Mutual Funds vs. Index Funds: What's the Difference? | Ally (2024)

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April 21, 2022• 5 min read

What we'll cover

  • How mutual and index funds work

  • Difference between mutual funds and index funds

  • The pros and cons of mutual and index funds

Deciding whether you want to invest in mutual funds or index funds may seem like a really tough decision, like deciding between your favorite two desserts.

Of course, you could invest in both mutual funds and index funds — just like you could order both desserts — but regardless, there are some differences between both types of funds that can help you make an informed investment decision.

Let's go over the differences between mutual funds and index funds as you consider which is better for your personal portfolio and financial situation.

Mutual funds

So, how does a mutual fund work? A mutual fund pools money from multiple investors and invests it into different securities. Think of the individual securities that make up a mutual fund as the ingredients for baking cookies — chocolate chips, baking soda, flour, butter, eggs.

Buying shares of a mutual fund means you purchase all the ingredients in the mixing bowl. In investing, it's often referred to as buying into a basket of securities — in other words, you become a shareholder of that mutual fund.

Mutual fund security types can include individual stocks, bonds, real estate or commodities (such as gold, beef, oil). Unlike purchasing individual stocks, in which you make all the investment decisions, a fund manager decides which securities go in the fund and how to buy and sell individual securities. In other words, it's not up to you to build these decisions into your investing.

Some ways through which you might earn money from mutual funds are:

  • Dividends:Individual securities pay dividends to investors, which means that a distribution of profits by a corporation goes toward shareholders.

  • Capital gains:Through mutual funds, you can also take advantage of capital gains. Capital gains are the profits earned from selling a security for more than it was purchased for. This can occur if you sell your shares of a mutual fund for more than what you initially paid.

Index funds

An index fund is a type of mutual fund or exchange-traded fund (ETF). An index fund, also called an index mutual fund, is a bundle of stocks that mirrors the performance of an index, like the S&P 500, the Dow Jones Industrial Average (DJIA), the Nasdaq Composite or the Russell 2000 Index. Because index funds follows a specific index, they’re considered passively managed, and they also carry lower fees than actively managed funds.

Index funds can reduce short-term capital gains because index funds eliminate the constant buying and selling by active fund managers. However, active fund managers have the flexibility of choosing securities that give consumers the lowest tax bite.

Index funds can contain many, many underlying securities, which makes them more diversified and less volatile than individual stocks. By their very nature, index funds seek returns that match an index and can produce fairly predictable results over time.

Index funds generally don't pay capital gains to an investor until you sell the fund because they make few stock trades due to merely tracking an index. Index funds can, however, pay out dividends.

Differences between mutual funds and index funds

What is the difference between a mutual fund and an index fund? Let's take a look:

Comparing mutual funds vs. index funds
Mutual fund Index fund
Investment objective Aims to beat the returns of a benchmark index Returns are based on a benchmark index, such as the S&P 500
Types of investments Stocks, bonds, other securities Stocks, bonds, other securities
Management style Fund managers pick the securities Passive management style — they follow the index
Fees Typically cost more than index funds because you're paying a middleman — the fund manager Typically cost less than mutual funds

Which is better, index funds or mutual funds?

As with any investment, it depends heavily on what you want. Do you prefer active management to passive management? Do you want to pay fewer fees or more fees? Let's go over the pros and cons for you to consider.

The pros and cons of a mutual fund

First, the pros of mutual funds. They offer:

  • Investment diversification

  • The opportunity to invest in many different types of securities

  • Access to others who manage your money, resulting in simplified investment decisions

  • Liquidity — you can access them anytime you want

On the other hand, cons of mutual funds include:

  • Generally higher cost compared to some other funds due to high expense ratios and other sales charges

  • Less control over your portfolio because the mutual fund manager makes decisions on your behalf

  • No intraday trading — they trade only once per day, after the financial markets close

The pros and cons of an index fund

Next, let's take a look at the pros and cons of an index fund.

Pros:

  • Is a lower cost investment due to passive investing

  • Offers diversification

  • Tracks the returns of market indexes, which may be more reliable

Cons:

  • No control over holdings — you don’t choose what goes into the fund (like you would if you would choose individual stocks)

  • Moves in reaction to the stock market, which means if the stock market goes down, it goes down

I want to invest in the S&P 500. How do I do that?

The S&P 500 is not an active mutual fund or an index fund. It is a stock index that tracks the performance of 500 of the largest companies listed on stock exchanges, which refers to market capitalization of more than $10 billion. In order to invest in the S&P 500, you must invest in a fund that tracks it.

Making your mutual fund vs. index fund decision

Which type of fund will work best for you and your specific investment needs? Actively managed funds or passive options? Do you have a specific index you want to track with your investment?

Before making an investment decision, consider your entire financial situation and what your objectives are with your investments. Once you have a full picture and better understanding of the differences between mutual funds and index funds, you’ll be better equipped to come to a conclusion that’s best for your portfolio.

Mutual Funds vs. Index Funds: What's the Difference? | Ally (2024)

FAQs

Mutual Funds vs. Index Funds: What's the Difference? | Ally? ›

The main difference is that index funds are passively managed, while most other mutual funds are actively managed, which changes the way they work and the amount of fees you'll pay.

What is better, mutual funds or index funds? ›

Diversification Shortcut: Index funds passively track benchmarks; mutual funds aim to outperform. Investment Accessibility: Invest in mutual funds via company or trade ETFs like stocks for added convenience. Cost and Performance: Index funds cost less, have lower taxes. Most prefer them for cost-effectiveness.

What is a disadvantage of a mutual index fund? ›

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).

Is it better to just invest in index funds? ›

Index funds can be an excellent option for beginners stepping into the investment world. They are a simple, cost-effective way to hold a broad range of stocks or bonds that mimic a specific benchmark index, meaning they are diversified.

Is the S&P 500 a mutual fund? ›

Schwab S&P 500 Index Fund (SWPPX)

This mutual fund has a strong record dating back to 1997, and it's sponsored by Charles Schwab, one of the most respected names in the industry. Schwab is especially noted for its focus on making investor-friendly products, as evidenced by this fund's razor-thin expense ratio.

Why choose index funds over mutual funds? ›

Index funds make diversification much easier for the average investor, and the passive management style allows the manager to charge lower investment advisory fees. Investing in index funds is often referred to as passive investing, because index funds operate without much human intervention.

Which is more risky mutual funds or index funds? ›

Index funds are less risky since they mirror popular indexes and often have a lower expense ratio, but they also have a lower ceiling on their potential returns. While they cannot easily outperform the market, index funds have several strengths that attract long-term investors.

Do billionaires invest in index funds? ›

It's easy to see why S&P 500 index funds are so popular with the billionaire investor class. The S&P 500 has a long history of delivering strong returns, averaging 9% annually over 150 years. In other words, it's hard to find an investment with a better track record than the U.S. stock market.

What happens to index funds when the market crashes? ›

For instance, in a major sell-off, when an index itself loses value, an index fund holding the underlying securities of the index will also lose value. However, investors who hold on to their fund investments should see the fund value increase as the value of the index itself reverses course and increases.

Are index funds safe during a recession? ›

The important thing to remember about index funds is that they should be long-term holds. This means that a short-term recession should not affect your investments.

Should a beginner invest in index funds? ›

For beginners, the vast array of index funds options can be overwhelming. We recommend Vanguard S&P 500 ETF (VOO) (minimum investment: $1; expense Ratio: 0.03%); Invesco QQQ ETF (QQQ) (minimum investment: NA; expense Ratio: 0.2%); and SPDR Dow Jones Industrial Average ETF Trust (DIA).

Why would someone rather invest in an index fund? ›

One major reason is that they generally have much lower management fees than other funds because they are passively managed. Instead of having a manager actively trading, and a research team analyzing securities and making recommendations, the index fund's portfolio just duplicates that of its designated index.

What is the average return of index funds? ›

The average stock market return is about 10% per year, as measured by the S&P 500 index, but that 10% average rate is reduced by inflation.

When should you not invest in mutual funds? ›

However, mutual funds are considered a bad investment when investors consider certain negative factors to be important, such as high expense ratios charged by the fund, various hidden front-end, and back-end load charges, lack of control over investment decisions, and diluted returns.

What is the 5 year return of the S&P 500? ›

Average Stock Market Returns Per Year
Years Averaged (as of end of April 2024)Stock Market Average Return per Year (Dividends Reinvested)Average Return with Dividends Reinvested & Inflation Adjusted
30 Years10.473%7.743%
20 Years9.882%7.13%
10 Years12.579%9.521%
5 Years13.712%9.246%
3 more rows

Is Vanguard the best index fund? ›

Vanguard funds are known for having the lowest expense ratios in the industry. This allows investors to save money on fees and helps their returns over the long run. Vanguard is the largest issuer of mutual funds in the world and the third-largest issuer of exchange-traded funds (ETFs), ranked by assets as of May 2024.

Do index funds outperform mutual funds? ›

Depending on your goals, low-cost index funds can be a smart option because the majority consistently outperform actively-managed mutual funds.

Which mutual fund is better than S&P 500? ›

10 funds that beat the S&P 500 by over 20% in 2023
Fund2023 performance (%)5yr performance (%)
MS INVF US Insight52.2634.65
Sands Capital US Select Growth Fund51.376.97
Natixis Loomis Sayles US Growth Equity49.56111.67
T. Rowe Price US Blue Chip Equity49.5481.57
6 more rows
Jan 4, 2024

Is it better to buy stocks or mutual funds? ›

Mutual funds or stocks—which one offers more security? Mutual funds typically offer more security compared to individual stocks because they spread investments across various assets, reducing the impact of market fluctuations. However, the level of security depends on the specific mutual fund or stock chosen.

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