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Line 2: {{notability\|date=November 2010}} The '''simple Dietz method''' is a means of calculating an approximation of investment portfolio performance during a period of external cash flows into/out of the portfolio.<ref>Dietz, Peter O. ''Pension Funds: Measuring Investment Performance''. Free Press, 1966.</ref> It addresses some of the weakness of the [[~~Internal~~internal ~~Rate~~rate of ~~Return~~return]] (IRR) calculation. The simple Dietz method calculates performance as follows:

Simple Dietz method: Difference between revisions