The won-dollar exchange rate, the benchmark KOSPI and the secondary Kosdaq are displayed on an electronic board in the dealing room of Hana Bank headquarters in Seoul, Tuesday.
KOSPI closed at 8,096.93, up 612.52 points, or 8.18 percent, from the previous session, while Kosdaq gained 56.42 points, or 6.19 percent, to finish at 967.81.
Yonhap Korean stocks rebounded sharply Tuesday as semiconductor shares rallied worldwide, with KOSPI surging more than 8 percent to reclaim the 8,000-point threshold, while Kosdaq also posted strong gains.
Amid heightened volatility in domestic financial markets, a sharp sell-off a day earlier had triggered circuit breakers and sell-side sidecars in the KOSPI and Kosdaq markets.
Just one day later, however, both markets staged a rapid recovery, prompting buy-side sidecars on both exchanges.