What is 402340 KS stock?

Written by Editorial Team | Last Updated: August 2026

The stock ticker symbol 402340 KS represents SK Square Co., Ltd., a prominent South Korean investment holding company traded on the Korea Exchange. Formed through a corporate split from SK Telecom, SK Square specializes in managing and investing in technology, semiconductor, and digital platform enterprises. Its prominent portfolio assets include major stakes in companies like SK Hynix, 11st, and various artificial intelligence, e-commerce, and digital media ventures. Institutional investors closely monitor SK Square's stock performance as a key proxy for South Korea's high-tech startup incubation and advanced semiconductor investment landscape.

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SK Square was established in November 2021 as a result of a corporate split from SK Telecom, which divided the telecommunications giant into an operating telecom business and a separately listed investment holding company.

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SK Square is publicly traded on the Korea Exchange under the official stock ticker symbol 402340.

SK Square is a prominent South Korean technology-focused investment holding company headquartered in Seoul.

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SK Square is a South Korean investment holding company that was established following a corporate spin-off from SK Telecom, designed to focus entirely on investment management, semiconductor technology, and digital platform businesses.