Smart beta ETFs: the advantages and risks to know in 2026
Updated on 28 July 2026
A smart beta ETF is an exchange-traded index fund that weights its holdings by factors (value, momentum, low volatility, quality) rather than by market capitalisation alone, in order to target a better risk-return trade-off. This article explains how they work, their advantages, their risks and how to choose them.
- Smart beta ETFs apply systematic rules (value, momentum, quality, low volatility) to select and weight securities differently from a conventional index.
- Their management fees are generally higher than those of traditional index ETFs, which can reduce net performance over the long term.
- No outperformance is guaranteed: a given factor can underperform for long stretches depending on market cycles, with a risk of capital loss.
- Most global smart beta ETFs are not eligible for the PEA (a French tax-advantaged equity savings account), which is restricted to European shares, so they are usually held in a securities account or a life insurance policy.
What is a smart beta ETF?
Smart beta ETFs are an innovative approach to investing. These funds combine the benefits of traditional ETFs with more sophisticated investment strategies. They aim to beat market-capitalisation-weighted indices by selecting and weighting securities according to specific criteria.
Smart beta ETFs give investors access to investment strategies previously reserved for active managers. They can target factors such as value, quality or momentum, while keeping the transparency and low costs typical of conventional ETFs. This approach allows more targeted market exposure than the one offered by major indices.
Smart beta ETFs may deliver returns that differ from conventional indices, with no guarantee and with a risk of capital loss. They adapt to different market conditions, offering an interesting middle ground between pure passive management and costly active management. That said, their performance can vary with economic cycles and with the factors targeted.
In short, smart beta ETFs combine the benefits of traditional index funds with advanced investment strategies. They aim to outperform conventional indices by using specific criteria to select and weight securities.
Definition and principle of smart beta ETFs
As a category, smart beta ETFs are exchange-traded funds that use predefined rules to choose their investments. Unlike conventional ETFs, which simply track a market-capitalisation-weighted index, smart beta funds apply additional filters.
These filters, known as factors, can include criteria such as value, growth or volatility. The aim is to build a portfolio that performs better than the benchmark index.
Smart beta ETFs seek to capture the benefits of active management while keeping the low costs and transparency of traditional ETFs.
Types of smart beta strategy
There are several types of smart beta strategy, each based on different factors:
- Value: selecting undervalued shares
- Momentum: focus on rising securities
- Low volatility: priority to less risky shares
- Quality: companies with solid fundamentals
A few smart beta ETFs, given for illustration only (non-exhaustive, not a recommendation):
| ETF name | Strategy | Index tracked |
|---|---|---|
| iShares Edge MSCI World Value Factor | Value | MSCI World Enhanced Value |
| Amundi MSCI World Momentum | Momentum | MSCI World Momentum |
| Amundi (ex-Lyxor) FTSE All-World Minimum Variance | Low volatility | FTSE All-World Minimum Variance |
According to the JustETF factsheet for the iShares Edge MSCI World Value Factor, this fund carries a TER (Total Expense Ratio) of 0.25%, an order of magnitude representative of the smart beta fees discussed later in this article.
These smart beta funds give investors an alternative way to diversify their portfolios and potentially improve their long-term performance.
How do smart beta ETFs work?
Smart beta ETFs use distinctive investment strategies in an attempt to beat traditional indices. They combine elements of passive and active management to offer a different approach to investing.
The mechanics behind smart beta ETFs
Smart beta ETFs follow predefined rules to select and weight the assets in their portfolio. Unlike traditional ETFs based on market capitalisation, they use other criteria such as value, quality or volatility.
These funds apply a systematic approach to picking securities. For example, they can:
- Overweight low-volatility shares
- Select companies with solid financial ratios
- Favour undervalued securities
This method aims to capture specific market factors in order to generate higher long-term returns.
Comparison with traditional ETFs
Smart beta ETFs differ from conventional ETFs in several ways:
| Feature | Traditional ETF | Smart beta ETF |
|---|---|---|
| Weighting | Market capitalisation | Specific factors |
| Management | Passive | Semi-active |
| Objective | Replicate an index | Outperform an index |
| Costs | Very low | Moderate |
Smart beta ETFs aim for differentiated risk-adjusted performance, with no guarantee of outperformance. They are, however, generally more expensive than traditional ETFs and can go through periods of underperformance.
Advantages of smart beta ETFs
Smart beta ETFs offer notable advantages for investors looking to optimise their portfolios. They combine greater diversification with strategies designed to improve returns relative to traditional indices.
Greater diversification
Smart beta ETFs allow deeper diversification than conventional index funds. They use approaches based on specific factors such as value, momentum or quality.
This method reduces reliance on large market capitalisations. It gives exposure to a wider range of companies and sectors.
Low-volatility ETFs aim to reduce the size of the swings, without removing the risk of capital loss. They select shares that are less sensitive to market movements.
So-called multi-factor strategies combine several criteria. They aim to build portfolios that are more robust across different market conditions.
Optimising returns
Smart beta ETFs seek to outperform traditional benchmark indices. They use criteria such as dividends, cash flow or earnings.
Strategies focused on dividend growth target companies with stable, rising payouts. They can offer higher income over the long term.
Approaches based on value target undervalued shares. They may potentially generate alpha if the market re-rates those securities, with no guarantee and with a risk of loss.
Smart beta ETFs generally carry lower fees than actively managed funds, with no guarantee of higher performance. They offer a systematic approach with a fee structure that is usually below that of active management.
Drawbacks and risks of smart beta ETFs
Smart beta ETFs come with their own challenges. Their complex structure and higher costs can have a significant impact on returns.
Greater complexity
Smart beta ETFs use sophisticated investment strategies. They select securities according to specific factors, such as value or growth. This approach calls for a thorough understanding of financial markets.
Investors can misread these strategies, which may lead to unsuitable investment decisions. For example, an ETF focused on low volatility could underperform in a fast-rising market.
Managing these funds is also more complex. Managers have to adjust the portfolios regularly, which can bring higher operational risks.
Higher costs
Smart beta ETFs generally carry higher fees than traditional ETFs. Their expense ratios can be 2 to 3 times higher.
Here is an illustrative allocation combining conventional ETFs, smart beta and bonds:
| ETF type | Allocation | Example |
|---|---|---|
| Conventional index | 40% | S&P 500 ETF |
| Smart Beta "Low Volatility" | 20% | S&P 500 Low Volatility ETF |
| Smart Beta "Value" | 20% | MSCI World Value ETF |
| Bonds | 20% | Aggregate Bond ETF |
These higher costs stem from the active management and research involved. They can erode returns over time.
Investors must assess whether the potential benefits justify this extra expense. In some cases, smart beta strategies may not outperform enough to cover their costs.
How do you choose a smart beta ETF?
Selecting a smart beta ETF calls for a thorough analysis of several key factors. You need to understand the selection criteria and use the right tools to assess these complex financial products.
Selection criteria
The choice of a smart beta ETF can draw on an analysis of past performance, bearing in mind that past performance is not a reliable indicator of future performance. This historical data gives an insight into how well the ETF has met its objectives.
The fund's transparency is crucial. You need to understand how the ETF selects the securities it holds. An ETF with a clear methodology inspires confidence.
Management fees play an important role. High costs can erode returns over the long term. It is therefore vital to compare fees across different smart beta ETFs.
Alignment with your own investment objectives is essential. Every investor should choose an ETF that matches their strategy and their risk tolerance.
Tools and resources for assessing smart beta ETFs
Many online tools make it possible to compare smart beta ETFs. These platforms provide data on performance, fees and ETF composition. Apps such as Finary also let you centralise the tracking of your positions, across all brokers, alongside your other assets.
For beginners, the recommended steps are to:
- Read the ETF prospectus carefully
- Make use of recognised ETF comparison tools
- Consult independent expert analysis
It is also useful to follow financial news to understand the market trends that can affect smart beta ETFs.
Regularly reviewing the investment strategy of the ETF matters. Investors should check whether the ETF continues to meet their expectations and their objectives over time.
Smart beta ETFs in a diversified portfolio
Smart beta ETFs offer an innovative way to optimise investments. They combine active and passive strategies to potentially improve returns and manage risk.
Fitting smart beta ETFs into an overall investment strategy
Used well, smart beta ETFs can complement other types of investment in a portfolio. They add further diversification by targeting specific factors such as volatility, quality or value.
Purely for illustration and not as a prescription, one possible split could combine several asset classes, for example:
- 50% in conventional index ETFs
- 30% in smart beta ETFs
- 20% in bonds
This approach aims to balance potential return and risk management. Smart beta ETFs can help reduce reliance on the largest capitalisations found in indices weighted by market capitalisation.
Examples of portfolios including smart beta ETFs
An illustrative, non-personalised example of a portfolio including smart beta ETFs (to be adapted to your own profile):
- 50% global index ETF (such as MSCI World)
- 25% "low volatility" smart beta ETF
- 25% "value" smart beta ETF
This type of portfolio aims to combine broad market growth with targeted strategies. "Low volatility" smart beta ETFs seek to reduce swings, while value-focused ones target potentially undervalued companies.
Over the long term, this approach aims for relative stability, with no guarantee of outperformance against the benchmark index. Past performance is not a reliable indicator of future performance.
Best practices for investing in smart beta ETFs
Investing in smart beta ETFs generally fits into a considered approach and an understanding of the risks and opportunities. A well-designed strategy and prudent portfolio management are essential to handle these financial instruments.
Long-term vs short-term strategies
The long-term approach is frequently associated with smart beta ETFs, without amounting to personalised advice. It allows you to take full advantage of these funds, notably exposure to specific performance factors. It also helps reduce the impact of short-term market fluctuations.
It is important to resist the temptation to react impulsively to market moves. Investors should focus on their long-term objectives and on the overall strategy of their portfolio.
A longer investment horizon also makes it easier to assess how smart beta ETFs perform against traditional indices.
Tips for limiting risk
Here too, diversification remains a key principle, even within smart beta ETFs. Diversifying across several smart beta strategies is commonly discussed in the financial literature.
Here are a few examples of diversification:
- A value-focused ETF
- A quality-focused ETF
- A momentum-focused ETF
Monitoring portfolio performance regularly can be worthwhile, as can adjusting its composition where necessary. That may mean rebalancing allocations between different smart beta ETFs, or changing exposure to certain factors depending on market conditions.
Investors should also pay attention to the fees attached to these ETFs, as they can have a significant impact on long-term risk-adjusted returns.
Goals
Frequently asked questions
Are smart beta ETFs eligible for the PEA?
Most smart beta ETFs track global indices and are therefore not eligible for the PEA, which is restricted to European shares. Some smart beta ETFs focused on European shares can be eligible: check the eligibility field shown on the ETF key information document.
What is the difference between a smart beta ETF and an actively managed fund?
An active fund rests on the discretionary decisions of a manager, whereas a smart beta ETF applies fixed, transparent rules set in advance. Smart beta sits between passive and active management, with fees that are generally in between.
What investment horizon should you favour for a smart beta ETF?
Factor strategies can underperform for several years before paying off. A long horizon, often cited as starting at five to ten years, helps smooth these cycles, without this constituting personalised advice or a guarantee of results.
Do smart beta ETFs carry a risk of capital loss?
Yes. Like any equity investment, they are exposed to market swings and can lose value. Targeting a factor does not remove that risk and may even amplify underperformance if the targeted factor falls out of favour.
Sources
JustETF, iShares Edge MSCI World Value Factor UCITS ETF factsheet (ISIN IE00BP3QZB59)
JustETF, iShares Edge MSCI World Momentum Factor UCITS ETF factsheet (ISIN IE00BP3QZ825)
economie.gouv.fr, How to invest in ETFs?
Regulatory disclaimers: Marketing communication. Investing carries a risk of partial or total capital loss. Past performance is not a reliable indicator of future performance. This article is provided for information and educational purposes only; it does not constitute personalised investment advice, a buy or sell recommendation, or tax advice. Before investing, read the Key Information Document (KID) and, where relevant, consult an authorised adviser. Finary SAS, an investment firm authorised by the ACPR (no. 19283), member of AMAFI. Insurance broker registered with ORIAS (no. 21001279), member of the CNCGP (association approved by the AMF). Crypto-Asset Service Provider (CASP, "PSCA" in French) authorised by the AMF under the MiCA regime, references no. A2026-026 and no. N2026-008.
