Global M&A market hits new high as bigger deals dominate
Global acquirers underperformed companies not engaged in M&A for the second consecutive quarter.
Sentiment and the balance of points
Rhea-AI Sentiment reads the wording of the document, how positive or negative its language is on a 1 to 5 scale. The balance of points shown with the takes weighs what the document actually discloses, so the two can disagree, for example when a trial that missed its main goal is described in upbeat language.
Rhea-AI Summary
WTW (WTW) published research showing that completed mega deals reached a record nine-month total in the global acquisition market.
There were 24 transactions above US$10 billion in the first nine months of 2026, including nine in the third quarter versus three in the previous quarter. Year-to-date completed deal volume rose 16.1% to 614 from 529 in the same period of 2025. Third-quarter transactions completed within 70 days of announcement represented 43% of deals, versus 35% in the previous quarter; cross-sector transactions rose to 35% from 25%.
Acquirers in deals above US$100 million completed during the third quarter underperformed the benchmark by 10.3 percentage points. Of 200 completed deals, 121 acquirers underperformed and 79 outperformed. North American, European and Asia-Pacific acquirers lagged their regional indices, while UK buyers outperformed.
News Explained
WTW reports that completed global M&A deal value reached
AI-generated analysis. How Rhea-AI works. Not financial advice.
Surge in mega transactions fuels rise in deal value as market divergence deepens in the third quarter of 2026
NEW YORK, Oct. 08, 2026 (GLOBE NEWSWIRE) -- M&A deal value increased
Mega deals valued at over US
Reported year-to-date deal volume rose to 614, up from 529 transactions completed during the same period in 2025, representing a
The M&A data also indicates that dealmakers are accelerating transaction timelines, with quick deals (completed within 70 days of announcement) accounting for
David Dean, Senior Managing Director, M&A Consulting, WTW, said: “Large-scale transactions are continuing to transform the global M&A landscape, with companies acting decisively to expand their scale, address capability gaps and gain access to critical technologies in an increasingly competitive market.
“The faster pace of dealmaking reflects an M&A environment being reshaped by AI-driven transformation, geopolitical tensions and macroeconomic uncertainty. But moving quickly cannot mean compromising thorough due diligence. Companies that put speed ahead of discipline may weaken long-term value creation and face greater challenges after a deal closes.”
_______________
1 The M&A research tracks the number of completed deals over
Of the 200 deals completed during the most recent quarter, 121 transactions, representing
Based on share price performance, global dealmakers underperformed companies not engaged in M&A for the second consecutive quarter. Deals valued above US
Regional performance remained under pressure in the third quarter of 2026, with acquirers in North America, Europe and Asia-Pacific all underperforming their respective regional indices. North American dealmakers underperformed by 13.8pp, completing 109 deals during the quarter, up from 103 in the previous three-month period.
European acquirers underperformed their regional index by 5.0pp in the third quarter of 2026, completing 37 deals. This marks the fourth consecutive quarterly decline in European deal volume since 47 transactions were completed in the third quarter of 2025. By contrast, UK buyers bucked the broader regional trend, delivering a strong outperformance.
Asia-Pacific acquirers underperformed their regional index by 18.7 percentage points in the third quarter of 2026, completing 43 deals compared with 51 in the previous three-month period. Chinese buyers, however, recorded a notable increase in activity, completing 21 deals, up from seven in the second quarter of 2026.
“Corporate acquirers have demonstrated considerable resilience as market pressures persist. Despite higher interest rates, elevated energy costs and uncertainty surrounding the November U.S. midterm elections, dealmakers are likely to continue pursuing transactions that advance their strategic objectives, particularly at the larger end of the market.
“As organizations increasingly use M&A to build scale, integration planning must begin during due diligence. Addressing it early will be essential to realizing value from complex transactions and supporting sustainable growth over the long term,” said Dean.
WTW QDPM Methodology
- All analysis is conducted from the perspective of the acquirer.
- Share-price performance within the quarterly study is measured as a percentage change in share price from six months prior to the announcement date to the end of the quarter.
- All deals where the acquirer owned less than
50% of the shares of the target after the acquisition were removed, hence no minority purchases have been considered. All deals where the acquirer held more than50% of target shares prior to the acquisition have been removed, hence no remaining purchases have been considered. - Only completed M&A deals with a value of at least
$100 million which meet the study criteria are included in this research. - Deal data sourced from LSEG.
About WTW M&A
WTW’s M&A practice combines our expertise in risk and human capital to offer a full range of M&A services and solutions covering all stages of the M&A process. We have particular expertise in the areas of planning, due diligence, risk transfer and post transaction integration, areas that define the success of any transaction.
About WTW
At WTW (NASDAQ: WTW), we provide data-driven, insight-led solutions in the areas of people, risk and capital. Leveraging the global view and local expertise of our colleagues serving 140 countries and markets, we help organizations sharpen their strategy, enhance organizational resilience, motivate their workforce and maximize performance.
Working shoulder to shoulder with our clients, we uncover opportunities for sustainable success—and provide perspective that moves you. Learn more at wtwco.com.
Media Contacts
Arnelle Sullivan +1 718 208 0474
Arnelle.sullivan@wtwco.com
Ileana Feoli: +1 212 309 5504
Ileana.feoli@wtwco.com
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
How many mega deals did WTW track in the first nine months of 2026?
WTW tracked 24 completed mega deals valued above US$10 billion, the largest nine-month rolling total on record. Nine were completed in the third quarter, compared with three in the previous quarter.
How did regional acquirers perform in WTW's third-quarter 2026 M&A study?
North American acquirers underperformed their regional index by 13.8 percentage points, European acquirers by 5.0 percentage points, and Asia-Pacific acquirers by 18.7 percentage points. They completed 109, 37 and 43 deals, respectively. UK buyers outperformed, contrasting with the broader European result.