Global M&A volume exceeded $1 trillion for the first time in four years from July to September

The global M&A market is booming. Data from the London Stock Exchange Group (LSEG) shows that actual M&A transaction value for the period from July to September 2025 reached $1.1031 trillion, a 39% year-on-year increase. This marks the first time in four years that the July-September period has surpassed the $1 trillion mark.

In addition to the continued strength of the US economy, the Trump tariff issue, once a source of uncertainty, has subsided, and companies are shifting from a conservative to an aggressive approach.

The US is the core driver of this M&A boom, with transaction value increasing 48% year-on-year, outpacing Europe’s 34% and Japan’s 38%. US companies, as acquirers, completed $570.6 billion in transactions, a four-year high and accounting for half of the global M&A volume.

According to Mergermarket, a financial information service, 49 large-scale M&A deals exceeding $10 billion have been completed globally so far this year, setting a record high.