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Yaq7 · 2021年10月24日

• Forward contracts have a maturity date and need to be "rolled" forward with an FX swap transaction to maintain the hedge.

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NO.PZ201601050100000103

问题如下:

3. The fund manager of Portfolio B is evaluating an internally-managed 100% foreign-currency hedged strategy.

Discuss two forms of trading costs associated with this currency management strategy.

选项:

解释:

Any two of the following four points is acceptable:

Trading requires dealing on the bid/offer spread offered by dealers. Dealer profit margin is based on these spreads. Maintaining a 100% hedge will require frequent rebalancing of minor changes in currency movements and could prove to be expensive. "Churning" the hedge portfolio would progressively add to hedging costs and reduce the hedge's benefits.

A long position in currency options involves an upfront payment. If the options expire out-of-the- money, this is an unrecoverable cost.

Forward contracts have a maturity date and need to be "rolled" forward with an FX swap transaction to maintain the hedge. Rolling hedges typically generate cash inflows and outflows, based on movements in the spot rate as well as roll yield. Cash may have to be raised to settle the hedging transactions (increases the volatility in the organization‘s cash accounts). The management of these cash flow costs can accumulate and become a large portion of the portfolio‘s value, and they become more expensive for cash outflows as interest rates increase.

Hedging requires maintaining the necessary administrative infrastructure for trading (personnel and technology systems). These overhead costs can become a significant portion of the overall costs of currency trading.

中文解析:

对冲成本包括交易成本和机会成本两种,本题考察的是交易成本。主要包括四点:

1. 交易要求在交易商提供的买卖价差上进行交易。经销商的利润是基于这些价差。维持100%的对冲将需要经常对汇率变动的微小变化进行再平衡,而且可能代价高昂。再平衡的时候也会增加对冲成本,降低对冲收益。

2. 期权需要支付期权费,如果到期期权处于OTM的状态,没有被行权的话,这笔期权费将会成为一种无法收回的成本。

3.使用远期合约进行对冲时,因为远期合约有到期日,需要不断向前滚动展期,展期的过程中会产生现金流入和流出。如果产生的是现金的流入,则会增加收益降低成本,但是如果产生的是现金的流出就会增加成本。

4.行政管理费用。对冲需要维护必要的交易管理基础设施(人事和技术系统)。这些间接成本可能会成为交易总成本的重要组成部分。

这个具体怎么操作?

1 个答案

Hertz_品职助教 · 2021年10月25日

嗨,努力学习的PZer你好:


同学你好~

你应该是对远期合约的展期过程有疑问哈。

为了方便表述,我们假设组合A(本币是美元,投资了外币英镑),其投资期限是1年,资产规模是1million,每月进行展期一次。我们来说一下具体是怎么操作的。

(1)首先该组合投资了英镑这种外币资产,担心英镑贬值,因此会short forward on GBP(或者表述为short forward on USD/GBP)。

(2)t= 0时刻:我们short 一个月的forward on GBP(后面简称合约1号),合约规模是1million,即约定了在合约到期(1个月后)按照合约价格卖出英镑换回美元。

(3)t = 1个月:确切的说是还差个几天才到一个月,合约1号马上就要到期了,此时我们的操作是先把合约1号平仓,然后再重新开一个新的一个月的合约(即合约2号),此新的合约我们仍然是short 头寸,合约规模就是1个月这个时刻我们投资的英镑的资产的规模(可能仍然是1million,也可能在这一个月期间涨了或者跌了,资产规模不再等于1million了,这都没有关系,就使得新合约的规模等于现在头寸的规模即可)。

那么平掉之前的short forward合约,需要在现货市场上买入英镑来平仓。因为如果我们不平仓的话,我们就必须按照合约1号的规定的合约价格把我们的英镑资产卖掉了,但我们的投资期限是1年呢,怎么能现在就卖掉呢,所以得在合约马上到期的时候就给平仓平掉,再重新开一个合约。

(4)综上这个展期就分为两步:一是现在现货市场上平掉上一个期货合约,然后紧接着再滚进一份新的合约。

(5)如此每到月末的时候都进行一次展期,直到最后在投资期结束的时候(1年以后),我们按照那时的合约进行交割即可。这便是整个操作过程。

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