Asian tech stocks extended their sell-off Monday, as investors sour on global AI-linked plays with the U.S. tech-heavy Nasdaq declining more than 4.5% last week. Memory chip behemoths and heavyweights on South Korea's Kospi Index Samsung Electronics and SK Hynix fell 5% and 2%, respectively. The Kospi plunged as much as 8% as the two companies make up over 40% of the index. Taiwan Semiconductor Manufacturing Co , or TSMC, was down 2.1%, while Hon Hai Precision, also known as Foxconn, fell 5.1%.