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The CDS basis is commonly the CDS fee minus the Z-spread for a fixed-rate cash bond of the same issuer and maturity. For instance, if a corporation's 10-year CDS is trading at 200 bp and the Z-spread for the corporation's 10-year cash bond is 287 bp, then its 10-year CDS basis is –87 bp.
Credit default swaps in their current form have existed since the early 1990s and increased in use in the early 2000s. By the end of 2007, the outstanding CDS amount was $62.2 trillion, [3] falling to $26.3 trillion by mid-year 2010 [4] and reportedly $25.5 [5] trillion in early 2012.
A credit default swap index is a credit derivative used to hedge credit risk or to take a position on a basket of credit entities. Unlike a credit default swap, which is an over the counter credit derivative, a credit default swap index is a completely standardized credit security and may therefore be more liquid and trade at a smaller bid–offer spread.
The credit default swap or CDS has become the cornerstone product of the credit derivatives market. This product represents over thirty percent of the credit derivatives market. [5] The product has many variations, including where there is a basket or portfolio of reference entities, although fundamentally, the principles remain the same.
A Credit valuation adjustment (CVA), [a] in financial mathematics, is an "adjustment" to a derivative's price, as charged by a bank to a counterparty to compensate it for taking on the credit risk of that counterparty during the life of the transaction. "CVA" can refer more generally to several related concepts, as delineated aside.
The option is usually European, exercisable only at one date in the future at a specific strike price defined as a coupon on the credit default swap. Credit default options on single credits are extinguished upon default without any cashflows, other than the upfront premium paid by the buyer of the option. Therefore, buying a payer option is ...
Default probabilities may also be estimated from the observable prices of credit default swaps, bonds, and options on common stock. The simplest approach, taken by many banks, is to use external ratings agencies such as Standard and Poors , Fitch or Moody's Investors Service for estimating PDs from historical default experience.
The Jarrow–Turnbull model is a widely used "reduced-form" credit risk model. It was published in 1995 by Robert A. Jarrow and Stuart Turnbull. [1] Under the model, which returns the corporate's probability of default, bankruptcy is modeled as a statistical process.