South Korean semiconductor shares rallied sharply on Thursday, driven by upbeat quarterly results and a strong forecast from U.S. memory chipmaker Micron Technology.

The American firm’s performance exceeded market expectations, injecting fresh optimism into the region’s tech-heavy markets and reversing some of the recent skepticism surrounding AI infrastructure spending.

The positive sentiment from Micron’s report rippled across Seoul’s exchanges, with technology stocks leading the broader market higher.

South Korean equities opened with significant gains, buoyed by a wave of buying in semiconductor names.

The benchmark index advanced at the start of trading, reflecting the immediate market reaction to the improved outlook for memory chips, which are critical components in AI data centers.

This development marks a notable shift in market tone.