Marshall Wace adds to positive returns in two key funds in September, says source

British hedge fund Marshall Wace posted positive returns in two of its funds in September, a source close to the matter told Reuters on Thursday.

Co-founded by British financier Paul Marshall, the firm which manages over $70 billion in assets, returned 1.32% for September and was up 8.04% for the year so far in its Eureka Fund, said the source.

The hedge fund's Market Neutral Tops fund returned 0.45% in September and is up 13.66% for the year, the source added.

Systematic stock trading hedge funds, such as Marshall Wace, are up over 13% for 2025 so far, said Goldman Sachs in a recent note to clients.