Bahrain-based alternative investments manager Investcorp has announced the acquisition of a 30 percent stake in Orka Group, a Turkish menswear retailer, through its Gulf Opportunity Fund. Orka Group’s Damat, Tween and D’S Damat brands are sold in more than 250 stores in 40 countries. The investment is Investcorp’s sixth through its Gulf Opportunity Fund and its third investment in Turkey. Financial terms of the transaction were not disclosed.