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From AI to Infrastructure: The 10 Investment Themes Defining the Next Five Years

Published March 10, 2025

Christopher Gannatti, CFA
Christopher Gannatti, CFA

Global Head of Research

Key Takeaways

  • AI is no longer just a disruptor but a defining force across industries, forcing companies to integrate or risk obsolescence.
  • Global investment themes are shifting toward infrastructure, cybersecurity and energy expansion as demand outpaces supply in key sectors.
  • Geopolitical realignment, shifting demographics and the rise of thematic investing are reshaping markets, presenting both challenges and unprecedented opportunities for investors.

The 2020s began with historically low interest rates, but the second half of the decade is shaping up very differently—equity markets are soaring, bond yields have reached 15-year highs, and AI is transforming industries at a breathtaking pace. We are living through one of the most significant shifts in economic history, where thematic investing is no longer just a niche strategy; it’s the macro narrative itself. Based on insights from our conversation with Haim Israel, Head of Thematic Investing at Bank of America Merrill Lynch, here are the 10 defining forces that will shape markets in the coming years.

1. Technology Is Eating the World

AI is no longer hype—it’s reality. It’s automating decision-making, transforming industries from finance to biotech and redefining productivity. Every company now faces a simple binary: integrate AI or risk obsolescence. The AI revolution isn’t on the horizon; it’s here, and companies that fail to adapt may not survive the decade.

2. Peak Monopoly: The Magnificent Seven and Beyond

Tech giants have amassed unprecedented market power, consolidating data, talent and infrastructure at an accelerating rate. While politicians debate antitrust measures, the reality is clear: AI is making these companies more entrenched, not less. The concentration of capital in a few firms presents both risk and opportunity for investors navigating the balance between dominance and regulatory backlash.

3. Digital Insecurity: The New Age of Cyber Threats

The “death” of privacy isn’t just a concept—it’s a reality. AI has supercharged cybercrime, making deepfakes and automated attacks more dangerous than ever. The cybersecurity industry will be a critical battleground, and investments in defense technologies will skyrocket. In a world where trust is fragile, protecting digital assets will become just as important as growing them.

4. More! The Insatiable Demand for Resources

AI isn’t just software—it requires an immense physical infrastructure. Data centers, energy grids, semiconductors and raw materials will be pushed to their limits. The world is shifting from an “energy transition” mindset to an “energy addition” reality—demand is growing too fast for clean energy alone to keep up. Expect nuclear power, superconductors and novel materials to gain increasing investor attention.

5. Rebuilding Everything: The Infrastructure Boom

Nearly $94 trillion will be needed by 2040 to rebuild and expand global infrastructure. From smart cities to energy grids, governments and private capital will be forced to collaborate on massive projects. Investors should prepare for a structural shift where infrastructure—not just technology—becomes one of the dominant investment themes.

6. The End of “ABB”: The Shift in Government Spending

The era of government fiscal excess is waning, and policy makers are being forced into hard choices. The long-standing “Anything but Bonds” (ABB) investment strategy will be challenged as sovereign debt sustainability takes center stage. Fixed income markets, once sidelined, may soon become one of the most interesting asset classes again.

7. Populism and the Decline of Globalization

Globalization is slowing, and nationalism is rising. In 2024, 26 of 32 elections saw populist victories, signaling a shift toward protectionist policies, controlled immigration and economic self-reliance. This new political reality is reshaping trade, supply chains and cross-border capital flows. Investors can no longer assume that globalization is an unstoppable force—it’s now a variable.

8. War & Peace: The Geopolitical Realignment

Trade wars have morphed into tech wars. The AI arms race, semiconductor control and energy independence are the new battlegrounds of global conflict. Defense budgets are increasing, reshoring is accelerating, and strategic alliances are shifting. Investors must track geopolitical developments as closely as they track earnings reports.

9. Rise of the Zoomers and Boomers: The Wealth Shift

By 2030, U.S. boomers will hold nearly 80% of the GDP, while Gen Z and millennials will finally start seeing wealth transfer accelerate. The financial behaviors of these generations—where and how they invest, spend and save—will shape real estate, financial markets and consumer industries for decades.

10. Health Tech and the New Wealth: The Biotech Revolution

Drug discovery is no longer a decade-long process. AI is compressing timelines from years to months, with breakthroughs like AlphaFold generating new treatments at an unprecedented pace. While regulation still lags behind innovation, the intersection of AI and biotech is poised to redefine longevity, disease treatment and health care economics.

Conclusion: Positioning for the Future

The next five years will be defined by AI dominance, geopolitical tensions, infrastructure overhauls and shifting economic power. Thematic investing is no longer about identifying trends—it’s about understanding how macro and micro forces are converging. Risks remain, from cybersecurity threats to fiscal tightening, but those who align their strategies with these emerging megatrends will be best positioned for the future. We are moving from a world of scarcity to a world of abundance—and those who see the shift early will benefit the most.

Listen to the full conversation here or below.

About the contributor

Christopher Gannatti, CFA
Christopher Gannatti, CFA

Global Head of Research

Christopher Gannatti began at WisdomTree as a Research Analyst in December 2010, working directly with Jeremy Schwartz, CFA®, Director of Research. In January of 2014, he was promoted to Associate Director of Research where he was responsible to lead different groups of analysts and strategists within the broader Research team at WisdomTree. In February of 2018, Christopher was promoted to Head of Research, Europe, where he was based out of WisdomTree’s London office and was responsible for the full WisdomTree research effort within the European market, as well as supporting the UCITs platform globally. In November 2021, Christopher was promoted to Global Head of Research, now responsible for numerous communications on investment strategy globally, particularly in the thematic equity space. Christopher came to WisdomTree from Lord Abbett, where he worked for four and a half years as a Regional Consultant. He received his MBA in Quantitative Finance, Accounting, and Economics from NYU’s Stern School of Business in 2010, and he received his bachelor’s degree from Colgate University in Economics in 2006. Christopher is a holder of the Chartered Financial Analyst Designation.

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