Yangtze Optical Fibre and Cable (YOFC) saw its stock price plummet 5.06% during intraday trading on Wednesday. The decline comes after the optical fiber manufacturer experienced a significant rally earlier in the week.

The company issued an abnormal trading announcement warning that while the global fiber optic cable industry is in an upcycle, the magnitude of price fluctuations for certain products remains uncertain, and the impact on company performance must be assessed in conjunction with market conditions and business structure.

The stock had surged over 30% in a single session earlier this week, driven by positive industry news including Japanese fiber supplier Fujikura raising its earnings guidance and announcing price increases amid surging North American AI data center demand. Following this rapid appreciation, short-term profit-taking pressure has become evident, contributing to the current decline.