When you start exploring mutual funds, two terms often appear: active funds and index funds.
Both allow investors to invest in a portfolio of securities. The main difference is how that portfolio is managed. An index fund tries to follow a market index, while an active mutual fund has a fund manager making investment decisions.
So, which approach is different and why does it matter?
What Is an Index Fund?
An index fund is a mutual fund that aims to track a particular market index.
For example, a Nifty 50 index fund generally seeks to follow the performance of the Nifty 50 by investing according to the index it tracks.
SEBI’s investor education portal explains that index mutual funds follow a passive investment strategy and aim to replicate the performance of a chosen index.
In simple words, the fund is trying to follow the market index rather than beat it.
What Is an Active Mutual Fund?
An active mutual fund is managed through active investment decisions.
The fund manager decides which securities to buy, hold or sell according to the scheme’s investment objective and strategy.
AMFI explains that fund managers in active funds actively make decisions on security selection and portfolio management.
The aim of an active strategy may be to outperform its benchmark, but outperformance is not guaranteed.
Index Funds vs Active Funds: Key Differences
| Basis | Index Funds | Active Mutual Funds |
|---|---|---|
| Management Style | Passive | Active |
| Main Objective | Track an index | Follow an active investment strategy, often seeking to outperform a benchmark |
| Security Selection | Based largely on the tracked index | Decided by the fund management team |
| Costs | Generally lower | Generally higher than index funds |
| Benchmark Performance | Seeks to closely follow the index | May outperform or underperform the benchmark |
How Fund Management Differs
Imagine two people following the Nifty 50.
The first person simply tries to hold securities in line with the index. If the index composition changes, the portfolio is adjusted accordingly.
This is similar to an index fund.
The second person studies companies and decides which securities to buy, hold or sell based on an investment strategy.
This is closer to an actively managed fund.
AMFI describes active funds as schemes where the fund manager actively takes buy, hold and sell decisions.
Expense Ratio and Costs
The expense ratio represents the annual operating expenses of a mutual fund scheme as a percentage of its assets.
These expenses affect the fund’s NAV and investor returns.
Index funds generally have lower expense ratios than actively managed funds because they require less active portfolio management. SEBI also lists low cost as a common benefit of index mutual funds.
However, the actual expense ratio varies by scheme. Investors should check the latest scheme information before investing.
Risk and Return Differences
Index funds are exposed to the risks of the market or index they track. If the index falls, the value of the index fund can also fall.
They may also have tracking error, which means the fund’s performance may differ from its benchmark.
Active funds also face market and scheme-specific risks. Their performance is influenced by market conditions and the investment decisions made by the fund management team.
Neither index funds nor active funds guarantee returns.
Can Active Funds Beat the Market?
Yes, an active fund can outperform its benchmark. But this does not mean every active fund will do so.
For example, the SPIVA India Year-End 2025 Scorecard found that performance against benchmarks varied significantly across active fund categories and investment periods. In several categories, a large proportion of active funds underperformed their benchmarks.
The important point is simple: active management creates the possibility of outperforming a benchmark, but there is no guarantee.
Who May Consider Index Funds?
Index funds may be considered by investors who:
Prefer a simple investment approach.
Want exposure to a specific market index.
Prefer passive investing.
Pay attention to investment costs.
SEBI describes simplicity and lower costs as common features of index mutual funds.
The suitability of a fund still depends on an investor’s goals and risk tolerance.
Who May Consider Active Funds?
Active funds may be considered by investors who want a professionally managed portfolio where investment decisions are actively taken.
Such investors should understand that fund performance may be above or below the benchmark.
Before investing, it is important to check the scheme’s investment objective, risk level, portfolio strategy and expenses.
Can You Invest in Both?
Yes. Investors can hold both index funds and actively managed mutual funds.
For example, an investor may use an index fund for passive market exposure and an active fund for a different investment strategy.
However, simply owning more funds does not automatically create effective diversification. The underlying investments and investment objectives should also be considered.
Common Mistakes Beginners Make
One common mistake is assuming that index funds are risk-free. They are still exposed to market movements.
Another mistake is choosing an active fund only because it recently gave high returns. Past performance does not guarantee future results.
Beginners may also ignore expense ratios, tracking error, the Riskometer and the scheme’s investment objective.
A fund should be understood before money is invested in it.
FAQs
What is the main difference between index and active mutual funds?
Index funds aim to track a market index, while active mutual funds are managed through active investment decisions by a fund management team.
Are index funds passively managed?
Yes. Index funds follow a passive investment strategy designed to track a selected index.
Are index funds cheaper than active funds?
Index funds generally have lower expense ratios than actively managed funds. However, actual costs vary by scheme.
Can active mutual funds beat the market?
An active fund can outperform its benchmark, but there is no guarantee that it will do so.
Are index funds risk-free?
No. Index funds are subject to market risk and can lose value when the market or tracked index falls.
Which is better for beginners?
There is no single answer for every investor. The suitable choice depends on financial goals, investment horizon, risk tolerance and understanding of the scheme.
