U.S. Supreme Court to Consider Critical Issue for Securities Fraud Class Actions: Possible Overruling of Basic’s “Fraud-on-the-Market” Presumption Could Spell Major Changes for Current Regime

Sullivan & Cromwell LLP - November 18, 2013

On November 15, 2013, the U.S. Supreme Court granted certiorari in the case of Halliburton Co. v. Erica P. John Fund, Inc., No. 13-317, raising the prospect that the Court will overrule or significantly limit the legal presumption that each member of a securities fraud class action relied on the statements challenged as fraudulent in the lawsuit. Without this so-called “fraud-on-the-market” presumption, putative class action plaintiffs will be unable to maintain a securities fraud class action unless they can clear the logistically difficult hurdle of proving that each individual shareholder actually relied on the challenged statements when making its purchase or sale of securities. At least four Justices have recently indicated that the Court should reconsider the validity of that doctrine, suggesting that the ultimate opinion in Halliburton could lead to a significant change in securities class action law. Even if the Court ultimately affirms fraud-on-the-market or some variant of the doctrine, the Court may expand defendants’ ability to defeat what in practice has evolved into a virtually irrefutable presumption of reliance. Furthermore, the uncertainty caused by the pendency of the Halliburton appeal may warrant staying securities class actions and may reduce the settlement value of pending cases.