What is Portfolio Return?
Portfolio return is the weighted average return of all holdings in a portfolio, where each holding's contribution is proportional to its weight. It is the starting point for any performance attribution analysis. Time-weighted return (TWR) is the standard for evaluating manager skill as it eliminates the distorting effect of cash flows. Money-weighted return (MWR or IRR) reflects the investor's actual experience including the timing of contributions and withdrawals. This calculator computes the simple weighted return for a snapshot portfolio: enter each holding's weight and return for the period to get the blended portfolio return.
Formula
Portfolio Return = Σ (Weight_i × Return_i)
Σ Weight_i must equal 100%
Calculator
How to Use
- 1List all holdings: Enter each position as a percentage of total portfolio value (weights must sum to 100%).
- 2Enter each return: The return for each holding over the measurement period.
- 3Multiply and sum: Weight × Return for each holding, then sum all products.
- 4Add more holdings: Use the "Add position" button to add up to 20 holdings.
Worked Example
Example: Three-stock portfolio
Stock A (60%)
+15%
Stock B (30%)
+5%
Cash (10%)
+4%
Portfolio return = (0.60 × 15%) + (0.30 × 5%) + (0.10 × 4%) = 9.0% + 1.5% + 0.4% = 10.9%. Even though Stock A returned 15%, its weight of 60% brings the blended return to 10.9%.