Ellis v. Costco Wholesale Corp., 657 F.3d 970 (9th Cir. 2011)

In this appeal, Costco challenged the district court’s order granting class certification in an action in which Costco’s promotional practices were alleged to have discriminated against female employees. The district court’s order granting class certification preceded the United States Supreme Court’s opinion in Wal-Mart Stores v. Dukes, 131 S. Ct. 2541 (2011).

In Ellis v. Costco Wholesale Corp., 2011 U.S. App. LEXIS 19060 (9th Cir. Sept. 16, 2011), the Ninth Circuit reviewed the standards for class certification in an employment class action following the U.S. Supreme Court’s decision in Dukes v. Walmart. In Ellis,three named plaintiffs sought injunctive relief, compensatory damages, and backpay on behalf of a nationwide class of female employees who the plaintiffs claimed had been denied promotion because of their gender. The district court granted class certification. In reviewing the certification order, the court provided guidance for class action litigation in the Ninth Circuit following Walmart.