Home Insights Asset allocation Still exceptional: Why U.S. equity remains a cornerstone of retirement portfolios

In recent months, headlines have raised doubts about the future leadership of U.S. equity markets. Slower GDP growth, rising national debt, and geopolitical tensions have led some investors to explore opportunities abroad . While global diversification remains a cornerstone of a prudent investment strategy, the argument for U.S. exceptionalism remains compelling - despite the chyrons and news flashes. Driven by enduring fundamentals that support long-term growth, U.S. equities should continue to hold a significant weight in retirement portfolios.

Given the whirlwind of media surrounding the U.S. tariff-driven policies and rising global tensions, investing in international equities has generated significant excitement year-to-date (YTD), driven by several key factors:

  1. In several global economies, after years of fiscal tightening, recent fiscal loosening has paved the way for increased government spending, which fuels potential economic growth. This shift has attracted investors seeking to capitalize on the promise of revitalized markets.
  2. International equities offered attractive valuations compared to their U.S. counterparts . However, as demand surged, valuations beyond the U.S. have climbed to decades-long highs, challenging their earlier appeal.
  3. A weaker U.S. dollar has played a significant role in the outperformance of international equities. A falling dollar increases the value of international investments when converted back into USD, providing a tailwind for U.S. investors. The ICE U.S. Dollar Index (DXY) has decreased approximately 9% YTD, contributing to this trend.

Another notable trend is the waning demand for U.S. dollar-based assets, raising questions about whether this is a short-term fluctuation or the start of a longer-term shift. Investors are particularly excited about the potential impacts of forthcoming fiscal policies and the rapid advancements in AI innovation, especially in China. These factors have created a crowded trade, pushing AI’s international equity valuations skyward, often without the fundamental support typically required for such price levels. To sustain this momentum, firms outside the U.S. must show tangible growth and performance metrics that align with heightened expectations and substantial capital inflows into these markets.

This isn’t the first time U.S. leadership was in doubt

Historically, periods of skepticism regarding U.S. equity performance were often followed by renewed outperformance. Consider the following instances:

  • Post-Global Financial Crisis (2009–2011): After the 2008 crisis, many questioned whether U.S. equities could recover. Yet, a combination of aggressive monetary and fiscal stimulus led to a remarkable rebound, with the S&P 500 gaining over 400% by 2021.
  • Early 2010s Eurozone recovery: As Europe stabilized, some investors shifted their interest to European equities, believing they would outperform the U.S. However, the tech sector’s resurgence in the U.S. economy propelled American stocks ahead.
  • Post-Pandemic rotations into China/EM: Following the onset of COVID-19, there was a surge of interest in emerging markets, particularly China. Nevertheless, U.S. companies demonstrated remarkable resilience, innovation and adaptability, leading to a sharp recovery in equity prices.

In most instances, U.S. equities surpassed their global peers (India stands out, outperforming the U.S. post-COVID). Still, robust earnings growth, innovation, and consumer strength have fueled the U.S.'s outperformance. For retirement investors, responding to changing narratives instead of concentrating on fundamental factors has frequently led to missed chances for long-term compounding. Notably, the U.S. is one of the few nations that has returned to its pre-pandemic growth trajectory.

According to the World Bank, between 2008 and 2024, EU GDP grew by 18.6% (from $16.37 trillion to $19.42 trillion), while U.S. GDP rose by 97.6% (from $14.77 trillion to $29.18 trillion). The UK’s GDP increased by 24.2%. In 2024, EU GDP was 12.5% of U.S. GDP, down from 17% in 2008.

Why U.S. exceptionalism endures

Despite the shifting market narratives, several key attributes underpin the ongoing case for U.S. exceptionalism:

Rule of law & governance: The U.S. benefits from a robust legal framework that protects investors and ensures corporate transparency. This stability enhances investor confidence and contributes to a more predictable investment environment.

Capital market depth: The U.S. capital markets offer unparalleled liquidity, diversification, and access to unmatched asset class diversity. This helps mitigate risks and enhance potential returns, making them attractive for domestic and international investors.

Innovation engine: The U.S. leads the world in technological innovation, and Forbes reports that 39 of the 100 largest technology firms in the world by market cap are in the U.S., versus only 15 in Europe and 11 in China (including Hong Kong). This dominance drives economic growth and creates new investment opportunities, fostering long-term wealth creation.

Adaptable consumer base: The U.S. consumer base is characterized by adaptability and resilience. A strong domestic market is a critical driver of economic growth, providing a stable foundation for companies to thrive and innovate.

Favorable demographics: A younger workforce positions the U.S. for continued expansion relative to many developed market peers. The U.S. labor market exhibits more favorable demographics than many developed peers. These attributes collectively support the case for long-term investment in U.S. equities, which is critical for retirement investors seeking to build wealth over decades.

What could undermine U.S. leadership?

Despite the strong case for U.S. equities, it’s essential to acknowledge potential risks that could undermine their leadership position:

  • Political or fiscal instability: The erosion of trust in the U.S. government's governance and fiscal management is a potentially consequential consideration that has increased market uncertainty, impacting investor confidence.
  • Erosion of U.S. Dollar reserve status: While extremely unlikely, a significant decline in the dollar’s standing as the world’s primary reserve currency could lead to increased volatility and reduced demand for U.S. assets. In the meantime, pressure from other sources, such as tariffs and sinking confidence in the U.S., may gradually erode the dollar’s preeminent position.
  • Persistent weakness in productivity: A sustained decline in productivity growth could hinder economic expansion and corporate profitability, affecting equity performance.

While these risks are noteworthy, they are long-term considerations . Until the fundamental landscape shifts, it would be premature for retirement investors to reposition their portfolios away from the strengths inherent in U.S. equities.

Opportunities emerge out of innovation, not cycles

Our overweight U.S. equities position in target date portfolios reflects conviction, not complacency. For retirement investors, U.S. equities continue to offer the innovation, resilience, and reliability needed to create the opportunities that support financial outcomes over decades, not just temporary market cycles. While global diversification remains a critical component of a well-diversified investment strategy, an allocation to U.S. equities should remain the foundation of any retirement portfolio . Investing with a focus on fundamentals rather than narratives will enable investors to capitalize on the enduring strength of U.S. markets, ensuring a more secure financial future.

Asset allocation
Disclosure

For Public Distribution in the U.S. For Institutional, Professional, Qualified and/or Wholesale Investor Use Only in other Permitted Jurisdictions as defined by local laws and regulations.

Risk Considerations
Past performance is no guarantee of future results. Investing involves risk, including possible loss of principal invested. Equity markets are subject to many factors, including economic conditions, government regulations, market sentiment, local and international political events, and environmental and technological issues that may impact return and volatility. International investing involves greater risks such as currency fluctuations, political/social instability, and differing accounting standards. Asset allocation and diversification do not ensure a profit or protect against a loss.

Important information
Subject to any contrary provisions of applicable law, the investment manager and its affiliates, and their officers, directors, employees, agents, disclaim any express or implied warranty of reliability or accuracy and any responsibility arising in any way (including by reason of negligence) for errors or omissions in the information or data provided. All figures shown in this document are in U.S. dollars unless otherwise noted.

This material may contain ‘forward looking’ information that is not purely historical in nature. Such information may include, among other things, projections and forecasts. There is no guarantee that any forecasts made will come to pass. Reliance upon information in this material is at the sole discretion of the reader.

This material is not intended for distribution to or use by any person or entity in any jurisdiction or country where such distribution or use would be contrary to local law or regulation.

This document is intended for use in:

  • The United States by Principal Global Investors, LLC, which is regulated by the U.S. Securities and Exchange Commission.
  • Europe by Principal Global Investors (Ireland) Limited, 70 Sir John Rogerson’s Quay, Dublin 2, D02 R296, Ireland. Principal Global Investors (Ireland) Limited is regulated by the Central Bank of Ireland. Clients that do not directly contract with Principal Global Investors (Europe) Limited (“PGIE”) or Principal Global Investors (Ireland) Limited (“PGII”) will not benefit from the protections offered by the rules and regulations of the Financial Conduct Authority or the Central Bank of Ireland, including those enacted under MiFID II. Further, where clients do contract with PGIE or PGII, PGIE or PGII may delegate management authority to affiliates that are not authorized and regulated within Europe and in any such case, the client may not benefit from all protections offered by the rules and regulations of the Financial Conduct Authority, or the Central Bank of Ireland. In Europe, this document is directed exclusively at Professional Clients and Eligible Counterparties and should not be relied upon by Retail Clients (all as defined by the MiFID).
  • United Kingdom by Principal Global Investors (Europe) Limited, Level 1, 1 Wood Street, London, EC2V 7 JB, registered in England, No. 03819986, which is authorized and regulated by the Financial Conduct Authority (“FCA”).
  • This document is marketing material and is issued in Switzerland by Principal Global Investors (Switzerland) GmbH.
  • United Arab Emirates by Principal Investor Management (DIFC) Limited, an entity registered in the Dubai International Financial Centre and authorized by the Dubai Financial Services Authority as an Authorised Firm, in its capacity as distributor / promoter of the products and services of Principal Asset Management. This document is delivered on an individual basis to the recipient and should not be passed on or otherwise distributed by the recipient to any other person or organisation.
  • Singapore by Principal Global Investors (Singapore) Limited (ACRA Reg. No.199603735H), which is regulated by the Monetary Authority of Singapore and is directed exclusively at institutional investors as defined by the Securities and Futures Act 2001. This advertisement or publication has not been reviewed by the Monetary Authority of Singapore.
  • Australia by Principal Global Investors (Australia) Limited (ABN 45 102 488 068, AFS Licence No. 225385), which is regulated by the Australian Securities and Investments Commission and is only directed at wholesale clients as defined under Corporations Act 2001.

Hong Kong SAR by Principal Asset Management Company (Asia) Limited, which is regulated by the Securities and Futures Commission. This document has not been reviewed by the Securities and Futures Commission. This document may only be distributed, circulated or issued to persons who are Professional Investors under the Securities and Futures Ordinance and any rules made under that Ordinance or as otherwise permitted by that Ordinance.

Other APAC Countries/Jurisdictions. This material is issued for Institutional Investors only (or professional/sophisticated/qualified investors, as such term may apply in local jurisdictions) and is delivered on an individual basis to the recipient and should not be passed on, used by any person or entity in any jurisdiction or country where such distribution or use would be contrary to local law or regulation.

Principal Global Investors, LLC (PGI) is registered with the U.S. Commodity Futures Trading Commission (CFTC) as a commodity trading advisor (CTA), a commodity pool operator (CPO) and is a member of the National Futures Association (NFA). PGI advises qualified eligible persons (QEPs) under CFTC Regulation 4.7.

Principal Asset Management is a trade name of Principal Global Investors, LLC. Principal Funds, Inc. is distributed by Principal Funds Distributor, Inc.

© 2025 Principal Financial Services, Inc. Principal®, Principal Financial Group®, Principal Asset Management, and Principal and the logomark design are registered trademarks and service marks of Principal Financial Services, Inc., a Principal Financial Group company, in various countries around the world and may be used only with the permission of Principal Financial Services, Inc.

4705150

About the author