On the 29th, the KOSPI closed at 5,663.24, down 360.42 points (-5.98%) from the previous trading day, while the KOSDAQ finished at 662.68, down 43.17 points (-6.12%). Both markets posted sharp declines for the second consecutive session, with investor sentiment significantly contracting as intraday sell-side circuit breakers were triggered in succession.

A review of the day's most actively traded stocks reveals a mixed trend, with gainers and decliners scattered across sectors regardless of industry. This is interpreted as a broad reflection of shrinking overall market liquidity and investor sentiment rather than company- or industry-specific issues.

Daewon Cable, which ranked among the top by trading volume, plunged 18.75% to close at 11,050 won. The electrical and cable sector had been garnering steady market attention driven by expectations of rising power consumption from artificial intelligence (AI) data centers, North American power grid replacement, and growing demand for extra-high-voltage cables and transformers. However, according to industry sources, in a phase where both the KOSPI and KOSDAQ are declining sharply, shifts in overall market investor sentiment exert a greater impact on stock prices than individual industry growth expectations. In fact, considering that Daewon Cable Preferred posted a relatively smaller decline (-3.81%) compared to common shares, this suggests that the day's drop was likely driven more by individual supply and demand factors than by pure sector-specific catalysts. CP System, a specialist in industrial cable chains, also fell 5.95% to 3,950 won.

Meanwhile, among large-cap stocks with high trading volumes, Samsung Electronics (-5.23%) and SK Hynix (-9.61%) were analyzed as the result of profit-taking sell orders concentrated across semiconductor large-caps broadly. Even amid the broader market downturn, iRobotics (+12.71%) and Danal (+6.14%) closed higher, although the specific catalysts behind these two stocks' gains could not be verified during the writing of this article. In addition, DaeHan Fiber Optic (-11.83%) remains on an extended two-day decline (-23.51% compared to the 27th's closing price), an issue already covered in a previous article.

[This article was written with the assistance of AI. This article is investment reference information based on publicly available market data and does not recommend the purchase or sale of any specific stock. Investment decisions and the resulting responsibility lie solely with the investor.]