Dongguan Dingtong Precision Metal (SHA:688668) stock fluctuated by more than 30% over the last three trading days amid "overly optimistic" rumors about the scale of the company's liquid-cooling business, according to a Friday disclosure to the Shanghai bourse.
The communication connectors manufacturer closed at 362.40 yuan apiece on Thursday, amid gaining popularity in the liquid cooling sector.
The company's liquid cooling business is in the small-batch supply stage and is expanding, but it cannot guarantee whether it can achieve large-scale mass production, it said.
"Intended communication does not equate to formal orders, and there is significant uncertainty regarding the continued availability, order size, and delivery schedule," Dingtong said.
Shares rose 13% during the midday break on Friday.