Yangtze Optical Fibre and Cable (YOFC) stock plummeted 5.02% during intraday trading on Thursday. The sharp decline extends a period of elevated volatility for the optical communications company as investors react to recent financial results.

The ongoing weakness follows the release of YOFC's first-quarter earnings, which revealed a net profit of 4.95 billion yuan. This figure came in significantly below the market's buy-side expectation of 8-10 billion yuan, triggering negative short-term sentiment and prompting continued profit-taking activity by investors.

While the company benefits from positive long-term industry tailwinds, including surging global demand for fiber optics driven by AI data center construction, the repeated pullbacks in the stock price suggest that concerns over the immediate earnings miss and uncertainty regarding the stock's true AI-related earnings potential are currently dominating market behavior.