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Not investment advice. Educational reading. See Disclaimer.
L.3 · BEGINNER · 2 MIN

The Three-Fund Portfolio

Once you know your stock-vs-bond split, you need actual funds to fill it. The simplest portfolio that professional investors genuinely respect is the 'three-fund portfolio,' popularized by the Bogleheads community: one fund for US stocks, one for international stocks, and one for bonds. Three funds, a small amount of money, and you own a slice of essentially every public company on earth plus a bond cushion.

Quiz · 5 questions ↓

The three funds and what each holds

FundWhat it holdsExample ticker
US total stock marketEvery US public company, large and smallVTI
International total stock marketDeveloped and emerging markets outside the USVXUS
US total bond marketThousands of investment-grade US bondsBND

A starting mix of the three funds by age

A common starting mix by age: a 25-year-old might hold roughly 60% VTI / 30% VXUS / 10% BND; a 45-year-old 50 / 25 / 25; a 65-year-old 35 / 15 / 50 -- more bonds as the horizon shortens. These are starting points, not gospel: the bond slice is really a function of your time horizon and how well you sleep during a crash.

Model a three-fund mix in your portfolio

In the **Portfolio** view, model a simple three-fund mix -- say 60% VTI, 30% VXUS, 10% BND -- and look at the blended picture. You now hold thousands of companies across just three holdings.

Why the three-fund portfolio wins

The three-fund portfolio wins not because it is clever but because it is cheap, diversified, and boring enough to leave alone. William Bernstein's free pamphlet 'If You Can' argues that a young saver who simply buys these three funds and ignores the noise will beat most professionals over a lifetime.

Its edge over picking individual stocks

What's the main advantage of a three-fund portfolio over picking 20 individual stocks?
Check your understanding

Sit with the ideas.

A three-fund portfolio is VTI + VXUS + BND. What do those three cover, together?

Why:
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