Performance Fee

Performance Fees for pre-Sulu releases include the concept of a “crystallisation period”. While this concept is important in traditional finance, it is also complicated and gas-expensive to properly implement on-chain.
By removing the concept of “crystallisation period”, we can greatly simplify the implementation of the performance fee in the protocol.
This also implies that performance fee can be claimed at any time. 
Without a "crystallisation period" the manager can potentially earn more performance fees through continuous accrual instead of quarterly or yearly accrual. Managers should therefore set the rate for the new simplified performance fee lower than the rate of the previously used performance fee.
Principles
Performance fee is paid after a period of constant share supply. Share supply changes on the following actions:
buy shares
redeem shares
claim fees
Performance fee is only paid if the share price at the end of a share period is larger than the high watermark.
Only the wealth created for the share price above high watermark is taken into account.
Performance fee is paid out in shares, as all other fees.
Order of fee registrations: Management Fee, Performance Fee, Entrance Fees, Exit Fees
Formulas
Call totalSupply = TSiTS_iTSi​
 i.e. totalSupply before minting or burning shares for the action)
Read highWatermark from storage (this is the share price after the previous performance fee calculation, see below), hwmhwmhwm
​
Current gross share price gi=GAVi/TSig_i = GAV_i / TS_igi​=GAVi​/TSi​
​
Wealth created during period: Wi=max(gi−hwm,0)⋅TSiW_i = max(g_i - hwm, 0) \cdot TS_iWi​=max(gi​−hwm,0)⋅TSi​
​
Value of performance fee during period Fi=Wi⋅xF_i = W_i \cdot x%Fi​=Wi​⋅x
, where xxx
is the performance fee percentage
Performance fee shares (dilute existing shares): fi=Fi⋅TSiGAVi−Fif_i = \frac{F_i \cdot TS_i}{GAV_i - F_i}fi​=GAVi​−Fi​Fi​⋅TSi​​
​
Calculate share price (after all fees have been minted or burnt): gi′=GAVi/TSi′g_i^\prime = GAV_i / TS_i^\primegi′​=GAVi​/TSi′​
 where TSi′TS^\prime_iTSi′​
 is the new total supply after all fees have been settled. If gi′>hwmg^\prime_i > hwmgi′​>hwm
 (i.e. also WiW_iWi​
 and FiF_iFi​
 will be larger than zero), then update storage hwm=gi′hwm = g^\prime_ihwm=gi′​
.
Last modified 2mo ago