INTERACTIVE BROKERS GROUP IN COM CL A is a security (CUSIP 45841N957) tracked across SEC portfolio filings. 5 institutional managers reported $65.0M on Form 13F as of 2026-06-30.
| Manager | Location | Value | Shares |
|---|---|---|---|
| IMC-Chicago, LLC | CHICAGO, IL | $46.9M | — |
| SIMPLEX TRADING, LLC | CHICAGO, IL | $12.8M | — |
| GROUP ONE TRADING, L.P. | CHICAGO, IL | $5.3M | — |
| HRT FINANCIAL LP | NEW YORK, NY | $5K | 70,000 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | — |