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The following guest post examines the resolution of class certification motions in securities class action lawsuits during 2025; considers the parties’ economic arguments in support of or in opposition to class certification; and analyzes the courts evaluation of those arguments. The article is written by Andrew Roper, Mame Maloney, Brendan Rudolph, and Ravi Sinha, Principals at The Brattle Group, and Aidan Kutner, an Associate at The Brattle Group. We would like to thank the authors for allowing us to publish their article as a guest post on our site. Here is the authors’ article.

Continue Reading Guest Post: Key Trends in 2025 Class Certification Decisions: Fraud-on-the-Market Under Fire
Sarah Abrams

Securities class action lawsuits in the U.S. are very much subject to the rules of civil procedure regarding class action certification. In the following guest post, Sarah Abrams, Head of Claims Baleen Specialty, a division of Bowhead Specialty, examines a recent district court class action certification decision and considers its implication. I would like to thank Sarah for allowing me to publish her article as a guest post on this site. I welcome guest post submissions from responsible authors on topics of interest to this site’s readers. Please contact me directly if you would like to submit a guest post. Here is Sarah’s article.

Continue Reading Failure to Launch