Should I Diversify My Index Funds? — Avantax® Wealth Management (2024)

Consistent and responsible investing is all about diversity. Unless you’re the kind of person who likes to live dangerously – very dangerously – you always want to make sure your investments have a level of variation that protects you from market volatility. This is where index funds can be useful. Known for their inherent diversity, an index fund contains a mix of stocks and bonds that can largely be left alone to grow. But is that inherent versatility really enough? Should investors who rely on index funds look into more deeply diversifying their accounts? Is there a point where diversification becomes redundant?

What’s An Index Fund?

Index funds are a group of mutual funds that are designed to track a specific index, like the S&P 500. Other popular index funds include the Russell 2000, which tracks the bottom 2,000 stocks in the Russell 3000 index, and the Vanguard Total Stock Market Index, which follows small, mid-cap and large-cap US stocks. Index funds are popular because they often have low fees and offer a variety of stocks and bonds. Because they track an index passively, they don’t require the overhead and management that other funds do. One index fund can hold a few hundred or even a few thousand companies, so investors are fairly diversified when they choose an index. Warren Buffett once famously won a bet against a hedge fund management firm to see if his index fund could beat their actively managed funds. Buffett won the bet, proving the value of index funds and calling into question the importance of micro-managing investments. But despite their prominence (and Buffett’s approval), index funds are not a one-size-fits-all option. They’re perfect for the low-key investor who doesn’t mind a hands-off approach, but the question remains: do you need to diversify with index funds?

The Case for Diversification

Like many things, it’s not about the number of index funds you have – it’s about the quality. If you hold multiple index funds that invest in the same types of stocks and bonds, you’re not really increasing the diversification of your investments. But if one index fund focuses on US funds, adding an internationally-based fund will lessen your risk and broaden your prospects. Many index funds focus on a particular market, such as the Vanguard TotalInternationalStock Market Index fund, which tracks non US-based “developed and emerging markets.” According to Vanguard, “Long-term investors who want to add a diversified international equity position to their portfolio might want to consider this fund as an option.” This is one example of an index fund that doesn’t give you the total diversification you’d want in a retirement portfolio. CFP John Angelo Flavin ofSynergy Financial Managementsaid asset allocation is one main reason to diversify your index funds. Asset allocation involves balancing your investments across a variety of categories, including market capitalization, national or international, and value or growth stocks. “Diversifying your index funds does make sense and is widespread across asset classes (i.e. an index fund for large cap U.S. value stocks, another for large cap U.S. growth stocks, another for developed countries other than the U.S., another for developing countries, etc.),” said CFP Erik Olson ofArete Wealth Management. “The slices can even be cut smaller and smaller for more specialized allocations.” Olson said you can also choose to diversify even more by choosing multiple indices within the same asset class. “Each index has its own rules for construction, and those rules don’t necessarily thrive in the same environment,” Olson said. Still, there’s a limit to just how much diversification will really benefit you. It’s easy to go down a rabbit hole when diversifying, but that’s a waste of time after a certain point. “You definitely don’t want to over do it,” Flavin said. “You don’t need to have five small cap funds in there.” Your overall portfolio should have both US and international funds, small to large companies and both growth and income funds. As long as your index funds reflect that variety of investments, you should be properly diversified. In the end, learning how to invest is all about how much time you want to spend researching. If choosing one index fund is all you have time for, that’s still better than not saving for retirement at all. But if you have the time and desire to look more closely at your portfolio, it will only benefit your nest egg. Financial advisors are also capable of choosing a slew of diversified investments for you based on your retirement goals, risk tolerance and other factors that are important to your investment approach. If you handle it yourself, it may be overwhelming to decide which index is better and how many you need to hedge against market risk.

Should I Diversify My Index Funds? — Avantax® Wealth Management (2024)

FAQs

Are index funds diversified enough? ›

Index funds are attractive for several reasons, including diversification and low expense ratios. In regards to the former, when you purchase shares of an index fund, you're exposed to all the stocks in an index. The idea is that stocks that are appreciating will make up for stocks that are depreciating.

How many index funds do you need to diversify? ›

Experts agree that for most personal investors, a portfolio comprising 5 to 10 ETFs is perfect in terms of diversification. But the number of ETFs is not what you should be looking at. Rather, you should consider the number of different sources of risk you are getting with those ETFs.

What does Warren Buffett say about investing in index funds? ›

Buffett puts his money where his mouth is

Hence his will stipulates that the money left to his wife, Astrid Menks, is invested in index funds: “My advice to the trustee could not be more simple: Put 10% of the cash in short-term government bonds and 90% in a very low-cost S&P 500 index fund.

Is the S&P 500 enough diversification? ›

The S&P 500 is a great core holding, however, it lacks several dimensions of an optimally diversified portfolio i.e. the sector, geographic, currency and cap size. While 38% of S&P 500 earnings come from outside of the U.S., that is not the same as owning a portfolio that has 38% international stocks.

Is it OK to only invest in index funds? ›

If you're new to investing, you can absolutely start off by buying index funds alone as you learn more about how to choose the right stocks. But as your knowledge grows, you may want to branch out and add different companies to your portfolio that you feel align well with your personal risk tolerance and goals.

What is the 4 percent rule for index funds? ›

The 4% rule states that you should be able to comfortably live off of 4% of your money in investments in your first year of retirement, then slightly increase or decrease that amount to account for inflation each subsequent year.

What is the 80 20 rule for index funds? ›

In investing, the 80-20 rule generally holds that 20% of the holdings in a portfolio are responsible for 80% of the portfolio's growth. On the flip side, 20% of a portfolio's holdings could be responsible for 80% of its losses.

What are the only 2 index funds in Warren Buffett portfolio? ›

BERKSHIRE HATHAWAY INC. Through his holding company, Berkshire Hathaway, Warren Buffett invests in only two ETFs: the Vanguard S&P 500 ETF and SPDR S&P 500 ETF Trust. An S&P 500 ETF is an investment that aims to track the S&P 500 index itself, which means it includes all the same stocks as the index.

How much of your portfolio should be in index funds? ›

What Is the 90/10 Rule in Investing? The 90/10 rule in investing is a comment made by Warren Buffett regarding asset allocation. The rule stipulates investing 90% of one's investment capital towards low-cost stock-based index funds and the remainder 10% to short-term government bonds.

Does Bill Gates invest in index funds? ›

He has invested over $60 billion in stocks or Index Funds, a report said. He along with his wife, Melinda Gates, invested into philanthropic donations.

Can you be a millionaire with index funds? ›

Broadly diversified index funds can be your investment vehicle for a ride to becoming a millionaire retiree, if the stock market performs as it has in the past. If you know little about investing and have no desire to learn more, you still can be a successful investor.

What is Rule #1 in investing according to Warren Buffett? ›

Rule 1: Never lose money.

This is considered by many to be Buffett's most important rule and is the foundation of his investment philosophy.

How much would $10000 invested in the S&P 500 in 1980 be worth today? ›

Assuming an expense ratio of 0.1% on your index fund (you can find even lower costs now), this means that a $10,000 investment would have turned into just over $760,000 as of Feb.

What does Dave Ramsey say about ETFs? ›

Ramsey suggested that if you do want to engage in passive investing, you're better off doing it with an index mutual fund than with an ETF that tracks a market or financial index. His reasoning: Mutual funds are meant to be invested in over the long term, while ETFs trade daily.

Is it smart to invest everything in the S&P 500? ›

Legendary investor Warren Buffet once said that all it takes to make money as an investor is to 'consistently buy an S&P 500 low-cost index fund. ' And academic research tends to agree that the S&P 500 is a good investment in the long term, despite occasional drawdowns.

Does Warren Buffett only invest in index funds? ›

Warren Buffett is a firm believer in index funds. In fact, in his 2013 letter to Berkshire Hathaway (NYSE: BRK. A) (NYSE: BRK.B) shareholders, he wrote that his will recommends that most of the cash that goes to his family be put in a low-cost S&P 500 index fund.

Can you live off index funds? ›

Index funds give investors access to near-market returns with no stock picking or market timing required. But are market-level returns enough to grow your retirement account to seven figures? That's the million-dollar question. The easy answer is -- yes -- you can retire a millionaire with index funds.

What is a better investment than index funds? ›

ETFs are more tax-efficient than index funds by nature, thanks to the way they're structured. When you sell an ETF, you're typically selling it to another investor who's buying it, and the cash is coming directly from them.

Can I retire at 50 with $2 million dollars? ›

Yes, you can retire at 50 with 2 million dollars. At age 50, an annuity will provide a guaranteed income of $125,000 annually, starting immediately for the rest of the insured's lifetime. The income will stay the same and never decrease. annually initially, with the income amount increasing to keep up with inflation.

How much money do you need to retire with $100000 a year income? ›

This means that if you make $100,000 shortly before retirement, you can start to plan using the ballpark expectation that you'll need about $75,000 a year to live on in retirement. You'll likely need less income in retirement than during your working years because: Most people spend less in retirement.

What is the 7% investment rule? ›

Divide 72 by your average expected annual return

If instead your average expected annual return was a more modest 7% (accounting for the typical annual inflation of around 3%), dividing 72 by 7 would result in 10.3, meaning it would take slightly over a decade for your money to double under those conditions.

Is an S&P 500 index fund enough? ›

Legendary investor Warren Buffet once said that all it takes to make money as an investor is to 'consistently buy an S&P 500 low-cost index fund. ' And academic research tends to agree that the S&P 500 is a good investment in the long term, despite occasional drawdowns.

Is the Vanguard 500 index fund diversified? ›

Because the 500 Index Fund is broadly diversified within the large-capitalization market, it may be considered a core equity holding in a portfolio.

What is the main disadvantage of investing in index funds? ›

The benefits of index investing include low cost, requires little financial knowledge, convenience, and provides diversification. Disadvantages include the lack of downside protection, no choice in index composition, and it cannot beat the market (by definition).

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