(a) For purposes of this rule: (1) Fulcrum fee shall mean the fee which is paid or earned when the investment company’s performance is equivalent to that of the index or other measure of performance.
(2) Rolling period shall mean a period consisting of a specified number of subperiods of definite length in which the most recent subperiod is substituted for the earliest subperiod as time passes.
(b) The specified period over which the asset value of the company or fund under management is averaged shall mean the period over which the investment performance of the company or fund and the investment record of an appropriate index of securities prices or such other measure of investment performance are computed.
(c) Notwithstanding paragraph (b) of this section, the specified period over which the asset value of the company or fund is averaged for the purpose of computing the fulcrum fee may differ from the period over which the asset value is averaged for computing the performance related portion of the fee, only if:
(1) The performance related portion of the fee is computed over a rolling period and the total fee is payable at the end of each subperiod of the rolling period; and
(2) The fulcrum fee is computed on the basis of the asset value averaged over the most recent subperiod or subperiods of the rolling period.