On the 18th, while optical communication and optical semiconductor-related stocks showed an overall weak trend during trading, Daehan Optical Communication and Woorinet exhibited relatively strong share price movements, drawing investors' attention.

Daehan Optical Communication and Woorinet Stand Out with Rising Trends During the day's session, Daehan Optical Communication traded at 18,460 won, up 1.10% from the previous trading day. It showed strength by surging to as high as 19,170 won at one point, with trading volume also exceeding 13 million shares. Woorinet also traded at 10,750 won, rising 4.47% and recording a notable gain among optical communication-related stocks. Its intraday high jumped to 12,750 won.

Optical Communication and Optical Semiconductor Component Stocks Decline Amid Profit-Taking Meanwhile, many stocks failed to avoid a downward trend, pushed back by profit-taking sell-offs following recent surges. Seoul Semiconductor, an optical semiconductor company, traded at 12,710 won, down 2.75%, and RFHIC also recorded 74,200 won, down 4.87%. In addition, declines widened for Seoul Biosys (-5.87%), Korea Advanced Materials (-7.92%), and Lycom (-7.79%).

Optical communication component and material companies also performed poorly. Bitgwajeon Electronics (-1.32%), Bitsam Electronics (-2.41%), TMC (-2.69%), Jaram Technology (-5.02%), and FiberPro (-2.19%) all showed downward trends simultaneously.

AI Infrastructure Expectations Persist... Supply and Demand Differentiation Deepens by Stock The market analyzes that while expectations continue regarding the expansion of investments in optical communications, data centers, and artificial intelligence (AI) infrastructure, profit-taking movements following short-term surges are simultaneously appearing. In particular, as supply and demand differentiation among stocks deepens, a phenomenon has emerged where buying pressure is concentrated in certain stocks such as Daehan Optical Communication and Woorinet.

Going forward, attention remains focused on the potential benefits from the expansion of global AI data center investments and the establishment of next-generation optical communication networks, with investors closely watching the earnings and order trends of related stocks.

[※ This article was written with AI assistance. Investment decisions are the responsibility of the investor, and the content included in this article may change depending on market conditions.]