​New this year, the Recent Developments in Business and Corporate Litigation compilation has been published chapter by chapter. This annual chapter produced by the Business and Corporate Litigation Committee the latest and most significant developments in securities litigation in 2015. In private securities litigation, one of the most highly anticipated decisions was the Omnicare decision in the United States Supreme Court. The Supreme Court provided guidance on whether statements of opinion in registration statements are actionable under Section 11 of the Securities Act of 1933. Additionally, there have been a number of lower court cases applying last year's Halliburton decision to motions for class certification, with some differing results. All are discussed in this chapter.