What it means
The base of the pyramid holds low-risk, easily accessed assets such as cash, savings accounts and short-term government securities. These protect your capital and give you a cushion for emergencies, but they usually earn modest returns.
Because the base is wide, it represents the largest part of a cautious portfolio. The middle layer typically holds assets with moderate risk and higher expected growth, such as diversified share funds, bonds issued by companies and property.
They can lose value in the short term but are expected to reward patient investors. This layer is where most long-term growth comes from.
The top of the pyramid contains high-risk, high-reward investments, such as individual speculative shares, start-up stakes, options, commodities and collectibles. A small portion of money here is intended for those who can afford to lose it.
The narrow shape reminds investors to limit the size of such bets. Individuals and companies can use the pyramid to check their own mix.
A start-up founder with all of his wealth in his own company's shares has an upside-down pyramid, and a retiree holding only cash may have no growth layer at all. The shape that suits you depends on your age, goals and need for access.
There is no single correct pyramid. A young investor can reasonably hold a larger middle layer, while someone near retirement may widen the base.
The pyramid is a teaching model, not a rule, and the boundaries between layers are judgement calls. The model also helps with conversations.
When an adviser proposes a new product, you can ask which layer it belongs to and whether it replaces something in that layer or adds to the top. That simple question often exposes risk that a glossy brochure plays down.
In practice
Real-world examples.
Example
A 28-year-old engineer keeps six months of expenses in a savings account, puts most of his money in a global share fund and uses a small amount to buy shares in a few start-ups. His pyramid has a modest base, a large middle and a small top.
Example
A family-owned restaurant group builds a cash reserve equal to three months of costs before investing any surplus. The owners treat that reserve as the base of their pyramid and only then consider property funds.
Example
A pension trustee reviewing a scheme notes that 5% of assets sit in unlisted ventures, which is the top of the pyramid. The trustees decide to cap this layer at 5% so a failure there cannot threaten member benefits.
Formula
Calculation
Expected portfolio return = sum of (amount in each layer x assumed return of that layer) / total portfolio
A portfolio of $200,000 is split into three layers with assumed annual returns. The base holds $100,000 at an assumed 3%, which earns 100,000 x 0.03 = $3,000. The middle holds $80,000 at an assumed 7%, which earns 80,000 x 0.07 = $5,600. The top holds $20,000 at an assumed 12%, which earns 20,000 x 0.12 = $2,400. The total is 3,000 + 5,600 + 2,400 = $11,000, so the expected return is 11,000 / 200,000 = 5.5%. These returns are assumptions for illustration, not forecasts.Case study
Seen in the real world.
Oakridge Design Studio is an illustrative, fictional business whose founder sold her company for $1,500,000 and wanted to put the whole sum into a friend's new venture. Her adviser drew the investment pyramid and showed her that this would turn the pyramid upside down.
They agreed on a plan: $450,000 in cash and short-term bonds for the base, $825,000 in diversified funds for the middle, and $225,000 for riskier ventures at the top, including the friend's. This put 15% of her money in the speculative layer.
The illustrative lesson is that the pyramid did not stop her from backing a friend, but it set a limit so that a failure would hurt without ruining her.
Watch out
Common mistakes.
- Treating the pyramid as a fixed formula, when it is a teaching aid and the right shape depends on your goals and circumstances.
- Building the top layer first because it is exciting, when the base of safe assets and emergency cash should come first.
- Never revisiting the pyramid, when growth in one layer can quietly push the portfolio out of balance.
Questions
People also ask.
Is the investment pyramid the same as asset allocation?
It is a simple visual way to explain asset allocation, which is the actual division of money among asset types.
Where does a house belong on the pyramid?
Property is usually placed in the middle layer, though a personal home is also a living cost and may be treated separately.
How often should I review my pyramid?
At least once a year and after major life changes, such as a new job, a sale of a business or retirement.
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