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Is there any reason to choose my bank's index fund over Vanguard?
Your bank's fund is not an index fund.  From your link: To provide a balanced portfolio of primarily Canadian securities that produce income and capital appreciation by investing primarily in Canadian money market instruments, debt securities and common and preferred shares. This is a very broad actively managed fund.  Compare this to the investment objective listed for Vanguard's VOO: Invests in stocks in the S&P 500 Index, representing 500 of the largest U.S. companies. There are loads of market indices with varying formulas that are supposed to track the performance of a market or market segment that they intend to track.  The Russel 2000, The Wilshire 1000, The S&P 500, the Dow Industrial Average, there is even the SSGA Gender Diversity Index.  Some body comes up with a market index.  An "Index Fund" is simply a Mutual Fund or Exchange Traded Fund (ETF) that uses a market index formula to make it's investment decisions enabling an investor to track the performance of the index without having to buy and sell the constituent securities on their own.  These "index funds" are able to charge lower fees because they spend $0 on research, and only make investment decisions in order to track the holdings of the index. I think 1.2% is too high, but I'm coming from the US investing world it might not be that high compared to Canadian offerings.  Additionally, comparing this fund's expense ratio to the Vanguard 500 or Total Market index fund is nonsensical. Similarly, comparing the investment returns is nonsensical because one tracks the S&P 500 and one does not, nor does it seek to (as an example the #5 largest holding of the CIBC fund is a Government of Canada 2045 3.5% bond). Everyone should diversify their holdings and adjust their investment allocations as they age.  As you age you should be reallocating away from highly volatile common stock and in to assets classes that are historically more stable/less volatile like national government debt and high grade corporate/local government debt.  This fund is already diversified in to some debt instruments, depending on your age and other asset allocations this might not be the best place to put your money regardless of the fees. Personally, I handle my own asset allocations and I'm split between Large, Mid and Small cap low-fee index funds, and the lowest cost high grade debt funds available to me.