Diversification Through Funds
Plain English
Instead of picking individual stocks or bonds, a fund pools money from many investors to buy a whole basket of them at once — an easy way to diversify without having to research and buy dozens of securities yourself.
What is it?
A mutual fund or exchange-traded fund (ETF) pools investor money to buy a basket of underlying securities (stocks, bonds, or both), with each investor owning a proportional share of the fund itself. Funds may be actively managed (a manager picks holdings) or passively index-tracking (the fund simply mirrors a market index).
Why does it matter?
Funds are one of the most common ways individual investors achieve diversification (see the Risk Education module) without needing the capital or expertise to buy dozens of individual securities directly.
How does it work?
Mutual fund shares are priced once per day (net asset value); ETF shares trade throughout the day on an exchange like a stock. Both charge an expense ratio — an ongoing fee, expressed as a percentage of assets, that reduces returns regardless of performance.
Risks and limitations
A fund still carries the market risk of whatever it holds — diversification reduces concentration risk, not market risk overall. Expense ratios compound over time: a seemingly small annual fee can meaningfully reduce long-term returns.
Questions to ask a professional
What is this fund's expense ratio? Is it actively managed or index-tracking, and does the fee match that? What index or strategy does it actually track?