John F. Savarese and George Conway are partners in the Litigation Department at Wachtell, Lipton, Rosen & Katz. This post is based on a Wachtell Lipton firm memorandum by Mr. Savarese, Mr. Conway, and Charles D. Cording.
On November 15, 2013, the Supreme Court agreed to hear a case that could, depending upon its outcome, dramatically change private securities litigation. The case is Halliburton Co. v. Erica P. John Fund, Inc., No. 13-317, and it presents the question of whether the Court should reconsider the fraud-on-the-market presumption of reliance that applies in class actions under Section 10(b) of the Securities Exchange Act and SEC Rule 10b-5.
The case is of enormous potential significance. Adopted in 1988 in Basic v. Levinson, the fraud-on-the-market presumption effectively eliminated the need for plaintiffs to individually prove reliance on alleged misstatements in cases involving securities that trade on “efficient” markets. By dispensing with proof of individualized reliance, Basic makes possible the certification of massive Section 10(b) class actions. Without the presumption, classes could not be certified under Federal Rule of Civil Procedure 23(b)(3), because individual reliance questions would predominate over common questions affecting the class as a whole.