KOSPI and KOSDAQ Collapse Below 6,000 and 700 Mark Amid Sharp Decline

South Korea's stock market faced a dramatic crash on 'Black Tuesday' as the KOSPI fell below 6,000 and the KOSDAQ dipped below 700. Circuit breakers were activated after sharp declines, halting trading for 20 minutes. Foreign investors sold heavily, while domestic institutions and individuals offset the selloff. Key stocks like Samsung Electronics and SK Hynix fell over 14%, while Samsung Biologics rose slightly. The downturn followed concerns over China's semiconductor advancements and U.S. tech sector weakness.