How Much Investment Diversification Is Right for You? (2024)

With the economy and markets getting more volatile and a lot of investors growing skittish, I’m starting to hear more talk about the importance of diversifying investments. I hear many people referring to diversification as the key to long-term investment survival and success.

But the more I discuss diversification with people, the more I realize that most of us haven’t put a lot of thought into the topic.

Yes, diversification reduces risk. There’s no argument there. In fact, that’s the single biggest goal and benefit of diversification—reducing exposure to risk.

But does that mean we should all diversify our investment portfolio? And if so, how much diversification is the right amount?

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How Much Investment Diversification Is Right for You? (1)

Finding the Sweet Spot of Diversification

Good investors and business owners think about diversification as an insurance policy.

Essentially, it is. It’s an insurance policy for your portfolio.

So, let’s replace “diversification” in the question above with “insurance.” Do we all need insurance? If so, how much is the right amount?

When we think of it in these terms, the answer is obviously, “It depends.”

Remember, just like with an insurance policy, there is one major downside to diversification: It’s not free.

Diversification will cost you money in terms of reduced returns. If I diversify my investments into five different asset classes, it’s unlikely they will all perform equally. Some will generate higher returns than others. And the lower-return asset classes will bring down the average returns that the higher-return asset classes provide.

But that’s the trade-off we make in order to reduce our overall risk. Just like we shell out cash every year for an insurance policy that we may or may not need, it protects us in case something DOES go wrong.

Related:Real Estate Is Crucial to Your Investment Portfolio: Here’s Why

How Much Investment Diversification Is Right for You? (2)

How Much Investment Diversification Is Right for You? (3)

How Much Investment Diversification Is Right for You? (4)

Determining When Diversification Is Necessary

Now that we’re thinking of diversification like an insurance policy, let’s consider when it’s needed and to what degree.

Diversification is necessary:

When we have other people depending on us, we can’t afford to subject them to the risk of losing everything.

Most of us think about life insurance when we’re married and have minor kids. But when it’s just us, there’s less concern about dying. This holds true in our business and investments, as well. If other people are depending on us to not allow our businesses to “die,” diversification is a lot more important.

When we’re knowledgeable and diligent about staying healthy, our risk is lower.

Health insurance is much less important for those who understand how to keep their body in good shape and actively work at it. If I understand the basics of nutrition and I work out every day, I may be able to save some money by having a high-deductible health insurance policy—or perhaps no policy at all.

Likewise, if we understand what makes a good/bad investment and we work hard to keep our investments on track, diversification is much less important. Our risk is inherently lower.

When we get older, we need to be more cautious.

Someone who loses everything at 25 has decades to rebuild their portfolio and plan for retirement. Someone who is 55 doesn’t have the same luxury. As we age, diversification becomes more important simply because we don’t have the time to rebuild should we lose it all.

When we have less control, we need more protection.

Firefighters, police officers, and soldiers all face risks that are out of their control. For that reason, they better make sure they’re paid up on their insurance. On the other hand, accountants, computer programmers, and cashiers have a lot more control over the risks to which they are exposed, so insurance is less of a necessity.

Likewise, investors who have more control over their investments are less in need of diversification. If you invest in the stock market, where you have essentially no say in the decisions made by the companies in which you invest, you’re probably going to want your portfolio to be highly diversified. But if you self-manage rentals, you may have enough insight and control over your investments that diversification isn’t needed.

Each of us needs to evaluate our personal and financial situations, our investments, and our businesses individually in order to decide what amount of diversification is right for us. Understanding that diversification is simply an insurance policy for our portfolio can provide an appropriate framework to help determine the right trade-off between risk and reward.

What’s your diversification strategy? And why?

Comment below!

Note By BiggerPockets: These are opinions written by the author and do not necessarily represent the opinions of BiggerPockets.

How Much Investment Diversification Is Right for You? (2024)

FAQs

How much diversification is enough? ›

A widely accepted rule of thumb is that it takes around 20 to 30 different companies to adequately diversify your stock portfolio. However, there is no clear consensus on this number.

What is the 5% rule for diversification? ›

A high-level rule of thumb for avoid high levels of concentration is that a single stock should not make up no more than 5% of the overall portfolio. This is known as the 5% rule of diversification.

What is the rule of 42 diversification? ›

One of the key rules within my unique Income Method is the Rule of 42 - holding at least 42 income-generating investments that enable you to have reduced risk from any individual holding.

What is the ideal diversification ratio? ›

First, set aside enough money in cash and income investments to handle emergencies and near-term goals. Next, use the following rule of thumb: Subtract your age from 100 and put the resulting percentage in stocks; the rest in bonds. In other words, if you're 20 years old, put 80% of your assets in stocks; 20% in bonds.

What is a good diversification? ›

A diversified portfolio should have a broad mix of investments. For years, many financial advisors recommended building a 60/40 portfolio, allocating 60% of capital to stocks and 40% to fixed-income investments such as bonds. Meanwhile, others have argued for more stock exposure, especially for younger investors.

What is an example of too much diversification? ›

For example, an investor who owns an S&P 500 index fund -- which holds 500 of the largest U.S. companies -- and an ETF of technology stock focused on the NASDAQ Composite Index has over-diversified their portfolio.

What are the three 3 factors to consider in diversification? ›

There are certain factors that you must look into before proceeding with the diversification strategy;
  • Financial sense. Many people believe in taking more significant risks to achieve higher returns and hence step into diversification. ...
  • Core competencies of the firm. ...
  • Evaluating the assets. ...
  • The right expertise and resources.

What is a good example of diversification? ›

Here are some examples of business diversification strategies: Product diversification: A company that primarily sells clothing might expand into selling home goods and accessories. Market diversification: A company that sells only in the domestic market might expand into international markets.

What does Warren Buffett say about diversification? ›

My biggest investing mistake is encapsulated in a Buffett quote that many investors take too literally. "Diversification is protection against ignorance," Buffett said. "It makes little sense if you know what you are doing."

What is the 75-5-10 rule for diversified funds? ›

Diversified management investment companies have assets that fall within the 75-5-10 rule. A 75-5-10 diversified management investment company will have 75% of its assets in other issuers and cash, no more than 5% of assets in any one company, and no more than 10% ownership of any company's outstanding voting stock.

Does the rule of 72 really work? ›

The Rule of 72 is reasonably accurate for low rates of return. The chart below compares the numbers given by the Rule of 72 and the actual number of years it takes an investment to double. Notice that although it gives an estimate, the Rule of 72 is less precise as rates of return increase.

What is the 25 rule of diversification? ›

The 20/25 rule for mutual funds is a simple and effective way to diversify your portfolio and reduce your risk. It states that you should invest in no more than 20 mutual funds and no more than 25% of your portfolio in any one fund.

What is the right amount of diversification? ›

Make sure you keep yourself to a portfolio that's manageable. There's no sense in investing in 100 different vehicles when you really don't have the time or resources to keep up. Try to limit yourself to about 20 to 30 different investments.

What is the best investment ratio? ›

Debt-to-equity, or D/E, ratio

The calculation is simple, and the figures for a firm's total debt and shareholders' equity can be found on the consolidated balance sheet. Generally, investors prefer the debt-to-equity (D/E) ratio to be less than 1. A ratio of 2 or higher might be interpreted as carrying more risk.

What is the best portfolio ratio? ›

Many financial advisors recommend a 60/40 asset allocation between stocks and fixed income to take advantage of growth while keeping up your defenses.

What is the 75 5 10 diversification rule? ›

Diversified management investment companies have assets that fall within the 75-5-10 rule. A 75-5-10 diversified management investment company will have 75% of its assets in other issuers and cash, no more than 5% of assets in any one company, and no more than 10% ownership of any company's outstanding voting stock.

What is the 5 40 diversification rule? ›

No single asset can represent more than 10% of the fund's assets; holdings of more than 5% cannot in aggregate exceed 40% of the fund's assets. This is known as the "5/10/40" rule.

What is the 5 50 diversification rule? ›

Under the 50% test, at least 50% of the value of a RIC's total assets must consist of cash and cash items, U.S. government securities, securities of other regulated investment companies, and securities of other issuers as to which (a) the RIC has not invested more than 5% of the value of its total assets in securities ...

Is 20 ETFs too much? ›

Holding too many ETFs in your portfolio introduces inefficiencies that in the long term will have a detrimental impact on the risk/reward profile of your portfolio. For most personal investors, an optimal number of ETFs to hold would be 5 to 10 across asset classes, geographies, and other characteristics.

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