Index Funds have started gaining immense popularity in recent times across the Indian investment markets, resulting in a number of index fund launches. These funds track different indices like the NIFTY 50, Sensex, NIFTY Next 50, NIFTY 100, etc. These schemes involve certain concepts such as tracking differences and tracking errors that is often not understood by investors.
In this article, we will talk in detail about tracking error in Index Funds, why it occurs, some of its advantages/disadvantages, and what investors should do with regard to tracking error while investing in an Index Fund.
Tracking error is the relative risk of an investment portfolio as compared to its benchmark index. It can be used to measure an investment’s performance, especially in comparing the performance against the benchmark over a specific period. Thus, tracking error is an indicator to understand how well a fund is being managed and the risks involved for investors.
In layman’s terms, tracking error is the difference between an investment portfolio’s returns and the index it mirrors. It is a handy measurement of the performance of portfolio managers. It is also known as an active risk for gauging the performance of hedge funds, ETFs, or mutual funds.
Let us understand this with the help of an example. Suppose an index has gained 4% in a month. If the index fund that tracks the index has gained 3.5% in the same month, then the monthly tracking error will be the difference, which is 0.5%. Even if the fund returns are 4.5%, the tracking error will be 0.5%.
There are 3 main reasons why a tracking error may occur in Index Funds. Here’s a look at each of these in detail:
Mutual funds expenses could include the cost of buying and selling stocks, fund management fees, administration charges, etc which makes up the expense ratio of a mutual fund. The thumb rule is that the higher the expenses, the higher the tracking error. To limit the tracking error arising from higher expenses, fund managers often use many techniques like portfolio rebalancing, managing dividends, using Index Futures, lending securities, and fixed-income investments.
Mutual funds usually don’t invest 100% of their assets. Most funds keep aside 2 to 5% of investable assets in cash or parked in highly liquid debt instruments for managing redemptions.
An Index Fund may get an inflow of cash in case of a sudden rise in investment or dividend payouts through stocks within the portfolio. In such cases, a fund manager may take a while to reinvest additional money and this can result in an increase in tracking error.
Tracking errors could also arise due to an index fund’s inability to buy or sell the underlying stocks. This could occur due to low liquidity levels or sudden market movements that trigger volatility in specific stocks. Such situations are often seen in sectoral or thematic funds that have larger tracking errors.
Here are some of the pointers indicating the importance of tracking error –
Investors must keep in mind the below-mentioned limitations of tracking error –
Tracking error can be used to measure both underperformance and outperformance of a fund against its benchmark. Investors often prefer a high tracking error in case of out-performance on the fund’s part. Alternatively, a low tracking error is preferable in case of consistent underperformance. However, tracking error cannot help in instantly distinguishing between the two.
Investors can view tracking error as an indicator of how actively a fund is being managed and associated risk levels. Investors who observe the tracking error of a fund over a period to get sufficient insight into the risk control mechanisms implemented by the fund.
Although rarely focused upon, tracking errors can have a significant effect on an investor’s returns. Therefore, it is important to consider this aspect of any index fund before investing in it.
An index fund should ideally have a tracking error of zero while matching performance to its benchmark. However, in reality, index funds tend to have tracking errors in the 1%-2% range.
Index funds track a market index and are passively managed funds. Therefore, they tend to be less volatile as compared to actively managed equity funds and may have comparatively lower risk levels.
To choose the right index fund for investment, investors should consider factors such as historical tracking error trend of the fund, personal risk appetite against fund’s risk levels, and also historical returns generated by the fund.
Low tracking error is an indication that a fund is closely following its benchmark index. High tracking error indicates the opposite. In summary, investors can get a sense of how closely a fund is following its benchmark or how volatile the fund is relative to its benchmark index.
Tracking difference measures the difference between an index fund’s returns and the benchmark index. Tracking error is an indicator of the variability between the individual data points that contribute to the fund’s average tracking difference.
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