Skip to main content
Glossary · investing

What is ROI (return on investment)?

Total net gain from an investment as a percentage of the amount invested.

Last updated

ROI is unadjusted for time — a 100% ROI over 1 year and over 30 years look identical without annualisation. Always pair with a time horizon (CAGR) for meaningful comparisons.

See also
Practice this in Aurora

See a plain-English bull/bear/bias breakdown on any stock — no signup needed.

Open Decision Lab →

Frequently asked questions

Related terms