The Korea Composite Stock Price Index closed down today, returning to around 6500 points from 5 days ago, erasing the rebound from the past few days. Previously, Goldman Sachs suggested that 6500 is a key support level for the Korean stock index in this cycle. If it breaks below, it could head toward the 6100 or even the 6000 range. Currently, the main weight of the index remains with Samsung Electronics and SK Hynix.