Nearly 10 years ago, Yahoo made a big bet that really got Silicon Valley talking.

It paid a whopping $1 billion for 40 percent of a little-known Chinese e-commerce company. As it turned out, that Hangzhou, China-based Internet retailer was later behind the biggest initial public offering ever. Of course, the company Yahoo was smart enough to take a stake in was Alibaba.com, the primary company of Alibaba Group.