INTERACTIVE BROKERS GROUP IN (IBKR) — Hedge Fund Ownership Q1 2026
IBKR
- INTERACTIVE BROKERS GROUP IN (IBKR) is held by 5 of 82 tracked hedge funds, with Oakcliff Capital Partners (31%) and RV Capital (13%) holding the largest stakes, indicating limited hedge fund interest relative to peers.
- The biggest increases in IBKR holdings came from RV Capital (+1%), highlighting conviction.
- The biggest decreases in IBKR holdings came from Cantillon Capital Management (-12%) and Egerton Capital (-10%), suggesting profit-taking or de-risking.
- Overall, hedge funds decreased exposure to INTERACTIVE BROKERS GROUP IN (IBKR) by -10% vs the prior quarter and +245% vs prior year.
| # | Fund | % of Portfolio † | Shares † | Shares vs Prior Quarter † | Shares vs Prior Year † | Aggregate Value † | Reported Price * | Option |
|---|---|---|---|---|---|---|---|---|
| 1 |
Oakcliff Capital Partners Bryan Lawrence
|
30.50% | 1.0M | — | +300.00% | $69.1M | $67.07 | — |
| 2 |
RV Capital
|
13.36% | 758K | +0.72% | +256.70% | $51.1M | $67.44 | — |
| 3 |
Cantillon Capital Management William von Mueffling
|
5.01% | 11.2M | -11.87% | +241.42% | $754.3M | $67.07 | — |
| 4 |
Egerton Capital John Armitage
|
4.67% | 6.3M | -9.57% | +242.16% | $420.9M | $67.07 | — |
| 5 |
Viking Global Investors Andreas Halvorsen
|
0.26% | 1.4M | NEW | — | $93.5M | $67.07 | — |
| 5 | Total | — | 20.7M | -10.12% | +244.94% | $1.39B | — | — |
* Reported price is not an actual purchase or sale price. It is the price as of the last portfolio date.
† Portfolio value, share counts, and period-over-period changes exclude options positions (PUT/CALL), which are shown in the Option column for reference only.
† Portfolio value, share counts, and period-over-period changes exclude options positions (PUT/CALL), which are shown in the Option column for reference only.