Crispin Odey, one of Europe’s best-known hedge fund managers, ran up a 10% loss in one of his hedge funds last month, in what is fast turning into a bad year for some big-name managers.

The European fund run by Odey, founding partner of London-based Odey Asset Management which manages $5.9bn in assets, experienced a 9.8% fall in its net asset value during July, according to an investor document seen by The Wall Street Journal. The fund is down 12% in the year through July.