Tag Archives: Price Impact

Guest Post: An Analytical Approach To Defending Securities Class Claims

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 … Continue Reading

Guest Post: Eight Circuit: Under Halliburton II, Defendants Successfully Rebut Fraud-on-the Market Presumption

In 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 … Continue Reading

Guest Post: Update on Economic Analysis of Price Impact in Securities Class Actions Post-Halliburton II

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 … Continue Reading

Defendants Unable to Establish Absence of Price Impact, Class Certification Granted

In its long-awaited June 2014 decision in the Halliburton case, the U.S. Supreme Court declined to jettison the fraud on the market theory on which the presumption of reliance is based, but it did provide that defendants could attempt to rebut the presumption of reliance by showing that the alleged misrepresentation that is the basis … Continue Reading
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