开发者:上海品职教育科技有限公司 隐私政策详情

应用版本:4.2.11(IOS)|3.2.5(安卓)APP下载

椰子鸡 · 2025年03月26日

何老师不是说 buy CDS 是sell protection的意思么

* 问题详情,请 查看题干

NO.PZ201701230200000605

问题如下:

5. If Deem Advisors enters into a new offsetting contract two months after purchasing protection on Kand Corporation, this action will most likely result in:

选项:

A.

a loss on the CDS position.

B.

a profit on the CDS position.

C.

neither a loss or a profit on the CDS position.

解释:

B is correct.

Deem Advisors purchased protection and therefore is economically short and benefits from an increase in the company’s spread. Since putting on the protection, the credit spread increased by 200 bps, and Deem Advisors realizes the profit by entering into a new, offsetting contract (sells protection to another party at a higher premium).

A is incorrect because a decrease (not increase) in the spread would result in a loss for the credit protection buyer. C is incorrect because Deem Advisors, the credit protection buyer, would profit from an increase in the company’s credit spread, not break even.

buy CDS=sell protection

sell CDS=buy protection

1 个答案

吴昊_品职助教 · 2025年03月26日

嗨,努力学习的PZer你好:


为了避免歧义,现在协会已经不会有buy/sell CDS的说法了。

现在的关系是:

1、buy protection=short CR=short bond

2、sell protection=long CR=long bond


一、首先是Long头寸与Short头寸的定义。

Long的定义:如果能从标的物变好的情况下,我们能盈利,定义这样的头寸是Long头寸。所以,股票、债券、房地产,在情况变好的情况下,就是他们的价格上升,而我们能盈利的操作就是Buy stock/bond,所以Buy stock/bond = long stock/bond exposure;

Short的定义:能从标的物情况变坏的背景下,我们能盈利,定义这样的头寸是Short头寸。对于股票、债券,房地产,情况变坏就是价格下降,我们能盈利就是卖出这些资产(Sell stock/bond),即:Sell stock/bond = short stock/bond exposure。

所以对于普通资产: Buy = long ; sell = short. 注意:这里原版书将CDS index也当成是普通资产,也遵守 Buy = long ; sell = short,只有CDS是特殊的,当成是保险来看待。

二、但是对于CDS来讲,CDS的标的物是信用风险,信用风险的分析比较特殊。当情况变好时,就是债券的信用质量上升时,盈利的头寸是Long credit risk exposure,同时对应的CDS买卖应该是Sell CDS protection,因为信用质量上升卖出保险不用赔付、卖出保险还能赚保费,所以,Sell protection = long credit risk exposure

同理,当情况变差时,代表债券的信用质量下降,盈利的头寸是Short credit risk exposure,对应的CDS买卖应该是:Buy CDS Protection,因为信用质量下降提前买入保险可以获得赔付。所以,Buy CDS Protection = short credit risk exposure

发现CDS的理解刚好和普通资产的理解是反向的。所以这里经常容易犯错。

----------------------------------------------
就算太阳没有迎着我们而来,我们正在朝着它而去,加油!

  • 1

    回答
  • 0

    关注
  • 3

    浏览
相关问题

NO.PZ201701230200000605 问题如下 5. If em Aisors enters into a new offsetting contratwo months after purchasing protection on KanCorporation, this action will most likely result in: A.a loss on the C position. B.a profit on the C position. C.neither a loss or a profit on the C position. B is correct. em Aisors purchaseprotection antherefore is economically short anbenefits from increase in the company’s sprea Sinputting on the protection, the cret spreincrease200 bps, anem Aisors realizes the profit entering into a new, offsetting contra(sells protection to another party a higher premium).A is incorrebecause a crease (not increase) in the sprewoulresult in a loss for the cret protection buyer. C is incorrebecause em Aisors, the cret protection buyer, woulprofit from increase in the company’s cret sprea not breeven. 开始利差是2.75,现在是2.5,C protection buyer 肯定是遭受损失了,这个我理解,我就是没看出来他哪里是put?是因为这个offset吗?

2023-03-21 09:18 1 · 回答

    "一开始我们买保险,支付一个保费。现在要进入一个反向对冲合约来平仓,那就是卖保险,从而可以获得一个保费。但是现在获得的保费比原来支付的保费多200bp,因为现在sprea升了,保费更贵了。所以我们在平仓的时候可以净赚200bp。这200bp就是gain。" 以上部分我完全理解,但我不理解的是合约平仓后怎么继续 hee current portfolio position的cret risk?上课的时候就有这个疑问,平仓后是否不再继续持有之前被保险的债券吗?

2019-04-08 21:32 1 · 回答

请问这道题的gain指的是什么?是指把之前的C以比成本价更高的价格卖掉而赚取的差价(如果是这种情况,那又买了新的C,不应该是不赚不亏么),还是说C本身价格不变,但是因为cret sprea升,导致buyer获得的潜在赔付更多了?    

2019-04-05 17:02 1 · 回答

    这个C position就是指protection buyer吗?就是转有的名词吗?

2018-03-16 18:01 1 · 回答