What a fund actually is, how fund returns are made, how funds are priced and traded, evaluating one specific fund, its risks, costs and taxes, and where funds fit in a portfolio.
Buying a whole basket at once
Lessons
A fund is a wrapper, not an asset class of its own — Buying a fund buys a proportional claim on whatever it holds. Until you have opened the holdings list, the name on the ticket tells you almost nothing about what you own. (9 min)
The fund manufactures nothing: pass-through, minus costs — A fund's return is the weighted return of its holdings less what it charges. Knowing that changes what you are actually forecasting when you forecast a fund. (11 min)
Two prices: what the holdings are worth, and what somebody will pay — Net asset value is an accounting fact struck at a moment. An exchange-traded fund's market price is a live opinion. The gap between them is sometimes a mispricing and sometimes the more honest number. (12 min)