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investing

Putting money into assets such as shares or bonds for years, accepting ups and downs in exchange for a higher expected return.

Investing means putting money into assets such as company shares or bonds and holding them for years. A share is a small slice of a company's future profits; a bond is a loan that pays interest. In exchange for living with ups and downs along the way, an investor expects a higher return than a deposit or cash in a drawer.

It helps to keep three things apart. Saving keeps money safe and ready to use, like an emergency cushion. Investing is for money you won't need for at least five years, so a bad year has time to recover. Speculating is a short bet on a price move, closer to trading than to owning a business.

The honest way to describe investing is a range, not a number. A broad stock fund can average a few percent a year above inflation over decades, yet any single year can be deeply negative. That is why long-term investors build a cushion first, spread their money widely and keep costs low.

Example

At Zapas, a beta user puts $150 a month into a world stock fund for 25 years: $45,000 paid in. Across 2,000 simulated paths of a synthetic market, the middle result after 25 years is about $106,225 in today's money. One path in ten ends below $57,544, and one in ten above $189,828.

After 5 years, 21.6% of the paths are still below the money paid in; after 25 years, only 3.8% are. The example shows why investing needs time and a range; it is not a forecast for any real fund.

Common mistakes

  • Investing money you may need within the next few years.
  • Treating a past average as a promised yearly return.
  • Calling a short bet on a hot theme "investing".
  • Investments can fall, and you can get back less than you put in.

Learn it in the course