China's Tencent Holdings Ltd for the first time hit a market cap of more than $200 billion on Monday, making it more valuable than U.S. tech firms like Amazon.com Inc, IBM Corp and Oracle Corp. The country's biggest social networking and online entertainment firm rose 5.38 percent to close at HK$170.50 in trading in Hong Kong, giving it a market valuation of $206 billion. This is higher than Oracle's $190 billion, Amazon's $178 billion and IBM's $161 billion.