On October 5, 2023, Advocate General Rantos delivered his opinion on two questions referred to the Court of Justice by the Portuguese Competition, Regulation and Supervision Court (the “referring court”).[1]  The referring court seeks clarification on whether a ‘standalone’[2] exchange of information between competitors can be classified as a restriction by object under Article 101 TFEU, and whether that classification is permitted where it has not been possible to establish any uncertain or procompetitive effect on competition resulting from the exchange.  The case gives the Court of Justice an opportunity to clarify its recent evolution from a broad and formalistic interpretation of the concept of a restriction by object to a narrower, more  pragmatic interpretation of that concept.[3]