China A-share optical-communications sector extended gains. Zhishang Technology hit the daily limit; Tianfu Communication and Cambridge Technology rose over 6%, while Zhongji Xuchuang and Xinyisheng also climbed.

2026-10-21

China A-share optical-communications sector extended gains. Zhishang Technology hit the daily limit; Tianfu Communication and Cambridge Technology rose over 6%, while Zhongji Xuchuang and Xinyisheng also climbed.