17 Best Sustainable Investment Funds Worth Looking at in 2026
4. Calvert Equity Portfolio - Integrated ESG Excellence

The Calvert Equity Portfolio represents a sophisticated approach to sustainable investing that seamlessly integrates ESG analysis with fundamental financial research to identify companies positioned for long-term outperformance. This actively managed fund employs a rigorous investment process that evaluates companies not only on traditional financial metrics but also on their environmental impact, social responsibility, and governance practices, recognizing that these factors are increasingly material to long-term business success. The fund's experienced management team conducts deep research into companies' sustainability practices, supply chain management, employee relations, and board composition to identify those best positioned to thrive in an economy increasingly focused on stakeholder capitalism. The portfolio construction process emphasizes companies that are leaders in their respective industries in addressing ESG challenges while maintaining strong competitive positions and growth prospects. In 2026, the fund has particularly benefited from its early identification of companies successfully navigating supply chain sustainability challenges and those capitalizing on the growing demand for sustainable products and services. The fund's active management approach allows for dynamic positioning as ESG trends evolve, ensuring that the portfolio remains aligned with both emerging sustainability themes and changing market conditions.
## Section 6: First Trust NASDAQ Clean Edge Green Energy Index Fund - Technology-Driven Sustainability
The First Trust NASDAQ Clean Edge Green Energy Index Fund provides investors with exposure to the most innovative and technologically advanced companies in the clean energy sector, focusing on firms that are developing breakthrough technologies to accelerate the global energy transition. This fund tracks an index of companies involved in manufacturing, development, distribution, and installation of emerging clean energy technologies, including advanced biofuels, energy storage systems, smart grid infrastructure, and next-generation renewable energy solutions. The fund's emphasis on technology and innovation sets it apart from broader renewable energy funds, concentrating on companies that are pushing the boundaries of what's possible in clean energy generation, storage, and distribution. In 2026, the fund has captured significant value from the rapid advancement of battery technology, the deployment of smart grid systems, and the commercialization of breakthrough technologies like green hydrogen and advanced geothermal systems. The fund's focus on NASDAQ-listed companies ensures exposure to high-growth, technology-oriented firms that are often at the forefront of clean energy innovation. With the clean energy technology sector experiencing unprecedented investment and innovation, this fund provides investors with targeted exposure to the companies most likely to benefit from the ongoing technological revolution in energy.