Starting from the stock changes of listed companies，this article analyzed the sponsors of the domestic “double-gold” marathon event. Research subjects included China Fortune Land Development，the general title sponsor of Beijing Marathon；C&D Group，the exclusive general title sponsor of Xiamen Marathon；Chang’an Automobile，general title sponsor of Chongqing Marathon；Guangzhou Automobile Group，title sponsor of Hangzhou Marathon，and Shenzhen Marathon honorary partner Xtep International. The research team took a marathon event week as an analysis point，and compared the stock price index of sponsors 10 weeks before and after. It was found that during this period，sports goods manufacturer Xtep International sponsored the best. This is relatively close to the results obtained by the research group through the questionnaire survey：the top four companies subjectively considered by the marathon participants to be the most likely to sponsor the event are mineral water or beverage companies，sports equipment companies，automobile companies，and sports shoes and clothing companies. The approximate results obtained from two different research approaches reflect a certain consistency in information reception and investment decision-making between a large number of marathon participants and stock investors. The research team speculated that the two groups may have obtained more consistent information，and it is even possible that the two groups are the same group of decision makers.