What is factor investing?

Put simply, factor investing refers to allocating to certain investment styles (or factors), with the main ones illustrated below. Such factors have historically generated excess returns over the long term, attributed to a combination of structural, behavioural and risk-based explanations. Also known as ‘smart beta’ or ‘alternative risk premia’, these different factors have informed the evolution of how we classify and attribute performance and risk in portfolios, particularly the balance between active managers’ skill (alpha) and broad market exposure (beta).

Factors and economic seasons

One feature of factors is that they can be expected to perform best during particular phases of the business or economic cycle. We can think about these phases like the seasons of the year:

graph showing factors across investment seasons

Reasons to invest

Through factor investing, investors can start with the objectives they seek to achieve and work backwards to create a portfolio that aims to meet those objectives.

This approach is thus more than just a single index or fund: it is a way of investing that can be used for achieving specific investment objectives. Some of these objectives include the potential for:

  • Return enhancement
  • Risk reduction
  • Income generation
  • Diversification

The rising popularity of index-based investment strategies has been a clear feature of the institutional investment landscape in recent years. Comparatively low transaction costs, ongoing charges and governance costs are often cited by investors as advantages of using index funds.

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Stefan Bilby

Stefan Bilby

Head of Index Distribution
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Fadi Zaher

Head of Index Solutions
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Key risks

The value of any investment and any income taken from it is not guaranteed and can go down as well as up, and investors may get back less than the amount originally invested. The risks associated with each fund or investment strategy should be read and understood before making any investment decisions. It should be noted that diversification is no guarantee against a loss in a declining market. Further information on the risks of investing is available from LGIM’s Fund Centres.

While LGIM has integrated Environmental, Social, and Governance (ESG) considerations into its investment decision-making and stewardship practices, this does not guarantee the achievement of responsible investing goals within funds that do not include specific ESG goals within their objectives.