Investment terms can sound intimidating, but the main building blocks are straightforward. Most portfolios are made from three things: stocks, bonds and funds that hold a mix of them. This guide explains what each one is and how they differ.
Stocks (shares)
A stock represents a small ownership stake in a company. If the company grows and becomes more profitable, the share price may rise. Some companies also pay part of their profits to shareholders as dividends. The flip side is that prices can fall sharply, and in the worst case a company can fail and the shares lose most or all of their value.
Bonds
A bond is a loan. You lend money to a government or company, and they promise to pay regular interest and return the original amount on a set date. Bonds are often less volatile than stocks, but they are not risk-free. The issuer could fail to pay, and bond prices can fall when interest rates rise.
Funds
A fund pools money from many investors and spends it on a collection of assets. Instead of choosing individual companies, you buy a slice of the whole collection. Common types include:
- Index funds, which aim to track a market index rather than beat it.
- Actively managed funds, where a manager selects investments, usually at a higher cost.
- Exchange-traded funds (ETFs), which are funds that trade on an exchange like a share.
Side-by-side comparison
| Type | What you own | How it can earn | Main risk |
|---|---|---|---|
| Stocks | Part of a company | Price growth, dividends | Large price swings, company failure |
| Bonds | A loan to a borrower | Interest payments | Default, falling prices when rates rise |
| Funds | A basket of assets | Depends on contents | Market risk plus fees |
Which is right for you?
There is no single answer. It depends on your goals, timeline and comfort with ups and downs. Younger investors with long horizons often hold a larger share of stocks, while those nearing a goal may prefer more bonds and cash. Whatever you choose, check the fees, read the fund documents and avoid putting everything into one holding.
Index funds and ETFs in plain language
Two types of fund appear often in beginner guides. An index fund aims to match a market index, such as a broad group of large companies, rather than trying to beat it. An exchange-traded fund, or ETF, is a fund that trades on a stock exchange like a share. Both can offer wide diversification at relatively low cost, which is why they are popular building blocks for long-term investors.
Neither type removes risk. If the market they track falls, the fund falls too. The advantage is that you are not relying on one company or one decision. Always read the fund factsheet to see what it holds, what it charges and how it is regulated.
How the three work together
Stocks, bonds and funds are not competitors; they are tools. Many people hold a mix, with stocks aiming for growth and bonds adding stability. A fund can contain either, or both. As your goals get closer, you might hold more stable assets to reduce the effect of a sudden market drop, while a long-term goal can tolerate more ups and downs.
The right mix is personal. Think about when you will need the money, how you would feel if your balance dropped by a fifth, and what else you own. If you are unsure, an independent licensed adviser can help you match the mix to your situation.
Questions to ask before you buy anything
Whatever type of investment you consider, a few questions apply every time. What exactly am I buying, and how does it make money? What are the total costs, including ongoing fees? How could it lose value, and could I handle that? When will I need the money back, and can I sell easily if I do? Who regulates the provider, and what protection exists if something goes wrong?
If you cannot explain an investment in a couple of simple sentences, you probably do not understand it well enough yet. That is not a failure; it is a signal to learn more or choose something simpler. Be especially careful with offers that promise high returns with little risk, since higher potential return almost always comes with higher risk. Reading the official fact sheet and speaking with a licensed adviser can save you from costly misunderstandings.
This article explains concepts only and does not recommend any specific investment.
Frequently asked questions
What is the difference between stocks and bonds?
A stock is a share of ownership in a company, with returns that vary. A bond is a loan to a government or company that usually pays interest and returns the principal at maturity.
Are funds safer than individual stocks?
Funds spread money across many holdings, which reduces the impact of any single failure. They can still lose value if the broader market falls.
What is an ETF?
An exchange-traded fund is a pooled fund that trades on a stock exchange like a share and often tracks an index.
Do bonds ever lose money?
Yes. Bond prices can fall when interest rates rise, and issuers can fail to pay. They are generally less volatile than stocks but not risk-free.
