IBKR · CUSIP 45841N107
INTERACTIVE BROKERS GROUP IN
Reported by 6 of 79 curated managers in Q2 2026, in the holdings snapshot last exported 2026-08-24.
- Managers holding
- 6
- Average portfolio weight
- 9.7%
- Combined reported value
- $1.0B
- Research group
- 79
6 of the 79 superinvestors Shameless Cloning tracks reported INTERACTIVE BROKERS GROUP IN (IBKR) in their Q2 2026 13F filings, worth $1.0B combined, at an average 9.7% of their portfolios. The largest positions by portfolio weight belong to Bryan Lawrence (33.4%), Robert Vinall (12.8%), William Von Mueffling (6.8%).
Reporting managers
This is a historical 13F snapshot, not a live shareholder register. The count covers all matched managers; dashboard rankings use only those with at least 95% coverage. Reported value is measured at filing quarter-end, not at today's price.
| Manager / SEC filer | % of portfolio | Reported value |
|---|---|---|
| Bryan LawrenceOakcliff Capital Partners, LP | 33.4% | $89.7M |
| Robert VinallRV Capital AG | 12.8% | $48.8M |
| William Von MuefflingCantillon Capital Management LLC | 6.8% | $45.1M |
| John ArmitageEgerton Capital (UK) LLP | 3.5% | $359.4M |
| Viking Global InvestorsVIKING GLOBAL INVESTORS LP | 1.2% | $420.5M |
| Stephen MandelLONE PINE CAPITAL LLC | 0.3% | $50.3M |