On August 24, prior to the opening of the US stock market, the semiconductor, memory, and optical communication sectors all exhibited a weakening trend. Semiconductor stocks, in general, saw a downturn, with individual stocks like Lam Research and Intel experiencing declines of varying magnitudes. The memory sector also trended downward, with stocks such as SK Hynix and Micron Technology taking a hit. Optical communication concept stocks witnessed substantial declines, with notable drops in individual stocks, particularly Applied Optoelectronics, which stood out.