Continuous returns in mutual funds: one-year returns can mislead investors – View on news from Equitymaster

December 17, 2025

When it comes to analyzing mutual fund performance, most investors instinctively consider returns from a one-, three-, or five-year perspective. While these figures provide a snapshot, they often do not provide the full picture of a fund’s performance.

Market cycles, the timing of your investment, and short-term volatility can all drastically impact these point-to-point returns.

That’s where the role of rolling returns becomes important. Rolling returns more realistically and consistently represent the performance that a mutual fund would have delivered over a period of time, allowing investors to make a better long-term decision.

What are rolling returns?

Rolling returns measure the annualized return of a mutual fund over a specified period of time. Instead of using a fixed start and end date, it calculates returns for all overlapping periods of that length.

For example, for a fund with a ten-year history, a rolling three-year return is calculated for each three-year period:

• January 2016 – January 2019
• February 2019 – February 2022
• March 2022 – March 2025

…and so on, until the last available date.

This approach generates a range of returns rather than a single number, providing a clearer picture of how the fund has performed at different market stages.

How rolling returns are calculated

Rolling returns are typically calculated using the CAGR formula, applied to each overlapping period:

• End NAV = NAV at the end of the period
• Starting NAV = NAV at the beginning of the period
• n = number of years (or part of a year)

By advancing the start date incrementally (daily, monthly, or quarterly), we get hundreds or even thousands of rolling return observations.

From this data we could deduce:

• Average moving return: the average return over all periods
• Best progressive return: the maximum return achieved on an annual basis
• Worst Rolling Return: The minimum annualized return experienced

This information highlights both the potential advantages and disadvantages, something that a single CAGR number cannot capture.

Why rolling returns matter to investors

#1 Consistency across all market cycles

Point-to-point returns can be strongly influenced by:

• Highs or lows in the market at the time of investing
• Short-term market movements

Rolling returns, on the other hand, show how consistently the fund has performed regardless of entry points. Investors can see whether a fund regularly outperforms its benchmark, or only during certain periods.

#2 Real risk and volatility

Rolling returns reveal:

• How often a fund generates a negative return
• Magnitude of losses in the worst performing periods

This helps investors avoid a fund that is highly volatile even if it has strong point-to-point returns.

3. SIP planning

For investors investing through Systematic Investment Plans (SIPs), rolling returns are particularly relevant:

• SIP investments are spread across different NAVs, similar to overlapping periods in rolling returns
• Funds with stable rolling returns tend to deliver smoother SIP returns over the long term

4. Better comparisons

Two funds today might have a similar five-year CAGR. However, a rolling return analysis can reveal the following:

• Fund A outperformed its benchmark 70% of the rolling periods
• Fund B outperformed its benchmark only 40% of rolling periods

This allows investors to identify funds that consistently deliver superior performance.

How rolling returns differ from CAGR

If CAGR tells you what a fund has returned over a period of time, rolling returns tell you how reliable these returns are at different entry points.

Continuous returns will suggest to investors the consistency with which an investment fund has performed over a period of time, and not just through its ‘point-to-point’ returns.

It tells us whether a fund is reliably generating growth, how often it outperforms its benchmark, and how it behaves during ups and downs in the market by showing the range of returns over multiple overlapping time periods.

This makes expected returns, as well as the associated risks, more accurate and relevant to investors, making it easier to choose a fund that matches their long-term goals.

Rolling returns are of interest to investors who plan investments for long-term goals such as retirement or wealth creation. These returns can simulate entries at different times and show how investments would have performed in different market cycles. This helps investors choose funds that exhibit smoother and more predictable performance.

In other words, rolling returns help make better decisions because they highlight consistency, risk and reliability; all traits that are typically overlooked in point-to-point returns.

Ultimately, rolling returns are one of many tools investors can use to evaluate mutual funds. They complement other analyzes by adding context and perspective, but must be balanced against other aspects such as fund objectives, expense ratios and investors’ personal investment goals.

Using it as part of a broader approach allows a more balanced and informed decision to be made.

Invest wisely.

Have fun investing.

Table Note: Data as of December 15, 2025
The effects mentioned are for illustrative purposes only and not recommended
Past performance is not an indicator of future returns.
Returns are on a rolling CAGR basis and in %. Direct Plan-Growth option. The images shown over a period of 1 year are compiled on an annual basis.
Risk ratios are calculated over a three-year period, assuming a risk-free interest rate of 6% per year

Disclaimer: This article is for information purposes only and does not constitute any investment advice or recommendation to buy/hold/sell any fund. The returns mentioned herein are in no way a guarantee or promise of future returns. As an investor, you must choose the right fund to achieve your financial goals. If you are unsure about your risk tolerance, please consult your investment advisor/advisor. Investments in mutual funds are subject to market risks; read all fund-related documents carefully. Registration granted by SEBI, registration as IA with Exchange and certification by NISM in no way guarantee the performance of the intermediary or provide any assurance of returns to investors.