Jun 11, 2026
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Quantum Computing Technology Competition Kicks into High Gear... Photon, KCS, and Other Anticipated Beneficiary Stocks Fluctuate

As the quantum computing market, considered a next-generation core technology, grows rapidly, interest in related stocks continues in the domestic stock market.

심우일 기자
Staff Reporter
5 min read
양자컴퓨팅 관련주, 기술 경쟁 본격화…포톤·케이씨에스 등 수혜 기대 부각
양자컴퓨터 자료사진. / CBC News

As the quantum computing market, considered a next-generation core technology, grows rapidly, interest in related stocks continues in the domestic stock market. While global big tech companies are expanding their research and development investments, domestic companies related to quantum security and quantum communication are drawing attention amid expectations of benefiting from the trend.

On the morning of the 11th, quantum computing theme stocks showed mixed movements depending on the individual stock.

[Declining Stocks] • Photon: Dropped 3.10% from the previous day to 2,345 won • Xgate, RaonSecure, Dreamsecurity: Showed a weak trend

[Rising Stocks] • KCS: Rose 2.77% • QSI: Rose 2.01% • Woorinet: Rose 4.49% • ALT: Rose 4.96%

The market highly rates the fact that quantum computing technology can process calculations in a short time that would take existing supercomputers years. Because of this, it is evaluated as a future core technology that will be utilized in various industries such as artificial intelligence (AI), new drug development, financial modeling, and cryptanalysis.

In particular, as concerns are raised that existing cryptographic systems could be neutralized if quantum computers are commercialized, competition for the development of quantum cryptographic communication and security technologies is also beginning in earnest. Recently, global technology companies have been focusing on improving quantum processor performance and securing error correction technology, and governments of various countries are also expanding R&D support at the level of national strategic technology.

The industry believes that the quantum computing market is highly likely to enter a full-fledged growth phase within the next few years. However, experts advised, "Since quantum computing is still in its infancy, expectations are often priced into stock prices ahead of actual earnings," adding that "When investing, it is necessary to comprehensively consider technical capabilities, business relevance, and R&D achievements."

[This article was written with the assistance of AI. This article is intended to provide information for reference in making investment decisions and does not recommend buying or selling specific stocks. Losses from stock investments belong to the investor, and investment decisions must be made after sufficient review and under one's own responsibility.]

심우일 기자
Staff Reporter

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