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ESG Investing: examining returns of broad-based vs thematic investments

Sustainability Insights

December 2024

Contributor

Stanko Milojević, CFA
Head of Asset Allocation, HSBC Global Private Banking and Wealth

Key highlights

What are the data telling us?

1. Broad-based ESG indices

Figure 1 shows that the long-term performance of selected ESG indices is broadly in line with the broader market. Despite short-term deviations, ESG indices have not only kept pace with but in some cases slightly outperformed non-ESG benchmarks over longer periods. It is important to recognise that in these indices, the tilt towards ESG investments is appropriately sized to prevent excessive exposure to certain sectors, styles, or geographies. This approach to risk management is crucial for anyone venturing into thematic investments, which we explained in detail in our recent paper “How to allocate to investment themes”.

Figure 1: ESG indices performed in line with the markets over the long term

Figure 1: ESG indices performed in line with the markets over the long term
Source: Bloomberg, HSBC Global Private Banking, December 2024. Past performance is not a reliable indicator of future performance.

Figure 2 compares these ESG indices to the MSCI ACWI across additional metrics such as maximum drawdowns (max DD), best and worst years, and annualised performance. The analysis shows that ESG investments exhibit similar risk and return characteristics to broad market indices. While ESG can underperform slightly in certain years, it also outperforms in others—an entirely normal pattern within diversified portfolios that include some active stock selection and risk-managed deviation from the market-cap benchmark.

ESG indices underperformed market benchmarks in 2022, but it’s important to contextualise that phenomenon. The global economic landscape in recent years has been marked by rising interest rates, inflationary pressures, and sectoral shifts that have disproportionately impacted growth-oriented ESG stocks. As bond yields started to stabilise in mid-2023, we can see from the table that ESG indices once again started to perform in line with market benchmarks.

Figure 2: ESG indices vs broad benchmarks – additional statistics

Figure 2: ESG indices vs broad benchmarks – additional statistics
Source: Bloomberg, HSBC Global Private Banking, December 2024. Past performance is not a reliable indicator of future performance.

We think these cyclical challenges do not detract from the structural tailwinds supporting ESG themes. Companies with robust ESG profiles are often better equipped to manage longer-term risks related to climate change, regulatory shifts, and social issues. These qualities contribute to their resilience and adaptability in an evolving global economy. But investors should remember that markets do not move in a straight line, and short-term volatility is an inherent part of market participation which equally applies to ESG investments.

2. Thematic Investments

Figure 3 sheds light on the challenges of concentrated ESG thematics compared to diversified ESG portfolios constructed using MSCI's risk-controlled methodologies. Concentrated ESG strategies can experience amplified underperformance during adverse market conditions. But this is a dynamic that is also observed in anti-ESG thematic investments, such as AdvisorShares Vice ETF and SPDR Oil and Gas Exploration ETF, which have also underperformed during the same period. This chart covers the common maximum time period across all selected ETFs. And of course, investors will appreciate that investments with a big sector or style bias can go through periods of underperformance, just as investors would not expect specific sector indices to constantly outperform through the cycle.

Figure 3: Both ESG and anti-ESG underperformed the market in recent years

Figure 3: Both ESG and anti-ESG underperformed the market in recent years
Source: Bloomberg, HSBC Global Private Banking, December 2024. Past performance is not a reliable indicator of future performance.

This observation reinforces the importance of diversification within ESG investing. Concentrated approaches, while potentially offering higher upside in favourable environments, are more vulnerable to idiosyncratic risks. Investors can mitigate these risks by risk-sizing their thematic allocations, or using risk-managed ESG strategies that balance exposure across sectors and regions, and avoid big sector or style biases. Such diversification ensures that ESG portfolios are positioned to capture upside potential while maintaining resilience against downturns.

Figure 4 reveals that there have been years when these concentrated ESG funds substantially outperformed broader markets. Of course, no investment strategy consistently outperforms every year, and ESG is no exception. The key takeaway is that ESG investments, like all thematic strategies, require patience and a long-term perspective. An additional observation here is the negative correlation between the performance of clean energy vs oil and gas. A similar negative correlation can also be seen between the recent performance of electric vehicle manufacturers and carmakers focussed on combustion engines.

Figure 4: Calendar year performance of thematic ETFs

Figure 4: Calendar year performance of thematic ETFs
Source: Bloomberg, HSBC Global Private Banking, December 2024. Past performance is not a reliable indicator of future performance.

The strategic case for ESG investing

There is a growing body of evidence that ESG factors can contribute to financial performance over the longer term. Companies with strong ESG credentials tend to benefit from lower capital costs (source: The Impact of a Firm’s ESG Score on Its Cost of Capital, Sustainability Accounting, Management and Policy Journal), enhanced operational efficiency (source: ESG, Operational Efficiency, and Operational Performance, Managerial Finance), and improved stakeholder relationships (source: ESG Stakeholders, Implementing ESG Principles for Sustainable Businesses). As regulatory frameworks tighten and societal expectations shift, ESG leaders are well-positioned to capitalise on these trends. Recent underperformance, therefore, should be viewed as a temporary hurdle rather than a structural weakness, in our view. Some of the reasons to remain committed to integrating an ESG approach into the broader investment strategy are:

  1. Alignment with Structural Trends: ESG investing aligns with mega-trends such as decarbonisation, resource efficiency, and social equity. These themes are not only ethically compelling but also economically advantageous in a world increasingly defined by sustainability imperatives.
  2. Regulatory Momentum: Governments and regulators worldwide are implementing policies to address climate change, enhance corporate transparency, and promote equitable growth. ESG leaders are ahead of the curve in adapting to these changes, giving them a competitive edge.
  3. Risk Management: Companies with strong ESG practices are better equipped to navigate reputational, regulatory, and operational risks. This risk mitigation can translate into more stable and predictable returns for investors.

Conclusion

The recent performance of thematic ESG investments may have led to questions about their viability, but it’s crucial to keep a long-term perspective. The underperformance observed in the past two years is consistent with the cyclical nature of financial markets and does not negate the structural case for the ESG approach. Evidence shows that broad-based and diversified ESG indices perform in line with broader markets over time and exhibit comparable risk profiles. By maintaining a diversified approach and focusing on long-term outcomes, investors can continue to benefit from the resilience and relevance of ESG strategies.

Our investment philosophy to stay invested and exercise patience also applies to ESG investing, as diversified portfolios should generate competitive financial returns over the long run and contribute to a more sustainable and equitable future.

HSBC and Sustainability

Today we finance a number of industries that significantly contribute to greenhouse gas emissions. We have a strategy to help our customers to reduce their emissions and to reduce our own. For more information, visit www.hsbc.com/sustainability. 

Notices and disclosures