In the following video, Fool contributor Matt Thalman discusses a number of reasons he believes owning an index fund is the best option for the average investor, as opposed to buying a mutual fund. Matt previously went into further detail discussing why investors are better off with a simple easy index fund based on management, expenses, and returns.

To learn more about each, click here for management, here to learn more about the differences with expenses, and here at how overall returns differ from mutual funds to a simple index fund, click here.

Fool contributor Matt Thalman and The Motley Fool have no position in any of the stocks mentioned. Check back Monday through Friday as Matt explains what caused the Dow's winners and losers of the day, and every Saturday for a weekly recap. Follow Matt on Twitter: @mthalman5513. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.