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Investing Basics: Index Funds

Understand risk, diversification and low-cost index investing from first principles.

76 learners

Created by Ben Adeyemi · Updated October 22, 2026

  • Beginner
  • 35 min total
  • 9 lessons
  • Self-paced

What you’ll learn

  • Explain risk, return and time horizon in plain language
  • Understand diversification and why it reduces risk
  • Compare funds on costs and what they hold
  • Build a simple, long-term investing habit

Course content

3 sections · 9 lessons · 35 min

How investing works3 lessons · 10 min
  • Saving versus investingVideo · 8 min
  • Risk and time horizonReading · 1 min
  • CompoundingReading · 1 min
Index funds3 lessons · 13 min
  • What an index fund holdsVideo · 11 min
  • DiversificationReading · 1 min
  • Why costs matterReading · 1 min
Building the habit3 lessons · 12 min
  • Setting up a monthly investmentVideo · 10 min
  • Investing regularlyReading · 1 min
  • Staying the courseReading · 1 min

Requirements

  • An emergency fund in place is recommended first
  • No investing experience needed

Description

Investing doesn't need to be complicated or expensive. This course explains how markets reward long-term investors, why diversification and low costs matter, and how index funds put both within reach of anyone. It's an educational introduction, not individual financial advice. Speak to a qualified adviser about your own situation.

Instructor

Ben Adeyemi

Personal finance educator

  • 4.5 instructor rating
  • 46 reviews
  • 109 learners
  • 2 courses

I teach personal finance in plain language: budgeting, saving and long-term investing, without hype or jargon. My courses are educational and not individual financial advice.

4.5 course rating · 24 reviews

5 ★63%
4 ★29%
3 ★8%
2 ★0%
1 ★0%
  • Mei Rossi · Oct 22, 2026

    Well structured and easy to follow. Exactly what I needed.

  • Sam Kapoor · Oct 22, 2026

    Good course overall. A couple of lessons could go deeper.

  • Elena Larsen · Oct 22, 2026

    Practical from the very first lesson.

  • Fatima Sharma · Oct 22, 2026

    Decent introduction, but I already knew most of it.

  • Sneha Smith · Oct 22, 2026

    Great value. I applied it at work the next day.

  • Rohan Menon · Oct 22, 2026

    The instructor explains things really clearly.

  • Neel Singh · Oct 22, 2026

    Clear and friendly teaching style.

  • Leila Banerjee · Oct 22, 2026

    Much better than the free videos I tried before.

  • Mateo Novak · Oct 22, 2026

    Well structured and easy to follow. Exactly what I needed.

  • Ingrid Kim · Oct 22, 2026

    Decent introduction, but I already knew most of it.

  • Nisha Pillai · Oct 22, 2026

    The instructor explains things really clearly.

  • Noah Haddad · Oct 22, 2026

    Clear and friendly teaching style.

  • Emma Martin · Oct 22, 2026

    Well structured and easy to follow. Exactly what I needed.

  • Marco Gupta · Oct 22, 2026

    Short lessons that fit around work. Finished it in a week.

  • Kwame Patel · Oct 22, 2026

    Useful and to the point. I'd recommend it to colleagues.

  • Omar Silva · Oct 22, 2026

    The instructor explains things really clearly.

  • Karan Hassan · Oct 22, 2026

    Good course overall. A couple of lessons could go deeper.

  • Ayesha Joshi · Oct 22, 2026

    Started a monthly SIP after this. Wish I'd started years ago.

  • Alex Ahmed · Oct 22, 2026

    Short lessons that fit around work. Finished it in a week.

  • Amara Rao · Oct 22, 2026

    Helpful content. Would love a follow-up course.

  • Zara Reddy · Oct 22, 2026

    Clearest explanation of index funds I've found. No hype, just the facts.

  • Diya Chopra · Oct 22, 2026

    Ben makes investing feel approachable.

  • Siddharth Müller · Oct 22, 2026

    Great introduction. Appreciated the honesty about risk.

  • Liam Costa · Oct 22, 2026

    The section on fees made me switch funds. Big difference over time.