What is the 10/5/3 rule of investment?

A pink piggy bank sat on a table next to two stacks of notes

Weighing up personal finance or investment management decisions can be daunting if you don’t have a strong financial background. This is why the financial planning industry offers rules of thumb to simplify the process.

Originally coined by James O’Donnell in his book “The Shortest Investment Ever: The Wall Street Secret For Making Every Dollar Count” (2008), the 10/5/3 rule is a guideline that provides a clear approach to forecasting potential returns from diverse assets. It has been described as a financial compass for investors, enabling them to navigate the vast array of investment options.

Purpose and use

As a guide to your investments’ average rate of return, equities might give a 10% return, debt instruments (such as bonds) 5%, and savings 3% respectively.

The rationale for this is that as risky assets, stock or equities offer the carrot of higher returns. Bonds are deemed to be less risky, and as such offer steadier but lower returns, while cash savings provide easy and quick access to funding, but with negligible growth potential. Yet savings accounts still have their place in a world riven by uncertainty, and the value of liquidity and safety that savings accounts offer may appeal to more conservative investors.

In essence, the 10/5/3 rule can be used as an investment management framework for building a diversified portfolio by allocating assets based on these expected returns. By balancing high-octane stocks with safer bonds and savings, such diversification will stand you in good stead in the event of financial turbulence.

Setting expectations

Taking a long-term view, this guideline provides rookie and seasoned investors alike with a useful benchmark to help monitor their own investment strategy performance. It is important, however, to be realistic and assess the risks, as markets can be unpredictable, unsettled by geopolitics or economic shocks.

Your asset allocation, furthermore, should be driven by your level of risk tolerance and a clear idea of your investment goals. Following the 10/5/3 rule should not be a substitute for personal research, and is certainly not a guarantee of lucrative returns.

Each financial journey is unique, which is why it is a good idea to seek professional guidance. If you require financial advice on investment management in Cheshire, call our specialist team at Hartey Wealth Management today to set up an appointment. You can also check out our handy Investment Guide.

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