Jack Ma Yun (Chinese: 马云; pinyin: Mǎ Yún; born 10 September 1964) is a Chinese business magnate, investor and philanthropist. He is the co-founder and former executive chairman of Alibaba Group, a multinational technology conglomerate. In addition, he co-founded Yunfeng Capital, a Chinese private equity firm. Ma is a strong proponent of an open and market-driven economy.