Abstract
On social trading platforms, anyone can create investment portfolios and share them with others. This leads to an abundance of portfolio strategies available to investors. However, this variety comes with the drawback of high search costs for investors looking for the most promising portfolios to invest in. Platform operators provide a ranking on these portfolios, thus making it easier for investors and reducing search costs. In our study, we analyze the value of this ranking regarding various aspects and especially against the background of its protective function in turbulent market phases. For this purpose, we look at the stock market crash in connection with the Covid-19 pandemic. Our results show (i) that investors on social trading platforms are making use of the ranking, (ii) that the ranking offers value for these investors, and (iii) protects them from extreme losses in downward periods. The ranking we analyzed rather identifies portfolios with a more successful market timing than those with an effective stock selection. We further show that changes in the ranking tend to contribute to procyclical behavior (iv). Finally, we provide preliminary evidence that indicates rankings’ influence on the behavior of traders.
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Bankamp, S., Muntermann, J. (2020). Portfolio Rankings on Social Trading Platforms in Uncertain Times. In: Clapham, B., Koch, JA. (eds) Enterprise Applications, Markets and Services in the Finance Industry. FinanceCom 2020. Lecture Notes in Business Information Processing, vol 401. Springer, Cham. https://doi.org/10.1007/978-3-030-64466-6_5
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DOI: https://doi.org/10.1007/978-3-030-64466-6_5
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