Index Fund vs Mutual Fund: Key Differences Explained

Understanding Index Funds

An index fund follows a specific market index. Instead of selecting stocks based on research or market views, it invests in the same companies that make up the chosen index and in similar proportions.

This approach keeps the portfolio aligned with the index. Since there is no need for frequent buying and selling, index funds usually have lower costs.

Index funds are often preferred by investors who want broad market exposure, a simple investment approach, and lower expenses over the long term.

Understanding Actively Managed Mutual Funds

Active mutual funds are actively managed by expert fund managers who conduct research on companies, industries, economic trends, and market conditions before investing.

The goal here is to earn returns that exceed those of the benchmark index. There may be changes in the composition of the portfolio depending on the findings of the fund manager.

This strategy is more flexible, although it incurs higher fund management fees and does not have any guarantee of beating the benchmark index.

Index Fund vs Actively Managed Mutual Fund

Performance

There are some actively managed funds that have performed better than their benchmarks in some market scenarios. But there are others that have underperformed. It all depends on the decision-making skills of the portfolio manager.

The purpose of an index fund is not to outperform the market but rather to match the performance of the index minus expenses. The difference between the returns of the fund and those of the benchmark is called the tracking error.

Costs

One major difference is cost. Index funds tend to be cheaper since they invest in a predetermined index and need less management.

Small differences in annual fees can influence the long-term results of an investment. The more affordable a fund is, the more of your money stays invested.

Risk

Both of the investment options are exposed to market risk due to market-linked investments.

The performance of an index fund depends on the performance of a selected index. If the index falls, the value of the fund may fall too.

The risk of an actively managed fund can be reduced or increased according to the investment strategy. Depending on how the fund performs, the results will differ.

A Simple Example

Consider that two investors invest ₹1,00,000 each for 10 years.

• One investor opts for an index fund with an expense ratio that is lower.
• The other investor goes for an actively managed mutual fund with a higher expense ratio.

Both investments may have a return equal to that of the market prior to the deduction of expenses. However, due to lower costs, the return of the index fund can be higher.

This case study demonstrates the importance of considering the impact of expenses. This is especially true for investors with a long investment period.
 

Which One Should You Choose?

The right choice depends on your investment goals, risk appetite, and personal preference.

An index fund may suit you if you:

• Prefer a simple investment strategy.
• Want lower investment costs.
• Plan to invest for the long term.
• Are comfortable earning returns that broadly match the market.

An actively managed mutual fund may suit you if you:

• Want professional investment management.
• Are comfortable with higher costs.
• Believe active fund selection may add value over time.
• Can review your investments periodically.

There is no single option that works for everyone. Many investors also choose to hold both types of funds to build a diversified portfolio.

Conclusion

Index and actively managed mutual funds give people an opportunity to be involved in the financial markets; however, there is a difference in how both funds manage investments. While index funds focus on market replication with low costs, actively managed funds focus on outperforming the market with fund management skills.

It is always prudent for one to consider certain parameters, such as the objective of the fund, the level of risk in the fund, cost, performance, among others, before choosing a certain scheme, from the Scheme Information Document (SID) and Key Information Memorandum (KIM). Mostly, the relevance of the fund to the objective of the investor is more important than the method of investment.