17 Best Sustainable Investment Funds Worth Looking at in 2026

12. SPDR S&P 500 ESG ETF - Core Holdings with Values

The SPDR S&P 500 ESG ETF provides investors with exposure to large-cap U.S. companies that demonstrate strong ESG characteristics while maintaining the broad market exposure and diversification benefits of S&P 500 investing. This fund applies ESG screening to the S&P 500 universe, selecting companies with the highest ESG scores while maintaining sector representation and broad market exposure. The fund's approach ensures that investors don't have to sacrifice diversification or market exposure to align their investments with their values, making it an ideal core holding for sustainable portfolios. The fund includes many of the largest and most established U.S. companies that have demonstrated leadership in sustainability practices and are positioned to benefit from the ongoing transition to a more sustainable economy. In 2026, the fund has benefited from the continued outperformance of companies with strong ESG practices and the increasing recognition that sustainable business practices are drivers of long-term competitive advantage. The fund's low cost structure and tax efficiency make it particularly attractive for long-term investors seeking broad market exposure while maintaining ESG standards. With large-cap companies increasingly recognizing the importance of ESG factors to their long-term success, this fund provides exposure to established companies that are leading the sustainability transformation across multiple industries.