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Growing · Investing

What's an index fund, and why it usually wins

An index fund is an investment that buys a tiny slice of hundreds or thousands of companies at once, instead of betting on one. There are two ways to invest: bet everything on the single company you're sure will moon, or quietly own a slice of all of them. Over 20 years, owning everything usually wins, and it isn't close. Even the professionals, with their suits and fees, mostly fail to beat the index.

What's an index fund, and why it usually wins

Why does an index fund beat stock-picking?

Because picking the future winner is far harder than it looks, and the cost of being wrong is steep. Owning the whole market means you automatically hold every winner without having to guess. In the simulator, betting $10,000 on one random company is a gamble; the index quietly turns $10,000 into about $39,000 over 20 years, every time.

What about fees?

Fees are a silent drag that compounds against you, the same way returns compound for you. Index funds are typically very low-cost because no expensive manager is trying to outsmart the market. Keeping fees tiny is one of the few free wins in investing. Saving $100 a month for 30 years at 7%, a fee of 0.05% a year costs about $1,197 by the end; a fee of 1% costs about $21,546.

What's the strategy in one line?

Don't hunt for the needle: buy the haystack. Own the broad market, keep fees low, and let time compound it. It's deeply boring, and boring is, annoyingly, the approach that tends to win.

Questions

Frequently asked

Are index funds a good investment for beginners?

They're widely considered one of the simplest sensible starting points: instant diversification, low fees, and no need to pick individual stocks. Many long-term investors hold little else.

Can't I just beat the market by picking good stocks?

A few people do, but most, including professional fund managers, underperform a simple index over long periods, especially after fees. The odds, and the math of fees, favor owning everything.

Keep going

Live it: forty years in one sitting.

Walk one road from 25 to 65, choose how your savings are split each year, and see what the market does to the mix.

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