SK hynix market value tops $1 trillion as shares rise 11.9%

SK hynix rose 11.94% to 2.27 million won in afternoon trading on May 27, 2026, lifting its market value to about 1,600 trillion won, or $1.06 trillion. The Korea Herald tied the rally to a sector-wide move on AI infrastructure spending, which followed a 19.29% overnight jump in Micron shares after UBS raised its target on Micron.

• Afternoon gain: up 11.94% to 2.27 million won
• Market value about 1,600 trillion won ($1.06 trillion)
• Trigger: Micron up 19.29% overnight after a UBS target raise