Jusung Engineering (036930) is drawing investors' attention as it shows a sharp decline early in the trading session. As of 9:03 a.m. on the 30th, Jusung Engineering is trading at 105,000 won, down 11,100 won (9.56%) from the previous trading day, showing a weak trend.

As the intraday decline widens, the strong stock price momentum that has continued since April appears to be somewhat slowing. In particular, Jusung Engineering has consistently maintained a stock price above 100,000 won since April 21. Accordingly, market attention is focused on whether the psychological support level of the '100,000 won mark' can be successfully defended today.

As volatility in individual stocks increases like this, the overall investment sentiment in the semiconductor sector is also drawing attention. On the same day, Samsung Electronics announced that it recorded an operating profit of 89.4924 trillion won on a consolidated basis for the second quarter, an increase of more than 1,800% compared to the same period last year.

The market is watching whether Samsung Electronics' strong performance will lead to an improvement in investment sentiment across the semiconductor sector, or if a differentiated market trend among individual stocks will persist amid recent volatility.

[The final decision and responsibility for investing lies with the investor, and as short-term volatility has expanded, a cautious approach is required.]