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.

Sustainable Investing Monitor-June 2026

Sustainable Bottom Line: Assets of L-T focused sustainable funds gained $16.1 billion in May to reach $403.3B due to market appreciation and net positive flows.

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Chart of the Week: June 22, 2026: Variations in performance of sustainable mutual funds and ETFs

Sustainable Bottom Line:  Recent outperformance of sustainable ETFs versus mutual funds is attributable to variations in product offerings and investment exposures to higher performing sectors.  Notes of Explanation:  The top five exposures are anchored based on holdings by ETFs as of May 31, 2026.  Fixed income includes corporate bonds, government and government related issues, mortgage-backed and asset-backed bonds as well as municipal securities, where these are held.

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One IPO, Two Universes: What SpaceX Means for Sustainable Index Fund Investors

Sustainable Bottom Line: SpaceX exclusion from the major US large-mid cap sustainable indices will have limited implications now but tracking deviations could widen over time.

Chart of the Week: June 8, 2026: Best performing funds-May 2026

Sustainable Bottom Line:  May 2026 returns by top 10 fund performers, up 21.5% and powered by three overlapping themes, are not likely to be repeated.  Notes of Explanation:  Funds listed in descending order based on their total return performance in May 2026.

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Chart of the Week: June 1, 2026: Expense ratios across core sustainable fund categories

Sustainable Bottom Line: Labeled sustainable index mutual funds and ETFs cost dramatically less than actively managed counterparts, in some categories more than four times less.

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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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Sustainable Investing Monitor-May 2026

Sustainable Bottom Line: Assets of L-T focused sustainable funds gained $26.2 billion in April due to market appreciation and net inflows of about $2.7 billion.

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Sustainable “impact” fund reporting practices

Sustainable Bottom Line: In addition to lacking a common definition of “impact,” fund level impact reporting by funds with “impact” in their name is limited.  Sustainable funds that refer to “impact” in their names reflect variations in the definition of impact while at the same time, reporting and disclosure practices vary Of 533 labeled sustainable long‐term mutual funds (share classes collapsed) and ETFs as of April 2026, about 338 funds reflect a sustainable reference in their name.

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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