THE ALTERNATIVE VIEW:
The Tariff Tantrum Was Just the Start: Why Diversification Still Matters
Reassessing a Core Principle in a New Market Regime
By Rick Lake | Founder, Narrative Alpha
May 27, 2025
Since early 2022, U.S. equities have posted negative monthly returns 16 times. In all but two of those months, bonds also declined. This breakdown of the traditional 60/40 portfolio has prompted many advisors and investors to question whether diversification still works.
They’re right to ask. The current environment is defined by heightened volatility, shifting policies, geopolitical shocks, and unpredictable moves in inflation, interest rates, and currencies. The assumptions that guided past asset allocations are being tested.
In this context, diversification—when executed with care—remains essential. It’s not just about spreading risk. It’s about building resilient portfolios designed to weather a wide range of market regimes while supporting long-term goals.
Today’s Markets Demand a Fresh Look
Diversification has long offered a disciplined framework for managing uncertainty. The aim is to reduce volatility and the severity of drawdowns, and to improve the consistency of returns.
Yet in recent years, traditional diversification—especially the equity/bond mix—has struggled. With macro volatility rising, equity leadership narrowing, and correlations shifting unpredictably, a more nuanced approach is required.
This isn’t theoretical. The “Tariff Tantrum”—a sharp selloff sparked by rising trade tensions—was a vivid example of how quickly markets can change. Such events compel advisors and investors to revisit portfolio construction.
Four Timeless Advantages of Diversification
1. The Only “Free Lunch” in Investing
Diversification has long been called the only “free lunch” in investing—a phrase attributed to Nobel Laureate Harry Markowitz. In his seminal 1952 paper Portfolio Selection, Markowitz demonstrated that investors can combine assets with imperfect correlations to reduce overall risk without necessarily reducing return.
“Diversification is both observed and sensible… A rule of behavior which does not imply the superiority of diversification must be rejected.” — Harry Markowitz1
This insight remains foundational. As Markowitz later reflected: “Investors diversify because they are concerned with risk as well as return… It is natural to assume that investors selected from the set of optimal risk-return combinations.”2
2. Downside Risk Mitigation
Diversification may not prevent losses, but it can lessen their impact. Historically, well-diversified portfolios have experienced smaller drawdowns and quicker recoveries during market stress.
3. Enhanced Risk-Adjusted Returns
By lowering volatility, diversification can improve a portfolio’s Sharpe ratio and deliver a more efficient risk-return profile. This matters even more in a climate of lower equity return expectations and higher uncertainty. Still, low correlation alone isn’t enough—asset selection and weighting must be deliberate.
4. Improved Access and Implementation
ETFs, model portfolios, and alternative investment platforms now allow broader access to asset classes once limited to institutions or ultra-high-net-worth investors.
Four Common Criticisms of Diversification
1. Underperformance During Bull Markets
Diversified portfolios often lag concentrated equity benchmarks in strong bull markets. This can lead to performance regret—especially when gains are driven by a narrow group of high-performing stocks. Advisors may face pressure to justify diversification when clients see headline-grabbing returns from momentum-driven strategies.
Markowitz would remind such investors to maintain discipline through market cycles and to distinguish “investment…from speculative behavior.”
2. Limited Cushion in Recent Bear Markets
Traditional diversifiers, especially core fixed income, have provided limited downside protection in recent drawdowns. The correlation between stocks and bonds has turned positive—a common phenomenon in periods of elevated inflation and rising rates—highlighting the limits of conventional diversification.
3. Over-Diversification and Portfolio Complexity
More isn’t always better. Without intentional design, portfolios can become overly complex or contain overlapping exposures, creating the illusion of diversification while leaving key risks intact.
Advisors must also distinguish between hedges and diversifiers, recognizing that their effectiveness varies across cycles. For example, gold or volatility strategies may help in one downturn but falter in another. So-called “flight to safety” assets like the dollar or Treasuries are not universally reliable.
Effective portfolios may need a mix of “first responders” (such as tail-risk hedges) and “second responders” (like managed futures) that perform as dislocations persist.3 Even less liquid diversifiers—such as private credit or insurance-linked strategies—require close evaluation.
4. Divergence Between Perception and Outcome
Diversification is a long-term discipline—but client expectations are often short-term. When sound diversified strategies lag aggressive benchmarks, investors may lose confidence and abandon them at the worst possible time.
Ultimately, one of the most powerful hedges is investor understanding—grounded in strong advisor communication and planning.
When Diversification Works: A Practical Case Study
A Quantitative Perspective
An examination of correlations across major asset classes over the past 25 years reveals that three exhibited near-zero, long-term correlation to equities: U.S. bonds, gold, and trend-following strategies (managed futures). These became the basis for a simple, equal-weighted portfolio model and case study.
Other assets—like commodities, REITs, private equity, leveraged loans, and hedge funds—were more correlated to equities, offering less diversification benefit.
Uncorrelated Assets: The 4-Asset Portfolio
- Stocks: S&P 500 TR Index
- Bonds: Bloomberg U.S. Aggregate Bond TR Index
- Trend Following: SG Trend Index
- Gold: Spot Price
While short-term relationships may shift—such as the recent increase in stock/bond correlation—these four asset classes have historically exhibited low average correlations over a longer time period. This reinforces the value of combining complementary exposures.
Performance Through Time: What the Data Shows
Each asset brings distinct characteristics:
- Equities: Strong long-term returns, high volatility
- Bonds: Stability, but vulnerable to inflation
- Gold: Long-term appreciation, inconsistent returns
- Trend-following: Effective during persistent dislocations, but regime-sensitive
When combined in an equal-weighted, annually rebalanced portfolio, the result is compelling: equity-like returns with far lower volatility.
Drawdowns: A Clear Differentiator
Perhaps most notably, the diversified portfolio experienced significantly lower drawdowns:
- The S&P 500 fell over 50%
- Gold declined more than 40%
- The 4-asset portfolio’s worst drawdown was limited to roughly 12%
Sharpe Ratios Tell the Story
While bonds had the highest Sharpe ratio individually, the 4-asset blend delivered the best overall risk-adjusted performance—demonstrating the structural benefit of combining low-correlation return streams.
Finding the Sweet Spot
Each asset occupies a different position on the risk-return map. Together, the blend moves closer to the symmetry line—where risk and return find equilibrium—providing the striking benefit of equity-like returns with meaningfully lower volatility.
Rolling Returns Confirm the Pattern
Over rolling five-year periods, equities show wide variance in both returns and volatility. The diversified portfolio offers a steadier experience, reinforcing its value as a long-term strategy.
Implications for Advisors: Applying the Lessons
- Reframe Expectations
Diversification isn’t about outperforming every year. It’s about improving outcomes over time. - Move Beyond 60/40
Expanding the toolkit is essential in today’s market environment. - Tailor to the Client
Diversification should reflect client-specific goals, time horizons, and behavioral risk profiles. - Prioritize Long-Term Resilience
Better client outcomes depend on reducing drawdowns and maintaining consistency.
Conclusion: Diversification for a New Era
Diversification remains vital—but it must be applied with greater care. The old assumptions are fading. A modern approach calls for broader tools and a deeper understanding of how asset classes behave across regimes.
The case study shows what still works: combining uncorrelated, return-generating assets can produce better outcomes. It’s not a fad. It’s not a theory.
It’s math—and it still works.
Rick Lake writes and speaks about alternative investing and digital assets. Learn more at his website: www.ricklake.com. Thanks to Bill Marr and Chris Keenan at Welton Investment Partners for their collaboration on this article.
Disclaimer
This content is for informational and educational purposes only and is not investment advice or a recommendation to buy, sell, or hold any security or strategy. The views expressed are the author’s and do not necessarily reflect those of any firm or contributors. Information is believed to be reliable at the time of writing but is not guaranteed to be accurate or complete.
Past performance is not indicative of future results. All investments involve risk and may not be suitable for all investors. Alternative investments may entail a significant risk of loss, including the potential for total loss, and may not be appropriate for every portfolio.
Financial professionals must perform their own due diligence and consider each client’s goals, risk tolerance, and financial circumstances. This content does not constitute legal, tax, or accounting advice.
Index Definitions
S&P 500 TR Index—An unmanaged, capitalization-weighted index of the common stocks of 500 widely held US companies. Bloomberg U.S. Aggregate Bond TR Index—An unmanaged index of fixed rate debt securities rated investment grade or higher. SG Trend Index—An equal-weighted index that tracks the performance of a pool of trend-following hedge fund managers, specifically those who use trend-following methodologies. Gold Spot Price—The current purchase price of a troy ounce of the precious metal for immediate delivery. Indices do not include fees or expenses. Direct investment in an index is not possible.
Charts and Data: Welton Investment Partners
Hypothetical Performance
Performance above for the 4-asset portfolio is hypothetical and does not represent any actual portfolio. Hypothetical performance does not reflect management fees, trading expenses, or operational costs, which would have reduced returns. It is for illustration only and does not reflect the risks of managing assets in actual market environments. It is not a guarantee of future results and should not be relied upon as an indication of how any portfolio will perform. Hypothetical results are inherently limited. They rely on historical data and assumptions that may not reflect future conditions. No representation is made that any account will achieve results similar to those shown.
Footnotes
[1] Harry Markowitz, “Portfolio Selection”, The Journal of Finance, Vol. 7, No. 1. (March 1952), pp. 77-91[2] “Harry M. Markowitz Biographical”, The Nobel Prize, 1990[3] Ryan Lobdell, Jason Josephiac, and Brian Dana, “Risk Mitigating Strategies (RMS) Framework”, Maketa Investment Group—Whitepaper, March 2023
The views and opinions expressed in this article are solely those of the author and do not necessarily reflect the position of The Truth About Your Future or its affiliates. This content is provided for educational and informational purposes only and does not constitute investment, financial, legal, tax, or accounting advice, nor an offer, solicitation, or recommendation to buy or sell any security or other asset. Information is current as of the date of publication and may become outdated; no representation is made as to its accuracy or completeness. Publication does not constitute an endorsement of the author, the author’s firm, or any product or service referenced, and the author may hold positions in the assets discussed. Readers should consult their own qualified professionals before making any financial decisions.