Fees: The Silent Compounder

What you'll learn

• ✓Compute the long-term cost of an expense ratio
• ✓Name the main fee types
• ✓Find fees in a fund document

Lessons

1. 🪞
   Two Friends, One Market

   Same fund, same returns, $30,800 apart
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2. Why the Bite Grows

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3. The Fee Zoo

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4. Where Fees Hide

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5. Final Boss: Read the Price Tag

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Sources

All content is drawn from the sources below. We deliberately avoid unverified material.

• How Fees and Expenses Affect Your Investment Portfolio (Investor Bulletin)
  U.S. Securities and Exchange Commission, Office of Investor Education and Advocacy · institutional
  Source of the regulator's own example used in lessons 2 and 4: $100,000 at 4% over 20 years, a 1% fee vs 0.25% leaves nearly $30,000 less.
  https://www.sec.gov/investor/alerts/ib_fees_expenses.pdf
• Trends in the Expenses and Fees of Funds, 2024
  Investment Company Institute (ICI Research Perspective, 2025) · data
  Backs the expense ratio figures in lessons 3 and 5: simple average equity mutual fund 1.10%, asset-weighted 0.40% (down from 0.99% in 2000), index equity ETFs 0.14%.
  https://www.ici.org/files/2025/per31-01.pdf
• Mutual Fund and ETF Fees and Expenses (Investor Bulletin)
  U.S. Securities and Exchange Commission / Investor.gov · institutional
  Plain-language taxonomy of fund fees (expense ratios, loads, transaction costs) behind the fee zoo in lesson 3, and the prospectus fee table guidance in lesson 4.
  https://www.investor.gov/introduction-investing/general-resources/news-alerts/alerts-bulletins/investor-bulletins/mutual-fund-and-etf-fees-and-expenses
• Breakpoints (sales charge discounts on Class A shares)
  FINRA · institutional
  Documents front-end loads commonly up to 5.75% with breakpoint discounts at larger investment sizes; FINRA rules cap sales charges at 8.5%. Used in lesson 3.
  https://www.finra.org/rules-guidance/key-topics/breakpoints
• The Little Book of Common Sense Investing
  John C. Bogle (Wiley, 2007) · book
  Source for 'the tyranny of compounding costs' framing in lesson 2 and the fee-compression story linking this module to etfs-and-index-funds.
• Key Information Documents for packaged retail and insurance-based investment products (PRIIPs)
  European Commission · institutional
  EU/UK requirement behind lesson 4: the KID discloses costs in both percentage and money terms. Cited as the rules-vary-by-country counterpart to the US prospectus.
• Hedge Funds (investor education)
  U.S. Securities and Exchange Commission / Investor.gov · institutional
  Background for the 2-and-20 structure recalled in lessons 3 and 5: a management fee on assets plus a performance share of profits.
• US Fund Expenses and Fees (2024 Fact Book, chapter 6)
  Investment Company Institute · data
  Long-run fee compression context: how investor migration toward low-cost funds pulled asset-weighted expense ratios down over two decades. Complements the 2024 fee figures in lesson 3.
  https://www.icifactbook.org/pdf/2024-factbook-ch6.pdf
• Module calculations
  Computed for this module · reference
  All 30-year figures ($76,123 / $74,017 / $57,435 / $43,219, gaps of $16,582 and $30,798, haircuts of 2.8% / 24.5% / 43.2%) computed as $10,000 * (1 + 0.07 - fee)^30, the standard teaching approximation where the fee is netted from the annual return.