6. The index weighting that results in portfolio weights shifting away from securities that have increased in relative value toward securities that have fallen in relative value whenever the portfolio is rebalanced is most accurately described as: A. float-adjusted market-capitalization weighting. B. fundamental weighting. C. equal weighting. 为什么选择B

2. After the public announcement of the merger of two firms, an investor makes abnormal returns by going long on the target firm and short on the acquiring firm. This most likely violates which form of market efficiency? A. Semi-strong-form only B. Semi-strong-form and strong-form C. Weak-form and semi-strong-form 为什么不选择C

1. An informed trader buys a company’s stock. His close friends, who lack information or expertise, imitate his action and buy the stock. Which of the following statements concerning this behavioral bias is most accurate? It: A. is identical to representativeness. B. improves market efficiency. C. is inconsistent with rational behavior. 为什么B 是正确的？

Dark pools是指什么呢？

协方差covariance的算法可以再介绍下吗？有点看不懂公式

老师可以详细讲解下这个斜率吗。

老师，这个12次方计算器怎么按来开根号啊？

老师，这个例子中，贷款利率6%，收了0.5%的费用，投资者收益5.5%，那么银行是怎么赚钱的？

正常公司经营过程中坏账计提比例是否是根据过往公司的坏账比例平均值来计提

老师好。 1、还是不理解现金分红为什么会降低股价（在forward contract估值的时候降低S的价值）。 2、老师说现金分红不会改变股东总财富，那么现金分红的意义在哪里？因为如果公司不搞现金分红，公司可以把这笔现金拿来扩大再生产，对公司来说是有益的。 3、我的理解是公司的现金拿来发放给股东，账上现金减少了，应该是公司的财富减少了，股东的财富增加了，总的财富不变，这样理解对吗？