Digital Commons Network^™

After Dura: Causation In Fraud-On-The-Market Actions, Merritt B. Fox

Faculty Scholarship

On April 19, 2005, the Supreme Court announced its unanimous opinion in Dura Pharmaceuticals, Inc. v. Broudo, concerning what a plaintiff must show to establish causation in a Rule lob-5 fraud-on-the-market suit for damages. The opinion had been awaited with considerable anticipation, being described at the time of oral argument in the Financial Times, for example, as the "most important securities case in a decade." After the opinion was handed down, a representative of the plaintiffs' bar lauded it as a "unanimous ruling protecting investors' ability to sue." A representative of the defendants' bar equally enthusiastically hailed it as "a …