South Korea's KOSPI index jumped more than 5% on Thursday, briefly reclaiming the psychologically significant 9,000-point level for the first time in weeks.
The broad market rally was anchored by a wave of buying in the technology sector, with semiconductor stocks leading the charge after Micron Technology reported earnings that exceeded market expectations.
The surge in Seoul reflects a broader repricing of risk across Asian equity markets, where investors are rotating into high-growth tech names.
The semiconductor sector, which carries significant weight in the KOSPI, saw its largest single-day gain in months as traders interpreted Micron's performance as a positive signal for the wider memory and foundry supply chain.
The rally was broad-based within the tech complex, lifting not just pure-play chipmakers but also equipment suppliers and materials firms.
This move comes as global markets digest a series of robust earnings reports from the technology sector, reinforcing the view that demand for AI-related hardware remains resilient.