Understanding ETFs and Index Funds

How index funds and ETFs actually work, what an expense ratio really costs you, and how to size up any fund before you buy.

What an ETF Is and How It's Different From a Mutual Fund (Plain Language)
Not sure what an ETF actually is or how it differs from a mutual fund? This plain-language guide builds the mental model from scratch, with a clear verdict.
26 May 2026 · understanding-etfs-and-index-funds