(November 15, 2018, 1:44 PM EST) -- NEW YORK — A federal district court erred in dismissing a securities class action lawsuit against an online currency brokerage and its CEO because the lead plaintiff in the action had properly shown that the defendants issued material misrepresentations and acted with the requisite scienter, the lead plaintiff argues in an Oct. 24 appellant brief filed in the Second Circuit U.S. Court of Appeals (Retirement Board of the Policemen’s Annuity and Benefit Fund of Chicago v. FXCM Inc., et al., No. 18-2604, 2nd Cir.)....