History & SocietyScience & TechBiographiesAnimals & NatureGeography & TravelArts & CultureProConGames & QuizzesVideosToday in HistoryDictionaryHistory & Society
  • History
  • Philosophy & Religion
  • Politics, Law & Government
  • Society & Social Issues
Science & Tech
  • Health & Medicine
  • Science
  • Technology
Biographies
  • Browse Biographies
Animals & Nature
  • Birds, Reptiles & Other Vertebrates
  • Environment
  • Fossils & Geologic Time
  • Insects & Other Invertebrates
  • Mammals
  • Plants
Geography & Travel
  • Geography & Travel
Arts & Culture
  • Entertainment & Pop Culture
  • Literature
  • Sports & Recreation
  • Visual Arts
Image GalleriesPodcastsSummariesTop QuestionsBritannica Kids
Britannica Money
Personal Finance
Investing
Trading
Retirement
Companies
Biographies
Finance & the Economy
Britannica Money Logo
About UsPrivacy PolicyTerms & Conditions
© 2026 EncyclopÊdia Britannica, Inc.
Investing

ETFs & Mutual Funds

Concentration risk management
Investing
Concentration risk: When winners (and company shares) take over your portfolio
Good eggs may need more baskets.
Treasury securities
Investing
Treasury securities: Bonds, notes, and bills
Different maturities, same “full faith and credit” guarantee.

Recently Updated

  • Diversify your portfolio with commodity ETFs And potentially protect against inflation.
  • Understanding mutual funds: Types, investing styles, fees, and other basicsHow mutual funds work.
  • Same fund, different costs: Understanding mutual fund share classesThe ABCs of fees, loads, and expenses.

See All

Authorized participants: The hidden mechanics behind ETF pricing
How ETFs stay liquid, tax efficient, and fairly priced.
Bond funds: Know the types before you choose
Fixed income; flexible choices.
Bond funds: Where fixed-income markets meet diversification
Putting stock in bonds.
Diversify your portfolio with commodity ETFs
And potentially protect against inflation.
Dividend ETFs: Growth and income in one package
Income-producing stocks made easy.
ETFs vs. mutual funds: A comparison of fund types
What are the differences?
Factor ETFs and their smart beta cousins
Can academic researchers help you beat the market?
How to choose mutual funds that fit your goals
Pick funds with confidence.
How to read Morningstar mutual fund ratings
Decoding style boxes, stars, and medals.
Sales loads, 12b-1 fees, and more: A closer look at mutual fund fees
A little slice for management.
Same fund, different costs: Understanding mutual fund share classes
The ABCs of fees, loads, and expenses.
Understanding mutual fund expense ratios
Are you getting your money’s worth?
Understanding mutual funds: Types, investing styles, fees, and other basics
How mutual funds work.
Understanding the complexities of exchange-traded notes (ETNs)
They look like ETFs, but they’re quite different.
Volatility index ETFs and ETNs: Understanding the risks
Risk, complexity, and lagging performance. What’s not to love?
What are closed-end funds, and are they risky?
Yields can be enticing, but understand why.
What are exchange-traded funds (ETFs) and how do they work? An investor guide
They’re like mutual funds, but different.
What to know about leveraged and inverse ETFs
Unless you’re day-trading, steer clear.
SUBSCRIBE