Short bets against a Chinese casino operator and an emerging markets manager were the big winners for Crispin Odey last month, with turmoil in the country's equity markets high on the agenda for renowned hedge fund managers on both sides of the Atlantic.

Odey's positions in Chinese developer Sands China and Ashmore Group were the "top winners" in June, according to the latest letter to investors in the roughly $2.7 billion Odey European Fund, seen by Financial News.