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25 September 2026

Understanding factor investing

Get started with factor investing and understand its key components

Understanding factor investing

Factor investing is an investment approach that involves targeting specific investment factors that have been identified as driving returns and risks. These factors can be thought of as the underlying characteristics of a security that influence its performance.

The core factors in factor investing are valuemomentumqualitysize and low volatility. Each of these factors has been shown to have a significant impact on investment returns, and by targeting them, investors can potentially earn higher returns and reduce risk.

Understanding the Core Factors

The value factor refers to the tendency of cheap stocks to outperform expensive stocks over the long term. Investors who target the value factor look for stocks with low prices relative to their fundamental value, such as price-to-book ratio or price-to-earnings ratio.

The momentum factor refers to the tendency of stocks that have performed well in the past to continue performing well in the future. Investors who target the momentum factor look for stocks with high returns over a given period, such as three-month or six-month momentum.

Implementing Factor Investing

There are several ways to implement factor investing, including ETFs and mutual funds. These investment vehicles allow investors to target specific factors, such as value or momentum, and can be used to diversify a portfolio.

When implementing factor investing, it’s essential to consider turnover costs and regime sensitivity. Turnover costs refer to the costs associated with buying and selling securities, while regime sensitivity refers to the impact of changing market conditions on factor performance.

Avoiding Factor Crowding and Performance-Chasing

To avoid factor crowding and performance-chasing investors should follow simple rules, such as dollar-cost averaging and regular portfolio rebalancing. These strategies can help investors stay disciplined and avoid making emotional decisions based on short-term market movements.

By understanding the core factors and implementing factor investing in a disciplined and systematic way, investors can potentially earn higher returns and reduce risk. It’s essential to stay informed and adapt to changing market conditions to achieve long-term investment success.

Author

Edward Sterling

Edward Sterling, a finance and markets journalist, covers investing, stock markets, banking and personal finance, translating complex economic trends into clear, actionable insight for readers.