Lesson 4 · Written for kid, teen, and little
Spreading your bets
Why one bad pick shouldn't sink everything you own.
Diversification means owning different investments so you depend less on any one of them. If you own only one company's stock and it becomes worthless, you could lose all the money in that stock. In a fund spread across many companies, the effect of one company failing depends on how much of the fund it makes up. Diversification can reduce some risks, but it cannot prevent every loss. The kid version: don't put all your eggs in one basket.
Words to know
5Diversification
Spreading investments across different holdings can reduce dependence on any one of them. The effect of one loss depends on its weight, and diversification cannot prevent all losses.
Concentration
Putting a large share of your money in one investment makes you depend heavily on it. If a $500 stock investment becomes worthless, that investment loses $500.
Volatility
How much an investment’s price varies over time. Both individual stocks and funds can have large price changes.
Correlation
How investment returns move together. Two investments affected by the same news may move similarly, but that relationship can change.
Index fund
A fund designed to follow an index. Its holdings depend on that index; a broad stock index fund can spread money across many companies.
Split a hypothetical $10,000 across stocks, bonds and a 'hot pick'. Run 20 simulated paths using example assumptions, not market forecasts.
Try 100% Hot Pick first. Look at the lowest of these 20 simulated outcomes. Then try a mix and compare.
Goal: keep the worst simulated ending balance at $8,000 or more.
Your allocation
100%
In the full lesson
- 1Sort into groups
- 2Build a portfolio
- 3Make the call
Vine has 107 lessons like this one, each written three ways so a 7-year-old and a 17-year-old both get a version that fits.
The practice portfolio is open.
Start practicingMore in Start here
- 🏢What is a stock?How owning a share means owning the business.
- 📈Why prices moveNews, demand, and what people believe.
- 🛒Needs vs. WantsNeeds keep you okay; wants make life fun — and knowing which is which protects your money.
- 🥧Making a BudgetA budget is a plan you make for your money before you spend it.
- ⚖️The Hidden Cost of ChoosingEvery yes to one thing is a quiet no to something else.
- ⚖️Why Prices Go Up and DownPrice is a tug-of-war between how much exists and how many people want it.