这个知识点是不是只需要掌握到例题这个程度就可以了？

为什么long call long put的时候convexity会上升？

vesting status

Answer Choice (C) is also incorrect: although it is tempting to assume that using higher-frequency data (e.g., monthly rather than annual observations) will also provide more precise estimates, this assumption is not necessarily true. Although higher-frequency data improve the precision of sample variances, covariances and correlations, they do not improve the precision of the sample mean.这个解答的意思明明说是高频取数可以提升样本方差、协方差和相关性的准确性，但是并不能提升样本均值的准确性。老师视频讲解中好像说的又不是这个意思

官网题，Discretionary TAA attempts to capture asset-class-level return anomalies that have been shown to

GK model 问题

这是什么意思2

老师，这题不太理解，麻烦解释一下，谢谢

这句话什么意思

这句话什么意思