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2 votes

Why does Excel's XIRR() yield a different result than the FFIEC's Reg. Z APR calculator?

Download the Excel file "xirr vs app J apr.xlsx" for details (click here). First and foremost, Excel XIRR calculates an annual "effective" (compound) rate. … Excel XIRR derives the annual rate "I" such that 0 = -A + P/(1+I)^((d1-d0)/365) + P/(1+I)^((d2-d0)/365) Jan has 31 days (d1-d0) and Feb has 28 days, so d2-d0 is 59. …
joeu2004's user avatar
1 vote

question on XIRR (excel)

Of course Excel XIRR supports multiple negative cash flows. … Excel XIRR is most reliable when the first 1,...,m cash flows are one sign, and last cash flows m+1,..,n are the opposite sign. But Excel XIRR can work with multiple changes in sign. …
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