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Evolving use of equity factor ETFs
June 25, 2024
Key takeaways
Single factor ETFs
Low excess return correlations can make single factor ETFs effective portfolio building blocks.
Multifactor ETFs
A range of multifactor ETF options cater to different investment risk tolerances and investment objectives.
Strong demand
Equity factor ETFs grew from $390 billion assets under management (AUM) in 2014 to $1.65 trillion in 2023.1
Single and multifactor ETFs can serve a variety of roles in a diversified portfolio ranging from short-term tactical adjustments to long-term strategic allocations. Here are some key things to know about them.
Single factor ETF use cases: Portfolio building blocks
Because of their unique tilts and weighting methodologies, factor-based strategies can increase portfolio diversification with historically low excess return correlations. The low excess return correlations can make single factor ETFs effective portfolio building blocks and can be used in a variety of ways, including:
Core allocation - Some investors choose to invest in single factor strategies as part of their core equity allocation. They can choose to overweight offensive or pro-cyclical factors when they expect the equity market to perform well or defensive factors in periods of equity market weakness.
Core/satellite approach - Investors with a limited tracking error budget may choose to invest a large percentage of their equity portfolio in low cost, broad market funds. They can use factor ETFs as satellite investments in hopes of improving risk-adjusted returns.
Adjusting portfolio exposures - Single factor ETFs can also be used to adjust exposures at the total equity portfolio level. An investor may have identified a group of relatively high-risk active managers that they’d like to keep in their portfolio. If they want to reduce the expected risk of the total portfolio, they may consider an allocation to a defensive factor like low volatility or quality.
Multifactor investing: A range of options
Although single factor ETFs have a place within many portfolios, they can be highly cyclical and experience significant tracking error to the broad market. Multifactor ETFs may offer a range of potential benefits, including increased diversification, lower historical drawdowns, and improved risk-adjusted returns. One useful framework for analyzing multifactor funds is through the lens of expected tracking error. Invesco offers a range of options to cater to different investor risk tolerances and objectives.
On the lower end of the expected tracking error spectrum are multifactor strategies that eliminate a small percentage of stocks exhibiting the lowest factor characteristics from a parent index. The remaining positions are weighted by market capitalization. Invesco developed a suite of low tracking error multifactor ETFs including the Invesco S&P 500 QVM Multifactor ETF (QVML), Invesco S&P 400 Multifactor ETF (QVMM), and Invesco S&P 600 Multifactor ETF (QVMS). (See table below.)
On the higher end of the expected tracking error spectrum are multifactor strategies that dynamically rotate between factors. This approach may be appropriate for higher conviction investors willing to assume greater tracking error and potentially replace an active manager with a lower cost alternative. The Invesco Russell Dynamic multifactor suite of ETFs, including the Invesco Russell 1000 Dynamic Multifactor ETF (OMFL), are examples of factor rotation strategies. (See table below.)
| QVML | OMFL | |
|---|---|---|
Factors |
|
|
| Approach |
|
|
| Historical tracking | 1.5% | 7.3% |
Source: Bloomberg L.P., 06/31/21-12/31/23. QVML inception date: 6/30/21. QVML annualized tracking error relative to S&P 500. OMFL annualized tracking error relative to Russell 1000. Past performance is no guarantee of future results.
Strong demand for factor ETFs
Factor ETFs have experienced significant AUM (assets under management) growth over the past 10 years, ending in 2023. Analyzing AUM over time allows us to understand how client demand has evolved. Over a 10-year period, the compound annual growth rates (CAGRs) of the AUM in various factor ETF categories all experienced meaningful growth rates, with quality and multifactor growing the fastest. (See table below.)
CAGR%
| Category | 3 Year | 5 Year | 10 Year | 2023 AUM (MM) |
|---|---|---|---|---|
| Growth | 12% | 21% | 19% | $447,168 |
| Value | 18% | 18% | 19% | $410,837 |
| Dividend/Yield | 19% | 18% | 14% | $359,491 |
| Size | 20% | 24% | 19% | $117,935 |
| Quality | 34% | 44% | 39% | $72,807 |
| Low Vol | -6% | 2% | 18% | $58,630 |
| Momentum | -8% | 5% | 17% | $15,052 |
| All Single Factor | 15% | 19% | 18% | $1,481,919 |
| Multi Factor | 15% | 16% | 22% | $166,886 |
Source: Bloomberg L.P., as of 12/31/2023.
In looking at the growth of AUM of five single factor categories, dividend yield is by far the largest category, reaching $359 billion at the end of 2023. (See chart below.) The other categories range from $15 billion to $118 billion. To compare their growth patterns, dividend yield is charted on the right Y-axis, and the other four factor categories on the left Y-axis. Quality has the highest growth rate among this group across all time periods. Quality and momentum ETFs both represented $12 billion in AUM in 2018. Since then, investors have preferred quality ETFs, pushing their AUM to $73 billion relative to $15 billion for momentum.
Overall, our analysis finds that investors are driving significant demand for both single and multifactor ETFs within their portfolios.
For more implementation considerations, case studies, and market trends, download the complete whitepaper, “The evolving use of equity factor ETFs”.
Footnotes
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1
Source: Bloomberg, L.P., data through 12/31/2023.
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