Samsung Electronics, South Korea's leading chipmaker, has experienced a significant decline in its market capitalization, losing around 90 trillion won ($66.6 billion) since September due to persistent selling by foreign investors. Over the past month, foreign investors have net sold 10.6 trillion won in Samsung shares, marking 23 consecutive days of selling, just short of the 25-day record from 2022. During this time, Samsung's share price plummeted by 20.3%, from 74,400 won to 59,300 won, significantly outpacing the overall market decline of 2.9%. The shift in foreign investment comes after a period where net purchases reached 10.76 trillion won in the first seven months of the year. However, since August, foreign investors have sold off a net 12.65 trillion won of Samsung shares, resulting in a notable decrease in foreign ownership from 56.02% at the end of August to 53.75% by the end of September, marking the steepest drop in two decades. The company's stock slide has been further impacted by disappointing earnings forecasts; Samsung projected a third-quarter operating profit of 9.1 trillion won, below market expectations. In contrast, domestic competitor SK hynix has seen foreign investors net buy 328.76 billion won in shares since September 3, indicating a more favorable outlook for the second-largest chipmaker in Korea.