SEOUL -- A South Korean retail investor bought 20 shares of SK IE Technology at the company's initial public offering price of 105,000 won per share in late April, then sold half of them on the first trading day to score an 85.7% windfall.

Experts say South Korean small investors need to accept that IPO stock prices do not always go up. © EPA/Yonhap/Jiji
Quick gains entice cash-rich small investors, but experts say hopes too high