Data from public SEC 13F & STOCK Act filings, delayed up to ~45 days, partial holdings only — for research, not investment advice.
IBKR
INTERACTIVE BROKERS GRO-CL AData as of 2026 Q1 (03-31) · 13F snapshot
Summary
INTERACTIVE BROKERS GRO-CL A (IBKR) is held by 9 tracked hedge-fund managers, a combined reported value of ~$382.38M; the largest are Andreas Halvorsen, Ken Griffin, Ken Griffin. This quarter: 2 new, 2 added, 4 trimmed. 11 members of Congress have disclosed STOCK Act trades. Data as of 2026 Q1, from public SEC 13F filings, delayed up to ~45 days.
Attention · HighThis quarter · Mixed
Gurus holding9
Congress trades11
Price$90.81vs quarter-end+35.40%
Sectors0
This quarter's moves
Top holderAndreas HalvorsenNew2
Added2
Trimmed / sold4
Value $59.00M— of portfolio879,7002026 Q1
George SorosTrim
Value $43.28M0.8% of portfolio645,3442026 Q1
Value $19.82M— of portfolio295,5002026 Q1
Value $14.26M— of portfolio212,6002026 Q1
Value $6.11M— of portfolio91,1002026 Q1
Value $5.92M— of portfolio88,2002026 Q1
Value $3.93M— of portfolio58,6002026 Q1
| Investor | Value | % of portfolio | Action |
|---|---|---|---|
| Ken GriffinCALL | $59.00M | — | — |
| George Soros | $43.28M | 0.8% | Trim |
| Ken GriffinPUT | $19.82M | — | — |
| Steven CohenCALL | $14.26M | — | — |
| Izzy EnglanderPUT | $6.11M | — | — |
| Steven CohenPUT | $5.92M | — | — |
| Izzy EnglanderCALL | $3.93M | — | — |