Glossary/Sustainable investing

Impact Investing

Also known as Impact investment

Impact investing intentionally seeks measurable positive social or environmental outcomes alongside financial return.

Editorially reviewed 2026-07-30

Why impact investing matters

It adds impact objectives, measurement, and accountability to investment analysis, creating potential alignment but also attribution and greenwashing risk.

How it is applied

Investors define objective, target population, theory of change, additionality, metrics, baseline, financial target, safeguards, and reporting.

Portfolio example

A fund finances affordable housing and tracks units delivered, affordability, resident outcomes, and financial performance.

How to interpret it

Outputs are not the same as outcomes, and outcomes are not necessarily caused by the investment.

Limitations and common misconceptions

Metrics can be selective, impacts can be negative elsewhere, and additionality is difficult to prove.

Sources and further reading