Domestic optical communication and optical semiconductor-related stocks fell across the board during the trading session on the 7th, entering a consolidation phase. While medium- to long-term growth expectations driven by expanded investment in AI data centers remain valid, profit-taking sell-offs following recent short-term surges have somewhat dampened investor sentiment across the sector.

■ Key Stocks Fall One After Another

The stock price movements of major stocks during the morning session were as follows.

• Daehan Optical Communication: 10,800 won, down 530 won (4.68%) from the previous trading day
• Optoelectronics: 5,810 won, down 160 won (2.68%)
• Bitgwajeonsa: 1,825 won, down 109 won (5.64%)
• Bit Saem Electronics: 7,460 won, down 240 won (3.12%)
• Seoul Semiconductor: 9,690 won, down 260 won (2.61%)

In addition, Korea Advanced Materials (-5.19%), Seoul Biosys (-5.12%), TMC (-5.30%), Lycom (-2.16%), Fiberpro (-2.19%), and Jaram Technology (-1.75%) also showed weakness. Meanwhile, Woorinet maintained a slight uptick at 7,290 won, up 30 won (0.41%).

■ Core AI Infrastructure… Medium- to Long-Term Outlook Still Valid

Optical communication and optical semiconductors are considered the core infrastructure of AI data centers. As large-scale GPU clusters require the ultra-fast transmission of massive amounts of data, the importance of optical-based technologies such as optical transceivers, optical cables, and silicon photonics is growing increasingly significant. Related companies have garnered attention as key beneficiaries alongside the expansion of AI investments by global big tech firms.

However, in the recent market, concerns over valuations for AI-related stocks broadly and the psychology of profit-taking following short-term sharp gains have expanded, which is interpreted as putting selling pressure on optical communication and optical semiconductor stocks as well. While there has been no significant change in the sector's long-term growth potential, short-term volatility is expanding due to shifts in investor sentiment and supply-demand dynamics.

■ Earnings and New Orders as Key Variables for Future Stock Prices

The securities industry evaluates that as the expansion of AI data centers and the increase in demand for high-speed networks are likely to continue, the medium- to long-term growth outlook for the optical communication and optical semiconductor industries remains valid. However, individual companies' earnings improvements, new order bookings, and client investment plans are expected to act as key variables that will determine future stock price movements.

[This article was written with the assistance of AI. AI was utilized in the writing process, and the final content was reviewed based on factual accuracy. This article does not constitute investment advice for any specific stock, and responsibility for investment decisions lies solely with the investor.]