Doosan Fuel Cell (336260) plunged on the morning of the 27th, falling to the lower limit during the session. According to the Korea Exchange, as of 11:40 a.m. on this day, Doosan Fuel Cell was trading at 30,000 won, down 12,800 won (29.91%) from the previous trading day. With the stock hitting the lower limit during the session, sell orders were concentrated. The direct cause of the plunge was the weak second-quarter earnings announced on the 24th. Doosan Fuel Cell had disclosed that its consolidated revenue for the second quarter fell 65.5% year-on-year, while its operating loss expanded to 50.9 billion won. The deteriorating performance is interpreted as having significantly dampened investor sentiment. The broader market mood also weakened somewhat. The KOSPI, which had shown an upward trend early in the session, reversed to a decline and was at 6,662.20 as of 11:40 a.m., down 28.42 points (0.42%) from the previous trading day. Meanwhile, the KOSDAQ maintained its upward trend, showing a divergence between the two markets. Investors are reacting more sensitively to individual stock earnings and changes in supply and demand. In particular, as volatility expands with the intraday index direction changing rapidly, some analysts suggest that short-term trading requires monitoring both market trends and supply and demand shifts. Market attention is focused on whether Doosan Fuel Cell can narrow its losses after hitting the lower limit and whether buying interest will flow in, as well as the direction of the KOSPI in the afternoon session. [This article is not intended to solicit investment. The content provided is for reference only, and the final decision and responsibility for investments lie with the investor.]