What are smart beta strategies? A guide to modern diversification

How do smart beta strategies work?

Smart beta strategies operate on a structured, rules-based system that blends factor-driven insights with systematic investment approaches. Here's how they work:

Factor-based selection

Smart beta starts with identifying specific characteristics, or "factors," that influence risk and return. These factors help select the securities included in the portfolio. Common factors include:

• Value. Focuses on undervalued stocks using metrics like Price-to-Earnings or Price-to-Book ratios, targeting potential gains as prices correct.
• Momentum. Prioritises stocks with strong recent performance, assuming trends will continue in the near term.
• Low volatility. Selects investments with reduced price fluctuations, providing stability for risk-averse investors.
• Quality. Highlights companies with strong financial health, such as stable earnings and solid balance sheets, which can tackle market volatility.
• Size. Focuses on market capitalisation, targeting small-cap stocks with higher growth potential or large-cap stocks with established stability and market dominance, depending on the strategy's goals.

By focusing on these factors, smart beta strategies tailor the portfolio to align with specific investment objectives, such as growth, risk reduction, or income generation.

Rules-based weighting

After selecting securities based on factors, smart beta determines how much weight each should have in the portfolio. Unlike traditional market-cap-weighted indices, which often give excessive weight to the largest companies, smart beta employs alternative weighting methods:

• Equal weighting. Each stock is given an equal share of the portfolio, ensuring no single security dominates.
• Fundamental weighting. Securities are weighted based on metrics like earnings, book value, or dividends.
• Factor weighting. Allocates more weight to securities that exhibit the desired factor characteristics (e.g., higher quality or lower volatility).

For instance, a smart beta strategy targeting low-volatility stocks might give greater weight to securities with the smallest price fluctuations, reducing overall portfolio risk while maintaining growth potential.

Implementation process

The creation of a smart beta strategy involves three key steps:

1. Defining objectives

Investors begin by clarifying their goals (e.g., boosting returns, reducing risk, or achieving better diversification).

2. Building the index

Using transparent rules, a customised index is constructed to focus on the chosen factors and weighting methods.

3. Passive execution

The portfolio passively follows the index, combining the cost-efficiency of passive investing with the strategic enhancements of factor-driven methodologies.

This structured and transparent process offers investors a systematic way to personalise their portfolios without the over-concentration risks of traditional index funds.

Benefits of smart beta investing

Smart beta investing provides unique benefits that go beyond traditional investing approaches. Here are the main ones:

Improved diversification

As mentioned, traditional market-cap-weighted indices often concentrate investments in a few dominant companies. Smart beta strategies counter this by diversifying exposure across multiple factors or weighting methods. For instance, an equal-weighted smart beta portfolio ensures smaller companies aren't overshadowed by larger ones, reducing over-concentration risks.

Potential for improved returns

Smart beta focuses on factors like value, momentum, or quality that have historically outperformed broader market indices over the long term. For example, a value-focused smart beta fund might emphasise undervalued stocks, taking advantage of their potential to generate higher returns if prices adjust.

Better risk management

Low-volatility smart beta strategies prioritise stocks with smaller price fluctuations, offering an extra layer of stability. Similarly, quality-focused strategies invest in financially sound companies, which tend to perform more consistently during market downturns.

Cost efficiency

While smart beta strategies typically have slightly higher fees than traditional index funds, they remain more affordable than actively managed funds. This makes it possible for investors to benefit from strategies that aim to improve returns or manage risks without paying the premium costs of active management.

Customisation

Smart beta strategies give investors the flexibility to build portfolios that match their specific financial goals. For example, those prioritising growth might focus on momentum or small-cap factors, while risk-averse investors could choose low-volatility or quality-focused strategies.

Challenges and limitations of smart beta

Smart beta strategies offer a modern approach to investing, but they also come with specific challenges and limitations that investors must consider:

Higher costs than traditional indexing

Due to their enhanced methodologies, smart beta ETFs typically involve higher fees than traditional market-cap-weighted index funds. While still more affordable than active management, these additional costs can eat into returns, especially in low-performing markets.

Factor cyclicality

The success of smart beta depends heavily on the chosen factor's performance during different market cycles. For example, value-focused strategies may underperform during market rallies. Relying on a single factor risks significant underperformance when that factor is out of favour.

Complexity in understanding and implementation

Smart beta requires a deeper understanding of the underlying factors and methodologies than traditional investing. This complexity can make selecting and implementing the right strategy challenging for retail investors without proper research or advice.

Overreliance on historical data

Smart beta strategies are often built using historical performance data. While this provides a foundation for predicting future trends, market conditions don't always repeat. Overfitting a strategy to past trends can result in an underwhelming performance in real-world scenarios.

Limited availability of specific strategies

Although smart beta has gained popularity, not all strategies are widely available or accessible. Factors like geography, asset class, and the availability of ETFs may restrict options for some investors, making it harder to align their portfolios with specific goals.

How to invest in smart beta strategies

Investing in smart beta strategies can provide a customised approach to achieving financial goals, but it requires a clear understanding of the process. Here are some steps to get started.

1. Get clear on your investment objectives

Start by clarifying what you aim to achieve. Are you looking for growth, reduced risk, stable income, or better diversification? For instance:

• Growth-focused investors might prioritise momentum or small-cap factors.
• Risk-averse investors could focus on low-volatility or quality strategies.
• Value-seekers may target undervalued stocks using metrics like price-to-book ratios.

Knowing your objectives ensures the strategy aligns with your goals.

2. Research smart beta funds and ETFs

Examine available smart beta products, comparing their methodologies and performance. Focus on:

• Factor alignment. Check whether the ETF or fund prioritises factors like value, size, or momentum.
• Weighting methodology. Understand how assets are allocated, such as equal weighting or fundamental weighting.
• Fees and costs. Look at management fees and expense ratios to avoid cutting into your returns.
• Historical performance. Review how the fund performed under different market conditions.

3. Diversify across factors and regions

Smart beta strategies often target specific factors, so combining multiple approaches can improve portfolio balance. For example, pairing value and momentum strategies can smooth performance across different market cycles. Also, consider regional diversification by including funds focused on international markets, such as Europe or Asia.

4. Select smart beta funds

When the time comes, you must carefully select where to invest your money. Here are a few examples of popular smart beta ETFs:

• Vanguard Value ETF (VTV). Focuses on undervalued large-cap stocks in the US.
• iShares MSCI USA Momentum Factor ETF (MTUM). Prioritises high-momentum US equities.
• Invesco S&P 500 Equal Weight ETF (RSP). Applies equal weighting to S&P 500 stocks for balanced exposure.
• SPDR MSCI World Quality Mix UCITS ETF (QWLD). Offers exposure to companies with quality, value, and low-volatility characteristics.
• Amundi MSCI Europe II UCITS (MEU). Provides exposure to large and mid-cap companies across 15 developed European countries.
• iShares Edge MSCI World Minimum Volatility ETF (MVOL). Seeks to reduce overall risk by investing in lower-volatility global stocks.
• iShares Edge MSCI USA Quality Factor ETF (QUAL). Targets US companies with strong fundamentals and stable earnings.
• Vanguard High Dividend Yield ETF (VYM). Focuses on high-dividend-paying US stocks.
• Invesco Russell 1000 Dynamic Multifactor ETF (OMFL). Rotates among factors like value, momentum, and quality in large-cap US equities.
• Invesco FTSE RAFI US 1000 ETF (PRF). Tracks a fundamentally weighted index of the 1,000 largest US equities by key financial measures.

These examples demonstrate the versatility of smart beta strategies, which can target large-cap or small-cap stocks depending on their objectives, such as value, momentum, or low volatility.

Disclaimer: Take note that the above are only examples, and are not Saxo's ETF recommendations. Please do your own research before investing.

5. Integrate and monitor your portfolio

Incorporate smart beta funds into your portfolio alongside traditional index or actively managed investments. Try to regularly review your allocations and rebalance to maintain your desired exposures. For instance, if one factor outperforms and becomes overweight, rebalancing can restore balance and prevent over-concentration.

6. Don't neglect costs and liquidity

Smart beta strategies typically have lower fees than active funds but higher costs than traditional index funds. Ensure the fees align with the potential benefits and verify that the fund has sufficient trading volume to avoid liquidity issues.

Future trends in smart beta strategies

The evolution of smart beta strategies continues as innovation drives the financial landscape. Here are key trends shaping their future:

AI and machine learning in factor selection

While multi-factor smart beta ETFs already allow investors to combine complementary factors, advancements in AI are taking this further. Machine learning algorithms can analyse vast datasets to identify dynamic factor combinations that align with real-time market conditions.

For example, an AI-driven ETF could adjust its weighting toward momentum during growth periods and shift to low volatility during downturns, providing a more adaptive investment strategy.

Improved customisation through technology

As technology advances, fund managers can offer even more personalised solutions. Investors could soon have access to custom smart beta strategies tailored specifically to their financial goals, such as balancing high-dividend value stocks with small-cap growth opportunities. Platforms could allow retail investors to fine-tune their portfolios without requiring institutional-level resources.

Growth of ESG-integrated smart beta

The rise of Environmental, Social, and Governance (ESG) investing is influencing smart beta strategies. Future smart beta ETFs will likely incorporate ESG criteria into factor selection, combining sustainability with targeted performance. For instance, funds could prioritise quality companies with strong ESG scores, appealing to socially conscious investors.

Smart alpha strategies

Smart alpha builds on the foundation of smart beta by blending factor-based investing with selective active management. While smart beta focuses on systematic, rules-based factor exposure, smart alpha introduces an additional layer of active oversight to capitalise on specific market opportunities.

This approach seeks to deliver outperformance (alpha) while maintaining the cost-efficiency and transparency of factor-driven methodologies. For example, a smart alpha fund might leverage low-volatility and value factors while allowing a manager to make discretionary adjustments during periods of significant market disruption, aiming to improve returns further than smart beta alone.

Expansion of regional and asset-class applications

As global markets evolve, smart beta strategies extend their reach to emerging markets and alternative asset classes like real estate or cryptocurrencies. These developments enable investors to access factor-driven benefits in previously under-represented areas, further diversifying portfolios.

Conclusion: Make smart beta strategies work for you

Smart beta strategies have redefined the investment landscape by offering a flexible, cost-efficient approach that combines the strengths of active and passive investing.

By leveraging factors such as value, momentum, and low volatility, you can create a portfolio tailored to your financial objectives, whether that means growing returns, managing risk, or improving diversification. However, it's essential to recognise some challenges, such as factor cyclicality, complexity, and costs.