What Is ESG or Socially Responsible Investing?
Some investors want their money to reflect more than just a return target — they also want it to align with certain values. That’s the general idea behind ESG and socially responsible investing, though the details vary widely across funds that use the label.
The short answer
ESG stands for environmental, social, and governance — a set of factors used to evaluate companies beyond their financial statements. Socially responsible investing, sometimes called sustainable or values-based investing, is the broader practice of choosing investments based partly on these kinds of factors alongside traditional financial considerations. It’s a framework for evaluating investments through an additional lens, not a single defined strategy.
What the three letters generally cover
- Environmental. How a company manages resource use, waste, emissions, and environmental impact more broadly.
- Social. How a company treats employees, customers, and the communities where it operates, including labor practices and product safety.
- Governance. How a company is run internally — board structure, executive accountability, and transparency with shareholders.
Different funds weigh these three categories differently, and there’s no single universal standard for how a company earns a high or low score in any of them, which is worth knowing before assuming all “ESG” funds are built the same way.
How this shows up in actual funds
ESG-oriented investing typically takes one of a few forms: screening out certain industries entirely, favoring companies that score well on ESG criteria relative to their peers, or actively seeking out companies focused on specific themes such as clean energy or community development. These approaches can be applied to individual stock selection or built into diversified vehicles like index funds or ETFs that track an ESG-focused benchmark rather than a broad market index.
What to weigh before choosing this approach
- Costs can differ. Specialized funds sometimes carry a different expense ratio than a comparable broad-market fund, so it’s worth comparing costs directly rather than assuming they’re the same.
- Diversification can narrow. Screening out entire industries changes a fund’s diversification profile compared with a fund that includes the whole market, which is a trade-off worth understanding rather than a flaw in itself.
- Definitions vary by provider. Because there’s no single agreed-upon standard for what counts as ESG, two funds with similar labels can hold quite different companies, so reading a fund’s actual criteria matters more than the label alone.
- Performance isn’t guaranteed either way. Choosing an ESG-oriented fund doesn’t inherently mean giving up returns, nor does it promise better returns — performance depends on the specific holdings and market conditions, the same as with any fund.
A general example
Imagine two funds that both track a similar segment of the stock market. One includes every company in that segment; the other excludes certain industries and ranks the rest by ESG criteria before selecting holdings. The two funds will hold a different set of companies and may perform differently from each other over any given period, simply because their underlying holdings differ — not because one approach is inherently superior to the other.
What to weigh
Someone considering this approach might start by asking what specifically matters to them — environmental factors, labor practices, governance transparency — and then look at how a given fund’s stated methodology addresses that, rather than relying on the label alone. It’s also worth checking costs and diversification the same way you would for any other fund, since values-based investing doesn’t exempt a fund from ordinary financial scrutiny.
The takeaway
ESG and socially responsible investing add a values-based lens to the usual financial evaluation of an investment, but the specifics vary considerably from fund to fund. Reading the actual methodology, comparing costs, and understanding how diversification is affected tends to matter more than the label itself when deciding whether a particular fund fits.