On the 21st, stock prices for secondary battery and all-solid-state battery-related companies showed a clear divergence by individual stock in the market. Buying interest flowed into major battery manufacturers and certain material stocks, while separator and equipment-related stocks weakened, indicating that the overall sector did not move in a single direction.

Large-Cap and Material Stocks Strengthen... Led by Samsung SDI and IL During the session, Samsung SDI expanded its gains and maintained a strong position. LG Energy Solution and SK Innovation also trended upward, but their price momentum was limited compared to Samsung SDI. Lotte Energy Materials and Daejoo Electronic Materials also joined the upward trend. Among all-solid-state battery material stocks, IL's movement was the most prominent. Mico, ISU Specialty Chemical, Cheonbo, Duksan Techopia, and Dongwha Enterprise continued their strong trends, while Lake Materials remained in positive territory but with limited volatility. Samsung Electro-Mechanics also showed a strong upward trend with concentrated trading volume. However, since Samsung Electro-Mechanics is a large electronic components company with a broad business scope, caution is warranted against definitively interpreting the day's stock price increase solely as a result of all-solid-state battery expectations.

Equipment and Separator Stocks Underperform, Direction Mixed Among Stocks Meanwhile, battery production equipment-related stocks relatively underperformed. Cowintech, Wonjun, Nintech, and MOT weakened, while Abaco and SFA Engineering remained in negative territory. However, within equipment stocks, Hanmi Semiconductor and Mirae Company rose, showing mixed trends. SK IE Technology, a separator company, declined. Tepacs and Hannong Chemical also showed weakness, while only Lemon rose, making it difficult to assess that all-solid-state battery material stocks as a whole experienced a collective rally.

Investor Caution: Verify 'Fundamentals' Over Short-Term Themes In the market, related stocks sometimes move together solely on expectations for technology development, but it can take a considerable amount of time for research and development (R&D) to translate into actual mass production and revenue. Investors should bear in mind that a specific company's push into the all-solid-state battery business does not immediately lead to short-term earnings improvement. In particular, considering that both major domestic indices rose on the 21st, bringing favorable winds to the broader market, it is difficult to definitively attribute the rise and fall of individual stocks solely to this trend. Rather than riding short-term thematic trends, investors need to comprehensively verify factors such as ▲actual supply agreements ▲mass production schedules ▲R&D achievements ▲investment scale and financial burden, and assess market signals and indicators.

[This article is reference material for investment decisions and does not recommend the purchase or sale of any specific stock. The responsibility for investment lies with the investor. This article was written with AI assistance.]