Portfolio Building
What is asset allocation?
The split between stocks, bonds and cash shapes how bumpy your portfolio feels. Here is how that split works, why it matters, and how people decide on one.
Portfolio building
A portfolio is everything you have invested, viewed as one whole rather than as separate accounts or funds.
Also in Portfolio Building
Portfolio Building
How does portfolio rebalancing work?
Portfolio Building
What is dollar-cost averaging?
Portfolio Building
What are the main types of investment risk?
New to Portfolio Building? Read in this order
- What are risk tolerance and time horizon?
6 min read
- What is asset allocation?
7 min read
- What is diversification in investing?
5 min read
All Portfolio Building explainers
6 published
Portfolio Building
What is diversification in investing?
Spreading your money lowers the damage any single company or category can do. It does not stop the whole market from falling. Here is the difference, with numbers.
Portfolio Building
How does portfolio rebalancing work?
Markets quietly change your mix of stocks and bonds. Rebalancing is how you put it back. Here is what drift looks like in numbers and the ways people correct it.
Portfolio Building
What is dollar-cost averaging?
Investing the same amount every month buys more shares when prices are low and fewer when they are high. It can ease timing worries, but it does not prevent losses.
Portfolio Building
What are risk tolerance and time horizon?
Two questions sit under every investing plan: how long until you need the money, and how much of a drop you can live with. Here is how to think about both.
Portfolio Building
What are the main types of investment risk?
Risk is not one thing. A savings account, a bond and a foreign stock each carry different dangers. Here are seven to recognise, what causes them, and what tends to reduce them.
Terms used in this section
Glossary A–ZAbout this section
A portfolio is everything you have invested, viewed as one whole rather than as separate accounts or funds. Building one is less about picking winners and more about a few structural decisions: how to split money between stocks, bonds and cash, how widely to spread it within each of those, and how to keep that mix close to your plan as markets move. These guides explain each decision in plain English, using definitions from the SEC's Investor.gov and FINRA, with worked examples whose numbers are calculated in code rather than estimated.
If you are new, start with your time horizon and risk tolerance, because they shape everything else. Then read how asset allocation and diversification work together, and how rebalancing keeps a mix from drifting into something riskier than you chose. The guide to dollar-cost averaging shows what investing on a fixed schedule can and cannot do, and the overview of investment risk types explains why even cash and bonds carry risks of their own. Nothing here is a recommendation: the aim is to help you understand the trade-offs well enough to make your own decisions or ask better questions.