Finding the ESG Edge in Global Small-Cap Stocks

In small-cap markets, fundamental research is in short supply—and good environmental, social and governance (ESG) research is even scarcer. But diligent investors can still find ways to access robust ESG data and create active global small-cap portfolios of companies that are making meaningful contributions to address sustainability issues.

ESG ratings are lacking for small-cap stocks globally. This prevents asset managers who rely exclusively on third-party ratings from building small-cap funds. Since smaller companies often struggle to complete all the disclosures necessary to earn a rating, many remain unrated by leading ratings providers (MSCI and Sustainalytics) even if they disclose a range of valuable ESG information (Display).

Complying with relevant ESG regulation—in particular, the European Union’s (EU’s) Sustainable Finance Disclosure Regulation (SFDR)—is nearly impossible for small-cap managers to do using third-party ESG ratings alone. From January 2023, SFDR will require investment managers who have classified their funds as article eight or nine to provide a wide range of environmental, social and governance data.

Data consistency is another challenge. The shortage of data and wide variations in methodology between the leading ESG ratings providers lead to low correlations between their ratings, making it hard for fund managers to adopt a consistent approach. That applies particularly in small-cap stocks, where the rating correlations are less than half those in large-cap markets.