Which hedge funds own IBKR? INTERACTIVE BROKERS GROUP IN, Q2 2026 13F holders
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20 of the hedge funds tracked by WhaleCreep disclosed a position in IBKR (INTERACTIVE BROKERS GROUP IN) in their Q2 2026 13F filings, worth $1.5bn in total. The largest holder by portfolio weight is Bronte Capital at 8.7% of its book. 1 manager opened a new position this quarter: Lone Pine Capital.
20tracked managers holding
1opened this quarter
0exited this quarter
Which hedge funds hold IBKR? Current holders by portfolio weight
| Manager | As of | Weight of book | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|
| Bronte Capital | Q2 2026 | 8.7% | $76.9m | 883,526 | -31% | reduced |
| Cantillon Capital Management | Q2 2026 | 6.8% | $45.1m | 517,833 | -95% | reduced |
| Egerton Capital | Q2 2026 | 3.5% | $359.4m | 4,129,416 | -34% | reduced |
| Viking Global Investors | Q2 2026 | 1.2% | $420.5m | 4,830,748 | 246% | added |
| Lone Pine Capital | Q2 2026 | 0.3% | $50.3m | 577,666 | – | new |
| Tudor Investment | Q2 2026 | 0.3% | $64.6m | 741,915 | 120% | added |
| Soros Fund Management | Q2 2026 | 0.2% | $13.2m | 151,470 | -77% | reduced |
| Point72 Asset Management LP | Q2 2026 | 0.1% | $75.5m | 867,084 | 1306% | added |
| D. E. Shaw & Co | Q2 2026 | 0.1% | $139.5m | 1,602,534 | 226% | added |
| Moore Capital Management | Q2 2026 | 0.1% | $3.1m | 35,803 | 23% | added |
| Holocene Advisors | Q2 2026 | 0.1% | $24.2m | 278,592 | 1393% | added |
| Citadel Advisors | Q2 2026 | 0.1% | $94.2m | 1,081,743 | 47% | added |
| Woodline Partners | Q2 2026 | 0.1% | $16.5m | 189,616 | -47% | reduced |
| Millennium Management | Q2 2026 | 0.0% | $67.2m | 772,059 | 32% | added |
| Marshall Wace | Q2 2026 | 0.0% | $36.0m | 414,093 | -53% | reduced |
| Bridgewater Associates | Q2 2026 | 0.0% | $3.7m | 42,076 | -42% | reduced |
| Brevan Howard Capital Management | Q2 2026 | 0.0% | $845.4k | 9,713 | -91% | reduced |
| Renaissance Technologies LLC | Q2 2026 | 0.0% | $5.6m | 63,900 | -86% | reduced |
| WCM Investment Management | Q2 2026 | 0.0% | $1.6m | 9,340 | 4% | added |
| Ancora Advisors | Q2 2026 | 0.0% | $10.4k | 120 | -80% | reduced |
Held in a manager's last filing on record
These managers have not filed for the latest quarter; their last disclosure is dated.
| Manager | Last filing | Weight |
|---|---|---|
| Bares Capital Management | Q3 2025 | 13.1% |
| Boston Omaha | Q4 2024 | 0.0% |
| Caxton Associates | Q4 2024 | 0.0% |
| Arlington Value Capital | Q1 2020 | 6.4% |
How has hedge fund ownership of IBKR changed?
| Quarter | Managers holding | Combined value |
|---|---|---|
| Q2 2026 | 20 | $1.5bn |
| Q1 2026 | 19 | $1.9bn |
| Q4 2025 | 11 | $1.8bn |
| Q3 2025 | 11 | $2.1bn |
| Q2 2025 | 8 | $1.9bn |
| Q1 2025 | 9 | $1.4bn |
| Q4 2024 | 10 | $1.2bn |
| Q3 2024 | 10 | $1.2bn |
| Q2 2024 | 9 | $1.2bn |
| Q1 2024 | 9 | $1.3bn |
| Q4 2023 | 7 | $734.5m |
| Q3 2023 | 8 | $773.0m |
| Q2 2023 | 8 | $698.4m |
| Q1 2023 | 8 | $689.8m |
| Q4 2022 | 10 | $735.6m |
| Q3 2022 | 8 | $536.9m |
Counts every tracked manager that disclosed IBKR in that quarter's filing, including managers that have since stopped filing.