请问这个怎么按计算器！按了三次都得到0.6048

Consider the following single stock portfolio: Stock ABC has a market position of $200,000 and an annualized volatility of 30%. Calculate the linear VaR with 99% confidence level for a 10 business day holding period. Assume normal distribution and round to the nearest dollar. A、$11,952 B、$27,849 C、$60,000 D、$88,066 答案：B 老师，答案公式中有一个数 252，这是怎么算出来的

如果美国10年长期国债收益率3.233%，这个3.233%是报的到期收益率吗？

Suppose that TBA prices of Fannie Mae 6% for July 9 and August 9 settlements are 103 and 102.6, respectively. The accrued interest to be added to each of these prices is 9 actual/360 days of a month's worth of a 6% coupon, 0.15. Let the expected total principal paydown be 2% and assume short-term rate is 1%. If an investor finance a purchase of an MBS pool using dollar roll valued at 10 million. Which of the following is true? A. The roll trades above carry. B. The roll trades below carry. C. The roll trades at breakeven. D. Hard to determine. 请问下老师为什么光持有资产的计算是： 10M(6%/12+2%)=250000, 请解释下题干里面的2%具体是什么意思，分别在光持有资产和持有+roll里面的应用，谢谢！

Consider three potential statements about Metallgesellschaft (MG): I.MG employed a stack-and-roll hedge because liquidity was highest for short-dated oil futures contracts. II.MG employed a stack-and-roll hedge, and a stack hedge has greater basis risk than a strip hedge. III.The roll return in MG’s stack-and-roll hedge was profitable under oil backwardation but losing under oil contango. 老师可以解释下stack-and-roll这个策略是怎样在反向市场中盈利的吗？谢谢

这道题是不是题目有问题，算出来的答案跟参考答案对不上，明显第一栏的t检验的结果应该是-4.2

An analyst at Bergman International Bank has been asked to explain the calculation of VaR for linear derivatives to the newly hired junior analysts. Which of the following statements best describes the calculation of VaR for a linear derivative on the S&P 500 Index? A、For a futures contract, multiply the VaR of the S&P 500 Index by a sensitivity factor reflecting the percent change in the value of the futures contract for a 1% change in the index value. 答案：A 解析：calculate the VaR for a linear derivative: VaRp = ∆ * VaRf The delta in the formula is a sensitivity factor that reflects the change in value of the derivatives contract for a given change in the value of the underlying. “The delta adjustment to the VaR of the underlying asset accounts for the fact that the relative changes in value between the underlying and the derivatives may not be one for one but nevertheless然而 are linear in nature. Note that options are non-linear.“，老师请问引号内这段话要怎么理解

quoted price 不是104.75 吗？为什么后面还要除100*面值

黄色高亮部分何解 在价格公式中如何体现？

这道题如果A的期限是9个月，B的期限是6个月该怎么选择？我记得以前有一道题，相关性高的期限短不能覆盖，相关性低的期限长能覆盖，让我们选。在相关性和期限之间如果要选择该怎么选？