What is Return on Investment (ROI)?
Return on Investment (ROI) is the universal financial metric used by retail investors, portfolio managers, corporate executives, and real estate developers to evaluate the economic efficiency or profitability of a financial asset. It measures the net financial gain relative to the original capital risked.
1. Basic Cumulative Return on Investment (ROI)
ROI (%)=
Final Value (Returned) - Initial Cost (Invested)Initial Cost (Invested)
× 1002. Annualized ROI (Compound Annual Growth Rate / CAGR)
Annualized ROI (%)=[ (1 + ROI ÷ 100)1n- 1 ] × 100
where n represents the holding duration in years.
Step-by-Step Calculation Breakdown
Step 1: Baseline Inputs ($5,000 Invested, $7,500 Returned, 2.0 Years)
Cost = $5,000.00 | Return = $7,500.00 | Net Profit = $7,500 - $5,000 = $2,500.00
Step 2: Solve Cumulative Percentage ROI
ROI=
$2,500$5,000
× 100=+50.00% Total ReturnStep 3: Solve Annualized CAGR (over 2 Years)
CAGR=(1.50)1/2 - 1=1.2247 - 1=+22.47% / year
Historical Asset Class Performance Benchmarks
| Asset Class | Historical Annualized ROI | Risk Profile & Horizon |
|---|---|---|
| S&P 500 Index (Equities) | ~10.0% / year | Moderate/High volatility. Best for 5+ year holding horizons. |
| Residential Real Estate | ~8.5% / year | Illiquid; combines property appreciation with net cash flow dividends. |
| Investment-Grade Bonds | ~5.2% / year | Low/Moderate risk; fixed interest income stability. |
| High-Yield Savings & US T-Bills | ~4.0% – 5.0% | Zero principal risk; FDIC / US sovereign backed. |