Semiconductor stocks posted their worst week since April 2023 as a key industry gauge fell 20 percent from its record high. Taiwan Semiconductor Manufacturing Co shares dropped 7.29 percent, while tech indices declined 6.47 percent in Taipei, 4.03 percent in Tokyo, and 3.05 percent in Shanghai. Moonshot AI announced its Kimi K3 model on the same day the NASDAQ fell 1.4 percent and Brent crude closed at $88.10 per barrel after rising more than 4 percent.