The global mergers and acquisitions (M&A) market experienced a notable recovery during the first half of 2025, as a burst of high-value transactions and palpable optimism among dealmakers countered early-year uncertainties linked to geopolitical tensions, trade policies, and persistently high interest rates. Despite a sluggish start to the year and ongoing volatility, a wave of large-scale deals—particularly in Asia and the United States—has reinforced expectations that even bigger transactions could be on the horizon, setting up the second half of 2025 for a record-breaking finish.

Mixed Beginnings Give Way to Renewed Optimism

M&A activity started 2025 under the shadow of U.S. President Donald Trump’s revived trade war, which intensified following his “Liberation Day” tariff policies in April. These aggressive moves sparked fresh market jitters and delayed several anticipated deals and initial public offerings (IPOs), temporarily cooling an environment dealmakers had expected to be substantially more active than in recent years.

“The expectation was we would see a lot of deal activity in the first half of 2025, and the reality is we didn’t see it,” commented Tommy Rueger, global co-head of equity capital markets at UBS. The first part of the year was marked by hesitancy as companies and investors awaited clearer signals on rate policies, inflation, and the trajectory of U.S.-China relations.

Bullish Markets and Policy Shifts Fuel Megadeal Appetite

Interviews with over a dozen leading investment bankers—including representatives from UBS, Bank of America, Morgan Stanley, and Goldman Sachs—signal that confidence is now rebounding. The S&P 500 and Nasdaq have reached fresh record highs by late June 2025, boosted by a drop in the CBOE Market Volatility Index (VIX) to pre-pandemic levels. Bankers point out that institutional investors have returned to equities in force, and a backlog of postponed IPOs has begun to clear, substantially strengthening M&A pipelines.

Yet another key driver is the shift in antitrust policy under the Trump administration. “The probability of very large transactions, perhaps $50 billion-plus, has increased versus a year ago,” says John Collins, global co-head of M&A at Morgan Stanley. The White House’s easier stance on competition review is emboldening corporate leaders to pursue consolidation strategies previously considered too risky.

Deals by the Numbers: Value Outpaces Volume

Preliminary Dealogic data reveals a startling figure: $2.14 trillion worth of deals were signed globally between January 1 and June 27, 2025—a 26% increase over the same period in 2024. While the total number of deals dropped to 17,528 (from 20,583 a year earlier), the average deal size has ballooned. There was a 62% surge in transactions valued above $10 billion, solidifying the high-value nature of current M&A activity.

North America retained its role as the epicenter, seeing $1.04 trillion in deal value (up 17% from 2024). But Asia emerged as the breakout region—in both volume and value—doubling its M&A activity to $583.9 billion and accounting for a more significant 27.3% share of global activity, up more than 11 percentage points year-on-year. This uptrend has been largely driven by bold moves from leading Japanese and Chinese corporations and heightened cross-border acquisition interest, despite ongoing geopolitical strife in the region.

Morale Boosters: Mega-Transactions That Moved Markets

Several blockbuster deals helped buoy investor sentiment during the market’s jittery spring. In April, Global Payments announced a $24.25 billion acquisition of a major card processing and account services firm, marking one of the year’s most prominent fintech consolidations. Charter Communications followed suit in May, acquiring privately held Cox Communications for $21.9 billion, strengthening its competitive edge in the dynamic U.S. broadband market.

Industrials were also in the spotlight: U.S.-based Chart Industries and Flowserve Corp. agreed to merge in a deal valuing the combined entity at approximately $19 billion, creating a formidable force in process equipment manufacturing and solutions for the energy transition.

Asia produced several headline-grabbing deals as well. Toyota Motor announced a $33 billion buyout of a key supplier, signaling continued Japanese consolidation and supply chain fortification. Meanwhile, Abu Dhabi’s National Oil Company (ADNOC) led an $18.7 billion all-cash takeover of Santos, elevating its strategic presence in the Asia-Pacific energy sector. These deals demonstrate a concerted effort by both Asian and Middle Eastern energy majors to secure regional resources and foster vertical integration in an era of supply chain uncertainty.

Market Drivers: What’s Shaping the M&A Outlook?

• Regulatory Backdrop: Trump’s pro-business and lighter antitrust approach has emboldened strategic acquirers, notably in telecommunications, energy, and financial services.
• Interest Rates: Although the Federal Reserve has maintained steady rates, global central banks have begun signaling future easing, supporting more aggressive capital deployment in the second half of 2025.
• Geopolitical Risks: Heightened U.S.-China tensions—and continued instability in other hot spots—prompted some cross-border deal caution in Q1 but ultimately have not choked off Asian consolidation ambitions.
• Equity Markets: The strong recovery in U.S. and Asian equities, alongside robust investor risk appetite, triggered a comeback in IPOs and equity-linked deals, fueling more corporate confidence around deal-making.

“People are feeling more positive than they were a month ago and starting to implement their decisions,” observed Philip Ross, vice chairman at Jefferies. Meanwhile, Deutsche Bank’s Saadi Soudavar highlighted the resilience of equity markets, noting: “Equity markets have shown a remarkable ability to shrug off a lot of the tariff and geopolitical-related volatility.”

Looking Forward: Megadeal Pipeline Builds

Dealmakers see strong momentum heading into the second half of 2025, buoyed by both strategic and financial acquirers ready to deploy record levels of cash. Private equity remains a force, driving competitive bidding for both public and private targets in sectors ranging from technology and healthcare to renewable energy and consumer services. Corporate boards, reassured by stabilized markets and reduced regulatory risk, appear eager to resume transformative dealmaking that was put on ice earlier in the year.

“There were a lot of deals that were put on hold that will come back,” said Ivan Farman, Bank of America’s co-head of global M&A. Analysts widely expect further consolidation among telecoms, energy companies, and financials, as well as new interest in AI, cloud solutions, and digital infrastructure—areas that have delivered above-market growth and margin expansion in recent quarters.

The anticipated increase in $10 billion-plus ‘megadeals’ will likely cement 2025’s status as a landmark year for global M&A.

Conclusion

Despite initial headwinds, the first half of 2025 has been marked by both resilience and innovation in dealmaking. As global markets stabilize and political and regulatory clarity emerge, the pace, scale, and ambition of mergers and acquisitions are poised to surge even further. With bankers and executives increasingly optimistic, all signs point to a banner second half—and possibly a new golden age for global M&A activity.