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Pina · 2021年11月26日

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NO.PZ201702190300000106

问题如下:

The most appropriate response to Troubadour’s supervisor’s question regarding the TSI forward contract is:

选项:

A.

a decrease in TSI’s share price, all else equal.

B.

an increase in the risk-free rate, all else equal

C.

a decrease in the market price of the forward contract, all else equal.

解释:

B is correct.

From the perspective of the long position, the forward value is equal to the present value of the difference in forward prices:

Vt(T)= PVt,T[Ft(T)-F0(T)]

where Ft(T) =FVt,T(St+θt-γt)

All else equal, an increase in the risk-free rate before contract expiration would cause the forward price, Ft(T), to increase. This increase in the forward price would cause the value of the TSI forward contract, from the perspective of the short, to decrease. Therefore, an increase in the risk-free rate would lead to a loss on the short position in the TSI forward contract.

老师好 short equity forward at 250.562289 不是指我希望以后price 低于 250.562289 的时候 我就可以以  250.562289 的价格sell 掉TSI shares 吗?也就是说我是希望以后TSI 's share price 越低越好。  选项A 和B 不都是表示TSI share price 会drop 嘛, 那不都是对我来说是gain 吗? 谢谢。

3 个答案
已采纳答案

lynn_品职助教 · 2021年11月30日

嗨,爱思考的PZer你好:


1)FRA的underlying就是利率,一个会在未来开始,并有确定执行期的借款利率。然后,FRA合约的price or valuation是这个利率能带来的收益。

2)short equity forward contract at $5是指卖空equity forward contract本身,通常这个时候,都是投资者判断这份合约的价值不值5块钱,预期未来合约价格会回归价值,即未来会跌。

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Pina · 2021年11月30日

谢谢老师回复,所以这题是short equity forward contract 的情况,只是价格是at 250.562289, 然后主人公应该是希望价格下跌就可以赚钱,是吗?如果是这样的话, 选项B rates上去的话不是价格会下去吗,主人公就不会亏了?为啥还是选B?

lynn_品职助教 · 2021年11月30日

嗨,爱思考的PZer你好:


是的,主人公是希望价格下跌就可以赚钱。但是同学需要注意的是,这题是问什么情况下,他们这个判断的操作会亏钱。B选项正好是这个头寸亏钱的时候。

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lynn_品职助教 · 2021年11月26日

嗨,爱思考的PZer你好:


新求的FRA就是cash flow的差。画图法,直接折现求value也可以的。在2时刻,假设借进来一笔钱,然后5时刻,loan结束按照FRA利率还本付息,一进一出两个现金流都折现到同一时刻,再做差。

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Pina · 2021年11月30日

老师好 所以这题的underlying asset 是FRA, 是一个 rate?不是the forward equity price of $250.566289?

Pina · 2021年11月30日

想从概念角度理解这题, 换数字一下,我现在short equity forward contract at $5是指我以后会以$5把该contract sell出去是吗? 那我会担心以后该合同的价格上去,是吗? 以后价格上去到11,我亏6,是吗? 该怎么理解?谢谢

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2021-03-31 08:00 1 · 回答

老师我不懂这句话All else equal, increase in the risk-free rate before contraexpiration woulcause the forwarprice, Ft(T), to increase.利率上升怎么会使得forwarprice也上升呢?

2020-08-18 00:29 1 · 回答

不选 C,是因为 Forwarpri已经锁定为 250.562289 了吗?这样不管 forwarpri如何降价,都和我是否亏损无关了

2020-05-31 16:43 1 · 回答

increase in the risk-free rate, all else equa crease in the market priof the forwarcontract, all else equal. B is correct. From the perspective of the long position, the forwarvalue is equto the present value of the fferenin forwarprices: Vt(T)= PVt,T[Ft(T)-F0(T)] where Ft(T) =FVt,T(St+θt-γt) All else equal, increase in the risk-free rate before contraexpiration woulcause the forwarprice, Ft(T), to increase. This increase in the forwarpriwoulcause the value of the TSI forwarcontract, from the perspective of the short, to crease. Therefore, increase in the risk-free rate woulleto a loss on the short position in the TSI forwarcontract.重新定价法中 long/short position 公式分子中 FPt与 FP0 谁减谁的顺序从逻辑上怎么理解?

2020-03-15 15:38 1 · 回答