Nessim Mezrahi

In the following guest post, Nessim Mezrahi, cofounder and CEO of SAR, a securities class action data analytics and software company, takes a look at possible defenses to securities class action lawsuits that corporate defendants may have based on analysis of the claimed stock price declines involved. A version of this article previously appeared on Law 360. I would like to thank Nessim for allowing me to publish his article as a guest post on this site. I welcome guest post submissions from responsible authors on topics of interest to this blog’s readers. Please contact me directly if you would like to submit a guest post. Here is Nessim’s article.
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paul weiss largeIn its June 2014 decision in Halliburton Co. v. Erica P. John Fund, Inc., the U.S. Supreme Court held, among other things, that in order to try to rebut the fraud-on-the-market presumption in order to defeat class certification, defendants can contend that the allegedly corrective disclosure did not impact the defendants company’s share price. In an April 12, 2016 decision in IBEW Local 98 Pension Fund v. Best Buy Co., Inc., the Eight Circuit, applying Halliburton, held that the defendants had successfully rebutted the presumption in the case by demonstrating absence of price impact. In the following guest post, attorneys from the Paul Weiss law firm takes a look at the Eighth Circuit’s decision and considers its significance. I would like to thank the attorneys from the Paul Weiss firm for allowing me to publish their article as a guest post on this site. I welcome guest post submissions from responsible authors on topics of interest to this site’s readers. Please contact me directly if you would like to submit a guest post. Here is the Paul Weiss attorneys’ guest post.
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Renzo Comolli
Jorge Baez NERA photo
Jorge Baez

In its June 2014 opinion in Erica P. John Fund, Inc. v. Halliburton Co., the United States Supreme Court held that in connection with a motion for class certification in a securities class action lawsuit, a defendant should have the opportunity to try to rebut the presumption of reliance by showing that the alleged misrepresentation did not impact the defendant company’s share price. The case itself was remanded to the district court for further proceedings in light of the Supreme Court’s ruling. On July 25, 2015, the District Court issued its ruling on the motion for class certification based on the principles the Supreme Court enunciated. A copy of the District Court ruling can be found here.

In the following guest post, Renzo Comolli and Jorge Baez of NERA Economic Consulting take a look at the district court’s ruling on the class certification motion. Renzo and Jorge are both Senior Consultants for NERA.

 

I would like to thank Renzo and Jorge for their willingness to allow me to publish their article as a guest post here. I welcome guest post submissions from responsible authors on topics of interest to readers of this blog. Please contact me directly if you would like to submit a guest post. Here is Renzo and Jorge’s guest post.

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On 25 July 2015, the United States District Court for the Northern District of Texas issued the much-anticipated ruling on class certification in Erica P. John Fund, Inc. v. Halliburton Co. The economic analysis of price impact was front and center in the Court’s ruling.

This ruling follows the Supreme Court’s decision on price impact that is widely known as Halliburton II. Although this ruling involves facts that are unique to Halliburton’s particular disclosures, attorneys may look at it as a roadmap for guiding economic analysis of price impact in future cases in the post-Halliburton II world.
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stock pricesIn its June 2014 opinion in the Halliburton case, the U.S. Supreme Court held that securities lawsuit defendants may introduce evidence at the class certification stage to try to show that the alleged misrepresentation on which the plaintiffs rely did not impact the defendant company’s share price. To show the absence of price impact, defendants