The Correlation Analysis of Stock Price Towards Public Sentiment in Automotive Industry

Abstract

Information from news and social media is an indispensable part of business and investment activity. Following the advancement of social media, the public's opinion has become abundant. Instagram, Facebook, and Twitter are social media platforms that have recently received much attention from the crowd. Furthermore, the sentiment of headline news reflects that stock price depends on the company's profit or loss. In the view of the electric car's issue, this study observes the public's opinion for car brands to examine the correlation between the stock price and the sentiment from social media and headline news by using Pearson correlation. The results show a reasonably strong correlation between the public sentiment in social media and headline news with the rise and fall in stock price. This study found a reasonably strong correlation between headline news, Twitter, Facebook, and automotive stock prices. On the other hand, Instagram has not shown a strong enough correlation because discussions on Instagram are not as extensive as Facebook and Twitter. The research benefit for investors is to understand mechanisms about public sentiment towards Volkswagen, General Motors, and Chrysler brands produced by the automotive industry and support them to make the right decisions in the capital market.