Singapore-based Asia Genesis Asset Management is closing its two hedge funds and returning money to investors, according to Bloomberg.

Chua Soon Hock, who founded the firm in 1999, said: “I need some time to recuperate from weak health. In past years, I have been doing 18-hour workdays with very active positions’ management to keep downside volatility of funds very low. I cannot do that with my current health conditions.”

The firm will return all money invested in the long-established Japan Macro Fund and the newer Asia Genesis Equity Fund to investors by mid-September, the news service said.