Simple Dietz Return Calculator
Calculate portfolio returns using the Simple Dietz method (assumes mid-period cash flows).
Portfolio Values
$
$
$
Formula: (EV - BV - CF) / (BV + CF/2)
Assumes all cash flows occur at midpoint of period.
Simple Dietz Return
+6.83%
Annualized: +6.83%
Net Gain
$7,000.00
Avg Capital
$102,500.00
Calculation Breakdown
Beginning Value$100,000.00
Cash Flows$5,000.00
Ending Value$112,000.00
Average Capital$102,500.00
Investment Gain$7,000.00
Simple vs Modified Dietz
Simple Dietz assumes all cash flows occur at the midpoint. Use Modified Dietz for more accuracy when you know exact timing.