NO.PZ2021101401000027
问题如下：
Rutledge considers a new ETF investment for the fund. He plans to own the ETF for nine months. The ETF has the following trading costs and management fees:
- Annual management fee of 0.32%
- Round-trip trading commissions of 0.20%
- Bid–offer spread of 0.10% on purchase and sale
Excluding the compounding effect, the expected total holding period cost for investing in the ETF over a nine-month holding period is closest to:
选项：
A.
0.54%.
B.
0.62%
C.
0.64%.
解释：
A is correct.
The expected total holding period cost for investing in the ETF over the nine-month holding period is calculated as follows: Total expected holding period cost = Annual management fee + Round-trip trading commissions + Bid–offer spread on purchase/sale. Total expected holding period cost = (9/12) × (0.32%) + 0.20% + 0.10% = 0.54%
bid-offerspread不需要算两次吗？buy and sell
