Lawsuit seeking an injunction filed against a stock exchange, aimed at declaring the illegality of a decision issued by the presidency of an arbitration center, which did not accept a request for consolidation of arbitration proceedings, in one of which the claimant seeks class arbitration, including with the intervention of the Public Prosecutor's Office. Denial of the injunction, given that the arbitration center's rules provide for a mere faculty to consolidate proceedings. A measure that could prejudice the speed of dispute resolution, including in view of the admissibility review of class arbitration: