South Korea's benchmark stock index ended a two-day losing streak, buoyed by a rebound in semiconductor shares. The KOSPI index closed 1.0% higher at 8,476.48 points.

The Seoul Composite Stock Price Index (KOSPI) surged 68% over the second quarter, marking its largest quarterly gain since the final quarter of 1998.

Market movements were volatile early in Tuesday's session, with the index briefly erasing its earlier gains and turning negative. The performance of heavyweight semiconductor stocks influenced the broader market, as investors remained cautious about the sustainability of the artificial intelligence-driven chip rally.

For the month, the index has seen little change. However, it has advanced approximately 68% for the quarter to date and has gained roughly 101% since the start of the year.