Basically, what are index funds These funds mirror the performance of a stock market index, by investing in the same stocks as the index, including the number of stocks. The reason: to ensure that returns from an index fund toe the line of that of the index. In India, most funds track either the BSE Sensex or the S&P CNX Nifty. However, index funds dont track other indices such as the BSE 100, BSE 200 and S&P CNX 500. Following their stated objective of tracking an index, index funds follow a passive investment strategy. The portfolio turnover is limited to re-balancing arising out of new subscriptions, redemptions, dividend payout and changes in the composition of the index. So, should one expect returns from these schemes to exactly match that of the index This does not happen in reality and usually there is a small difference between the return of the index and the fund. Such deviations are known as tracking errors and arise out of a number of factors.
Any delay in the purchase or sale of shares due to illiquidity in the market, delay in registration of securities or other causes may cause a tracking error. The S&P CNX Nifty/BSE Sensex reflect the price of securities at a particular point in time, which is the price at the close of a business day. The scheme may however, buy or sell these securities at different points during the trading session. Therefore, prices at which the scheme trades may not be identical to prices, which are registered for the day. This can cause difference in returns for the fund and the benchmark.
The index providers during their review of indices may make a change in their composition. In such an event, if the re-allocation process does not take place instantaneously a precise mirroring between the index and the benchmark may not happen. By virtue of being an open-ended scheme, the fund may hold appropriate levels of cash or cash equivalents to fund redemption, which happen on an on-going basis. Besides the expenses charged by the fund, the very process of investing requires payment of brokerage, which will eat into returns.
One thing is clear that index funds arent designed to be chartbusters. To this end, an index fund is more or less managed by a robot -- the fund manager will simply buy shares in a given index. And unlike an active equity fund manager, he will not be tempted to indulge in active trading.
However, in the case of actively managed equity funds, a fund manager can make costly mistakes, such as not being invested when the market goes up, being too aggressive when the market plummets, or just being in the wrong stocks. An actively managed fund can easily underperform the overall market index that it is competing against. An index fund, by definition, cant.
Index funds make great sense for investors who fear that fund managers may make mistakes and underperform the market. Many investors, especially the believers of Efficient Market Theory, have reason to favour index funds on the assumption that trying to beat the market averages over the long run is futile, and their investments in these funds will at least keep up with the market. One of the important features of index funds is that costs to investors are kept low. Investors should examine expense ratios of their index funds, which should be lower than that of its actively managed counterparts.
My pick among index funds is IDBI Principal Index Fund. This fund tracks the S&P CNX Nifty and has the lowest tracking error in the past one year vis-a-vis peers. Among funds that track the Sensex, UTI Master Index has the lowest tracking error. Value Research