ESG investing has grown from a niche label into a mainstream category of funds - but the term is often used loosely, and it's worth understanding what it actually measures before assuming a fund labeled "ESG" or "sustainable" automatically matches your expectations.
What ESG actually stands for
ESG stands for Environmental, Social, and Governance - three categories of non-financial factors used to evaluate how a company operates, alongside its traditional financial performance.
- Environmental: How a company manages its environmental impact - emissions, resource use, waste, and climate-related risk.
- Social: How it treats employees, customers, and the communities it operates in - labor practices, product safety, data privacy.
- Governance: How the company itself is run - board structure, executive pay, shareholder rights, and transparency.
How ESG funds actually screen companies
ESG funds typically use one or more of these approaches, and it matters which:
- Exclusionary screening: Simply excludes entire industries, like tobacco, weapons, or fossil fuels, regardless of how individual companies within them behave.
- Best-in-class selection: Includes companies that score relatively well on ESG criteria compared to others in their own industry - meaning an oil company could still be included if it scores better than its industry peers.
- ESG integration: Factors ESG scores into the investment decision alongside traditional financial analysis, without necessarily excluding anything outright.
These approaches can lead to very different holdings, even for two funds both marketed under the same "ESG" or "sustainable" label.
Does ESG investing mean giving up returns?
There's no consistent, settled answer here - performance varies by fund, by time period, and by which specific companies each fund actually holds. Fees also vary between ESG and standard funds. Rather than assuming a category-wide answer either way, it's worth evaluating a specific ESG fund the same way you'd evaluate any other - checking its holdings, fees, and track record, much like the process covered in our guide on how to evaluate an ETF before you invest.
What is greenwashing?
Greenwashing refers to a fund or company presenting itself as more environmentally or socially responsible than its actual practices or holdings genuinely reflect - often through marketing language, a green-sounding name, or a logo, rather than substantive screening criteria.
How to actually check what you're buying
A short checklist
- What specific screening methodology does the fund use - exclusion, best-in-class, or integration?
- What are the fund's actual top holdings, not just its category label?
- How does its expense ratio compare to a similar non-ESG fund tracking the same broad market?
- Who provides the ESG ratings or scores the fund relies on, and how are they calculated?
The bigger picture
ESG investing isn't a single, standardized strategy - it's a broad category covering many different approaches and priorities. Whether it fits your goals depends less on the label itself and more on whether a specific fund's actual criteria and holdings line up with what you personally care about.
Frequently Asked Questions
What does ESG stand for in investing?
ESG stands for Environmental, Social, and Governance - three categories of non-financial factors used to evaluate how a company operates, alongside its traditional financial performance.
Do ESG funds perform worse than regular funds?
Performance varies by fund and time period, and there's no consistent rule that ESG funds underperform or outperform standard funds. Fees and underlying holdings differ from fund to fund, so it's worth evaluating each one individually rather than assuming a category-wide answer.
What is greenwashing?
Greenwashing refers to a fund or company presenting itself as more environmentally or socially responsible than its actual practices or holdings reflect, often through marketing rather than substantive criteria.
How do I know what an ESG fund actually holds?
Check the fund's published holdings and its specific ESG screening methodology, not just its name or marketing description. Two funds both labeled "ESG" can apply very different criteria and end up holding quite different companies.