Which of the following is the least accurate statement about the short sale of stocks? A The short seller must pay all dividends or interest to the lender of shares. B Short sales involve time limits for returning the shares borrowed to the lender. C A short sale can be made only on an uptick or a zero uptick trade if the previous trade was an uptick trade. 这道题要讲下，看不懂

You decide to sell short 100 shares of Charlotte Horse Farms when it is selling at its yearly high of 56. Your broker tells you that your margin requirement is 45% and that the commission on the purchase is $155. While you are short the stock, Charlotte pays a $2.50 per share dividend. At the end of one year, you buy 100 shares of Charlotte at 45 to close out your position and are charged a commission of $145. What is your rate of return on the investment? 老师您好，这道题我看解析的时候有个问题，为什么要减去250的红利而不是加哪？

An analyst gathers the following information for an equal-weighted index comprised of assets Able, Baker, and Charlie: The price return of the index is: 答案解析里，为什么不加股利？

An analyst gathers the following information for an equal-weighted index comprised of assets Able, Baker, and Charlie: The price return of the index is:

若问平均收益，英文单词是mean？

1、excess kurtosis表示kurtosis-3，这个概念讲过吗？ 2、C选项表述不对吧？C选项的意思是正态分布又两个或更多随机变量线性组合而成，但解说中说的性质是两个或更多的正态分布线性组合

老师你好，可以这样理解吗？不论什么时候，leverage 与margin 都是互为倒数的，题目问什么时候的leverage就要用对应的margin来计算就可以了，对吗？

这题不严谨啊，应该是sell at least 25$, 而不是sell at 25%, 如果跌的没那么多可以不行权呀

老师你好，关于选项C，是因为可能会破产所以适合用asset based model吗？但是选项C说这个公司拥有drilling right for offshore areas，这应该是无形资产吧？不是说有无形资产不适合用这种方法吗？

不是说correlation越大越没有分散风险的效益吗，所以least amount of risk reduction不就是correlation最大吗，那为什么不是asset2和asset3（-1的线性关系）？？1和2的线性关系从画图上看很小啊，2和3是相反的交叉的。老师解释一下怎么理解这道题啊？？