In this photo released by the New York Stock Exchange Euronext, Dr. Henry Yu Lin, Chief Executive Officer of Chinese Internet security software maker Netqin tours the floor of the New York Stock ... more 
In this photo released by the New York Stock Exchange Euronext, Dr. Henry Yu Lin, Chief Executive Officer of Chinese Internet security software maker Netqin tours the floor of the New York Stock Exchange Thursday, May 05, 2011, in New York. The Beijing based company had its Initial Public Offering at the Exchange on Thursday. less 
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Associated Press | Photo By NYSE, Valerie Caviness
Thu, May 5, 2011 3:02 PM EDT