The three core principles of effective index fund investing

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Index funds — a portfolio or group of stocks designed to mimic the performance of existing stock market indexes (^DJI, ^IXIC, ^GSPC) — generally have a 97% chance of outperforming regular markets based on portfolio composition, according to Ferri Investment Solutions CEO Richard Ferri, CFA.

Ferri, the host of The Bogleheads on Investing podcast, joins Yahoo Finance Live to walk through the fundamentals of index investing and creating a long-term investment strategy for one's portfolio.

"The discipline part is to fully implement that and maintain it basically over the rest of your life. There will be times in life where you're transitioning from working to retirement where you may wish to have more say fixed-income or bonds in your portfolio than equity at that point, but those are just adjusting the sales on this philosophy of indexing that you've created," Ferri states. "It is a lifelong investment strategy that works for basically everybody including some of the very largest pension funds out there,"

For more expert insight and the latest market action, click here to watch this full episode of Wealth!

Editor's note: This article was written by Luke Carberry Mogan.

Video Transcript

- Well, the journey to building wealth is a long and winding road. You'll come across many different investment opportunities in your lifetime. But one option that stands the test of time are index funds. Now index funds are a group of stocks that aim to mirror the performance of an existing stock market index like the S&P 500. Now they are well known for their low cost and potential for long-term growth. But with so many index funds to choose from, how do you know which one is the right one for your portfolio?

Well, for more on the success behind investing in index funds, I'm joined by Rick Ferri, Ferri Investment Solutions CEO and host of Bogleheads on Investing Podcast. Good to see you this morning. So first want to break down the three steps that you lay out when it comes to how we should approach index investing, the first one being philosophy. Walk us through that.

RICK FERRI: So the philosophy of indexing is broken down into two different paths. You could either decide you're going to outperform the markets and listen to all the pundits talking about how they have the right strategy to do that and they have the right fund to do that. Or you could just throw that all out the window and say, I just want to own the casino rather than be the casino. And owning the casino, we find over very long periods of time outperforms the other way of doing it substantially.