Glossary

ROI · Return on Investment

ROI measures the gain or loss generated on an investment relative to its original cost, expressed as a percentage of that cost.

What it means

ROI is calculated by subtracting the initial cost of an investment from its final value, dividing the result by the initial cost, and multiplying by 100. The formula is: ROI (%) = ((Final Value - Initial Cost) / Initial Cost) x 100. It is a dimensionless ratio, meaning it can be used to compare investments of very different sizes or types.\n\nThe figure tells you how much you made or lost for every unit of currency you put in. A positive ROI means the investment returned more than it cost. A negative ROI means you lost money relative to what you invested. ROI does not automatically account for the time period over which the return was earned, which is an important limitation.\n\nBecause ROI ignores time, two investments with identical ROI figures are not necessarily equivalent - one may have taken two years, the other ten. For time-sensitive comparisons, annualised return measures (such as Compound Annual Growth Rate, or CAGR) are more informative. Regulators including the DFSA in the UAE and the FCA in the UK require that investment performance figures presented to retail investors include sufficient context for those figures to be fairly understood, which typically means disclosing the period over which returns were achieved.

Why it matters for Gulf-based readers

For expats in the GCC, ROI is frequently cited in property listings, savings plan illustrations, and broker marketing materials. It is worth checking whether any quoted ROI figure is gross (before fees and charges) or net (after them), and whether it covers a specific time period. A high headline ROI figure on a unit-linked insurance plan or a managed portfolio product can look attractive but may reflect a short or cherry-picked window. Always ask for the net, annualised figure over the full product term.\n\nGCC-based investors holding assets in multiple currencies should also note that ROI figures are currency-specific. A return quoted in USD may look different when converted to AED, SAR, or another pegged or floating currency. When comparing products regulated by different authorities - such as a DFSA-regulated broker in the DIFC, a SAMA-regulated bank in Saudi Arabia, or a QCB-regulated product in Qatar - confirm the currency and time basis of any ROI figure before drawing comparisons.

Example

An investment of USD 10,000 that grows to USD 12,500 has an ROI of 25% ((12,500 - 10,000) / 10,000 x 100), regardless of how many years it took to get there.

Related terms

Related guides

This glossary entry is general information for English-speaking expats in the Gulf. It is not personal financial, tax, or legal advice.