Oyak Yatirim Ortakligi AS is an investment trust, which activities include portfolio management of precious metals and securities traded in national and international stock markets. The company was founded by Ali Caner Oner, Ayse Meltem Agci, Iskender Ergun Senturk, and Mustafa Tayfun Oral on November 3, 2006 and is headquartered in Istanbul, Turkey.