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Tech stocks surge as China’s Star Exchange launches

China's new Nasdaq-style stock market had a spectacular debut. The 25 tech stocks listed on the Star Exchange in Shanghai today gained 140% on average by the time that market closed. It's part of China's bid to attract tech superstars and convince local powerhouses like Alibaba and Tencent to return from stock markets in New York and Hong Kong.  This is China's third attempt in the past decade to create a rival to the Nasdaq. Yahoo Finance's Alexis Christoforous and Brian Sozzi discuss.