Until today China and the United States remain engaged in a trade dispute of unprecedented impact on the world economy.A significant amount of tariffs are still in place even after the two countries signed a phase one trade deal.The full impact of the dispute is still unclear as necessary economic data is not yet available.At this point,one reliable measure is stock market data as they are early indicators of how investors responded to the trade dispute in terms of future expectations.Using the classical event study,the thesis shows cumulative abnormal returns over different event windows for significant events of the trade dispute during the period of 2018 to 2019.The analysis includes over 3000 listed companies on the Shanghai and Shenzhen Stock Exchange across more than 25 event dates,which are separated into four distinct categories to allow for more detailed analysis: Trade advantageous announcements,trade disadvantageous announcements,trade advantageous implementations and trade disadvantageous implementations.Additional multivariate analysis further explores the influence of different firm characteristics suggested in the literature on the cumulative abnormal returns.A major focus of the thesis is the influence of the difference in ownership,mainly between state-owned enterprises and private enterprises.The results show a relatively high negative impact on trade disadvantageous implementations events compared to the other event categories for the shortterm event window of three days before and after the event date.In general,the impact on Chinese listed companies is higher on implementation events compared to announcement events.The negative impact of implementation events on private enterprises is higher compared to state-owned enterprises,with private companies in the consumer and service sector experiencing the highest negative cumulative abnormal returns.The results can provide a preliminary approximation of how Chinese listed companies were impacted during this period.