ESG rankings have no significant effect on investment performance of Canadian public companies

ESG Investing and Financial Returns in Canada

• ESG investing incorporates environmental (E), social (S), and governance (G) considerations into investment decisions. Until recently, ESG-themed investing comprised an increasing share of investments made by professional money managers and retail investors.
• Financial industry executives and regulators who have promoted ESG-themed investing argue that it will enhance investment performance either by increasing asset returns and/or by reducing investment risk.
• However, empirical studies, on balance, find no consistent and statistically significant evidence of a positive relationship between the ESG rankings of individual companies or portfolios of companies and the financial performances of those companies or investment portfolios.
• Most empirical studies have focused on US-based publicly traded companies. To our knowledge, this study is the first to focus on returns to ESG-themed investing for Canadian-based public companies.
• Using data from MSCI, a leading ESG ratings provider, we estimate the statistical relationship between changes in ESG rankings of companies and changes in equity returns for those companies using a sample of 310 companies listed on the Toronto Stock Exchange between 2013 and 2022.
• Our study finds that neither upgrades nor downgrades in ESG ratings significantly affect stock market returns.