金同学2023-07-06 22:22:47
老师麻烦讲一下原版书的40题,为什么有standard fee,base fee这样的结构呀?谢谢
回答(1)
开开2023-07-09 23:20:27
同学你好,
我们在算total fee 时,公式都是total fee = base fee+ sharing
standard fee是当active return = breakeven active return=1.25%时的总费率(base fee+sharing fee)。
本题的相关计算应该是这样的:
total fee = base fee+ sharing,最大费用不得超过0.9%。sharing是分享active return 超过base fee部分的20%。
total fee = 0.25% +(active return-0.25%)*20% = 0.2%+0.2*active return
当total fee = 0.9%时,active return = 3.5%,当active return>=3.5%,total fee就都为0.9%。
如果active return不超过3.5%的时候, net active return = active return -(0.2%+0.2*active return)= 0.8*active return - 0.2%。
因此,
当active return ≤0.25%时,net active return≤0.8*0.25%-0.2%=0.
当active return =0.75%时,net active return=0.8*0.75%-0.2% = 0.4%.
当active return =1.25%时,net active return=0.8*1.25%-0.2% = 0.8%.
当active return =1.75%时,net active return=0.8*1.75%-0.2% = 1.2%.
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