Comparing Index Funds and Mutual Funds

Some links below are from our sponsors. Here’s how we make money.

Advertiser Disclosure: Opinions, reviews, analyses & recommendations are the author’s alone. This article may contain links from our advertisers. For more information, please see our Advertising Policy.

default sharing image
Learning how to invest can be fun, but it can also be a little intimidating when you start reading about the various forms of investments, especially if the first book you pick up isn’t designed for a first-time investor. This article covers the differences and similarities between mutual funds and index funds, two of the…

Learning how to invest can be fun, but it can also be a little intimidating when you start reading about the various forms of investments, especially if the first book you pick up isn’t designed for a first-time investor. This article covers the differences and similarities between mutual funds and index funds, two of the more popular forms of investing that you have probably heard of, but you may not completely understand.

Comparing Index Funds and Mutual Funds

Compare index funds and mutual funds
Index funds track the major markets; mutual funds can include anything.

Both mutual funds and index funds are collective investments, which is an investment where investors pool together their money to make a collective investment they wouldn’t be able to make on their own. Collective investments often have a preset criteria they are trying to achieve, such as investing in a certain market or type of investment. This is an ideal situation for beginner investors who may not be able to fund a well-diversified investment portfolio with a small budget. Mutual funds and index funds have several similarities and differences, which are covered below.

Mutual Funds – Anything Goes

Active management. Mutual funds are professionally managed investment funds which pool together resources from many different investors with the goal of reaching the  fund’s investment objectives through buying and selling the fund’s investments. Most mutual funds are overseen by trustees or board of directors which ensures that the funds are being managed properly and in the best interest of the investors. Mutual fund portfolios are monitored by the management company (usually called a portfolio manager). The goal of a mutual fund is to beat the market.

Types of investments. Investments in mutual funds are made in securities like stocks and bonds, money markets, other mutual funds, and/or commodities such as precious metals. Many mutual funds are created in a specialty or sector. For example, a specific mutual fund may only contain investments in a certain stock class (such as value stocks, dividend stocks, etc.), or a sector, such as technology, medical, financial services, utilities, commodities, etc.

Taxation. In some cases, mutual funds are not be taxed on income like most other business entities – provided the mutual fund distributes at least 90% of their income to their shareholders, and the funds meet additional IRS diversification requirements. Distributions from mutual funds including tax-free municipal bond income are tax free to shareholders, while taxable distributions from mutual funds can either by ordinary income or capital gains depending on how the fund earned the distributions. Net losses from mutual funds are not passed through to fund investors.

Index Funds – Mirror the Stock Market

S&P 500 Market Sector Breakdown
S&P 500 Market Sector Breakdown

Passive management. Index funds are designed to follow a stock market or other investing index and stick to a set of rules regardless of the current market conditions. Often, index funds rely completely on computer models without any human decision making as to which securities are bought or sold. Because of the lack of human input, index funds are considered a passive managed investment. The value of the index fund will fluctuate as the value if the index increases and decreases. The goal of an index fund is to match the market.

Types of investments. Index funds follow the structure of the index they match, so if the index is a stock based index, the index fund should contain the same stocks in the same proportion as the stock index. Index funds can be found for various types of investments including different stock classes, bonds, commodities, and other types of investments. Adding or removing stocks to the index usually only happens when new stocks enter or leave the index. Despite computer models and an attempt to replicate the index used as the model for investing, there is no way to make the investments 100% accurate. The difference between the index performance and the performance of your index fund is called the “tracking error” or “jitter.” Many investment managers offer index funds. Most use indexes from S&P 500, Nikkei 225 and FTSE 100. Some rely on educational research indexes like Eugene Fama and Kenneth French to develop asset pricing models.

Index funds are a simple investment. You pretty much always know what you will get with an index fund. And because there is a relative lack of human input, or a passive quality to index funds, they usually have an advantage of lower fees and taxes. They are have lower investment turnover, which can be beneficial at tax time.

The Difference Between Mutual Funds and Index Funds

The primary differences between an index fund and a mutual fund is how they are managed (active vs. passive) and which rules govern the type of investments made. Active and passive management usually result in higher or lower management fees. Mutual funds have an active management, and often higher management fees, and Index funds are typically passively managed and will mimic an index regardless of the market conditions. Because the criteria for index funds is more or less set in stone, the management fees are substantially lower than most mutual funds.

Which is better – mutual funds or index funds? When deciding which type of fund to invest in, you need to consider your investment goals, and the investment goals of the fund. If you are trying to minimize fees and maintain a simple investment, then an index fund may be a better option. If you are looking for an actively managed product and are you trying to beat the market, then you may want to consider a mutual fund.

Obviously, everyone want to beat the market if they can, but it doesn’t always work out that way. When researching mutual funds, keep in mind the types if investments offered by the fund, the fund manager’s history, the fund track record, management fees, and anything else that may affect your decision to invest. Also keep in mind that past results do not guarantee future returns. Here are more pros and cons of mutual funds.

Where to purchase mutual funds and index funds. You can purchase mutual funds and index funds through almost any brokerage firm and through some banks. This list of the best online discount brokerage firms is a good place to start.

Similar investments: See exchange-traded funds (ETFs), for a type of investment similar to a mutual fund, but different in how it is traded.

Get Instant Access
FREE Weekly Updates! Enter your information to join our mailing list.

Posted In:

About Ryan Guina

Ryan Guina is the founder and editor of Cash Money Life. He is a writer, small business owner, and entrepreneur. He served over 6 years on active duty in the USAF and is a current member of the IL Air National Guard.

Ryan started Cash Money Life in 2007 after separating from active duty military service and has been writing about financial, small business, and military benefits topics since then. He also writes about military money topics and military and veterans benefits at The Military Wallet.

Ryan uses Personal Capital to track and manage his finances. Personal Capital is a free software program that allows him to track his net worth, balance his investment portfolio, track his income and expenses, and much more. You can open a free account here.

Reader Interactions


    Leave A Comment:


    About the comments on this site:

    These responses are not provided or commissioned by the bank advertiser. Responses have not been reviewed, approved or otherwise endorsed by the bank advertiser. It is not the bank advertiser’s responsibility to ensure all posts and/or questions are answered.

  1. Sun says

    When google employees became millionaires they were advised to invest in passive index funds. Actively managed can’t sustain growth long term. Until incentives are tied to performance over time, fund managers will skim off the top without any consequences. If they lose your money, they still get paid. This promotes irresponsible speculation and greedy behavior. Since wall street can’t morally regulate themselves systemic changes need to occur so you’re not left penniless and fund managers get obscene bonuses.

Disclaimer: The content on this site is for informational and entertainment purposes only and is not professional financial advice. References to third party products, rates, and offers may change without notice. Please visit the referenced site for current information. We may receive compensation through affiliate or advertising relationships from products mentioned on this site. However, we do not accept compensation for positive reviews; all reviews on this site represent the opinions of the author. Privacy Policy

Editorial Disclosure: This content is not provided or commissioned by the bank advertiser. Opinions expressed here are author’s alone, not those of the bank advertiser, and have not been reviewed, approved or otherwise endorsed by the bank advertiser. This site may be compensated through the bank advertiser Affiliate Program.