Asset allocation basics
What you'll learn
Understand asset allocation - the stocks vs bonds mix - and how your timeline shapes it.
Asset allocation is how you split your money across different types of investment, most commonly stocks (shares) and bonds. It is one of the biggest decisions you make, because the mix shapes both how much your pot might grow and how much it might wobble along the way.
The two main building blocks
| Asset | Tends to be | Typical role |
|---|---|---|
| Stocks (shares) | Higher growth, bigger swings | Long-term engine |
| Bonds | Steadier, lower growth | Cushion and ballast |
| Cash | Stable, little growth | Money needed soon |
Stocks have historically driven long-term growth but can fall sharply. Bonds usually move more gently. Holding both means part of your pot stays calmer when markets drop.
Your timeline is the guide
The longer until you need the money, the more short-term ups and downs you can ride out:
- Long horizon (decades): more room for stocks, because time smooths volatility.
- Medium horizon: a more even balance of stocks and bonds.
- Short horizon (a few years): lean towards bonds and cash, so a crash does not catch you at the wrong moment.
There is no single correct split. Your mix depends on your goals, when you need the money, and how much falling values would unsettle you. The figures above are illustrative, not a recommendation for you.
Key takeaways
- Asset allocation is the split between stocks, bonds and cash.
- Stocks offer growth with bigger swings; bonds offer steadiness with less growth.
- A longer time horizon generally allows a higher stock share.
- There is no one right mix - it depends on your timeline and risk tolerance.
Illustrative only: example stock-to-bond splits often discussed for different timelines. These are not recommendations or targets for you. Your right mix depends on your goals and risk tolerance. Not a forecast.
Frequently asked questions
Are stocks always better than bonds?
No. Stocks have historically grown more over long periods but swing harder. Bonds are usually steadier but grow less. The point of a mix is to balance growth against how much wobble you can stomach.
How do I know my time horizon?
It is roughly how long until you need the money. Money for decades away can take more risk; money you need in a year or two should sit somewhere far steadier.
Does asset allocation matter more than fund picking?
For many investors the broad mix of stocks and bonds shapes the experience more than which specific funds they pick. It is worth getting the mix roughly right.
General information, not financial advice. The value of investments can fall as well as rise, and figures and rules can change; check the current position before acting.