We find that meme stocks share common dynamics for price, volume, and social activity.
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We identify the mementum of stocks via a regime-switching cointegration model.
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We show that mementum is significant and positively related to the stock’s returns.
Abstract
The meme stock phenomenon has yet to be explored. In this note, we provide evidence that these stocks display common stylized facts for the dynamics of price, trading volume, and social media activity. Using a regime-switching cointegration model, we identify the meme stock “mementum” which exhibits a different characterization compared to other stocks with high volumes of activity (persistent and not) on social media. Finally, we show that mementum is significant and positively related to the stock’s returns. Understanding these properties helps investors and market authorities in their decisions.