Skip to content
Investmentportfolio

Weighted Portfolio Return Calculator

The weighted return of a portfolio, and how much of it each holding actually produced. Averaging the returns of the holdings equally is the common mistake and it flatters small winners badly.

Also called: weighted portfolio return, portfolio performance calculator.

%
%
Portfolio return
8.25%

8.25% across 4 holdings worth ₹10,00,000. Equity fund contributed 5.68 of those points on 40% of the portfolio. The unweighted average of the holding returns is 7%, which is not the portfolio return and differs by 1.25 points here. Enter inflation to see the return in purchasing power rather than in currency.

Portfolio value
₹10,00,000
Gain
₹82,500
Unweighted average of the returns
7%
After the expense ratio
8.25%
After inflation
8.25%
Holdings
4
Largest contributor
Equity fund, 5.68 points
Largest drag
Small cap, -0.62 points
On contribution
Equity fund contributed 5.68 of those points on 40% of the portfolio. The unweighted average of the holding returns is 7%, which is not the portfolio return and differs by 1.25 points here.
On the real return
Enter inflation to see the return in purchasing power rather than in currency.

An estimate, not an offer or a guarantee. Projected returns assume the rate you entered holds for the whole term, which no market does.

Contribution to return

Hover or drag for values
Contribution, points

What each holding contributed

HoldingValueWeightReturnContributionGain
Equity fund₹4,00,00040%14.2%5.68%₹56,800
Debt fund₹3,00,00030%7.5%2.25%₹22,500
Small cap₹2,00,00020%-3.1%-0.62%-₹6,200
Gold₹1,00,00010%9.4%0.94%₹9,400
Method and background

This is what the calculation gives for the numbers you entered. It is an estimate, not advice, and it knows nothing about your situation beyond those numbers. Rules for India change on a published schedule; the effective date is shown on every rule-based tool.

How this is calculated

Portfolio return is the size-weighted average of the holding returns. The contribution column is where the useful information sits: a holding at five percent of the portfolio returning forty percent contributed two points, while one at fifty percent returning eight contributed four. The unweighted average is shown alongside precisely so the gap is visible. Costs and inflation are then subtracted in the right order, expenses first because they are charged on the portfolio, inflation second and geometrically because it is a change in the unit of measurement rather than a fee.

each holding contributes its return in proportion to its size, so a small holding with a spectacular return moves the portfolio very little
R_p
Portfolio return
w_k
Weight of the holding
r_k
Return of the holding

Worked examples

Each of these is asserted on every build. If a change to the engine ever moved one of these answers, the build would fail before the page could print it.

four holdings of different sizes

Value of each holding
400000, 300000, 200000, 100000
Return of each holding, in percent
14.2, 7.5, -3.1, 9.4
Names for the holdings
Equity fund, Debt fund, Small cap, Gold
Inflation
0%
Weighted expense ratio
0%

Portfolio return8.25%

0.4x14.2 + 0.3x7.5 + 0.2x-3.1 + 0.1x9.4; the unweighted average is 1.25 points lower

Open this example

costs and inflation take most of it

Value of each holding
400000, 300000, 200000, 100000
Return of each holding, in percent
14.2, 7.5, -3.1, 9.4
Names for the holdings
Equity fund, Debt fund, Small cap, Gold
Inflation
6%
Weighted expense ratio
1.2%

Portfolio return8.25%

boundary: 8.25 gross becomes 0.99 in purchasing power

Open this example

Method and limits

What it assumes

  • Returns are for the same period and holdings did not change size during it.

What it deliberately does not model

  • Contributions and withdrawals during the period distort this figure; a money-weighted return handles those.
  • Returns are shown before capital gains tax.

Formula version 1.0.0 · definition 1.0.0 · India · Report a problem with this calculator

Frequently asked questions

Why is my portfolio return lower than most of my holdings?
Because size decides. If the underperforming holding is the largest one, it dominates the weighted average even when most holdings did well.
What if I added money during the year?
Then this figure will be misleading, because the weights changed mid-period. A money-weighted return, or XIRR, is the right measure when cash moved in or out.