In what is now the third interlocutory appeal in the course of class certification proceedings spanning more than a decade, the case of Erica P. John Fund, Inc. v. Halliburton Co. will head back to the United States Court of Appeals for the Fifth Circuit, with perhaps another trip to the Supreme Court to follow. The Fifth Circuit’s eventual decision on this latest interlocutory appeal could clarify—at least in the Fifth Circuit—just how far a defendant in a securities class-action can go in presenting indirect evidence of (a lack of) price impact to defeat class certification.
In a lengthy ruling containing a detailed analysis of dueling economic expert reports, a federal court in Texas held on July 25, 2015 that defendant Halliburton Company demonstrated a lack of price impact at the class-certification stage on nearly all of the plaintiffs’ claims, thus rebutting the presumption of reliance. This action has twice been to the Supreme Court, most recently in Halliburton, Co. v. Erica P. John Fund, Inc., 134 S. Ct. 2398 (2014) (“Halliburton II”), which held that the fraud-on-the-market presumption of reliance may be rebutted by showing a lack of price impact from the alleged misrepresentation. The district court’s recent decision is significant because it is one of the first to consider the issue of price impact post-Halliburton II, and because the decision suggests that lower courts may be willing to wade deep into the complications of event studies and economic analysis in order to determine price impact at the class-certification stage.