Core Viewpoint - The renaming of Sanwei Co., Ltd. to Sanwei Equipment resolves the issue of having two companies with the same name in the A-share market, which has caused confusion among investors and media [1][2]. Group 1: Company Renaming Impact - The renaming does not directly affect the company's fundamentals or valuation, but it is significant for market perception and investor clarity [2][5]. - Historical data shows that companies that changed their names on the Beijing Stock Exchange often experienced stock price declines on the first day of the new name, indicating a potential negative market reaction [2][3]. - Sanwei Equipment's name change resulted in a market value loss of approximately 90 million yuan, making it the most expensive name change on the Beijing Stock Exchange [4][5]. Group 2: Market Behavior and Trends - A total of seven companies have changed their names since the establishment of the Beijing Stock Exchange, with most experiencing price drops on the first trading day after the name change [2][3]. - The average performance of renamed companies over five days post-renaming shows a consistent trend of declines, reinforcing the idea that name changes may lead to negative market sentiment [3][4]. - The market's reaction to name changes suggests that investors may not always act rationally, and there is a pattern of selling pressure associated with such events [5].

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