Compounding Pref Question

ChangedMyName's picture
Rank: Orangutan | 313

I have to build a waterfall with monthly periods the goes Pref->ROC->Split->Split. Normally this would be pretty straight forward but the splits have "hurdles" that are "x percentage of total distributions" to GP type of things. Anyways my question is about the Pref accrual calculation.

The LP agreement says 15% per annum compounded quarterly, computed for the actual number of days for which the preferred return is being determined.

I used -(FV((1+EFFECT(15%,4)^(1/365)-1),Current Period-Past Period,0,Beginning Balance)+Beginning Balance

My CFO seems to think this results in compounding monthly and quarterly. Basically doubling up. because the beginning balance is the previous months ending balance which is principal + accrued pref.

Am I doing this correctly? Thanks.

Comments (8)

Jun 28, 2019

Hey ChangedMyName, I'm the WSO Monkey any of these help:

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Hope that helps.

Jul 5, 2019

no, i don't think you're doubling up.

a quick check i always run, assuming you return the equity at some point, is to run a total line item that shows your equity contr plus all your pref months and then finally your ROE...mainly just to run an IRR check to make sure it's flowing correctly.

if your XIRR check = the EFFECT(15%,4) value, then you know your doing it correctly.

    • 1
Jul 5, 2019

Could you please share the entire waterfall structure? Id like to practice some different scenarios and this one sounds interesting.

Jul 8, 2019

dont have it on this desktop...but i posted it to the forum a while back. There were some minor bugs in it as it was posted very late on a weekday unfortunately. However, I think it will more than answer your question posted here.

    • 1
Jul 8, 2019

The one I just finished/am referring to is as follows

  1. 15% Pref on "New Equity"
  2. ROC of "New Equity"
  3. LP/GP 70/30 until LP receives 100% of "Buy-in Equity"
  4. 45%/55% until GP receives 42% of "All Equity Distributions"
  5. 58/42 thereafter

There are a couple other little funky things in there to account for land contributions and such but thats the high level.

Jul 12, 2019

Would love to see your final model excel if you don't mind PMing or posting. I didn't see it on another post.

I do something like this pref structure frequently, but 360 day year quarterly compounding. My LPA isn't clear about actual number of days pref is computed though.

I use the MOD formula to count number of days to say every 90 days, add the quarter of accrued interest to the capital account balance (for calculation, not the equity balance), if not just do simple daily interest method if last period is less than 90 days. Pretty sure I use the DAYS360 formula set to the European method in there somewhere too.

Jul 12, 2019

I don't think you're getting the right interest rate in this function. To get the interest rate, I think you'd just calculate the 15% effective rate at a quarterly compound and divide by 365.


When you raise to a fraction, it means you're discounting, if you go back to actuary formulas.

    • 1
Jul 12, 2019