On the “mementum” of Meme Stocks

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. Understanding these properties helps investors and market authorities in their decisions.

Keywords: Meme stocks, Social media, Social trading, Cointegration, Regime switching

JEL Classification: G50, C32, C58