Original, independent, thought leadership

Research

Research and analysis to keep sustainable investors up to-date on a broad range of topics that include trends and developments in sustainable investing and sustainable finance regulatory updates, performance results and considerations, investing through Index funde and actively managed portfolios, asset allocation updates, expenses, ESG ratings and data, company and product news, green, social and sustainable bonds, green bond funds as well as reporting and disclosure practices, to name just a few.

Research and analysis to keep sustainable investors up to-date on a broad range of topics that include trends and developments in sustainable investing and sustainable finance, regulatory updates, performance results and considerations, investing through index funds and actively managed portfolios, asset allocation updates, expenses, ESG ratings and data, company and product news, green, social and sustainable bonds, green bond funds as well as reporting and disclosure practices, to name just a few.   

A continuously updated Funds Directory is also available to investors.  This is intended to become a comprehensive listing of sustainable mutual funds, ETFs and other investment products along with a description of their sustainable investing approaches as set out in fund prospectuses and related regulatory filings.

Chart of the Week: September 14, 2026: Nuclear energy mutual funds & ETFs are a poor fit for sustainable investors

Sustainable Bottom Line: 11 mutual funds and ETFs offer investors nuclear or uranium exposure but none of these funds may qualify as a sustainable investment.

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Chart of the Week: September 7, 2026: Climate funds after the 1.5°C warning: 66 funds, seven strategies, one crowded trade

Sustainable Bottom Line: Limiting Overshoot report finds that temperatures are likely to cross 1.5°C within several years; it may stimulate interest in climate-focused funds.

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Chart of the Week: August 31, 2026: Expense ratios of actively managed labeled sustainable funds

Sustainable Bottom Line: Expense ratios of actively managed labeled sustainable mutual funds and ETFs, averaging 86 basis points, are driven by complexity rather than size.

Chart of the Week: August 24, 2026: Labeled sustainable infrastructure funds

Sustainable Bottom Line:  July’s dispersion of returns by the seven labeled sustainable infrastructure funds is explained by their very different points on an investment spectrum.

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Below 1,000: Sustainable Funds Slide Into Niche Territory

Sustainable Bottom Line:  Sustainable Bottom Line: The labeled long-term US sustainable funds count, including mutual fund share classes and ETFs combined, just dropped to under the 1,000 mark.  The number of labeled long-term sustainable funds/share classes dropped below 1,000 As of July 31, 2026, the number of labeled long-term sustainable mutual funds (counting share classes) and ETFs available to U.S.

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Integrating sustainable large blend funds into a conventional portfolio

Sustainable Bottom Line: Focused sustainable funds employing a "core/ESG light" strategy make it possible to achieve broad market exposure, low tracking error, and market-based returns.

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Chart of the Week: August 17, 2026: One benchmark, three sustainable philosophies-Bloomberg US Agg Bond Index tracking funds

Sustainable Bottom Line:  The sustainable Bloomberg US Aggregate Bond Index tracking fund variants offer investors slightly differentiated approaches to sustainable investing at varying expense ratios.

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The Sustainable Index Corner: A Sustainable Balanced 60/40 Index Portfolio

Sustainable Bottom Line:  A two-ETF sustainable 60/40 portfolio that delivers market-like balanced exposure based on back-testing with a modest return trade-off and added ESG features.

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Research

Research and analysis to keep sustainable investors up to-date on a broad range of topics that include trends and developments in sustainable investing and sustainable finance, regulatory updates, performance results and considerations, investing through index funds and actively managed portfolios, asset allocation updates, expenses, ESG ratings and data, company and product news, green, social and sustainable bonds, green bond funds as well as reporting and disclosure practices, to name just a few.

A continuously updated Funds Directory is also available to investors.  This is intended to become a comprehensive listing of sustainable mutual funds, ETFs and other investment products along with a description of their sustainable investing approaches as set out in fund prospectuses and related regulatory filings.

Getting started

Many questions have surfaced in recent years regarding sustainable and ESG investing.  Here, investors and financial intermediaries will find materials that describe the various approaches to sustainable investing and their implementation.  While sustainable investing approaches vary and they have thus far defied universally accepted definitions, many practitioners agree that they fall into the following broad categories:  Values-based investing, investing via exclusions, impact investing, thematic investments and ESG integration.  In conjunction with each of these approaches, investors may also adopt various issuer engagement procedures and proxy voting practices.  That said, sustainable investing approaches will continue to evolve.

In addition to periodic updates regarding sustainable investing and how this form of investing is evolving, investors and financial intermediaries interested in implementing a sustainable investing approach will also find source materials that cover basic investing themes as well as asset allocation tactics.

Inesting ideas

Thoughts and ideas targeting sustainable investing strategies executed through various registered and non-registered sustainable investment funds and products such as mutual funds, Exchange Traded Funds (ETFs), Exchange Traded Notes (ETNs), closed-end funds, Real Estate Investment Trusts (REITs) and Unit Investment Trusts (UITs). Coverage extends to investment management firms as well as fund groups. 

Independent source for sustainable investment management company research, analysis, opinions and sustainable fund disclosure assessments