Memory, semiconductor, and optical communication stocks collectively declined in the Hong Kong market. CSOP Samsung Electronics Daily (2x) Leveraged Product fell over 19%, YOFC and CIG dropped more than 18%, CSOP SK Hynix Daily (2x) Leveraged Product tumbled over 17%, ASMPT declined more than 15%, HUA HONG GRACE fell over 14%, and GIGADEVICE dropped more than 12%.