The Children's Investment Fund, the London hedge fund, has taken an 11.4% stake in Xiamen International, the Hong Kong port operator. The investment is the fund's fourth in Hong Kong in three months.

The fund spent HK$136.3m (€14.8m) buying 97.8m shares in Xiamen, according to Hong Kong Stock Exchange filings. Xiamen made its initial public offering in Hong Kong this month.