For a long time, diversification was based on a relatively simple logic: spreading one’s wealth across equities, bonds, and real estate.
This model worked for a long time in an environment shaped by:
low interest rates,
controlled inflation,
strong intervention from central banks,
and relatively stable correlations between asset classes.
But the context has changed profoundly.
Persistent inflation, geopolitical tensions, interest rate volatility, and global economic fragmentation have changed the way markets behave. In this environment, traditional diversification mechanisms sometimes show their limits.
Diversification remains essential. But the way we diversify must evolve.
1. Correlations between assets have changed
Traditional diversification was largely based on a simple logic: when equity markets went through a downturn, bonds tended to hold up better and absorb part of the portfolio’s volatility.
However, certain recent periods have shown that these assets can now decline simultaneously, especially in inflationary environments or during rapid interest rate increases.
The traditional “60/40” portfolio was therefore put under significant pressure in 2022. Vanguard emphasizes that this context does not necessarily mean the end of this model, but rather the need to adapt it to a different economic environment.
Source:https://investor.vanguard.com/investor-resources-education/news/higher-inflation-not-the-end-of-the-60-40-portfolio
This does not mean that diversification no longer works. It means that it can no longer rely solely on two traditional asset classes.
2. Diversifying does not simply mean increasing the number of holdings
Many investors believe they are diversified because they hold several funds or several stocks.
In reality, a large share of portfolios remains heavily exposed:
to the same sectors,
to the same economic drivers,
or to the same market risks.
Holding several highly correlated assets does not constitute true diversification.
A robust allocation must diversify:
asset classes,
geographic regions,
sources of return,
currencies,
and liquidity horizons.
3. Alternative assets are playing a more important role
In this environment, alternative assets are gradually taking on a more strategic role in certain wealth allocations.
This may include:
private equity,
private credit,
infrastructure,
decorrelated strategies,
specialized real estate,
structured products,
American permanent life insurance,
annuity contracts,
commodities.
The objective is not to replace traditional markets, but to add sources of return that are less dependent on classic stock market cycles.
BlackRock notes in its private markets analysis that institutional investors continue to increase their exposure to alternative assets as part of a diversification and long-term return strategy.
Source:https://www.blackrock.com/institutions/en-us/insights/thought-leadership/private-markets-outlook
However, these strategies require rigorous analysis:
liquidity,
investment horizon,
valuation,
and level of risk.
4. Geographic diversification is becoming essential
Economic cycles are becoming increasingly divergent across regions:
different monetary policies,
uneven growth,
geopolitical risks,
regulatory changes.
An allocation heavily concentrated in a single country or a single currency can create significant vulnerability.
For French-American investors, this reflection is particularly important:
wealth held in dollars,
future expenses potentially in euros,
international mobility,
cross-border taxation.
Geographic diversification is therefore not only about seeking performance. It also helps reduce certain structural risks.
5. Liquidity is once again a central issue
For several years, the low-rate environment pushed investors toward increasingly illiquid assets.
In a more volatile context, liquidity regains strategic value.
A balanced portfolio must be able to:
absorb unexpected events,
fund projects,
seize opportunities,
or withstand a period of market stress.
The search for yield must therefore not lead to locking up the entire wealth portfolio.
6. A wealth architecture must be designed as a global system
Modern diversification is no longer simply about spreading a portfolio across several investment vehicles.
It consists of building a wealth architecture capable of withstanding different scenarios:
inflation,
economic slowdown,
geopolitical crisis,
interest rate volatility,
currency fluctuations.
This requires thinking simultaneously about:
return,
risk,
liquidity,
taxation,
and holding period.
The objective is not to eliminate risk.
The objective is to prevent a single factor from weakening the entire wealth structure.
Conclusion
Diversification remains one of the fundamental principles of investing. But traditional models are no longer always sufficient in today’s environment.
Investors must now think more globally:
diversification of assets,
strategies,
currencies,
liquidity horizons,
and performance drivers.
Building resilient wealth is not about looking for the perfect solution.
It is about creating a balance capable of navigating different economic cycles.
Alexandre Quantin
Partner – USA France Financials™
Director – Investments & Wealth Management Advisor
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