Merger litigation: more recent developments

There has been a recent increase in merger-related litigation before the Competition Appeal Tribunal, driven largely by an increase in merger prohibition decisions taken by the Competition and Markets Authority. An earlier article considered several merger judgments of the CAT. The present article considers the outcomes of subsequent appeals in two of these cases, Facebook (concerning the CMA’s powers to impose interim enforcement orders) and JD Sports (in which the CAT quashed the CMA’s finding of a substantive lessening of competition). It also considers the outcome of two then pending challenges to CMA decisions to prohibit mergers, FNZ and Sabre. In particular, the Sabre case concerned the CMA’s power to assert jurisdiction, under the share of supply test, to review a merger between two American companies in circumstances where the target company had no direct revenues from customers located in the UK. The judgments in Facebook and Sabre are likely to be of particular relevance to parties that choose not to notify voluntarily their merger to the CMA and so expose themselves to the risk of the CMA identifying and then opening an own initiative investigation into that merger; they confirm that the CMA has a broad discretion in applying the share of supply test and in adopting an IEO of broad scope to the businesses of both merger parties.