The Microsoft–Activision Block: What It Signals for UK Tech

What the Microsoft–Activision Deal Was and Why the CMA Blocked It

Microsoft agreed to acquire Activision for $69bn. Activision is one of the world’s largest video‑game publishers, and Microsoft already controls Xbox, Windows, Azure and Xbox Cloud Gaming. According to the CMA, Microsoft accounts for roughly 60–70% of cloud‑gaming services in the UK. The regulator concluded that the takeover would strengthen Microsoft’s dominant position in cloud gaming and harm competition and consumers.

The CMA was not concerned about console‑gaming competition. Its focus was cloud gaming, where control of titles like Call of Duty, Overwatch and World of Warcraft could give Microsoft an outsized advantage. Microsoft proposed remedies, including licensing deals, but the CMA said these would require ongoing regulatory oversight. It preferred to block the deal entirely and let market forces operate without continuous intervention.

Microsoft and Activision executives criticised the decision publicly. Activision’s CEO said the UK was “clearly closed for business.” Microsoft’s president Brad Smith called the ruling “bad for Britain” and suggested Europe looked more attractive for tech investment. Both companies plan to challenge the decision in the Competition Appeal Tribunal, although the review will focus on procedure rather than substance. If the block stands, Microsoft may owe Activision $3bn for the failed deal.

Is There a Pattern in CMA Decisions

The CMA has taken a firm stance on Big Tech before. In 2022, it ordered Meta to sell Giphy, reversing Meta’s acquisition because it would reduce competition in UK display advertising and restrict rivals’ access to GIF libraries. This was the first time the CMA had forced a major Silicon Valley company to unwind a completed deal.

Both the Meta and Microsoft decisions signal a regulator willing to intervene when large technology companies threaten competition. These rulings are not anti‑tech. They reflect a belief that unchecked consolidation could harm consumers and smaller firms.

Wider Implications for the UK Technology Sector

Microsoft and Activision argue that the CMA’s decision undermines the UK’s ambition to attract global tech investment. If major firms reconsider expansion plans, the UK could lose out on capital, talent and innovation. Some UK tech leaders share this concern. Ophelia Brown of Blossom Capital said the ruling damaged the UK’s image.

Others disagree. William E Kovacic, former chair of the US Federal Trade Commission and former CMA non‑executive director, praised the CMA’s expertise and called the decision “a very big win for the broader effort to realign antitrust enforcement.”

Brad Smith suggested the CMA misunderstood the market, which is surprising given the regulator’s depth of expertise. His criticism raises questions about whether consultation processes between regulators and companies need improvement. Microsoft believed it had addressed the CMA’s concerns, especially after the regulator appeared to soften its position last month.

Meanwhile, fewer companies are listing on the UK stock market. However, data from London & Partners shows London received the second‑highest level of tech foreign direct investment in 2022 and the most tech investment projects in Europe. The decline in listings may be coincidental rather than a direct consequence of CMA decisions.

Last week, the CMA launched a review of the AI market. It will examine underlying AI technologies and their impact on consumers and businesses, then publish principles to safeguard competition. The regulator is clearly preparing for rapid developments in emerging tech sectors.

Conclusion

Recent CMA decisions show that the UK is cautious about the influence of large technology companies on competition. This caution is intended to protect consumers and smaller firms. Although there are legitimate criticisms of the CMA’s reasoning, the decision does not mean the UK is closed for business. Instead, it signals a commitment to fairness and a market environment where all technology companies can thrive. For investors, that may be a reassurance rather than a deterrent.