SK Hynix Dethrones Samsung: A Historic Shift in South Korea’s Corporate Powerhouse
Seoul, Monday, 22 June 2026.
For the first time since 2000, Samsung loses its crown as South Korea’s most valuable company to SK Hynix, now worth $1.36 trillion. The AI-driven chip boom propelled SK Hynix’s shares up 340% this year, outpacing Samsung’s 200% gain. This milestone signals a seismic shift in global tech leadership, with SK Hynix dominating the high-bandwidth memory market critical for AI advancements.
A Historic Market Cap Milestone
On Monday, 22 June 2026, SK Hynix Inc. (KRX: 000660) achieved a historic milestone by surpassing Samsung Electronics Co. Ltd. (KRX: 005930) to become South Korea’s most valuable listed company. SK Hynix’s market capitalization reached 2,080.37 trillion won (approximately $1.362 trillion), while Samsung Electronics’ market value stood at 2,066.66 trillion won after trading closed [2][5]. This marks the first time since 2000 that Samsung has relinquished its top position on the Korea Composite Stock Price Index (KOSPI) [2][3]. The shift occurred as SK Hynix’s shares surged 5.61% on the day, while Samsung’s shares declined by 0.14% [2].
The AI Boom Fuels SK Hynix’s Rise
The dramatic reversal in market leadership is largely attributed to the global artificial intelligence (AI) boom, which has driven unprecedented demand for high-bandwidth memory (HBM) chips. SK Hynix, a dominant supplier of HBM chips used in AI systems by major tech companies such as Nvidia Corp. (NASDAQ: NVDA) and Alphabet Inc.’s Google (NASDAQ: GOOGL), has emerged as a primary beneficiary of this trend [2][3]. The company’s shares have soared by more than 340% year-to-date, significantly outperforming Samsung Electronics’ 197.7% gain over the same period [2][3]. SK Hynix now holds over 60% of the global HBM market, with its entire 2026 production capacity already sold out due to overwhelming demand [3].
From Near-Bankruptcy to Market Champion
The rise of SK Hynix is particularly remarkable given its tumultuous history. In 2002, the company was on the brink of collapse, burdened by debt accumulated during an aggressive expansion phase. A proposed acquisition by U.S.-based Micron Technology Inc. (NASDAQ: MU) fell through after SK Hynix’s board rejected the deal [3]. By 2003, the company’s stock price had plummeted to just 135 won [3]. Even as recently as 2023, SK Hynix reported an annual operating loss of 7.73 trillion won due to a severe downturn in the memory market [3]. However, the tide turned in 2024 when the AI-driven demand for memory chips surged, propelling SK Hynix to a record operating profit of 23.5 trillion won [3]. This financial resurgence underscores the company’s strategic pivot toward high-margin HBM chips, which are critical for AI applications.
Strategic Investments to Sustain Growth
To capitalize on the AI-driven demand, SK Hynix has embarked on an aggressive expansion strategy. The company placed an $8 billion order with ASML Holding N.V. (NASDAQ: ASML) for extreme ultraviolet (EUV) lithography machines, which are essential for producing advanced semiconductor chips [3]. Additionally, SK Hynix is investing $12.9 billion in a new packaging plant in South Korea to bolster its production capacity [3]. These investments are aimed at securing SK Hynix’s leadership in the HBM market and meeting the soaring demand from AI chip manufacturers. Analysts suggest that SK Hynix’s focused business model—centered on memory chips—has allowed it to outperform Samsung Electronics, which maintains a more diversified portfolio spanning smartphones, consumer electronics, and displays [2].
Samsung’s Response and Market Dynamics
While SK Hynix celebrates its newfound status, Samsung Electronics has downplayed the significance of the market capitalization shift. The company noted that when preferred shares are included in the calculation, its total market value remains higher at approximately 2,252 trillion won [3]. Nonetheless, the narrowing gap between the two companies has prompted market observers to reassess investor sentiment. Analysts attribute the divergence in stock performance to investors’ growing preference for semiconductor-focused companies amid the AI-driven rally in global equity markets [2]. Samsung’s broader business portfolio, while diversified, has limited its ability to fully capitalize on the semiconductor boom compared to SK Hynix’s specialized focus [2].