From Reddit to Wall Street: The role of committed minorities in financial collective action

• URL: http://arxiv.org/abs/2107.07361v2
• Date: Mon, 13 Sep 2021 18:06:03 GMT
• Title: From Reddit to Wall Street: The role of committed minorities in financial collective action
• Authors: Lorenzo Lucchini, Luca Maria Aiello, Laura Alessandretti, Gianmarco De Francisci Morales, Michele Starnini, Andrea Baronchelli
• Abstract summary: In January 2021, retail investors coordinated on Reddit to target short selling activity by hedge funds on GameStop shares. Such an effective collective action was unprecedented in finance, and its dynamics remain unclear. We analyse Reddit and financial data and rationalise the events based on recent findings describing how a small fraction of committed individuals may trigger behavioural cascades.
• Score: 5.4015640793167154
• License: http://creativecommons.org/licenses/by-sa/4.0/
• Abstract: In January 2021, retail investors coordinated on Reddit to target short selling activity by hedge funds on GameStop shares, causing a surge in the share price and triggering significant losses for the funds involved. Such an effective collective action was unprecedented in finance, and its dynamics remain unclear. Here, we analyse Reddit and financial data and rationalise the events based on recent findings describing how a small fraction of committed individuals may trigger behavioural cascades. First, we operationalise the concept of individual commitment in financial discussions. Second, we show that the increase of commitment within Reddit predated the initial surge in price. Third, we reveal that initial committed users occupied a central position in the network of Reddit conversations. Finally, we show that the social identity of the broader Reddit community grew as the collective action unfolded. These findings shed light on financial collective action, as several observers anticipate it will grow in importance.

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