The stock market has been particularly volatile during the pandemic. Joey Engelberg explains how a social media platform for investors called StockTwits can measure investor sentiment during the Covid-19 pandemic. He also presents evidence that pre-Covid political views are affecting the ways investors are processing information about the pandemic, with Democrat investors holding more pessimistic market expectations during the crisis than Republican investors. Series: "Market Impacts of COVID-19" [Business] [Show ID: 36039]