The joint dynamics of investor beliefs and trading during the COVID-19 crash

Stefano Giglio, Matteo Maggiori, Johannes Stroebel and Stephen Utkus
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Stephen Utkus: Center for Investor Research, Vanguard, Malvern, PA 19355

Proceedings of the National Academy of Sciences, 2021, vol. 118, issue 4, e2010316118

Abstract: We analyze how investor expectations about economic growth and stock returns changed during the February−March 2020 stock market crash induced by the COVID-19 pandemic, as well as during the subsequent partial stock market recovery. We surveyed retail investors who are clients of Vanguard at three points in time: 1) on February 11–12, around the all-time stock market high, 2) on March 11–12, after the stock market had collapsed by over 20%, and 3) on April 16–17, after the market had rallied 25% from its lowest point. Following the crash, the average investor turned more pessimistic about the short-run performance of both the stock market and the real economy. Investors also perceived higher probabilities of both further extreme stock market declines and large declines in short-run real economic activity. In contrast, investor expectations about long-run (10-y) economic and stock market outcomes remained largely unchanged, and, if anything, improved. Disagreement among investors about economic and stock market outcomes also increased substantially following the stock market crash, with the disagreement persisting through the partial market recovery. Those respondents who were the most optimistic in February saw the largest decline in expectations and sold the most equity. Those respondents who were the most pessimistic in February largely left their portfolios unchanged during and after the crash.

Keywords: beliefs; trading; COVID-19; surveys (search for similar items in EconPapers)
Date: 2021
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