Portfolio Performance Calculator 2026

This calculator computes a single blended return for up to three holdings, weighted by how much of your portfolio each one represents. Enter each holding's weight (as a percentage or dollar amount) and its individual return, and it calculates the value-weighted average return across all of them — the return of your portfolio as a whole, not just any one position.

Blended Return = Σ(weight of holding × that holding's return) ÷ Σ(weights). Example: Holding A is 50% of the portfolio and returned 20%, Holding B is 30% and returned 10%, Holding C is 20% and returned −5% → Blended Return = (0.50×20%) + (0.30×10%) + (0.20×−5%) = 10% + 3% − 1% = 12%. Each holding's return contributes to the total in proportion to its size, so a large winning position moves the overall number more than a small one.

Because the blended return averages across all your holdings weighted by size — a losing position doesn't mean your whole portfolio is losing, and a winning position doesn't automatically mean your whole portfolio is winning. A portfolio with one big winner and one small loser can still show a healthy positive blended return even though not every holding gained.

There's no single 'good' number — it depends on your asset mix and risk tolerance. As rough historical context: conservative (bond-heavy) portfolios have often returned around 6-9% annually, balanced portfolios around 8-11%, and growth (stock-heavy) portfolios around 10-13%, though actual results vary significantly by period and market. Compare your blended return to a relevant benchmark index and to your own goals, not to a generic target.

This calculator's blended return is a gross, pre-tax figure. Capital gains tax, dividend tax, and any transaction taxes will reduce what you actually keep — the drag varies by country, account type, and how long you held each position, so treat this calculator's output as a starting point, not your final after-tax number.