Alibaba, Weibo set up U.S.-Asia IPO horse race By: MarketWatch March 18, 2014 at 08:39 AM EDT Two more Asia-based companies are opting to go public on U.S. exchanges. Here’s why the U.S. is paying really, really close attention. Read More >> Related Stocks: 58.com Inc Facebook Intercontinental Exchange Nasdaq OMX Group Twitter, Inc. Zynga Inc Cl A