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Risks to China's New Technology Board

Jul.19 -- Twenty-five companies will be part of the tech board launch in Shanghai, out of the more than 100 hopefuls that applied to go public on the platform. Endorsement from top officials helped generate such enthusiasm that the firms raised a combined $5.4 billion, about 20% more than planned. Demand from retail investors has outstripped supply by an average 1,800 times, even as some analysts voiced concern over lofty valuations.  Selina Wang reports on "Bloomberg Markets: Asia."