This study is an empirical study on the relationship among global corporate Hyundai Motor company stock price, Hyundai Motor company stock futures price and internet search trends. In this study we used 1807 daily data of the global corporate Hyundai Motor company stock price, Hyundai Motor company stock futures price and internet search trends from January 4, 2016 to December 6, 2022. We try to analyze the mutual influence and the causality between Hyundai Motor company stock price, Hyundai Motor company stock futures price and internet search trends. We wish to analyze the extent of cross-influence. We employ variance decomposition function based on VAR model as well as impulse response after scointegration test and unit root test. An important result of this study are summarized as follows: First of all, raw time series data of global corporate Hyundai Motor company stock price and Hyundai Motor company stock futures price has unit roots. Secondly, the first differential data of the global corporate Hyundai Motor company stock price, Hyundai Motor company stock futures price and internet search trends has no unit roots. Third, there is at least one cointegration among the first differential data of global corporate Hyundai Motor company stock price, Hyundai Motor company stock futures price and internet search trends. Finally, global corporate Hyundai Motor company stock price, Hyundai Motor company stock futures price and internet search trends granger causes global corporate Hyundai Motor company stock price, Hyundai Motor company stock futures price and internet search trends.