Yahoo is to sell its stake in trading site Alibaba.com for up to 150 million dollars, hoping to cash in on a 400-per-cent rise in the stock price of China's biggest trading web site, the company said Monday, according to dpa. Yahoo bought a 40-per-cent stake in Alibaba's parent company for 1 billion dollars plus its Chinese operations, which were valued at 700 million dollars at the time of the deal in 2005. In 2007, Yahoo was one of eight major investors that subscribed to the 1.7-billion-dollar initial public offering of Alibaba.com, the biggest first-time share sale by an Internet company since Google Inc in 2004. In a statement, Yahoo said it would keep its stake in parent company the Alibaba Group, which gives it a 28-per-cent indirect stake in Alibaba.com.