Today the Supreme Court rejected calls from lawyers, economists and corporate associations to overrule the “fraud-on-the-market” theory that makes it possible to litigate federal securities fraud claims as class actions, instead handing defendants a modest procedural victory.  In Halliburton Co. v. Erica P. John Fund, Inc., the Court declined to overrule a decision that for more than twenty-five years has been used by securities plaintiffs to certify thousands of federal class actions, but also recognized that defendants can rebut class certification by showing that allegedly misleading statements did not affect the price of a company’s securities.  Halliburton kills what had been a growing movement to eliminate federal securities fraud class actions for all intents and purposes.

Plaintiff-respondent Erica P. John Fund, Inc. (the “Fund”) purchased stock in Halliburton and lost money when Halliburton’s stock price dropped upon the release of certain negative news regarding the company.  The Fund filed suit against Halliburton and its CEO David Lesar (collectively, “Halliburton”), alleging that Halliburton had made knowing or severely reckless misrepresentations concerning those topics, in violation of Sections 10(b) and 20(a) of the Securities Exchange Act of 1934 and SEC Rule 10b-5. READ MORE →