Return on Investment (ROI): The Complete Guide
Return on Investment (ROI) is a fundamental financial performance measure used to evaluate the efficiency and profitability of an investment, or to compare the efficiency of several different investments. It directly measures the amount of return relative to the investment's cost. Despite its mathematical simplicity, it remains the gold standard metric for investors and business owners alike.
Examples & Use Cases
- Stock Market: You buy shares worth $5,000. After exactly 2 years, your portfolio grows to $7,500. Your total ROI is 50%, with a net profit of $2,500. More importantly, the Annualized ROI stands at a highly impressive 22.47% per year.
- Marketing & Ads (ROAS): You spend $1,000 on Facebook ads, which directly generate $3,000 in sales. Your ROI is 200%. Every dollar spent returned the principal plus two additional dollars in profit.
- Real Estate Flipping: You buy a house for $100,000 and sell it 5 years later for $150,000. Total ROI is 50%. However, your Annualized ROI is 8.44%. Comparing the annualized figure with index funds helps you judge opportunity costs.
Why Annualized ROI is Crucial
Standard ROI can be incredibly misleading. An investment returning 100% sounds phenomenal, but if it takes 20 years to achieve that 100% gain, the Annualized ROI is only about 3.5%. The Annualized ROI standardizes the time factor, allowing you to accurately compare a 6-month crypto trade with a 10-year real estate holding.