A finance professor at the University of California, TransWorld Auden study of nearly 7 years after the transaction mode and found that half of the hands of investors will sell a profitable stock.

• 加利福尼亚大学金融教授特兰斯奥登研究了近7年的交易模式后，发现有一半的投资者会将手里赚了钱的股票卖掉。