SANHUA(SZ:002050) 第一财经·2025-10-18 03:40Core Viewpoint - The article discusses the significant stock price surge of Sanhua Intelligent Controls (002050.SZ) triggered by rumors of a massive order from Tesla, highlighting the impact of social media on stock movements and the mechanisms behind the spread of such rumors [2][3][4]. Group 1: Stock Price Movement - On October 15, Sanhua Intelligent Controls experienced a rapid increase in stock price, reaching a limit up of 44.18 CNY per share within half an hour, with a total trading volume of 11.98 billion CNY [2][3]. - The surge was attributed to a rumor claiming that Sanhua had secured a 685 million USD order from Tesla for linear actuators, which was said to be enough to produce at least 180,000 Optimus robots [4][8]. - The stock's trading activity was initially low, but after the rumor spread, trading volume surged, with a notable transaction of over 140,000 shares occurring shortly after the rumor began circulating [23][22]. Group 2: Rumor Propagation - The rumor originated from an overseas social media platform, where it was initially posted by a user who claimed it was based on domestic media reports, thus giving it an appearance of credibility [4][14]. - The rumor was further amplified by other accounts on social media, which helped it gain traction among investors on platforms like Xueqiu and Eastmoney, leading to widespread attention [9][14]. - The timing of the rumor's release was strategically chosen to coincide with the A-share market's trading hours, allowing for maximum impact before any verification could occur [15][16]. Group 3: Market Reactions - Following the rumor, significant buying activity was observed from retail investors, institutions, and foreign capital, with the top trading seats accounting for nearly 3.5 billion CNY in transactions [18][22]. - Notably, a well-known trading seat associated with retail investor "Zhang Mengzhu" was responsible for a net purchase of over 680 million CNY on that day [20][21]. - However, there were signs of profit-taking among institutional investors and foreign capital, with substantial sell-offs occurring shortly after the stock price spike [25][26]. Group 4: Clarification and Aftermath - On the night of October 15, Sanhua Intelligent Controls issued a clarification stating that the rumors regarding the Tesla order were untrue, leading to a significant drop in its stock price the following day [13][24]. - The article emphasizes the role of misinformation and the "gray market" of rumor propagation in the A-share market, where fabricated news can lead to substantial market movements [16][17].