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Module 6 - Investing Foundations

Fees and Common Investing Mistakes

Learn why fees, concentration, speculation, and emotion matter.

8-12 min
Free lesson

What you'll learn

  • Identify common investing mistakes
  • Explain why costs affect outcomes

Investing costs reduce what remains for the investor. Fees can include fund expense ratios, trading costs, advice fees, account charges, or spreads. Small percentages can matter over long periods.

Common mistakes to watch for

  • Concentrating too much in one company, sector, or idea.
  • Chasing recent performance without understanding risk.
  • Ignoring fees and taxes.
  • Treating speculation as a guaranteed plan.
  • Reacting emotionally to normal volatility.

No return is guaranteed

Lower fees can improve the odds of keeping more of an investment's return, but fees alone do not guarantee gains or prevent losses.

Example

Two funds with similar holdings but different fees may produce different net results. The higher-cost option needs stronger performance just to keep up after costs.

Interactive exercise

Spot the investing issue

Classify each behavior by the risk it most clearly shows.

Cards

Ignoring a high expense ratio

Select a card, then assign it with these buttons. This works with mouse, touch, or keyboard.

Lesson Progress

Finish the activity to complete this lesson.

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