Spreading money across many investments reduces dependence on one company, sector, or outcome.

Words to know

  • Investment: Something bought with the hope that it may grow in value or produce income. Its value can also fall.
  • Diversification: Spreading money across many investments so one result has less control over the whole account.
  • Expense ratio: A yearly fund fee shown as a percentage of the money invested in the fund.

The main idea

Diversification cannot prevent every loss, but it can reduce concentration risk.

Use this lesson as a starting point. Check the current numbers, written terms, and dates that apply to you. If a detail is missing, leave it blank until an official record or qualified professional can confirm it.

What can change the answer

  • Time horizon, ability to accept loss, and the goal all affect risk choices.
  • Diversification can reduce concentration risk but cannot prevent every loss.
  • Small ongoing fees can reduce long-term results.

Three things to remember

  • Reduce concentration
  • Diversify within and across assets
  • Rebalance periodically
ExampleOwning a broad-market fund is different from placing the same amount into one employer’s stock.

Common mistakes to avoid

  • Investing money needed for an important near-term bill.
  • Assuming several funds are diversified without checking their holdings.
  • Buying an investment that cannot be explained in plain language.

Try these steps

  • List concentrated positions
  • Read fund composition
  • Set a review date

Questions to ask yourself

  • When will this money be needed?
  • What could make the investment lose value?
  • What fees are charged and where are they disclosed?
Choose one small step now. Write down what you checked, what is still missing, and when you will review it again. Small recorded steps are easier to repeat and correct.
Educational information only. Rules, prices, and product terms can change. Confirm important details with the linked official sources or a qualified professional before acting.

Official resources

Use these primary sources to verify current rules and guidance before acting.