Sources: Microsoft's legal team expects the UK CMA to oppose the Activision deal, which may show a new antitrust enforcement alignment across the US, UK, and EU
Context & Ripple Effects
The CMA had already opened its review and detailed concerns that Microsoft could withhold Activision games from rivals, while Microsoft argued Sony remained the dominant player. A reported expectation of opposition therefore turns an active review into a material transaction risk rather than a routine regulatory checkpoint.
The UK scrutiny was developing alongside an expected EU in-depth investigation, giving the proposed acquisition overlapping competition reviews in Europe. The story matters because Microsoft’s legal team is preparing for the CMA to take the hardest position among those regulators.
First-order effects
- Microsoft and Activision face a heightened risk that the CMA will prevent the proposed acquisition from proceeding on its original terms.
- Microsoft must directly address the CMA’s concerns over rivals’ access to Activision games, while Activision remains exposed to prolonged deal uncertainty.
Second-order effects
- Sony gains leverage in the competition debate because the CMA’s stated theory centers on whether Microsoft could limit rivals’ access to key games.
- A CMA opposition would force Microsoft to weigh remedies or a revised transaction structure against the cost of contesting the regulator’s decision.
Third-order effects
- If US, UK, and EU enforcers increasingly pursue large technology acquisitions in parallel, global dealmakers will have to design transactions around multiple competition theories rather than a single decisive approval process.
- The CMA’s role in this case points toward a more consequential UK review process for platform acquisitions, with remedies and deal restructuring becoming central tools rather than last-stage exceptions.
The trend: Large technology acquisitions are increasingly being tested by overlapping antitrust reviews that can reshape a deal even when the buyer and target are headquartered elsewhere.