Mercury will be designated as an investment caution stock for a single day on November 10, as unfilled buy orders at the upper price limit became concentrated in a small number of accounts.

The Korea Exchange's Market Surveillance Committee announced on the 9th that the top 10 accounts accounted for 94.91% of Mercury's unfilled buy orders at the upper limit price.

That day, Mercury closed at 4,400 won, with a trading volume of 2,343,000 shares and an upper-limit buy order balance of 134,000 shares.

Two conditions must be met for a stock to be designated as an investment caution stock due to upper-limit order balances. First, the upper-limit buy order balance at the close of the regular market must be at least 100,000 shares. At the same time, the combined balance of the top 10 accounts with the most unfilled buy orders must account for 90% or more of the total upper-limit buy order balance. Mercury exceeded both thresholds, meeting the designation criteria.

Excluding the 9th, Mercury had not been designated as an investment caution stock for the same reason during the past 5 and 15 trading days. This designation period is one day, on the 10th.

Market alerts operate on three levels: investment caution, investment warning, and investment risk. Trading can be suspended at the investment warning and investment risk levels, but the measure taken against Mercury this time is an investment caution designation based on its upper-limit order balance.

[This article was partially written with the assistance of AI. The information provided is for reference only, and this publication bears no legal or financial responsibility for the use of such information.]