Quantum Portfolio Management LLC's ownership history for IBKR

Quantum Portfolio Management LLC currently holds 7.1K shares with a market value of $457.7K. It started holding IBKR on 2025-09-30. At its peak, it held 11.8K shares on 2025-09-30. Its highest holding value was $809.0K on 2025-09-30. At its lowest, it held 7.1K shares on 2025-12-31, with a value of $457.7K on 2025-12-31.