Active large-cap funds and index funds are two popular ways to invest in equity markets. While active large-cap mutual funds aim to outperform the market through a fund manager’s stock selection, index funds aim to match the performance of a market index. But how do their returns compare over the long term?

When you look at 10 years of rolling returns, it can help you compare their performance across different periods and understand how a fund has been performing over time. It is important to note that past performance does not guarantee future results, but it may help in making informed investment decisions.

What are Rolling Returns?

Rolling returns measure an investment’s performance across several overlapping periods within a chosen timeframe. Instead of checking only the return earned between two fixed dates, you examine start and end dates.

For instance, a 10-year study can compare successive five-year investment periods across the available historical data. Each period begins at a different date, allowing you to observe how performance changed under different market conditions.

This approach may help you assess if a fund’s performance depended on one market phase or appeared across several phases.

Active Large-Cap Funds vs. Index Funds

Both active large-cap funds and large-cap index funds provide exposure to large companies, but their investment strategies differ.

Active large-cap funds: These funds operate on a fund manager’s expertise, research and stock selection to try to outperform the relevant benchmark. Their performance may depend on decisions like selection of stocks, sector allocations, and investment costs. However, active management does not necessarily mean it outperforms a benchmark.

Index funds: Index funds aim to replicate a particular market index by holding securities in line with its composition and methodology. Their performance may differ from the benchmark because of expenses, cash holdings and tracking error.

What do 10 Years of Rolling Returns Reveal?

A decade-long study of rolling returns may reveal different market environments, including rallies, corrections and periods of uncertainty. However, the findings depend on the funds selected, the benchmark, the measurement dates and the rolling period used. When reviewing this data, consider the following points:

• Consistency: How frequently did an active fund outperform its benchmark across the measured periods?
• Underperformance: How often did the fund lag behind the benchmark, and how significant were the differences?
• Volatility: Did the fund experience greater fluctuations than its benchmark?
• Costs: Did the fund’s expenses influence the difference between the fund’s performance and that of its benchmark?

A rolling return analysis does not automatically show which approach is more suitable. It helps reveal patterns that a single point-to-point comparison may overlook.

Why Does Your Investment Horizon Matter?

Your investment timeline plays an important role in choosing the right fund. If you are investing for a long-term goal, looking at how a fund performs across different market conditions can help you understand its consistency better than looking at recent returns alone.

You could also explore lifecycle funds, which are designed around a specific investment goal or time horizon, such as retirement. These funds typically adjust their asset allocation as the target date approaches, that is, shifting from equities towards relatively more stable investments, such as debt.

These differ from large-cap funds and index funds, so they should be assessed based on their objectives and allocation strategies.

Final Thoughts

Ten years of rolling returns can offer useful insights into the consistency of active large-cap funds and index funds. However, the results will depend on the benchmark, measurement period, costs and market conditions. Rather than relying on a single performance figure, examine multiple rolling periods alongside risk, expenses and investment objectives. This may help you form a more balanced perspective, assuming that the historical patterns will continue.