Diversify, diversify, and diversify again.

If I had to give just one piece of advice to anyone looking to start investing, it would be this: diversify your investments.

However, to do it properly, you need to understand that there are different types of diversification, each applicable at different levels of your overall wealth.

In this article, we will explore them together.

Wealth Diversification

Diversification is a concept that is often associated exclusively with investing.

To be clear, having a well-diversified investment portfolio is absolutely essential.

However, before addressing the various forms of portfolio diversification, it is important to reflect on a topic that is often overlooked: the diversification of your overall net worth.

Your net worth is simply the sum of all your assets—meaning an inventory of everything you own—minus your liabilities, which include all personal debts such as a mortgage on your home or personal loans.

Any net worth can be broken down into four main categories:

• Financial assets, including cash and investments
• Real estate assets
• Business assets, if you are an owner or a partner in a company
• Alternative assets, which include valuable items such as artwork, fine wine, jewelry, collectibles in general, and cryptocurrencies

Each of these four components carries a specific weight within your overall net worth.

It is extremely important to know exactly how your wealth is currently distributed among these elements, in order to avoid imbalances that could expose you to significant risk.

It is likely that a substantial portion of your wealth is tied up in one or more properties.

In many ways, this is perfectly normal and understandable.

We both know how deeply Italians value real estate.

However, this does not mean that your entire wealth should be concentrated in property.

That would represent an excessive level of risk.

Even if your investment portfolio were perfectly diversified, having 90% of your net worth invested in real estate would clearly indicate poor overall wealth diversification.

The same reasoning applies if most of your wealth were tied up in jewelry or works of art.

You could be highly diversified within your financial investments, yet still have the majority of your wealth concentrated in physical assets traded in niche and less transparent markets compared to financial markets.

For this reason, it is essential to maintain the right balance among the assets that make up your net worth.

Now, let’s move on to the most well-known form of diversification: investment diversification.

Portfolio Diversification

Diversification means including different asset classes within an investment portfolio—asset classes that behave differently across economic cycles.

These asset classes are uncorrelated, meaning they tend to perform differently during the various phases that markets go through over time.

This represents the first and most fundamental level of portfolio diversification.

Rather than investing all of your financial wealth in a single asset class (for example, equities), diversification involves selecting asset classes that play different roles within the portfolio.

Equities, for instance, are a riskier and generally more volatile asset class, but they are also the primary engine of long-term returns in an investment portfolio.

Bonds, on the other hand—traditionally considered a lower-risk asset class—serve to reduce overall portfolio volatility and help preserve the gains generated by riskier assets.

Then there is gold, an asset class that is often overlooked today, yet plays an important role in diversification. Gold typically provides low correlation with traditional financial assets and has historically delivered solid performance during periods of systemic risk, as seen during the first wave of the COVID-19 pandemic.

Of course, these asset classes must be combined in different proportions to build a portfolio that reflects your risk profile and the time horizon associated with your investment goals.

This process of combining asset classes is known as asset allocation—the decision of how to distribute your capital among the various asset classes you have chosen to invest in.

Does this sound trivial? As if it were enough to allocate 20% to one asset and 80% to another, give it a quick stir, and call your portfolio complete?

That would be nice—but unfortunately, it doesn’t work that way.

As this chart shows, asset allocation is the single most important factor determining your long-term investment results.

Asset allocation matters far more than timing the market or picking individual financial products.

This is true both for better and for worse.

A well-designed, carefully managed, and thoughtfully constructed asset allocation can lead to strong results and solid long-term returns.

A mediocre, poorly planned, and emotionally driven asset allocation, on the other hand, will almost inevitably lead to mediocre performance.

Within each individual asset class, it is also possible to further diversify.

Asset classes are broad containers that attract capital from all over the world.
However, each asset class includes a virtually infinite number of securities available for investment.

For example, companies like Amazon or Apple belong to the U.S. equity asset class.
But buying just these two stocks is not enough to properly diversify and gain exposure to the entire U.S. stock market.

Even though these companies are global giants with enormous market capitalizations, they are not representative of the overall U.S. economy.

If your goal is to invest in the U.S. market, a far better option is to choose an ETF that tracks the S&P 500 — a widely used U.S. stock index representing 500 of the largest publicly traded American companies.

Diversification can be further enhanced by geography, currency, and economic sector.

The S&P 500, as mentioned, tracks the performance of 500 U.S. companies.
While the United States is currently the center of gravity of global financial markets, investing exclusively in the U.S. means giving up exposure to all other markets worldwide.

In practice, you would be betting that the U.S. market will continue to outperform every other investable market in the future — including European equities, emerging markets, and more.

Additionally, you would be taking on currency risk.
U.S. stocks are denominated in U.S. dollars, and unfavorable exchange rate movements can significantly reduce — or even completely wipe out — your returns.

For example, if you invest in assets denominated in U.S. dollars and the dollar weakens against the euro, your investment returns will shrink and may even turn into a net loss.

This is why it is essential to diversify across global markets, allocating capital in the right proportions.

You simply do not know whether the U.S. market will continue to dominate and deliver superior returns tomorrow, or whether it will gradually decline in favor of other economies.

Since this cannot be predicted, diversification helps reduce the specific risk associated with the performance of a single economy.

The same principle applies to economic sectors, such as energy, consumer discretionary, industrials, technology, financials, and many others.

The temptation is always to try to identify the next “winning” sector that could deliver exceptional returns.

As a result, investors are often pushed toward trendy investment funds with sky-high management fees, flashy names, and promises of “investing in the future”.

In reality, these funds underperform their benchmark market 99 times out of 100.

The intelligent investor, instead, calmly accepts that it is impossible to know which sector will perform best in the future — and therefore invests in all of them.

As the legendary John Bogle, founder of Vanguard and father of ETFs, famously said:

“Don’t look for the needle in the haystack. Buy the haystack.”

At this point, we have seen that diversification can be applied at many different levels.

Diversification can be applied across asset classes, across securities within the same asset class, by geographic area, by currency, and by economic sector.

However, there is one more practical application of diversification that helps reduce the risk of investing your money just before a major market downturn.

This is known as time diversification, or temporal diversification of investments.

By investing periodically in the market — both existing capital and new savings — you effectively reduce the probability of entering the market all at once at a moment that, in hindsight, turns out to be unfavorable.

Investing at regular, predefined intervals automatically solves one of the biggest dilemmas faced by many savers: the fear of investing today because a market crash might happen tomorrow.

As you can see, there are many ways to properly diversify an investment portfolio.
There are multiple levels at which diversification must be applied, but diversification itself is not a cure-all.

It is not a magic wand that will automatically help you reach your investment goals.

A well-diversified investment portfolio is useless if it is not aligned with a proper time horizon and a clear investment objective.

Having a diversified portfolio or net worth is certainly a good thing, but it tells us nothing about the most suitable asset allocation for you unless it is built around a specific numerical goal and a defined investment time horizon.

That is why investment portfolios represent only the final — though extremely important — step of Puzoy, our practical financial planning process.

Puzoy not only helps you build diversified portfolios tailored to your financial situation, but also ensures they are correctly aligned with your concrete life goals.

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