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Measuring performance

Contribution to return

How many percentage points of the portfolio’s total return one holding was responsible for.

How it works

Contribution is a holding’s return multiplied by its weight. It is what turns a list of individual performances into an explanation of the portfolio’s result.

It corrects the natural bias towards remembering the biggest percentage movers rather than the ones that actually moved the needle.

Formula

Contribution = holding weight × holding return

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Educational reference only. Nothing here is investment advice or a recommendation to buy or sell anything, and tax treatment depends on your own circumstances and the country you are in.