In past weeks, China's stock market has had more ups and downs than a rollercoaster. Here is a diary of an investor's life during this turbulent time. The man graduated from Guanghua School of Management at Peking University with a major in financial management. In the end of 2010, his fund grew by 3 times since he started to invest in China's A-share market in mid 2009. Because of his good performance, his friends called him Caishen, a nickname which means the wealth god according to Chinese myths. Although he lost a lot of money in 2011, the man's investment funds doubled again in 2013. [Photo/CFP]