MARSHALL WACE, LLP is an institutional investment manager that files quarterly 13F reports with the SEC. As of Q2 2026, the fund manages $126.7B in reported equity holdings across 2748 positions. The largest holdings are IVW (23.6%), 4JZA.HM (3.3%), AAPL (2.2%), AMD (1.9%), AMZN (1.8%). The portfolio is concentrated in Other (88.7%), Technology (2.7%), Financial Services (2.4%). Data sourced from SEC EDGAR 13F filings (CIK 1318757).