Tongding Interconnection Information (SHE:002491) warned investors of uncertainty in stock fluctuations amid the market paying particular market attention to the optical and cable industry, according to a Thursday disclosure to the Shenzhen bourse.
The company's cumulative share price fluctuated more than 20% for three straight trading sessions from June 29 to July 1.
Tongding added there are no significant changes to the external environment, according to the filing.