I’ve addressed the recent social-media-driven retail trading in stocks like GameStop in prior posts (here and here). In both posts, I focused on evidence that at least some of this trading seems to pursue goals other than (or in addition to) profit. For example, some of these retail traders claim that they are buying and holding stocks as a form of social, political, or aesthetic expression. My coauthors Jeremy Kidd, George Mocsary, and I recently posted a forthcoming article on this subject, Social Media, Securities Markets, and the Phenomenon of Expressive Trading, to SSRN. The article introduces the emerging phenomenon of expressive trading. It considers some of the challenges and risks expressive trading may pose to issuers, markets, and regulators–as well as to our traditional understanding of market functioning. Ultimately, the article concludes that while innovations like expressive trading “can be disruptive and demand a reimagining of the established order,” market participants, issuers, and regulators would be wise to pause and observe before rushing to adopt defensive strategies or implement reforms. Here’s the abstract:

Commentators have likened the recent surge in social-media-driven (SMD) retail trading in securities such as GameStop to a roller coaster: “You

    Commenters have likened the recent retail “meme” trading in stocks such as GameStop Corp. to buying a ticket on a roller coaster—“You don’t go on a roller coaster because you end up in a different place, you go on it for the ride and it’s exciting because you’re part of it.” See, Bailey Lipschultz and Divya Balji, Historic Week for Gamestop Ends with 400% Rally as Shorts Yield, Bloomberg (January 29, 2021).

    The comparison is apt in a number of respects. These retail traders, led by some members of the “WallStreetBets” group on the Reddit social media platform, “got on” GameStop a couple weeks ago at just under $20 a share, and, despite its rapid rise to a high of just under $500 a share, I think most people expect (including the meme traders) that the price at which this turbulent ride will end is somewhere around where it began. After all, GameStop’s fundamentals have not changed. It remains a brick-and-mortar business that was devastated by the pandemic, and it is expected to steadily lose market share to online vendors.

    For anyone interested in the mechanics of the “short squeeze” and how these traders managed to move price