01 | |
| 2025-12-31 | $457,694 | 7,117 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $808,999 | 11,757 | Shares | Sole | 2025-10-29 | |
| No filing history on record for this holder in this stock. | ||||||