The rise and fall of WallStreetBets: social roles and opinion leaders across the GameStop saga

• URL: http://arxiv.org/abs/2403.05876v1
• Date: Sat, 9 Mar 2024 11:02:26 GMT
• Title: The rise and fall of WallStreetBets: social roles and opinion leaders across the GameStop saga
• Authors: Anna Mancini, Antonio Desiderio, Giovanni Palermo, Riccardo Di Clemente and Giulio Cimini
• Abstract summary: We study the role of opinion leaders on Reddit WallStreetBets during the GameStop short squeeze of January 2021. Key features of opinion leaders are large risky investments and constant updates on a single stock. This work sheds light on the users' roles and dynamics that led to the GameStop short squeeze.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Nowadays human interactions largely take place on social networks, with online users' behavior often falling into a few general typologies or "social roles". Among these, opinion leaders are of crucial importance as they have the ability to spread an idea or opinion on a large scale across the network, with possible tangible consequences in the real world. In this work we extract and characterize the different social roles of users within the Reddit WallStreetBets community, around the time of the GameStop short squeeze of January 2021 -- when a handful of committed users led the whole community to engage in a large and risky financial operation. We identify the profiles of both average users and of relevant outliers, including opinion leaders, using an iterative, semi-supervised classification algorithm, which allows us to discern the characteristics needed to play a particular social role. The key features of opinion leaders are large risky investments and constant updates on a single stock, which allowed them to attract a large following and, in the case of GameStop, ignite the interest of the community. Finally, we observe a substantial change in the behavior and attitude of users after the short squeeze event: no new opinion leaders are found and the community becomes less focused on investments. Overall, this work sheds light on the users' roles and dynamics that led to the GameStop short squeeze, while also suggesting why WallStreetBets no longer wielded such large influence on financial markets, in the aftermath of this event.

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