(February 15, 2018, 1:14 PM EST) -- HOUSTON — Parties in a securities class action lawsuit against an appliance retailer and others recently asked the Fifth Circuit U.S. Court of Appeals to determine whether a federal district court properly considered price impact and whether the correct damages methodology was applied in considering the length of the class period (Laborers Pension Trust Fund — Detroit and Vicinity, et al. v. Conn’s Inc., et al., No. 17-20525, 5th Cir.)....