Interactive Brokers
IBKR
747 hedge funds and large institutions have $15.7B invested in Interactive Brokers in 2025 Q1 according to their latest regulatory filings, with 136 funds opening new positions, 271 increasing their positions, 259 reducing their positions, and 89 closing their positions.
53% more first-time investments, than exits
New positions opened: 136 | Existing positions closed: 89
27% more call options, than puts
Call options by funds: $391M | Put options by funds: $306M
5% more funds holding
Funds holding: 710 → 747 (+37)
1.28% more ownership
Funds ownership: 85.95% → 87.22% (+1.3%)
5% more repeat investments, than reductions
Existing positions increased: 271 | Existing positions reduced: 259
5% less capital invested
Capital invested by funds: $16.6B → $15.7B (-$807M)
27% less funds holding in top 10
Funds holding in top 10: 30 → 22 (-8)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
American Century Companies
Kansas City,
Missouri
|
+$266M |
| 2 |
Marshall Wace
London,
United Kingdom
|
+$135M |
| 3 |
State Street
Boston,
Massachusetts
|
+$82.5M |
| 4 |
Two Sigma Advisers
New York
|
+$75.8M |
| 5 |
KBC Group
Brussels,
Belgium
|
+$74.4M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
OAG
Orbis Allan Gray
Hamilton,
Bermuda
|
-$355M |
| 2 |
JP Morgan Chase
New York
|
-$177M |
| 3 |
Kayne Anderson Rudnick Investment Management
Los Angeles,
California
|
-$142M |
| 4 |
Wellington Management Group
Boston,
Massachusetts
|
-$101M |
| 5 |
FFM
Fullerton Fund Management
Singapore
|
-$69.1M |
IBKR Hedge Fund Activity: Q1 2025 in Review
747 of the 7,472 institutional investors tracked by Wall St. Rank reported a position in Interactive Brokers (IBKR) for Q1 2025, worth a combined $15.7B — down 4.9% from $16.6B a quarter earlier.
Buyers outnumbered sellers: 136 funds opened new IBKR positions and 89 closed out — a net gain of 47 holders — while 271 added to existing stakes and 259 trimmed.
The largest buyer was American Century Companies, adding an estimated $266M. The largest seller was Orbis Allan Gray, cutting an estimated $355M.
- 747 institutional investors held Interactive Brokers (IBKR) as of Q1 2025, up from 710 in Q4 2024.
- Funds reported $15.7B of Interactive Brokers stock for Q1 2025, down 4.9% quarter-over-quarter.
- 136 funds opened new Interactive Brokers positions in Q1 2025 and 89 closed out, a net change of +47 holders.
- The largest Interactive Brokers buyer in Q1 2025 was American Century Companies, an estimated $266M added.
- The largest Interactive Brokers seller in Q1 2025 was Orbis Allan Gray, an estimated $355M sold.
Based on aggregated 13F filings for Q1 2025.