Which statement CORRECTLY describes index mutual funds and traditional exchange-traded funds (ETFs)?

Index mutual funds and traditional exchange-traded funds (ETFs) are both types of investment funds that use a passive investment management style, which means they try to track the performance of a specific market index, such as the S&P/TSX Composite Index or the S&P 500 Index. They do so by holding the same securities as the index or a representative sample of them, and by adjusting their portfolio composition and weighting to reflect any changes in the index. However, both types of funds may not be able to exactly replicate the return of the index for various reasons, such as fees, expenses, tracking error, rebalancing frequency, dividend reinvestment, and cash holdings. Therefore, there may be some deviation or difference between the fund’s return and the index’s return, which is called tracking difference.

Canadian Investment Funds Course, Chapter 4: Types of Investments1