Fewer Deals, Bigger Deals: $2.8 Trillion in Six Months
Global announced merger value set a first-half record, surpassing 2021, with transactions above $5 billion rising 44% in number and 148% in value as companies chased scale in AI, power and media.
Global mergers and acquisitions reached roughly $2.8 trillion in announced value in the first half of 2026, the strongest first half on record and ahead of the previous peak set in 2021. Full-year volume is on track toward $4 trillion.
The composition is more revealing than the total. Companies announced fewer transactions than in recent years, but the ones they announced were far larger. Deals valued above $5 billion rose about 44% in number and roughly 148% in value.
Three forces behind the megadeals
Artificial intelligence. The dominant driver in technology, and increasingly outside it. Companies are buying compute, models, data and the power to run them. The largest private merger ever completed — the $1.25 trillion combination of a rocket company and an AI developer in February — was framed explicitly around computing infrastructure.
Power and infrastructure. Electricity has become the constraint on the AI buildout, which has made generation and transmission assets strategically valuable. A consortium led by large infrastructure investors agreed to take a major American power producer private in a transaction valued in the tens of billions.
Media consolidation. The contest for Warner Bros. Discovery, which ended with a $110.9 billion all-cash agreement, was the year's most public auction and reshaped the assumptions of every remaining media company.
Why boards are moving now
The regulatory environment is the most permissive it has been in years, approval timelines have shortened, and financing is available at scale. Bankers describe boards as working under the assumption that the window has a political expiration date.
The selectivity argument
The pattern of fewer, larger transactions is often described as discipline. It can equally be described as concentration risk: when a company's strategy depends on one transformational acquisition rather than several smaller ones, integration failure has no offsetting successes.
History is not encouraging on this point. The largest deals of any cycle have generally underperformed, and the cycles that produced the biggest transactions — 2000, 2007, 2021 — were each followed by a period in which acquirers spent years writing down what they bought.
