As the KOSPI plunged 18% over two days and then rebounded sharply on the 5th, extending a roller-coaster market, users have faced difficulties as some retirement pension accounts on the Korea Investment & Securities Co. mobile trading system (MTS) experienced errors in checking balance quantities and transactions.
According to the financial investment industry that day, after the market opened, transactions could not be made on some retirement pension accounts on the Korea Investment & Securities Co. MTS, and errors occurred in which the quantity of holdings in the account and the rate of return were displayed differently.
A tipster said, "The quantity of holdings is being overstated in the account, and selling is impossible," and added, "I tried to sell some in the morning when the market was good, but I keep missing the timing."
A Korea Investment & Securities Co. official said, "As an unprecedented market situation unfolded that day and trading volume surged, a balance inquiry error occurred in some retirement pension accounts," and added, "We are currently working to normalize service."