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珈柠 · 2024年08月15日

CFA|

NO.PZ2023040401000012

问题如下:

Which of the following statements best describes the payoff from a forward contract?

选项:

A.

The buyer has more to gain going long than the seller has to lose going short.

B.

The buyer profits if the price of the underlying at expiration exceeds the forward price.

C.

The gains from owning the underlying versus owning the forward contract are equivalent.

解释:

B is correct. The buyer is obligated to pay the forward price F0(T) at expiration and receives an asset worth ST, the price of the underlying. The contract effectively pays off ST – F0(T), the value of the contract at expiration. The buyer therefore profits if ST > F0(T).

A is incorrect because the long and the short are engaged in a zero-sum game. This is a type of competition in which one participant’s gains are the other’s losses, with their payoffs effectively being mirror images.

C is incorrect because although the gain from owning the underlying and the gain from owning the forward are both driven by ST, the price of the underlying at expiration, they are not the same value. The gain from owning the underlying would be ST – S0, the change in its price, whereas the gain from owning the forward would be ST – F0(T), the value of the forward at expiration.

请问A选项是什么意思?going long,going short没看懂

2 个答案
已采纳答案

李坏_品职助教 · 2024年08月15日

嗨,努力学习的PZer你好:


本题的payoff指的是远期合约中,多头和空头的利润。


多头的利润(payoff)是等于到期日的现货资产价格ST减去期初约定的远期价格F0(T),是ST-F0(T)。

而空头的利润(payoff)是等于-[ST - F0(T)]。


可以看出多头与空头的payoff是恰好互为相反数,也可以认为多头的gain就是空头的loss。

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李坏_品职助教 · 2024年08月15日

嗨,从没放弃的小努力你好:


A选项的意思是,远期合约的多头(买方)的潜在利润,大于远期合约的空头(卖方)的潜在亏损。

在衍生品交易中,一方的利润,就是另一方的亏损,多头赚的钱就是空头亏损的钱。所以应该是多头的潜在利润等于空头的潜在亏损,而不是大于。


going long就是说多头,going short是在说空头。

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加油吧,让我们一起遇见更好的自己!

珈柠 · 2024年08月15日

多头的潜在利润大于空头的潜在亏损的话,不是就产生了payoff了吗?