Investment funds in South Korea saw their net asset value decrease by more than 5 trillion won (US$4.7 billion) in March from a month ago as investors scurried to withdraw from bond funds and other short-term funds, data showed Thursday. According to the Korea Financial Investment Association (KOFIA), net asset value of stocks, bonds and real estate-related funds reached a combined 337 trillion won at the end of March, down 5.4 trillion won from the end of February.