Zhejiang Sanhua Intelligent Controls Co., Ltd. (02050.HK) saw its stock price plummet by 5.06% in pre-market trading on Thursday, following the company's clarification regarding rumors of significant robot orders. The sharp decline comes after a period of speculative trading driven by unconfirmed reports about a potential deal with Tesla.

Late Wednesday, Zhejiang Sanhua issued a statement denying rumors that it had received large orders for robots. The company emphasized that there were no undisclosed significant matters and that it had not participated in any media interviews on the day the rumors circulated. This clarification appears to have dampened investor enthusiasm, leading to the current sell-off.

The stock's volatility in recent days highlights the impact of speculation in the robotics and AI sectors. Zhejiang Sanhua, known as the "exclusive supplier" of joint actuators for Tesla's humanoid robots, had previously seen its share price nearly double within two months due to optimism surrounding Tesla's Optimus robot project. However, recent reports of delays in the mass production of the Tesla Optimus robot, coupled with the company's denial of new orders, have triggered a rapid reversal in investor sentiment.