Jack Ma, the founder and chairman of China's e-commerce giant Alibaba, laughs at the New York Stock Exchange when his company marked its initial public offering (IPO) under the ticker "BABA" on Sept 19, 2014. The IPO, one of the largest ever, would give Alibaba a market valuation of $167.6 billion, surpassing American corporate icons from Walt Disney Co to Boeing Co. [Photo/IC]