We Reddit in a Forum: The Influence of Message Boards on Firm Stability

The use of messaging boards to instigate coordinated manipulation of stock prices is not a novel phenomenon. However, the growing breadth and sophistication of social media, the widespread availability of technological cloaking techniques, and the ready accessibility of leveraged derivatives have al...

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Main Authors: Corbet, S., Hou, Y., Hu, Y., Oxley, Leslie
Format: Journal Article
Published: 2022
Online Access:http://hdl.handle.net/20.500.11937/97480
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author Corbet, S.
Hou, Y.
Hu, Y.
Oxley, Leslie
author_facet Corbet, S.
Hou, Y.
Hu, Y.
Oxley, Leslie
author_sort Corbet, S.
building Curtin Institutional Repository
collection Online Access
description The use of messaging boards to instigate coordinated manipulation of stock prices is not a novel phenomenon. However, the growing breadth and sophistication of social media, the widespread availability of technological cloaking techniques, and the ready accessibility of leveraged derivatives have all significantly contributed to the growth of the infamous Reddit forum r/wallstreetbets. Using a lexicon of terminology designed to identify explicit and implicit manipulation attempts, this research presents several novel findings. The results indicate significantly positive, pronounced, and persistent abnormal returns in the aftermath of manipulative events, with the results being robust across several testing procedures. These abnormal returns have increased significantly in line with the growth of forum users and the reach of manipulation-related comments. Significant effects on market liquidity and analyst recommendations are further identified across tests. Such continued predatory headwinds are certainly of interest to market-makers, regulators, and policymakers alike, as the irrational exuberance incited by millennial meme stocks and sarcastic GIFs is found to have played a significant role in disrupting market functionality. The desired outcome of some of these five million monthly forum users is to create enough momentum to trigger algorithmic responses to move out-of-the-money options into a profitable state. Our results present evidence that this potential threat to corporate stability is concrete.
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spelling curtin-20.500.11937-974802025-06-24T05:06:08Z We Reddit in a Forum: The Influence of Message Boards on Firm Stability Corbet, S. Hou, Y. Hu, Y. Oxley, Leslie The use of messaging boards to instigate coordinated manipulation of stock prices is not a novel phenomenon. However, the growing breadth and sophistication of social media, the widespread availability of technological cloaking techniques, and the ready accessibility of leveraged derivatives have all significantly contributed to the growth of the infamous Reddit forum r/wallstreetbets. Using a lexicon of terminology designed to identify explicit and implicit manipulation attempts, this research presents several novel findings. The results indicate significantly positive, pronounced, and persistent abnormal returns in the aftermath of manipulative events, with the results being robust across several testing procedures. These abnormal returns have increased significantly in line with the growth of forum users and the reach of manipulation-related comments. Significant effects on market liquidity and analyst recommendations are further identified across tests. Such continued predatory headwinds are certainly of interest to market-makers, regulators, and policymakers alike, as the irrational exuberance incited by millennial meme stocks and sarcastic GIFs is found to have played a significant role in disrupting market functionality. The desired outcome of some of these five million monthly forum users is to create enough momentum to trigger algorithmic responses to move out-of-the-money options into a profitable state. Our results present evidence that this potential threat to corporate stability is concrete. 2022 Journal Article http://hdl.handle.net/20.500.11937/97480 10.1561/114.00000014 unknown
spellingShingle Corbet, S.
Hou, Y.
Hu, Y.
Oxley, Leslie
We Reddit in a Forum: The Influence of Message Boards on Firm Stability
title We Reddit in a Forum: The Influence of Message Boards on Firm Stability
title_full We Reddit in a Forum: The Influence of Message Boards on Firm Stability
title_fullStr We Reddit in a Forum: The Influence of Message Boards on Firm Stability
title_full_unstemmed We Reddit in a Forum: The Influence of Message Boards on Firm Stability
title_short We Reddit in a Forum: The Influence of Message Boards on Firm Stability
title_sort we reddit in a forum: the influence of message boards on firm stability
url http://hdl.handle.net/20.500.11937/97480