But does it make sense to own these lowest cost funds, or are there other factors to consider? The first thing to note is that these Exchange Traded Funds (ETFs) can be a good deal for long-term investors. ETFs have evolved since their introduction 30 years ago, and are now extremely cheap and broadly effective at tracking underlying markets. CommissionsExpense ratios are now so low for these ETFs, that trading commissions may be a bigger cost than the expense ratio. With a larger investment amount, or for a longer investment period, your expense ratio becomes a larger cost relative to commissions.

Source: Forbes April 28, 2018 12:00 UTC