Rolling Returns vs Point-to-Point: A Better Way to Judge Mutual Funds

What Are Point-to-Point Returns?

Point to point returns measure the growth of an investment between one specific starting date and one ending date. They compare the value of a mutual fund at two fixed points in time and calculate the return earned during that period.

For example, suppose you invested ₹1,00,000 in a mutual fund on 1 January 2020, and its value became ₹1,45,000 on 1 January 2025. The point-to-point return is calculated using only these two dates.

While this method is simple, it has one important limitation known as start-date bias. The return may appear high or low depending on the market conditions on the selected starting and ending dates. As a result, the performance shown may not represent how the fund performed during other periods.

What Are Rolling Returns and How Do They Differ?

Rolling returns measure the returns generated over a fixed investment period across several different starting dates instead of using only one start and end date. Rather than calculating a single five-year return, rolling returns calculate every possible five-year return within the available data period.

For example, if a mutual fund has ten years of historical data, five-year rolling returns are calculated by moving the starting date forward one day, one week, or one month at a time until the end of the available period. This creates multiple return observations instead of just one.

Compared with point-to-point returns, rolling returns provide a broader view of a mutual fund's performance across different market conditions. They help investors understand how consistently the fund has generated returns instead of focusing on one selected period.

How to Calculate Rolling Returns – Formula and Steps

Rolling returns are generally calculated using the Compound Annual Growth Rate (CAGR) formula for every rolling investment period.

CAGR Formula

CAGR = [(Ending Value ÷ Beginning Value)^(1 ÷ Number of Years)] − 1

The same formula is applied repeatedly across different investment windows to calculate rolling returns.

Steps to Calculate Rolling Returns

• Select the rolling period, such as three years or five years.
• Choose the first investment date and the corresponding ending date.
• Apply the CAGR formula to calculate the return.
• Move the starting date forward by one day, one week, or one month.
• Repeat the calculation until all possible periods have been covered.
• Compare the collection of returns to understand the fund's consistency.

Rolling Returns Calculation Example

Suppose a mutual fund's NAV was ₹20 on 1 January 2020 and increased to ₹28 on 1 January 2025.

Using the CAGR formula:

• Beginning Value = ₹20
• Ending Value = ₹28
• Investment Period = 5 years

The calculated CAGR represents the first five-year rolling return.

Next, move the starting date to 2 January 2020, find the NAV after the next five years, and repeat the calculation. This process continues until every five-year period has been measured.

Rolling Returns vs CAGR – Key Difference

Although both use the CAGR formula, they serve different purposes.

CAGR calculates the annualised return for one specific investment period. Rolling returns calculate multiple CAGR values across different time periods. In simple terms, CAGR provides a single performance figure, while rolling returns show how consistently a mutual fund has performed over time.

Rolling Returns vs Point-to-Point Returns

Why Rolling Returns Are More Reliable

Rolling returns provide a broader view of a mutual fund's performance because they evaluate returns across multiple time periods instead of relying on one selected investment window.

• Reduce Start-Date Bias: Since returns are calculated using many different starting dates, the results are less influenced by favourable or unfavourable market conditions at one point in time.
• Show Performance Across Market Cycles: Rolling returns include periods of rising, falling, and stable markets, giving a more balanced picture of the fund's historical performance.
• Support Better Fund Comparison: Comparing the rolling returns of two mutual funds helps investors assess which fund has delivered more consistent results over similar investment periods.
• Highlight Return Distribution: Instead of presenting only one return figure, rolling returns show how returns have varied over time, making it easier to understand performance consistency.
• Useful for Long-Term Investors: Investors planning long-term goals or regular investments can use rolling returns to assess how a fund has performed across different market environments.
   

Limitations of Rolling Returns

Although rolling returns provide useful insights, they also have certain limitations that investors should consider.

• Depend on Historical Data: Rolling returns are based entirely on past performance, which may not reflect future outcomes.
• Require More Calculations: Since returns are calculated across multiple periods, they are more complex than point-to-point returns.
• May Smooth Short-Term Movements: Averaging returns over many periods can reduce the visibility of short-term market fluctuations.
• Should Not Be Used Alone: Rolling returns are one performance measure and should be evaluated alongside factors such as investment objective, risk, expense ratio, and portfolio composition.
   

When to Use Which Metric

Both rolling returns and point-to-point returns have different purposes. The appropriate metric depends on what an investor wants to evaluate.

Point-to-point returns are suitable when reviewing the return earned on a particular investment. Rolling returns are more suitable when comparing mutual funds and assessing their performance across different market conditions.

How to Find Rolling Returns Online

You can check rolling returns using several reliable sources.

• Visit the website of the respective Asset Management Company (AMC) and explore the scheme's performance section.
• Use independent mutual fund research platforms that publish rolling return data for different schemes.
• Log in to the 5Paisa platform and compare mutual funds using the available research and comparison tools.
• Compare rolling returns across similar categories instead of evaluating a single fund in isolation.

Conclusion

Rolling returns provide a more comprehensive way to evaluate mutual fund performance because they measure returns across multiple investment periods rather than one selected timeframe. While point-to-point returns remain useful for reviewing a specific investment, rolling returns offer deeper insight into consistency across different market cycles. Using both measures together can help investors make more informed comparisons when selecting mutual funds.