A Study on the Relationship Between a Mutual Fund’s Risk-Adjusted Return and Sustainability : Do Mutual Funds with High Sustainability Scores Outperform Those with Low Ones?

Sammanfattning: During the past few decades, social responsible investing (SRI) has rapidly grown to become a renowned investment strategy. Because of the contradictory findings on how successful this strategy is in terms of financial return, the aim of this thesis is to compare the performance of sustainable and conventional funds in four different geographical areas during the last three years. With the use of regression analysis, the correlation between the Portfolio Sustainability Score of a fund, which is a Morningstar-provided rating that represents how well a fund incorporates ESG, and its risk-adjusted return is determined. The final results of this analysis varies among the four geographical regions. The correlation between the two variables is positive in USA and Asia ex-Japan, whereas a negative relationship is found in Europe and the Nordic region. However, the obtained findings are not of statistical significance, implying that there is no difference between the risk-adjusted returns of sustainable versus conventional funds.