Global M&A Hits All-Time Record $2.8 Trillion in H1 2026, Driven by Megadeals

The biggest dealmaking half-year on record

Global mergers and acquisitions hit $2.8 trillion in the first half of 2026, up 48% year-on-year and the highest year-to-date total since LSEG began tracking records in 1980.finance-commerce The surge was powered by 47 mega-deals valued above $10 billion — a 62% jump from the same period last year — which collectively accounted for nearly half of all global M&A volume.finance-commerce +1 The total number of transactions actually fell 9% to roughly 24,000, a six-year low, underscoring a market defined by fewer but far larger bets.finance-commerce

AI and deregulation unlock "dream deals"

Two structural forces are being cited by dealmakers as the engine behind the record pace. First, AI-driven industry reshaping is forcing companies to bulk up or risk irrelevance. Second, a lighter-touch regulatory environment — particularly in the United States and, increasingly, Europe — is giving boards the confidence to pursue combinations that would have faced antitrust scrutiny even a year ago.sedaily +1

The standout transactions illustrate both themes. NextEra Energy announced a $66.8 billion all-stock acquisition of Dominion Energy, aiming to build the country's largest electric utility to meet surging data-center power demand.finance-commerce +1 SpaceX completed a roughly $60 billion stock-swap purchase of coding-AI startup Cursor shortly after its own IPO.sedaily Technology remained the top sector globally, with $649 billion of announced transactions in the first half, LSEG data showed.finance-commerce

"Corporate boards are reviewing every possible strategic option, including once-in-a-lifetime large deals," said Ben Goodchild of Paul, Weiss.sedaily JPMorgan's Charlie Bucknall added that companies increasingly recognize "standing still is itself a risk."sedaily

The K-shaped market beneath the headline numbers

The record total masks a sharply polarised market. Strip out mega-deals and the underlying volume story is flat to negative, with mid-market and smaller transactions still hampered by valuation gaps and uneven growth expectations.pwc PwC's mid-year outlook describes the dynamic as "K-shaped": large, well-capitalised buyers are operating in an entirely different environment from smaller players who cannot access the same scale of financing.pwc

Cross-border M&A jumped 62%, with the U.S. and Britain attracting the largest share of international acquisitions.finance-commerce U.S. deal volume alone rose 77% while Europe surged 105%, whereas Asia-Pacific slipped 2.4%.sedaily Global investment-grade corporate debt issuance — the financing engine behind many of the biggest transactions — hit $3.4 trillion in the first half, a 10% increase year-on-year and itself a record.finance-commerce

Outlook: on pace for $4 trillion by year-end

With momentum accelerating through June, deal advisers and analysts see the full year on track to reach $4 trillion, which would make 2026 the strongest year for M&A since 2021.pwc Morgan Stanley's head of EMEA M&A noted a "growing pipeline of cross-border, strategic deals" in the weeks heading into the second half.finance-commerce PwC warns dealmakers to plan for volatility even so, noting that AI's multitrillion-dollar infrastructure buildout is competing for the same capital, and that any correction in tech valuations could quickly reshape the market's K-curve.pwc