Marshall Wace, the $76.9bn London-based hedge fund manager co-founded by veteran investor Paul Marshall, delivered mixed performance across key strategies in July, according to a report by Reuters citing an unnamed person familiar with the matter.

The firm’s flagship Eureka Fund, which employs a long-short equity strategy with a fundamental and systematic tilt, gained +1.6% for the month, bringing its year-to-date return to +6.1% as of July-end.

Meanwhile, the Market Neutral Tops Fund, which leverages the firm’s proprietary alpha-capture system that aggregates ideas from global sell-side analysts, posted a modest decline of -0.22% in July. Despite the slip, the strategy remains one of Marshall Wace’s top performers this year, with a +10.99% YTD return.

Marshall Wace’s performance reflects broader trends within the systematic equity trading space, which has seen strong inflows and solid returns in 2025. According to a recent note from Goldman Sachs, systematic stock-picking hedge funds are up approximately +10% year-to-date, outpacing many discretionary equity peers amid persistent market dispersion.

Marshall Wace declined to comment on fund performance.