Credit default swap: Wikis


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From Wikipedia, the free encyclopedia

A credit default swap (CDS) is a swap contract in which the buyer of the CDS makes a series of payments to the seller and, in exchange, receives a payoff if a credit instrument (typically a bond or loan) undergoes a 'Credit Event' (often described as a default) defined as events such as restructuring, bankruptcy or even downgrade of credit rating (less common).

CDS contracts have been compared with insurance, because the buyer pays a premium and, in return, receives a sum of money if one of the events specified in the contract occurs. However, there are a number of differences between CDS and insurance, for example:

  • The buyer of a CDS does not need to own the underlying security or other form of credit exposure; in fact the buyer does not even have to suffer a loss from the default event.[1][2][3][4] In contrast, to purchase insurance, the insured is generally expected to have an insurable interest such as owning a debt obligation;
  • the seller need not be a regulated entity;
  • the seller is not required to maintain any reserves to pay off buyers, although major CDS dealers are subject to bank capital requirements;
  • insurers manage risk primarily by setting loss reserves based on the Law of large numbers, while dealers in CDS manage risk primarily by means of offsetting CDS (hedging) with other dealers and transactions in underlying bond markets;
  • in the United States CDS contracts are generally subject to mark to market accounting, introducing income statement and balance sheet volatility that would not be present in an insurance contract;
  • Hedge accounting may not be available under US Generally Accepted Accounting Principles (GAAP) unless the requirements of FAS 133 are met. In practice this rarely happens.

However the most important difference between CDS and Insurance is simply that an insurance contract provides an indemnity against the losses actually suffered by the policy holder, whereas the CDS provides an equal payout to all holders, calculated using an agreed, market-wide method.

There are also important differences in the approaches used to pricing. The cost of insurance is based on actuarial analysis. CDSs are derivatives whose cost is determined using financial models and by arbitrage relationships with other credit market instruments such as loans and bonds from the same 'Reference Entity' to which the CDS contract refers.

Insurance contracts require the disclosure of all risks involved. CDSs have no such requirement, and, as we have seen in the recent past, many of the risks are unknown or unknowable. Most significantly, unlike insurance companies, sellers of CDSs are not required to maintain any capital reserves to guarantee payment of claims. In that respect, a CDS is an insurance that insures nothing.



Buyer purchased a CDS at time t0 and makes regular premium payments at times t1, t2, t3, and t4. If the associated credit instrument suffers no credit event, then the buyer continues paying premiums at t5, t6 and so on until the end of the contract at time tn.
However, if the associated credit instrument suffered a credit event at t5, then the Protection seller pays the buyer for the loss, and the buyer would cease paying premiums.

A "credit default swap" (CDS) is a credit derivative contract between two counterparties. The buyer makes periodic payments to the seller, and in return receives a payoff if an underlying financial instrument defaults.[5]

As an example, imagine that an investor buys a CDS from AAA-Bank, where the reference entity is Risky Corp. The investor will make regular payments to AAA-Bank, and if Risky Corp defaults on its debt (i.e., misses a coupon payment or does not repay it), the investor will receive a one-time payment from AAA-Bank, and the CDS contract is terminated. If the investor actually owns Risky Corp debt, the CDS can be thought of as hedging. But investors can also buy CDS contracts referencing Risky Corp debt without actually owning any Risky Corp debt. This may be done for speculative purposes, to bet against the solvency of Risky Corp in a gamble to make money if it fails, or to hedge investments in other companies whose fortunes are expected to be similar to those of Risky.

If the reference entity (Risky Corp) defaults, one of two things can happen:

  • Either the investor delivers a defaulted asset to AAA-Bank for a payment of the par value. This is known as physical settlement.
  • Or AAA-Bank pays the investor the difference between the par value and the market price of a specified debt obligation (even if Risky Corp defaults, there is usually some recovery, i.e., not all your money will be lost.) This is known as cash settlement.[citation needed]

The "spread" of a CDS is the annual amount the protection buyer must pay the protection seller over the length of the contract, expressed as a percentage of the notional amount. For example, if the CDS spread of Risky Corp is 50 basis points, or 0.5% (1 basis point = 0.01%), then an investor buying $10 million worth of protection from AAA-Bank must pay the bank $50,000 per year. These payments continue until either the CDS contract expires or Risky Corp defaults.

All things being equal, at any given time, if the maturity of two credit default swaps is the same, then the CDS associated with a company with a higher CDS spread is considered more likely to default by the market, since a higher fee is being charged to protect against this happening. However, factors such as liquidity and estimated loss given default can affect the comparison.

Credit spread rates and credit ratings of the underlying or reference obligations are considered among money managers to be the best indicators of the likelihood of sellers of CDSs having to perform under these contracts.


Credit default swaps can be used by investors for speculation, hedging and arbitrage.



Credit default swaps allow investors to speculate on changes in CDS spreads of single names or of market indices such as the North American CDX index or the European iTraxx index. An investor might believe that an entity's CDS spreads are too high or too low, relative to the entity's bond yields, and attempt to profit from that view by entering into a trade, known as a basis trade, that combines a CDS with a cash bond and an interest-rate swap. Finally, an investor might speculate on an entity's credit quality, since generally CDS spreads will increase as credit-worthiness declines, and decline as credit-worthiness increases. The investor might therefore buy CDS protection on a company to speculate that it is about to default. Alternatively, the investor might sell protection if it thinks that the company's creditworthiness might improve.

For example, a hedge fund believes that Risky Corp will soon default on its debt. Therefore, it buys $10 million worth of CDS protection for two years from AAA-Bank, with Risky Corp as the reference entity, at a spread of 500 basis points (=5%) per annum.

  • If Risky Corp does indeed default after, say, one year, then the hedge fund will have paid $500,000 to AAA-Bank, but will then receive $10 million (assuming zero recovery rate, and that AAA-Bank has the liquidity to cover the loss), thereby making a profit. AAA-Bank, and its investors, will incur a $9.5 million loss unless the bank has somehow offset the position before the default.
  • However, if Risky Corp does not default, then the CDS contract will run for two years, and the hedge fund will have ended up paying $1 million, without any return, thereby making a loss.

Note that there is a third possibility in the above scenario; the hedge fund could decide to liquidate its position after a certain period of time in an attempt to lock in its gains or losses. For example:

  • After 1 year, the market now considers Risky Corp more likely to default, so its CDS spread has widened from 500 to 1500 basis points. The hedge fund may choose to sell $10 million worth of protection for 1 year to AAA-Bank at this higher rate. Therefore over the two years the hedge fund will pay the bank 2 * 5% * $10 million = $1 million, but will receive 1 * 15% * $10 million = $1.5 million, giving a total profit of $500,000.
  • In another scenario, after one year the market now considers Risky much less likely to default, so its CDS spread has tightened from 500 to 250 basis points. Again, the hedge fund may choose to sell $10 million worth of protection for 1 year to AAA-Bank at this lower spread. Therefore over the two years the hedge fund will pay the bank 2 * 5% * $10 million = $1 million, but will receive 1 * 2.5% * $10 million = $250,000, giving a total loss of $750,000. This loss is smaller than the $1 million loss that would have occurred if the second transaction had not been entered into.

Transactions such as these do not even have to be entered into over the long-term. If Risky Corp's CDS spread had widened by just a couple of basis points over the course of one day, the hedge fund could have entered into an offsetting contract immediately and made a small profit over the life of the two CDS contracts.


Credit default swaps are often used to manage the credit risk (i.e., the risk of default) which arises from holding debt. Typically, the holder of, for example, a corporate bond may hedge their exposure by entering into a CDS contract as the buyer of protection. If the bond goes into default, the proceeds from the CDS contract will cancel out the losses on the underlying bond.

Pension fund example: A pension fund owns $10 million of a five-year bond issued by Risky Corp. In order to manage the risk of losing money if Risky Corp defaults on its debt, the pension fund buys a CDS from Derivative Bank in a notional amount of $10 million. The CDS trades at 200 basis points (200 basis points = 2.00 percent). In return for this credit protection, the pension fund pays 2% of $10 million ($200,000) per annum in quarterly installments of $50,000 to Derivative Bank.

  • If Risky Corporation does not default on its bond payments, the pension fund makes quarterly payments to Derivative Bank for 5 years and receives its $10 million back after five years from Risky Corp. Though the protection payments totaling $1 million reduce investment returns for the pension fund, its risk of loss due to Risky Corp defaulting on the bond is eliminated.
  • If Risky Corporation defaults on its debt three years into the CDS contract, the pension fund would stop paying the quarterly premium, and Derivative Bank would ensure that the pension fund is refunded for its loss of $10 million (either by physical or cash settlement - see above). The pension fund still loses the $600,000 it has paid over three years, but without the CDS contract it would have lost the entire $10 million.

Hedging issues related to banks and corporations subject to taxation or using US GAAP for financial reporting: While the economics of entering into a CDS contract to hedge the credit risk in an asset are the same for a pension fund, a bank and a corporation, there are two significant practical differences in how hedges using CDS contracts affect banks and corporations compared with pension plans:

Taxes: For tax purposes, the loss incurred on the Risky Corp.'s debt may be treated very differently from the payout by Derivative Bank to either a corporation or a bank. If the loss on the asset is taxed at a different rate from the profit made on the hedge, then the amount of the CDS swap needed to create a hedge of the Risky Corp.'s debt to the bank or corporation will differ from the [principal] amount of the debt. See Tax Treatment following.

  • Financial reporting treatment may not parallel the economic effects. For example, GAAP generally require that Credit Default Swaps be reported on a mark to market basis, and assets that are held for investment, such as a commercial loan or bonds, be reported at cost unless a probable and significant loss is expected. Thus, hedging a commercial loan using a CDS can induce considerable volatility into the income statement and balance sheet as the CDS changes value over its life due to market conditions and due to the tendency for shorter dated CDS to sell at lower prices than longer dated CDS. Clearly, one can try to account for the CDS as a hedge under FASB 133[6] but in practice that can prove very difficult unless the risky asset owned by the bank or corporation is exactly the same as the Reference Obligation used for the particular CDS that was bought.


When entering into a CDS, both the buyer and seller of credit protection take on counterparty risk. Examples of counter party risks:

  • The buyer takes the risk that the seller will default. If Derivative Bank and Risky Corp. default simultaneously ("double default"), the buyer loses its protection against default by the reference entity. If Derivative Bank defaults but Risky Corp. does not, the buyer might need to replace the defaulted CDS at a higher cost.
  • The seller takes the risk that the buyer will default on the contract, depriving the seller of the expected revenue stream. More important, a seller normally limits its risk by buying offsetting protection from another party - that is, it hedges its exposure. If the original buyer drops out, the seller squares its position by either unwinding the hedge transaction or by selling a new CDS to a third party. Depending on market conditions, that may be at a lower price than the original CDS and may therefore involve a loss to the seller.

In the future, as CDS are moving to becoming an Exchange Traded product, traded and settled via a central exchange ICE TCC, there will no longer be 'counterparty risk', as the risk of the counterparty will be held with the central exchange/ clearing house ICE TCC.

As is true with other forms of over-the-counter derivative, CDS might involve liquidity risk. If one or both parties to a CDS contract must post collateral(which is common), there can be margin calls requiring the posting of additional collateral. The required collateral is agreed on by the parties when the CDS is first issued. This margin amount may vary over the life of the CDS contract, if the market price of the CDS contract changes, or the credit rating of one of the parties changes.


Capital Structure Arbitrage is an example of an arbitrage strategy that utilizes CDS transactions.[7] This technique relies on the fact that a company's stock price and its CDS spread should exhibit negative correlation; i.e. if the outlook for a company improves then its share price should go up and its CDS spread should tighten, since it is less likely to default on its debt. However if its outlook worsens then its CDS spread should widen and its stock price should fall. Techniques reliant on this are known as capital structure arbitrage because they exploit market inefficiencies between different parts of the same company's capital structure; i.e. mis-pricings between a company's debt and equity. An arbitrageur will attempt to exploit the spread between a company's CDS and its equity in certain situations. For example, if a company has announced some bad news and its share price has dropped by 25%, but its CDS spread has remained unchanged, then an investor might expect the CDS spread to increase relative to the share price. Therefore a basic strategy would be to go long on the CDS spread (by buying CDS protection) while simultaneously hedging oneself by buying the underlying stock. This technique would benefit in the event of the CDS spread widening relative to the equity price, but would lose money if the company's CDS spread tightened relative to its equity.

An interesting situation in which the inverse correlation between a company's stock price and CDS spread breaks down is during a Leveraged buyout (LBO). Frequently this will lead to the company's CDS spread widening due to the extra debt that will soon be put on the company's books, but also an increase in its share price, since buyers of a company usually end up paying a premium.

Another common arbitrage strategy aims to exploit the fact that the swap adjusted spread of a CDS should trade closely with that of the underlying cash bond issued by the reference entity. Misalignments in spreads may occur due to technical reasons such as specific settlement differences, shortages in a particular underlying instrument, and the existence of buyers constrained from buying exotic derivatives. The difference between CDS spreads and asset swap spreads is called the basis and should theoretically be close to zero. Basis trades can aim to exploit any differences to make risk-free profit.



Forms of Credit Default Swaps had been in existence from at least the early 1990s, but the modern Credit Default Swaps were invented in 1997 by a team working for JPMorgan Chase.[8][9][10] They were designed to shift the risk of default to a third party, and were therefore less punitive in terms of regulatory capital.[11] The first CDS involved JPMorgan selling the credit risk of Exxon to the European Bank of Reconstruction and Development.[12]

Credit Default Swaps became largely exempt from regulation by the U.S. Securities and Exchange Commission (SEC) with the Commodity Futures Modernization Act of 2000, which was also responsible for the Enron loophole.

Market growth

As the market matured, CDSs came to be used less by banks seeking to hedge against default and more by investors wishing to bet for or against the likelihood that particular companies or portfolios would suffer financial difficulties - see above as well as those seeking to profit from perceived mispricing; the rapid growth of index compared with single name CDS after 2003 reflected this change. The market size for Credit Default Swaps began to grow rapidly from 2003; by the end of 2007, the CDS market had a notional value of $45 trillion. But notional amount began to fall during 2008 as a result of dealer "portfolio compression" efforts, and by the end of 2008 notional amount outstanding had fallen 38 percent to $38.6 trillion.[13]

Market as of 2008

Composition of the United States 15.5 trillion US dollar CDS market at the end of 2008 Q2. Green tints show Prime asset CDSs, reddish tints show sub-prime asset CDSs. Numbers followed by "Y" indicate years until maturity.
Proportion of CDSs nominals (lower left) held by United States banks compared to all derivatives, in 2008Q2. The black disc represents the 2008 public debt.

It is important to note that since default is a relatively rare occurrence (historically around 0.2% of investment grade companies will default in any one year),[14] in most CDS contracts the only payments are the premium payments from buyer to seller. Thus, although the above figures for outstanding notionals are very large, in the absence of default the net cashflows will only be a small fraction of this total: for a 100 bp = 1% spread, the annual cash flows are only 1% of the notional amount.

Regulatory concerns over CDS

The market for Credit Default Swaps attracted considerable concern from regulators after a number of large scale incidents in 2008 , starting with the collapse of Bear Stearns. [15].

In the days and weeks leading up to Bear's collapse, the bank's CDS spread widened dramatically, indicating a surge of buyers taking out protection on the bank. It has been suggested that this widening was responsible for the perception that Bear Stearns was vulnerable, and therefore restricted its access to wholesale capital which eventually led to its forced sale to JP Morgan in March. An alternative, unsupported view is that this surge in CDS protection buyers was a symptom rather than a cause of Bear's collapse; i.e., investors saw that Bear was in trouble, and sought to hedge any naked exposure to the bank, or speculate on its collapse.

In September the bankruptcy of Lehman Brothers caused a total close to $400 billion to become payable to the buyers of CDS protection referenced against the insolvent bank. However the net amount that changed hands was around $7.2 billion [16] This difference is due to the process of 'netting'. Market participants co-operated so that CDS sellers were allowed to deduct from their payouts the inbound funds due to them from their hedging positions. Dealers generally attempt to remain risk-neutral so their losses and gains after big events will on the whole offset each other.

Also in September American International Group (AIG) required a federal bailout because it had been excessively selling CDS protection without hedging against the possibility that the reference entities might decline in value, which exposed the insurance giant to potential losses over $100 Billion. The CDS on Lehman were settled smoothly, as was largely the case for the other 11 credit events occurring in 2008 which triggered payouts[15]. And while it is arguable that other incidents would have been as bad or worse if less efficient instruments than CDS had been used for speculation and insurance purposes, the closing months of 2008 saw regulators working hard to reduce the risk involved in CDS transactions.

In 2008 there was no centralized exchange or clearing house for CDS transactions; they were all done over the counter (OTC). This led to recent calls for the market to open up in terms of transparency and regulation[17]. In November, DTCC, which runs a warehouse for CDS trade confirmations accounting for around 90% of the total market[18], announced that it will release market data on the outstanding notional of CDS trades on a weekly basis.[19] The data can be accessed on the DTCC's website here: [7] The U.S. Securities and Exchange Commission granted an exemption for IntercontinentalExchange to begin guaranteeing credit-default swaps.

The SEC exemption represented the last regulatory approval needed by Atlanta-based Intercontinental. Its larger competitor, CME Group Inc., hasn’t received an SEC exemption, and agency spokesman John Nester said he didn’t know when a decision would be made.

Market as of 2009

The early months of 2009 saw several fundamental changes to the way CDSs operate, resulting from concerns over the instruments' safety after the events of the previous year. According to Deutsche Bank managing director Athanassios Diplas "the industry pushed through 10 years worth of changes in just a few months" By late 2008 processes had been introduced allowing CDSs which offset each other to be cancelled. Along with termination of contracts that have recently paid out such as those based on Lehmans, this had by March reduced the face value of the market down to an estimated $30 trillion.[20] The Bank for International Settlements estimates that outstanding derivatives total $592 trillion.[21] U.S. and European regulators are developing separate plans to stabilize the derivatives market. Additionally there are some globally agreed standards falling into place in March 2009, administered by International Swaps and Derivatives Association (ISDA). Two of the key changes are:

1. The introduction of central clearing houses, one for the US and one for Europe. A clearing house acts as the central counterparty to both sides of a CDS transaction, thereby reducing the counterparty risk that both buyer and seller face.

2. The international standardization of CDS contracts, to prevent legal disputes in ambiguous cases where what the payout should be is unclear.

Speaking before the changes went live , Sivan Mahadevan, a derivatives strategist at Morgan Stanley in New York, stated

A clearinghouse, and changes to the contracts to standardize them, will probably boost activity. ... Trading will be much easier.... We'll see new players come to the market because they’ll like the idea of this being a better and more traded product. We also feel like over time we'll see the creation of different types of products.

In the U.S., central clearing operations began in March 2009 , operated by InterContinental Exchange (ICE). A key competitor also interested in entering the CDS clearing sector is CME Group.

In Europe, CDS Index clearing was launched by ICE's European subsidiary ICE Clear Europe on 31 July. It launched Single Name clearing in Dec 2009. By the end of 2009, it had cleared CDS contracts worth EUR 885 billion reducing the open interest down to EUR 75 billion[8]

Government approvals relating to Intercontinental and its competitor CME

The SEC's approval for ICE's request to be exempted from rules that would prevent it clearing CDSs was the third government action granted to Intercontinental in one week. On March 3, its proposed acquisition of Clearing Corp., a Chicago clearinghouse owned by eight of the largest dealers in the credit-default swap market, was approved by the Federal Trade Commission and the Justice Department. On March 5, the Federal Reserve Board, which oversees the clearinghouse, granted a request for ICE to begin clearing.

Clearing Corp. shareholders including JPMorgan Chase & Co., Goldman Sachs Group Inc. and UBS AG, received $39 million in cash from Intercontinental in the acquisition, as well as the Clearing Corp.’s cash on hand and a 50-50 profit-sharing agreement with Intercontinental on the revenue generated from processing the swaps.

SEC spokesperson John Nestor stated

For several months the SEC and our fellow regulators have worked closely with all of the firms wishing to establish central counterparties.... We believe that CME should be in a position soon to provide us with the information necessary to allow the commission to take action on its exemptive requests.

Other proposals to clear credit-default swaps have been made by NYSE Euronext, Eurex AG and LCH.Clearnet Ltd. Only the NYSE effort is available now for clearing after starting on Dec. 22. As of Jan. 30, no swaps had been cleared by the NYSE’s London- based derivatives exchange, according to NYSE Chief Executive Officer Duncan Niederauer. [22]

Clearing house member requirements

Members of the Intercontinental clearinghouse will have to have a net worth of at least $5 billion and a credit rating of A or better to clear their credit-default swap trades. Intercontinental said in the statement today that all market participants such as hedge funds, banks or other institutions are open to become members of the clearinghouse as long as they meet these requirements.

A clearinghouse acts as the buyer to every seller and seller to every buyer, reducing the risk of a counterparty defaulting on a transaction. In the over-the-counter market, where credit- default swaps are currently traded, participants are exposed to each other in case of a default. A clearinghouse also provides one location for regulators to view traders’ positions and prices.

Other changes and debate on CDS in 2009

There is ongoing debate concerning the possibility of limiting so-called "naked" CDSs. A naked CDS is one where the buyer has no risk exposure to the underlying entity; hence naked CDSs do not directly hedge risk per se, but some suggest are merely speculative bets that actually create risk. Some suggest that buyers be required to have a "stake," or element of risk exposure, in the underlying entity that the CDS pays out on. Others suggest that a mere partial stake in the underlying risk is insufficient, and would insist that buyer protection be limited to insurable risk; that is, the actual value of the capital-at-risk in the underlying entity. This means the CDS buyer would have to own the bond or loan that triggers a pay out on default. Still others, also calling for the outright ban of naked CDSs, cite logic similar to that which prevailed in the call to ban markets for "terroristic events;" - namely, that it is poor public policy to provide financial incentive to one party which pays off only when some other party suffers a loss - the argument being that it is foolish to incentivize the first party to nefariously intervene in the affairs of the second party so as to cause, or to contribute to cause, the second party loss event which has been speculated upon by the first party; such action, should it occur, is called "fomenting the loss". Regardless of the intention of the buyers and sellers of "naked" contracts, it is the absence of ownership risk that is determinate.

Terms of a typical CDS contract

A CDS contract is typically documented under a confirmation referencing the credit derivatives definitions as published by the International Swaps and Derivatives Association.[23] The confirmation typically specifies a reference entity, a corporation or sovereign that generally, although not always, has debt outstanding, and a reference obligation, usually an unsubordinated corporate bond or government bond. The period over which default protection extends is defined by the contract effective date and scheduled termination date.

The confirmation also specifies a calculation agent who is responsible for making determinations as to successors and substitute reference obligations (for example necessary if the original reference obligation was a loan that is repaid before the expiry of the contract), and for performing various calculation and administrative functions in connection with the transaction. By market convention, in contracts between CDS dealers and end-users, the dealer is generally the calculation agent, and in contracts between CDS dealers, the protection seller is generally the calculation agent. It is not the responsibility of the calculation agent to determine whether or not a credit event has occurred but rather a matter of fact that, pursuant to the terms of typical contracts, must be supported by publicly available information delivered along with a credit event notice. Typical CDS contracts do not provide an internal mechanism for challenging the occurrence or non-occurrence of a credit event and rather leave the matter to the courts if necessary, though actual instances of specific events being disputed are relatively rare.

CDS confirmations also specify the credit events that will give rise to payment obligations by the protection seller and delivery obligations by the protection buyer. Typical credit events include bankruptcy with respect to the reference entity and failure to pay with respect to its direct or guaranteed bond or loan debt. CDS written on North American investment grade corporate reference entities, European corporate reference entities and sovereigns generally also include restructuring as a credit event, whereas trades referencing North American high yield corporate reference entities typically do not. The definition of restructuring is quite technical but is essentially intended to respond to circumstances where a reference entity, as a result of the deterioration of its credit, negotiates changes in the terms in its debt with its creditors as an alternative to formal insolvency proceedings (i.e., the debt is restructured). This practice is far more typical in jurisdictions that do not provide protective status to insolvent debtors similar to that provided by Chapter 11 of the United States Bankruptcy Code. In particular, concerns arising out of Conseco's restructuring in 2000 led to the credit event's removal from North American high yield trades.[24]

Finally, standard CDS contracts specify deliverable obligation characteristics that limit the range of obligations that a protection buyer may deliver upon a credit event. Trading conventions for deliverable obligation characteristics vary for different markets and CDS contract types. Typical limitations include that deliverable debt be a bond or loan, that it have a maximum maturity of 30 years, that it not be subordinated, that it not be subject to transfer restrictions (other than Rule 144A), that it be of a standard currency and that it not be subject to some contingency before becoming due.

The premium payments are generally quarterly, with maturity dates (and likewise premium payment dates) falling on 20 March, 20 June, 20 September, and 20 December. Due to the proximity to the IMM dates, which fall on the third Wednesday of these months, these CDS maturity dates are also referred to as "IMM dates".


As described in an earlier section, if a credit event occurs then CDS contracts can either be physically settled or cash settled.

  • Physical settlement: The protection seller pays the buyer par value, and in return takes delivery of a debt obligation of the reference entity. For example, a hedge fund has bought $5 million worth of protection from a bank on the senior debt of a company. In the event of a default, the bank will pay the hedge fund $5 million cash, and the hedge fund must deliver $5 million face value of senior debt of the company (typically bonds or loans, which will typically be worth very little given that the company is in default).
  • Cash settlement: The protection seller pays the buyer the difference between par value and the market price of a debt obligation of the reference entity. For example, a hedge fund has bought $5 million worth of protection from a bank on the senior debt of a company. This company has now defaulted, and its senior bonds are now trading at 25 (i.e. 25 cents on the dollar) since the market believes that senior bondholders will receive 25% of the money they are owed once the company is wound up. Therefore, the bank must pay the hedge fund $5 million * (100%-25%) = $3.75 million.

The development and growth of the CDS market has meant that on many companies there is now a much larger outstanding notional of CDS contracts than the outstanding notional value of its debt obligations. (This is because many parties made CDS contracts for speculative purposes, without actually owning any debt for which they wanted to insure against default.) For example, at the time it filed for bankruptcy on 14 September 2008, Lehman Brothers had approximately $155 billion of outstanding debt[25] but around $400 billion notional value of CDS contracts had been written which referenced this debt.[26] Clearly not all of these contracts could be physically settled, since there was not enough outstanding Lehman Brothers debt to fulfill all of the contracts, demonstrating the necessity for cash settled CDS trades. The trade confirmation produced when a CDS is traded will state whether the contract is to be physically or cash settled.


When a credit event occurs on a major company on which a lot of CDS contracts are written, an auction (also known as a credit-fixing event) may be held to facilitate settlement of a large number of contracts at once, at a fixed cash settlement price. During the auction process participating dealers (e.g., the big investment banks) submit prices at which they would buy and sell the reference entity's debt obligations, as well as net requests for physical settlement against par. A second stage Dutch auction is held following the publication of the initial mid-point of the dealer markets and what is the net open interest to deliver or be delivered actual bonds or loans. The final clearing point of this auction sets the final price for cash settlement of all CDS contracts and all physical settlement requests as well as matched limit offers resulting from the auction are actually settled. According to the International Swaps and Derivatives Association (ISDA), who organised them, auctions have recently proved an effective way of settling the very large volume of outstanding CDS contracts written on companies such as Lehman Brothers and Washington Mutual.[27]

Below is a list of the auctions that have been held since 2005.[28]

Date Name Final price as a percentage of par
2005-06-14 Collins & Aikman - Senior 43.625
2005-06-23 Collins & Aikman - Subordinated 6.375
2005-10-11 Northwest Airlines 28
2005-10-11 Delta Airlines 18
2005-11-04 Delphi Corporation 63.375
2006-01-17 Calpine Corporation 19.125
2006-03-31 Dana Corporation 75
2006-11-28 Dura - Senior 24.125
2006-11-28 Dura - Subordinated 3.5
2007-10-23 Movie Gallery 91.5
2008-02-19 Quebecor World 41.25
2008-10-02 Tembec Inc 83
2008-10-06 Fannie Mae - Senior 91.51
2008-10-06 Fannie Mae - Subordinated 99.9
2008-10-06 Freddie Mac - Senior 94
2008-10-06 Freddie Mac - Subordinated 98
2008-10-10 Lehman Brothers 8.625
2008-10-23 Washington Mutual 57
2008-11-04 Landsbanki - Senior 1.25
2008-11-04 Landsbanki - Subordinated 0.125
2008-11-05 Glitnir - Senior 3
2008-11-05 Glitnir - Subordinated 0.125
2008-11-06 Kaupthing - Senior 6.625
2008-11-06 Kaupthing - Subordinated 2.375
2008-12-09 Masonite [9] - LCDS 52.5
2008-12-17 Hawaiian Telcom - LCDS 40.125
2009-01-06 Tribune - CDS 1.5
2009-01-06 Tribune - LCDS 23.75
2009-01-14 Republic of Ecuador 31.375
2009-02-03 Millennium America Inc 7.125
2009-02-03 Lyondell - CDS 15.5
2009-02-03 Lyondell - LCDS 20.75
2009-02-03 EquiStar 27.5
2009-02-05 Sanitec [10] - 1st Lien 33.5
2009-02-05 Sanitec [11] - 2nd Lien 4.0
2009-02-09 British Vita [12] - 1st Lien 15.5
2009-02-09 British Vita [13] - 2nd Lien 2.875
2009-02-10 Nortel Ltd. 6.5
2009-02-10 Nortel Corporation 12
2009-02-19 Smurfit-Stone CDS 8.875
2009-02-19 Smurfit-Stone LCDS 65.375
2009-02-26 Ferretti 10.875
2009-03-09 Aleris 8
2009-03-31 Station Casinos 32
2009-04-14 Chemtura 15
2009-04-14 Great Lakes 18.25
2009-04-15 Rouse 29.25
2009-04-16 LyondellBasell 2
2009-04-17 Abitibi 3.25
2009-04-21 Charter Communications CDS 2.375
2009-04-21 Charter Communications LCDS 78
2009-04-22 Capmark 23.375
2009-04-23 Idearc CDS 1.75
2009-04-23 Idearc LCDS 38.5
2009-05-12 Bowater 15
2009-05-13 General Growth Properties 44.25
2009-05-27 Syncora 15
2009-05-28 Edshcha 3.75
2009-06-09 HLI Operating Corp LCDS 9.5
2009-06-10 Georgia Gulf LCDS 83
2009-06-11 R.H. Donnelley Corp. CDS 4.875
2009-06-12 General Motors CDS 12.5
2009-06-12 General Motors LCDS 97.5
2009-06-18 JSC Alliance Bank CDS 16.75
2009-06-23 Visteon CDS 3
2009-06-23 Visteon LCDS 39
2009-06-24 RH Donnelley Inc LCDS 78.125
2009-07-09 Six Flags CDS 14
2009-07-09 Six Flags LCDS 96.125
2009-07-21 Lear CDS 38.5
2009-07-21 Lear LCDS 66
2009-11-20 CIT Group Inc. 68.125

Pricing and valuation

There are two competing theories usually advanced for the pricing of credit default swaps. The first, referred to herein as the 'probability model', takes the present value of a series of cashflows weighted by their probability of non-default. This method suggests that credit default swaps should trade at a considerably lower spread than corporate bonds.

The second model, proposed by Darrell Duffie, but also by John Hull and White, uses a no-arbitrage approach.

Probability model

Under the probability model, a credit default swap is priced using a model that takes four inputs; this is similar to the rNPV (risk-adjusted NPV) model used in drug development:

  • the "issue premium",
  • the recovery rate (percentage of notional repaid in event of default),
  • the "credit curve" for the reference entity and
  • the "LIBOR curve".

If default events never occurred the price of a CDS would simply be the sum of the discounted premium payments. So CDS pricing models have to take into account the possibility of a default occurring some time between the effective date and maturity date of the CDS contract. For the purpose of explanation we can imagine the case of a one year CDS with effective date t0 with four quarterly premium payments occurring at times t1, t2, t3, and t4. If the nominal for the CDS is N and the issue premium is c then the size of the quarterly premium payments is Nc / 4. If we assume for simplicity that defaults can only occur on one of the payment dates then there are five ways the contract could end:

  • either it does not have any default at all, so the four premium payments are made and the contract survives until the maturity date, or
  • a default occurs on the first, second, third or fourth payment date.

To price the CDS we now need to assign probabilities to the five possible outcomes, then calculate the present value of the payoff for each outcome. The present value of the CDS is then simply the present value of the five payoffs multiplied by their probability of occurring.

This is illustrated in the following tree diagram where at each payment date either the contract has a default event, in which case it ends with a payment of N(1 − R) shown in red, where R is the recovery rate, or it survives without a default being triggered, in which case a premium payment of Nc / 4 is made, shown in blue. At either side of the diagram are the cashflows up to that point in time with premium payments in blue and default payments in red. If the contract is terminated the square is shown with solid shading.

Cashflows for a Credit Default Swap.

The probability of surviving over the interval ti − 1 to ti without a default payment is pi and the probability of a default being triggered is 1 − pi. The calculation of present value, given discount factors  of δ1 to δ4 is then

Description Premium Payment PV Default Payment PV Probability
Default at time t1 0\, N(1-R) \delta_1\, 1-p_1\,
Default at time t2 -\frac{Nc}{4} \delta_1 N(1-R) \delta_2\, p_1(1-p_2)\,
Default at time t3 -\frac{Nc}{4}(\delta_1 + \delta_2) N(1-R) \delta_3\, p_1 p_2 (1-p_3)\,
Default at time t4 -\frac{Nc}{4}(\delta_1 + \delta_2 + \delta_3) N(1-R) \delta_4\, p_1 p_2 p_3 (1-p_4)\,
No defaults -\frac{Nc}{4} ( \delta_1 + \delta_2 + \delta_3 + \delta_4 ) 0\, p_1 \times p_2 \times p_3 \times p_4

The probabilities p1, p2, p3, p4 can be calculated using the credit spread curve. The probability of no default occurring over a time period from t to t + Δt decays exponentially with a time-constant determined by the credit spread, or mathematically p = exp( − s(tt / (1 − R)) where s(t) is the credit spread zero curve at time t. The riskier the reference entity the greater the spread and the more rapidly the survival probability decays with time.

To get the total present value of the credit default swap we multiply the probability of each outcome by its present value to give

PV\, =\, (1 - p_1) N(1-R) \delta_1\,
+ p_1 ( 1 - p_2 ) [ N(1-R) \delta_2 - \frac{Nc}{4} \delta_1 ]
+p_1 p_2 ( 1 - p_3 ) [ N(1-R) \delta_3 - \frac{Nc}{4} (\delta_1 + \delta_2) ]
+p_1 p_2 p_3 (1 - p_4) [ N(1-R) \delta_4 - \frac{Nc}{4} (\delta_1 + \delta_2 + \delta_3) ]
-p_1 p_2 p_3 p_4 ( \delta_1 + \delta_2 + \delta_3 + \delta_4 ) \frac{Nc}{4}

No-arbitrage model

In the 'no-arbitrage' model proposed by both Duffie, and Hull-White, it is assumed that there is no risk free arbitrage. Duffie uses the LIBOR as the risk free rate, whereas Hull and White use US Treasuries as the risk free rate. Both analyses make simplifying assumptions (such as the assumption that there is zero cost of unwinding the fixed leg of the swap on default), which may invalidate the no-arbitrage assumption. However the Duffie approach is frequently used by the market to determine theoretical prices. Under the Duffie construct, the price of a credit default swap can also be derived by calculating the asset swap spread of a bond. If a bond has a spread of 100, and the swap spread is 70 basis points, then a CDS contract should trade at 30. However there are sometimes technical reasons why this will not be the case, and this may or may not present an arbitrage opportunity for the canny investor. The difference between the theoretical model and the actual price of a credit default swap is known as the basis.


Critics of the huge credit default swap market have claimed that it has been allowed to become too large without proper regulation and that, because all contracts are privately negotiated, the market has no transparency. Furthermore, there have even been claims that CDSs exacerbated the 2008 global financial crisis by hastening the demise of companies such as Lehman Brothers and AIG.[29]

In the case of Lehman Brothers, it is claimed that the widening of the bank's CDS spread reduced confidence in the bank and ultimately gave it further problems that it was not able to overcome. However, proponents of the CDS market argue that this confuses cause and effect; CDS spreads simply reflected the reality that the company was in serious trouble. Furthermore, they claim that the CDS market allowed investors who had counterparty risk with Lehman Brothers to reduce their exposure in the case of their default.

Credit default swaps have also faced criticism that they contributed to a breakdown in negotiations during the GM bankruptcy, because bondholders would benefit from the credit event of a GM bankruptcy due to their holding of CDSs. Critics speculate that these creditors were incentivized into pushing for the company to enter bankruptcy protection.[30] Due to a lack of transparency, there was no way to find out who the protection buyers and protection writers were, and they were subsequently left out of the negotiation process.[31]

It was also reported after Lehman's bankruptcy that the $400 billion notional of CDS protection which had been written on the bank could lead to a net payout of $366 billion from protection sellers to buyers (given the cash-settlement auction settled at a final price of 8.625%) and that these large payouts could lead to further bankruptcies of firms without enough cash to settle their contracts.[32] However, industry estimates after the auction suggested that net cashflows would only be in the region of $7 billion.[32] This is because many parties held offsetting positions; for example if a bank writes CDS protection on a company it is likely to then enter an offsetting transaction by buying protection on the same company in order to hedge its risk. Furthermore, CDS deals are marked-to-market frequently. This would have led to margin calls from buyers to sellers as Lehman's CDS spread widened, meaning that the net cashflows on the days after the auction are likely to have been even lower.[27] Senior bankers have argued that not only has the CDS market functioned remarkably well during the financial crisis, but that CDS contracts have been acting to distribute risk just as was intended, and that it is not CDSs themselves that need further regulation, but the parties who trade them.[33]

Some general criticism of financial derivatives is also relevant to credit derivatives. Warren Buffett famously described derivatives bought speculatively as "financial weapons of mass destruction." In Berkshire Hathaway's annual report to shareholders in 2002, he said, "Unless derivatives contracts are collateralized or guaranteed, their ultimate value also depends on the creditworthiness of the counterparties to them. In the meantime, though, before a contract is settled, the counterparties record profits and losses—often huge in amount—in their current earnings statements without so much as a penny changing hands. The range of derivatives contracts is limited only by the imagination of man (or sometimes, so it seems, madmen)."[34] To hedge the counterparty risk of entering a CDS transaction, one practice is to buy CDS protection on one's counterparty. The positions are marked-to-market daily and collateral pass from buyer to seller or vice versa to protect both parties against counterparty default, but money does not always change hands due to the offset of gains and losses by those who had both bought and sold protection. Depository Trust & Clearing Corporation, the clearinghouse for the majority of trades in the US over-the-counter market, stated in October 2008 that once offsetting trades were considered, only an estimated $6 billion would change hands on October 21, during the settlement of the CDS contracts issued on Lehman Brothers' debt, which amounted to somewhere between $150 to $360 billion.[35] Despite Buffett's criticism on derivatives, in October 2008 Berkshire Hathaway revealed to regulators that it has entered into at least $4.85 billion in derivative transactions.[36] Buffett stated in his 2008 letter to shareholders that Berkshire Hathaway has no counterparty risk in its derivative dealings because Berkshire require counterparties to make payments when contracts are inititated, so that Berkshire always holds the money.[37] Berkshire Hathaway was a large owner of Moody's stock during the period that it was one of two primary rating agencies for subprime CDOs, a form of mortgage security derivative dependant on the use of credit default swaps.

Systemic risk

The risk of counterparties defaulting has been amplified during the 2008 financial crisis, particularly because Lehman Brothers and AIG were counterparties in a very large number of CDS transactions. This is an example of systemic risk, risk which threatens an entire market, and a number of commentators have argued that size and deregulation of the CDS market have increased this risk.

For example, imagine if a hypothetical mutual fund had bought some Washington Mutual corporate bonds in 2005 and decided to hedge their exposure by buying CDS protection from Lehman Brothers. After Lehman's default, this protection was no longer active, and Washington Mutual's sudden default only days later would have led to a massive loss on the bonds, a loss that should have been insured by the CDS. There was also fear that Lehman Brothers and AIG's inability to pay out on CDS contracts would lead to the unraveling of complex interlinked chain of CDS transactions between financial institutions.[38] So far this does not appear to have happened, although some commentators have noted that because the total CDS exposure of a bank is not public knowledge, the fear that one could face large losses or possibly even default themselves was a contributing factor to the massive decrease in lending liquidity during September/October 2008.[39]

Chains of CDS transactions can arise from a practice known as "netting".[40] Here, company B may buy a CDS from company A with a certain annual "premium", say 2%. If the condition of the reference company worsens, the risk premium will rise, so company B can sell a CDS to company C with a premium of say, 5%, and pocket the 3% difference. However, if the reference company defaults, company B might not have the assets on hand to make good on the contract. It depends on its contract with company A to provide a large payout, which it then passes along to company C. The problem lies if one of the companies in the chain fails, creating a "domino effect" of losses. For example, if company A fails, company B will default on its CDS contract to company C, possibly resulting in bankruptcy, and company C will potentially experience a large loss due to the failure to receive compensation for the bad debt it held from the reference company. Even worse, because CDS contracts are private, company C will not know that its fate is tied to company A; it is only doing business with company B.

As described above, the establishment of a central exchange or clearing house for CDS trades would help to solve the "domino effect" problem, since it would mean that all trades faced a central counterparty guaranteed by a consortium of dealers.

Tax treatment

The U.S federal income tax treatment of credit default swaps is uncertain.[41] Commentators generally believe that, depending on how they are drafted, they are either notional principal contracts or options for tax purposes,[42] but this is not certain. There is a risk of having credit default swaps recharacterized as different types of financial instruments because they resemble put options and credit guarantees. In particular, the degree of risk depends on the type of settlement (physical/cash and binary/FMV) and trigger (default only/any credit event).[43] If a credit default swap is a notional principal contract, periodic and nonperiodic payments on the swap are deductible and included in ordinary income.[44] If a payment is a termination payment, its tax treatment is even more uncertain.[45] In 2004, the Internal Revenue Service announced that it was studying the characterization of credit default swaps in response to taxpayer confusion,[46] but it has not yet issued any guidance on their characterization. A taxpayer must include income from credit default swaps in ordinary income if the swaps are connected with trade or business in the United States.[47]


A new type of default swap is the "loan only" credit default swap (LCDS). This is conceptually very similar to a standard CDS, but unlike "vanilla" CDS, the underlying protection is sold on syndicated secured loans of the Reference Entity rather than the broader category of "Bond or Loan". Also, as of May 22, 2007, for the most widely traded LCDS form, which governs North American single name and index trades, the default settlement method for LCDS shifted to auction settlement rather than physical settlement. The auction method is essentially the same that has been used in the various ISDA cash settlement auction protocols, but does not require parties to take any additional steps following a credit event (i.e., adherence to a protocol) to elect cash settlement. On October 23, 2007, the first ever LCDS auction was held for Movie Gallery.[14]

Because LCDS trades are linked to secured obligations with much higher recovery values than the unsecured bond obligations that are typically assumed to be cheapest to deliver in respect of vanilla CDS, LCDS spreads are generally much tighter than CDS trades on the same name.

See also


  1. ^ [1]Cox, Christopher, Chairman, U.S. Securities and Exchange Commission. Testimony Concerning Turmoil in U.S. Credit Markets: Recent Actions Regarding Government Sponsored Entities, Investment Banks and Other Financial Institutions. Before the Senate Committee on Banking, Housing, and Urban Affairs. September 23, 2008. Accessed 3-17-09.
  2. ^ Mark Garbowski (2008-10-24). "United States: Credit Default Swaps: A Brief Insurance Primer". Retrieved 2008-11-03. "like insurance insofar as the buyer collects when an underlying security defaults ... unlike insurance, however, in that the buyer need not have an "insurable interest" in the underlying security" 
  3. ^ Gretchen Morgenson (2008-08-10). "Credit default swap market under scrutiny". Retrieved 2008-11-03. "If a default occurs, the party providing the credit protection - the seller - must make the buyer whole on the amount of insurance bought." 
  4. ^ Karel Frielink (2008-08-10). "Are credit default swaps insurance products?". Retrieved 2008-11-03. "If the fund manager acts as the protection seller under a CDS, there is some risk of breach of insurance regulations for the manager.... There is no Netherlands Antilles case law or literature available which makes clear whether a CDS constitutes the ‘conducting of insurance business’ under Netherlands Antilles law. However, if certain requirements are met, credit derivatives will not qualify as an agreement of (non-life) insurance because such an arrangement would in those circumstances not contain all the elements necessary to qualify it as such." 
  5. ^ CFA Institute. (2008). Derivatives and Alternative Investments. pg G-11. Boston: Pearson Custom Publishing. ISBN 0-536-34228-8.
  6. ^ FASB 133
  7. ^ [2]Chatiras, Manolis, and Barsendu Mukherjee. Capital Structure Arbitrage: Investigation using Stocks and High Yield Bonds. Amherst, MA: Center for International Securities and Derivatives Markets, Isenberg School of Management, University of Massachusetts, Amherst, 2004. Accessed 3-17-09.
  8. ^ [3]Teather, David. “The woman who Built financial ‘Weapon of Mass Destruction.’” The Guardian. September 20, 2008. Accessed 3-17-09
  9. ^ Engdahl, William (2008-06-06). "CREDIT DEFAULT SWAPS THE NEXT CRISIS". Retrieved 2008-11-02. 
  10. ^ [4] Tett, Gillian. “The Dream Machine: Invention of Credit Derivatives. Financial Times. March 24, 2006. Accessed 3-17-09.
  11. ^ "Credit Default Swaps: From Protection To Speculation". Retrieved 2 January 2009. 
  12. ^ Outsmarted
  13. ^ ISDA Market Survey, Year-End 2008
  14. ^'s/defaultcurves.htm
  15. ^ a b Colin Barr. "The truth about credit default swaps". CNN / Fortune. Retrieved 2009-03-27. 
  16. ^
  17. ^
  18. ^
  19. ^
  20. ^ Aline Van Duyn. "Worries Remain Even After CDS Clean-Up". The Financial Times. Retrieved 2009-03-12. 
  21. ^ Kevin Hamlin. "Mobius Says Derivatives, Stimulus to Spark New Crisis". Bloomberg News. Retrieved 2009-07-18. 
  22. ^ Matthew Leising and Shannon D. Harrington. "Intercontinental to Clear Credit Swaps Next Week". Bloomberg. Retrieved 2009-03-12. 
  23. ^ 2003 Credit Derivatives Definitions
  24. ^
  25. ^
  26. ^,dwp_uuid=11f94e6e-7e94-11dd-b1af-000077b07658.html
  27. ^ a b
  28. ^ Markit. Tradeable Credit Fixings. Retrieved 2008-10-28
  29. ^ [5]Phillips, Matthew. “The Monster That Ate Wall Street.” Newsweek. October 6, 2008. Accessed 3-17-09.
  30. ^ "Gannett and the Side Effects of Default Swaps". 2009-06-23. Retrieved 2009-07-14. 
  31. ^ "Protecting GM from Credit Default Swap Holders publisher=Firedoglake". 2009-05-14. Retrieved 2009-07-14. 
  32. ^ a b
  33. ^ "Daily Brief". 2008-10-28. Retrieved 2008-11-06. 
  34. ^ Warren Buffett (2003-02-21). "Berkshire Hathaway Inc. Annual Report 2002" (PDF). Berkshire Hathaway. Retrieved 2008-09-21. 
  35. ^ Kim Asger Olsen. Pay-up time for Lehman swaps October 22, 2008.
  36. ^
  37. ^ = Warren Buffett. "Berkshire Hathaway Inc. Annual Report 2008" (PDF). Berkshire Hatahway. Retrieved 2009-12-21. 
  38. ^
  39. ^
  40. ^ Unregulated Credit Default Swaps Led to Weakness. All things Considered, National Public Radio. 31 Oct 2008.
  41. ^ Nirenberg, David Z. & Steven L. Kopp. “Credit Derivatives: Tax Treatment of Total Return Swaps, Default Swaps, and Credit-Linked Notes,” Journal of Taxation, Aug. 1997: 1. Peaslee, James M. & David Z. Nirenberg. Federal Income Taxation of Securitization Transactions: Cumulative Supplement No. 7, November 26, 2007, 85. Retrieved July 28, 2008. Ari J. Brandes. A Better Way to Understand Credit Default Swaps. Tax Notes (July 21, 2008). Earlier version of paper available at: [6].
  42. ^ Peaslee & Nirenberg, 129.
  43. ^ Nirenberg & Kopp, 8.
  44. ^ Id.
  45. ^ Id.
  46. ^ Peaslee & Nirenberg, 89.
  47. ^ Department of the Treasury, Internal Revenue Service, at the IRS website. “2007 Instructions for Form 1042-S: Foreign Person’s U.S. Source Income Subject to Withholding,” 4. Retrieved July 28, 2008.

External links

In the news

Simple English

A credit default swap (or CDS for short) is a kind of investment where you pay someone so they will pay you if a certain company gives up on paying its bonds, or defaults. A credit default swap is like insurance on bonds, but different from insurance in important ways:

  • Insurance companies make sure you own the thing you're insuring, but you can buy credit default swaps for bonds you don't own.
  • The government makes rules (called regulations) for insurance, but they don't make any yet for credit default swaps.
  • Insurance companies have to have enough money in case lots of people need to collect insurance at the same time. Because there aren't many rules for CDS sellers, they don't have to be as careful.

Because nobody makes sure you have the bonds you get credit default swaps for, people can speculate on them by buying credit default swaps on companies they think will get in trouble.

= Role in Financial Crisis of 2008


When Lehman Brothers went bankrupt on September 15, 2008, it defaulted on its bonds. The insurance company AIG had sold lots of credit default swaps for Lehman, but they didn't have enough money to pay all the people they had sold them to.

This is because the way lots of companies speculated by hedging on credit default swaps. They bought credit default swaps for a company, and then sold credit default swaps for the same company when the CDSes got more expensive. For example, if you bought a some Lehman Brothers CDSes from AIG where you had to pay $500,000, and you sold the same number of CDSes on Lehman a year later for $600,000, you made $100,000. If Lehman defaulted, you're supposed to pay the people you sold the CDSes to, but that should be OK because now AIG is supposed to pay you for the CDSes you bought.

The problem was that so many companies did that that when Lehman collapsed, nobody had enough money for the people they sold CDSes to. They tried getting it from the companies they'd bought CDSes from, but they didn't have enough money either. Those companies tried collecting from the companies that owed them money, but they didn't have enough either, and so on. Since AIG had sold so many of these, people were afraid that AIG would just give up on trying to pay them all. If they had done that, there would be a domino effect where everybody would go out of business. Because so many companies would've gone out of business, the government decided to help AIG pay so the economy wouldn't collapse.

Role in the Greek Financial Crisis

When people found out that the Greek government owed more money than everybody thought it did, people who didn't own any Greek government bonds started buying credit default swaps on Greek bonds. They did that because they thought Greece would give up on trying to pay, so the bonds would become worthless and the people who sold the credit default swaps would pay them. Unfortunately, this makes people who have Greek bonds nervous, so they want to sell them and not buy any more. That makes it hard for Greece to borrow money to fix its money problems.


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