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Halliburton Ii At Four: Has It Changed The Outcome Of Class Certification Decisions?, Noah Weingarten

Fordham Journal of Corporate & Financial Law

The U.S. Supreme Court's decision in Halliburton Co. v. Erica P. John Fund, Inc., 573 U.S. 258 (2014) (Halliburton II) appeared to give corporate defendants a new tool to defeat class certification in the context of securities fraud class action litigation: rebutting the requisite presumption of reliance by showing a lack of "price impact"-a term that Halliburton II used to describe whether the price of an allegedly affected company's stock went up or down. However, based on an empirical study of pre- versus post-Halliburton II class certification decisions, it appears that the outcomes of class certification decisions have become even …