Looking Back at M&A in 2025: Behind the Great Rebound

The 2025 M&A Rebound: A $4.9 Trillion Year

In a year defined by artificial intelligence’s relentless advancement, shifting trade policies, and tepid global volume growth, companies across industries recognized the urgent need to reboot strategy. For many, that meant a decisive return to mergers and acquisitions. The year 2025 delivered the second-highest level of deal activity in history: deal value surged 40% to an estimated $4.9 trillion, while volume increased 7%, with similar gains across strategic, private equity, and venture capital acquirers.

According to Bain & Company’s 2026 M&A Report, the rebound was remarkably broad-based. All regions and industries grew by double digits, reflecting a fundamental shift in executive sentiment from cautious observation to strategic action. When unpacking the drivers of this recovery, two trends stand out with particularly broad implications for dealmakers and corporate strategists alike.

First, it was a year of outsized bets by companies that traditionally make few acquisitions. This raises important questions about execution capability and value creation. Second, despite the robust headline numbers, M&A actually took a back seat to other investments in 2025 as companies directed substantially more capital toward capex and R&D. Understanding these dynamics is critical for anyone navigating the evolving corporate strategy landscape heading into 2026.

Tech M&A Surges 77% on AI-Driven Dealmaking

Technology M&A led the 2025 rebound with a stunning 77% increase in deal value, propelled primarily by transactions targeting AI-related assets and capabilities. The scale of individual tech deals was extraordinary: Alphabet’s $32 billion acquisition of cybersecurity firm Wiz, Palo Alto Networks’ $25 billion purchase of CyberArk, and a variety of large-ticket minority investments including Softbank’s $40 billion investment in OpenAI and Meta’s $14.3 billion investment in Scale AI.

The AI influence on technology dealmaking was pervasive. Almost half of strategic technology deal value for transactions exceeding $500 million came from either AI-native companies or deals that explicitly cited AI-related benefits in their strategic rationale. This represents a dramatic acceleration from previous years and reflects the growing consensus that AI capabilities cannot be built organically fast enough to remain competitive.

Beyond pure technology transactions, AI’s influence extended across sectors. According to Bain’s survey of more than 300 M&A executives, AI adoption for M&A processes more than doubled to 45% of practitioners. While sourcing and screening remain AI’s primary applications, more dealmakers are leveraging the technology for integration planning and execution. Perhaps most tellingly, one in five strategic dealmakers reported walking away from a deal because of the anticipated impact of AI on the target’s business model—highlighting how AI is transforming not just what companies buy, but what they choose not to buy. The OECD’s corporate governance research provides additional context on how regulatory frameworks are evolving to address AI-driven consolidation.

Global M&A Growth Across All Regions

The 2025 M&A rebound was genuinely global in scope. Deals for US targets powered overall growth and accounted for nearly half of total strategic deal value, reflecting the depth and dynamism of North American capital markets. Greater China, the second-largest market, led globally in deal count, driven by a robust domestic market that accounted for more than 80% of Greater China deal value.

Japan’s M&A market delivered perhaps the most dramatic transformation, with deal value doubling to become the third-largest globally while also increasing deal count by double digits. This reflected both structural reforms encouraging corporate restructuring and growing comfort among Japanese companies with M&A as a strategic tool. Europe, the Middle East, and Africa experienced strong value growth aided by megadeal activity, though the region’s overall deal count remained flat.

The advanced manufacturing and services sector was a major contributor to strategic M&A growth in 2025, with headline merger deals including Union Pacific and Norfolk Southern’s $88 billion combination and the Airbus-Leonardo-Thales arrangement to create a scale player in the growing European space sector. These transactions illustrate how M&A is being used to reshape industries far beyond the technology sector. For deal professionals monitoring cross-border trends, interactive analysis tools help visualize regional deal flow patterns in real time.

Megadeals Reshape the Corporate Landscape

Megadeals valued at greater than $5 billion fueled the M&A resurgence, representing more than 73% of the increase in deal value in 2025. The composition of these megadeals reveals important dynamics about the current dealmaking environment and raises questions about future value creation.

Infrequent acquirers—companies that have made fewer than 10 acquisitions over the past decade—accounted for approximately 59% of megadeals. Many of these transactions represented transformative bets, with deal values comprising 50% or more of the acquirer’s market capitalization. This combination of inexperience and outsized ambition gives seasoned M&A observers pause, as history shows that big-bet deals made by infrequent acquirers carry elevated execution risk.

Analysis of the largest deals from the last comparable M&A peak in 2021 reveals a stark bifurcation: some became outsized successes that transformed their acquirers, while others resulted in massive value destruction. The critical differentiator was not deal size but strategic clarity. Megadeals grounded in sound strategy and supported by rigorous integration planning can set transformative growth trajectories. Those made for less-strategic reasons—whether driven by FOMO, empire-building, or competitive anxiety—often become value traps that consume management bandwidth for years.

Scope Deals Dominate: Revenue Growth Over Cost Cutting

One of the defining themes of 2025 M&A activity was the decisive swing toward scope deals. In the first nine months of the year, 60% of deals valued at greater than $1 billion were categorized as scope transactions—the highest rate of scope dealmaking ever recorded. This represents a dramatic shift from 2024’s emphasis on scale consolidation driven by near-term cost synergies amid macroeconomic uncertainty.

Scope deals focus on entering new markets, acquiring new capabilities, accessing new customer segments, or obtaining new technologies to drive revenue growth. The shift toward scope dealmaking in 2025 reflects growing executive confidence in top-line-driven acquisition strategies and a recognition that in rapidly evolving industries, capabilities gaps cannot be closed through organic development alone.

Financial services and advanced manufacturing, sectors traditionally focused on scale-driven consolidation, both revealed growing appetite for scope deals targeting new markets and customer segments. Rocket Companies exemplified this trend through vertical integration, acquiring mortgage servicer Mr. Cooper Group and home search platform Redfin to create an integrated homeownership ecosystem. Research from Harvard Business Review supports the strategic rationale behind scope-driven dealmaking in periods of technological disruption.

Capital Allocation Shifts Away from M&A

Despite the robust headline M&A numbers, a deeper analysis reveals a counterintuitive trend: M&A has been losing share of corporate capital allocation for a decade, reaching a historic low of just 7% in 2025. Over the past ten years, S&P World Index companies have progressively redirected capital from acquisitions to other growth avenues, particularly capital expenditure and research and development spending.

The magnitude of non-M&A capital deployment is striking. In the first three quarters of 2025 alone, the Magnificent Seven technology companies combined invested almost $500 billion in capex and R&D. This massive commitment reflects the capital intensity of building AI infrastructure, data centers, semiconductor fabrication capacity, and energy systems required to power the next generation of computing.

For M&A executives, this capital allocation shift has profound implications. Boards are applying increasingly rigorous scrutiny to acquisition proposals, demanding clear evidence that M&A capital will generate returns superior to alternative deployments. This higher bar for deal ROI means companies need more robust due diligence processes and stronger conviction in value creation theses before committing capital to acquisitions rather than organic investment.

Tariffs, Trade, and Post-Globalization Effects

The specter of trade disruption loomed over M&A activity throughout 2025, beginning with the tariff announcements in April that temporarily slowed dealmaking. However, the pullback proved short-lived, and deal momentum among both corporate and PE buyers steadily gained throughout the remainder of the year.

Concerns that trade policy uncertainty would drive acquirers toward domestic-only strategies also proved largely unfounded. The rate of cross-border deals did not substantially change in 2025. When polled, less than half of M&A executives said trade restrictions impacted their overall plans, and 70% indicated that tariff policies would not affect their divestiture strategies.

However, early signals suggest that post-globalization dynamics will increasingly influence M&A patterns over time. Non-US companies now express lower appetite for US-based targets on balance, while US buyers show modestly increased preference for domestic acquisitions. The US-China dynamic is particularly notable: Starbucks announced the sale of a controlling stake in its China retail operations to Chinese investment firm Boyu Capital, while Western pharmaceutical companies pursue creative partnership structures to access China’s world-class drug pipeline without direct ownership. China’s share of global pharma licensing deals has doubled since 2020, demonstrating how M&A structures are adapting to geopolitical realities.

AI Transforms the M&A Process Itself

Beyond driving deal activity as an acquisition target, artificial intelligence is fundamentally transforming how M&A transactions are sourced, evaluated, and executed. According to Bain’s survey, AI adoption for M&A processes more than doubled in 2025, with 45% of practitioners now leveraging AI tools across the deal lifecycle.

AI’s applications in M&A have expanded significantly beyond initial use cases in deal sourcing and target screening. More dealmakers now rely on AI for integration planning and execution—historically one of the most challenging and labor-intensive phases of the M&A process. AI-powered tools are enabling faster synthesis of due diligence data rooms, more sophisticated financial modeling, and better prediction of integration risks and synergy realization timelines.

Perhaps most significantly, M&A executives cited the central role of strategy as the number-one reason for sustaining or increasing deal activity in 2025, with more than 85% reporting that they refreshed their M&A pipeline, pointing to shifts in technology and strategy as primary catalysts. The growing reliance on M&A for strategic transformation is evident: 40% of megadeals valued at more than $5 billion in the first 10 months of 2025 were classified as transformative, representing more than 50% of the acquirer’s market capitalization. For professionals analyzing these trends, Libertify’s interactive reports make complex M&A data accessible and engaging.

M&A Outlook: Risks and Opportunities for 2026

Looking ahead, the M&A landscape entering 2026 presents both compelling opportunities and significant challenges. The strategic imperative that drove the 2025 rebound—the need to acquire capabilities, enter new markets, and respond to AI disruption—shows no signs of abating. Deal pipelines remain robust, credit markets are supportive, and the buyer-seller gap on valuations has narrowed meaningfully from post-pandemic extremes.

However, several risk factors warrant close attention. The concentration of 2025’s value growth in megadeals raises questions about whether the recovery can broaden to benefit mid-market transactions. The persistently low share of capital allocated to M&A suggests that boards remain cautious about large acquisitions relative to organic investment. And the high proportion of megadeals made by infrequent acquirers introduces execution risk that could dampen enthusiasm if several high-profile deals disappoint.

For M&A practitioners, the lessons of 2025 are clear: strategic clarity is paramount, due diligence must be more rigorous than ever, and integration planning should begin well before deal close. Companies that approach M&A with disciplined processes, clear value creation theses, and realistic integration timelines will be best positioned to create sustainable value in an environment where the bar for deal ROI continues to rise. The organizations that succeed will be those that view M&A not as an end in itself but as one tool in a comprehensive strategic toolkit—deployed with precision, supported by data, and executed with operational excellence.