Jun 5, 2026
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Optical Communication and Optical Semiconductor Stocks Face Simultaneous Correction... Amid Expectations for Jensen Huang's Visit to Korea, 'Mid-to-Long-Term Seeds' Remain Valid

Recently strong optical communication and optical semiconductor-related stocks faced a simultaneous correction on the 5th. While profit-taking sell-offs poured

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  • Recently strong optical communication and optical semiconductor-related stocks faced a simultaneous correction on the 5th. While profit-taking sell-offs poured
Optical Communication and Optical Semiconductor Stocks Face Simultaneous Correction... Amid Expectations for Jensen Huang's Visit to Korea, 'Mid-to-Long-Term Seeds' Remain Valid

Recently strong optical communication and optical semiconductor-related stocks faced a simultaneous correction on the 5th. While profit-taking sell-offs poured in due to expectations for investments in artificial intelligence (AI) data centers and next-generation networks, the market is paying attention to the potential impact of NVIDIA CEO Jensen Huang's visit to Korea on the optical communication industry.

During the trading session, Daehan Optical Communication, a leading optical communication stock, recorded 18,580 won, down 8.47% from the previous day. Although the trading volume exceeded 2.56 million shares, investor sentiment appeared somewhat contracted. Opto-Electronics also traded at 8,690 won, down 10.23%, widening its decline.

In addition, overall optical material-related stocks could not avoid weakness, including Bitgwaa Electronics (-9.20%, 3,800 won), Bitsaem Electronics (-6.58%, 10,650 won), and Korea Advanced Materials (-7.34%). Optical semiconductor and AI semiconductor supply chain-related stocks also experienced downward pressure. Seoul Semiconductor fell 3.93% to 13,450 won, while RF Materials and RFHIC dropped 7.22% and 7.81%, respectively. Hanmi Semiconductor, a semiconductor equipment stock, also underwent a correction, falling 6.41% to 284,500 won.

However, not all stocks experienced weakness. Lycom, an optical communication component-related stock, enjoyed an upward trend, soaring 18.94% to record 5,840 won. Its trading volume surpassed 3.97 million shares, attracting strong interest from investors.

The market atmosphere interprets this correction as a process to alleviate short-term overheating. As the expansion of the AI industry rapidly increases the demand for building interconnection networks between data centers, it is forecasted that the demand for optical communication equipment and optical semiconductors to build high-bandwidth network infrastructure will also steadily expand.

In particular, CEO Jensen Huang's visit to Korea is highlighting to the market the possibility of expanding cooperation with Samsung Electronics, SK Hynix, and domestic component and material companies. As competition in AI accelerators intensifies, the importance of optical interconnects and optical communication technology to increase data transmission speeds is becoming greater than ever. With the amount of data used by a single AI server surging, the introduction of optical communication-based networks is deemed essential compared to existing electrical signal-based connections.

Accordingly, evaluations indicate that expectations for the mid-to-long-term growth of related companies such as Opto-Electronics, Daehan Optical Communication, Bitgwaa Electronics, and RFHIC are still alive.

A securities industry official analyzed, "Optical communication and optical semiconductors are indispensable sectors in the process of expanding AI infrastructure," adding, "While short-term volatility may increase, there is a continuous need to pay attention to the overarching trend of expanding global AI investments."

[This article was written with the assistance of AI. The information provided in this article is not intended to solicit investment. Investors are responsible for any losses incurred from stock investments, and it is advised to thoroughly review relevant disclosures, corporate performance, and market conditions before making investment decisions.]