GigaDevice's stock plummeted 5.05% during intraday trading on Friday, as investors reacted to the company's explicit warnings about valuation and industry risks.

The decline followed an abnormal trading announcement issued by the company, which cautioned that its rolling price-to-earnings ratio exceeds industry averages. GigaDevice highlighted the significant price increases driven by supply shortages in the storage chip industry but warned that the sector historically exhibits pronounced cyclical volatility, with supply-demand dynamics expected to eventually rebalance.

The broader Hong Kong semiconductor sector also faced pressure during the session, contributing to the downward movement in GigaDevice's stock price as market sentiment turned cautious following the company's risk disclosure.