Mega-Deals Turn M&A Into a $2.8T Half-Time Show, Wall Street Refuses to Read the Small Print 📈

Global mergers and acquisitions reached $2.8 trillion in the first half of 2026, up 48% year over year and the strongest opening six months since LSEG began tracking deals in 1980. The surge was driven almost entirely by a small number of very large transactions, even as overall deal count shrank. The total number of deals fell 9% to roughly 24,000, the lowest first-half count in six years, according to LSEG data.

Roughly 47 deals valued above $10 billion accounted for more than $1.3 trillion combined, representing close to half of all M&A value during the period. Ivan Farman, co-head of Global M&A at Bank of America, said the stronger pace of large-scale deals versus smaller transactions "reflects a growing view that a $1 billion to $3 billion deal takes just as much time as a larger one, so ​when an opportunity for a big transaction arises, companies see this as the moment to act."

Ample financing supported the appetite for larger takeovers. Global investment-grade corporate debt issuance reached $3.4 trillion in the first half, up 10% from a year earlier, according to Reuters. Technology led announced activity, with $649 billion in deals over the first six months. Cross-border M&A climbed to $893 billion, a 62% increase from the same period last year and the strongest start to a year since 2018, with the United States drawing 25% of cross-border transactions and Britain ranking a close second. PwC projects full-year global M&A will reach $4 trillion in 2026, which would mark the strongest year since 2021.