Unit 3 · Level 1 · Index investing
The one-fund portfolio
A single fund tracking a world index embarrasses many complicated portfolios. One purchase buys you a slice of over a thousand companies across dozens of countries and industries: tech, healthcare, energy, everything. No country bets, no stock picks, no juggling. Many seasoned investors treat that simplicity as the destination, not a beginner's compromise.
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What you get asked
What does one world index fund actually buy you?
A world index fund holds companies across dozens of developed markets: one ticket, most of the world's stock market value.
Nokia was once over half of Finland's stock market, then collapsed with the smartphone era. What's the lesson for country-heavy portfolios?
In a world fund, even a national giant failing is a ripple, not a wave. Betting on your home market alone means betting on its biggest names.
Order the steps of the classic simple strategy
Five steps, one afternoon to set up, a lifetime of quiet compounding. The hardest step is number four, and it never stops being step four.
Spreading money across many companies, industries and countries is called ___.
Diversification is the free lunch, and a world index fund is the all-you-can-eat version: maximum spread for minimum effort.
Why do many experienced investors deliberately CHOOSE a one-fund world portfolio?
It still falls in crashes; nothing exempts you from those. But it removes the two classic self-inflicted wounds: picking wrong and fiddling too much. Boring is a feature. 🐜
The rest of this unit
Why buying the whole haystack beats hunting for the needle.