Modified Dietz Method A method of evaluating a portfolio's return based upon a time weighted analysis. Investopedia Says: The Modified Dietz Method is more accurate way to measure the return on your portfolio than a simple geometric return method. This is because the Modified Dietz Method identifies and accounts for the timing of all random cash flows while a simple geometric return does not. Related Terms: Jensen's Measure Portfolio Return Sharpe Ratio Sortino Ratio Time-Weighted Rate Of Return |