Samsung Electronics and SK Hynix led a sharp Kospi rebound after an AI-led selloff, as investors returned to South Korea’s memory chip stocks despite heightened volatility.

South Korea’s first single-stock leveraged products attracted explosive interest from individual investors, drawing nearly 9 trillion Korean won in funds shortly after listing. However, recent sharp declines in semiconductor stocks have caused most of these products to fall below their base prices.

By Jihoon Lee, Yena Park and Heekyong Yang SEOUL, May 27 (Reuters) - SK Hynix topped $1 trillion in market value for the first time on Wednesday, joining its memory chip rivals Samsung Electronics and Micron Technology in reaching the milestone on an AI-driven rally.

SEOUL - Nvidia chief executive officer Jensen Huang said on June 8 that SK Hynix would continue to be the AI chipmaker’s largest partner. a win for the South Korean company vying with Samsung Electronics in a red-hot arena.

Samsung HBM5 made its public debut at Computex 2026 with a new Heat Path Block thermal architecture and a 2nm base die plan — but Nvidia CEO Jensen Huang spent the same week signing SK hynix wafers and celebrating its trillion-dollar valuation,

The semiconductor company recently joined the $1 trillion club

Samsung Electronics fell more than 5% in early trade, while SK Hynix dropped nearly 7%, making the two chip giants the biggest drags on Seoul’s benchmark index. The immediate trigger came from Broadcom after the US chipmaker reported strong quarterly numbers, but its AI semiconductor outlook fell short of investors’ stretched expectations.

South Korean semiconductor stocks Samsung Electronics (KS:005930) and SK hynix have risen 798% from their 500-day low as of Monday, surpassing the 717% increase recorded during the IT bubble, according to Jefferies.

Fund managers who’ve made a killing this year with positions in the three top-performing emerging market stocks are increasingly being forced to diversify elsewhere.

CXMT DDR5 memory prices reportedly match Samsung, SK Hynix, and Micron, with supply flexibility emerging as its key advantage.

SEOUL] SK Hynix topped US$1 trillion in market value for the first time on Wednesday (May 27), joining its memory chip rivals Samsung Electronics and Micron Technology in reaching the milestone on