Argo Capital Management, an emerging markets debt manager owned by troubled hedge fund firm Absolute Capital Management, has appointed a fifth member to its investment committee, bringing to 17 the staff on its investment team.

Demetris Efstathiou has joined Argo as a portfolio manager and investment committee member responsible for liquid trading strategies. He was previously at investment bank Morgan Stanley, where he was responsible for trading emerging market debt, foreign exchange and rates. At Argo, Efstathiou reports to Andreas Rialas, chief investment officer.