Input Returns
Quick Start: Use preset examples below, or enter your own returns as percentages (e.g., 25, -10, 15).
Preset Examples
Manual Entry
Or Add Returns One at a Time
Current Returns
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Key Metrics
Arithmetic Mean: Simple average of periodic returns. Represents the expected single-period return.
Σ(r_i) / n
Geometric Mean: Represents actual compound growth. Always ≤ arithmetic mean.
[(∏(1+r_i))^(1/n)] -- 1
Results will appear here
Why the difference? The AM-GM inequality shows that the gap grows with volatility. When returns vary widely (like +100%, then -50%), you lose more in bad years than you gain in good years, dragging down actual compound returns.