First Principles Thinking: Fees Apply to Specific Bases
C is correct. A hedge fund’s net return equals the change in NAV after subtracting (1) the management fee and (2) any incentive fee that is earned only after meeting the high-water mark and hurdle requirement.
Governing relationships. Let $P_1$ be beginning NAV and $P_2$ be end-of-year NAV before fees. Management fee: $$\text{MF}=m\,P_2$$. Incentive fee base (given it is net of management fee and above the hurdle applied to the HWM): $\text{Base}=\left(P_2-\text{MF}\right)-\left(P_{\text{HWM}}(1+h)\right)$. Incentive fee: $\text{IF}=p\,\max(0,\text{Base})$. Net NAV: $P_{2,\text{net}}=P_2-\text{MF}-\text{IF}$. Net return: $r_{\text{net}}=\frac{P_{2,\text{net}}}{P_1}-1$.
Numeric application. $$\text{MF}=0.02\times 560=11.2$$. NAV net of management fee $=560-11.2=548.8$. Hurdle-adjusted HWM $$=520\times 1.05=546.0$$. Excess $=548.8-546.0=2.8$. $$\text{IF}=0.20\times 2.8=0.56$$. Net NAV $=560-11.2-0.56=548.24$. Net return $=548.24/500-1=0.09648\approx 9.65\%$.
A is incorrect because it ignores the hurdle rate and charges the incentive fee simply on gains above the HWM (net of management fee), overstating the incentive fee and understating the investor’s net return.
B is incorrect because it calculates the incentive fee on gains above the hurdle-adjusted HWM using the gross end-of-year NAV (before subtracting the management fee from the incentive base), violating the stated “net of management fee” convention.