第三题，之前讲义中单老师讲r上升，callable bond 相当于pure bond,这样理解了话,不应该是duration 不变吗

这题是什么意思呢？

25题什么意思

请问第10题为什么不是c，之前的基础阶段视频固收143页讲股票价格下降不影响bond的mkt value。还有这个题的price 是指mkt price吧

老师 请问这个N是怎么用计算器求出来的呀 感谢

20题这题是什么意思

请问老师PV的公式是怎么来的？

A client who is a director of a publicly listed corporation is required by law to refrain from trading that company's stock at certain points of the year when disclosure of financial results are pending. In preparing a written investment policy statement (IPS) for this client, how does the manager deal with this restriction on trading? A It is irrelevant to the IPS. B It should be included in the IPS. C It is illegal for the portfolio manager to work with this client. 他是高管他这要求不违法吗？

A client who is a director of a publicly listed corporation is required by law to refrain from trading that company's stock at certain points of the year when disclosure of financial results are pending. In preparing a written investment policy statement (IPS) for this client, how does the manager deal with this restriction on trading? A It is irrelevant to the IPS. B It should be included in the IPS. C It is illegal for the portfolio manager to work with this client. 他是高管他这要求不违法吗？

Exchange-traded derivatives are: A largely unregulated. B traded through an informal network. C guaranteed by a clearinghouse against default. clearinghouse会提供担保吗？