ESG vs SRI vs impact investing: what is the difference?
The three terms overlap and are often mixed up. Here is how ESG, socially responsible and impact investing differ in goal, method and proof.
Key takeaways
- ESG weighs environmental, social and governance factors when choosing investments; SRI traditionally screens out what you object to.
- Impact investing, as defined by the GIIN, aims for positive, measurable social or environmental impact alongside a financial return.
- The SEC's investor site treats the terms as related names, and the labels are used loosely, so always read what a fund actually does.
In this article
These three terms get used as if they mean the same thing. They overlap, but each starts from a different question.
The short version
| Approach | Core question | Typical method |
|---|---|---|
| SRI (socially responsible investing) | What should I not own? | Exclusions based on values, such as tobacco, weapons or fossil fuels |
| ESG | How do environmental, social and governance factors affect a company? | Scores and ratings used to select or weight holdings |
| Impact | What good can my money do? | Targeted investments with stated, measured outcomes |
SRI: avoiding what you object to
Socially responsible investing is the older idea. Commentary filed with the US SEC traces it to the 1980s, when a divestment campaign targeted companies tied to apartheid South Africa. The classic tool is the exclusion screen: leave out sectors or companies that clash with your values.
ESG: weighing the factors
ESG asks whether environmental, social and governance factors affect how a company is run and how risky it is. The SEC’s Investor.gov glossary describes it as investing in companies based on their commitment to one or more of those factors. It lists sustainable, socially responsible and impact investing as other names for it, and notes that funds weight the factors differently.
Impact: intention plus measurement
The Global Impact Investing Network (GIIN) defines impact investments as those made with the intention to generate positive, measurable social or environmental impact alongside a financial return. It stresses intent, using evidence and data, managing impact performance, and sharing lessons.
The key difference is that impact investors set impact goals and then check whether they were met.
How the labels blur
Fund companies are free to market products with any of these words, and regulators in different countries are still tightening the rules on what a label can claim. In practice you may meet a fund that uses ESG scores, has a few exclusions, and claims impact all at once. Do not rely on the name.
A quick test for any fund
- What does it exclude? (the SRI question)
- How does it choose what to hold? (the ESG question)
- Does it report measured outcomes? (the impact question)
If the fund cannot answer these in its own documents, treat the label as marketing.
This is education, not investment advice. Speak to a licensed adviser about your own situation.
Sources
- Investor.gov (US SEC), ESG investing glossary entry
- GIIN, About impact investing
- Comment letter in the SEC Names Rule proceeding (S7-04-20), for the history of SRI. This is outside commentary, not an SEC definition.
Frequently asked questions
Which is best for a beginner?
It depends on what you want. Avoiding certain industries points to screened or SRI-style funds. Wanting measurable real-world outcomes points to impact investing, which is often harder to access. ESG-labelled funds are the most widely available but vary a lot.
Can an ESG fund also be an impact fund?
Sometimes, but most mainstream ESG funds do not measure the impact they cause. Look for stated impact goals and reporting, not just a label.
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