What Is a Credit Default Swap (CDS) — Insurance Against Default
'If that company can't pay its debt, I'll cover it for you — in return, pay me a premium every year.' The Credit Default Swap (CDS), insurance placed on bond default, is exactly that kind of contract.
Definition of a CDS
A Credit Default Swap (CDS) is a derivative that passes the 'credit risk' of debt such as bonds to another party.
The structure resembles insurance.
· Protection buyer: pays a premium (insurance fee) periodically. · Protection seller: makes up for the loss if the reference company triggers a credit event such as default.
In other words, a bondholder can buy a CDS to set up a safeguard to 'get the principal back even if a default occurs.' It can be placed on a variety of references such as government bonds, corporate bonds, and sovereign debt.
The decisive difference from insurance
A CDS looks like insurance but has an important difference.
Insurance can usually be taken out only on 'something you own,' but a CDS can be bought even without holding the underlying bond. That is, it can also be used as a speculative tool to 'bet' on a particular company's default.
Because of this, far more CDS can exist in the market than the actual size of the bonds, and this can become a cause of risk piling up out of sight.
2008, the disaster the CDS brought on
The danger of the CDS was revealed dramatically in the 2008 financial crisis.
The insurer AIG sold CDS on mortgage-backed securities on a massive scale without setting aside enough collateral. According to reports, that scale reached hundreds of billions of dollars (roughly $440 billion to over $500 billion depending on the source).
When the housing market collapsed, defaults followed one after another, and AIG became unable to cover the compensation it had promised. In the end the U.S. government injected a total of $182 billion in bailout funds and took a 79.9% stake in the company. One company's sale of derivatives shook the entire global financial system.
That said, there is an epilogue that the government later resold its stake and ultimately turned a profit. The CDS itself is a risk-transfer tool, but it left the lesson that if sold excessively without collateral, it can spread into systemic risk.
The scale of AIG-related CDS (about $440 billion to over $500 billion) differs by source, so it is shown as a range. The total bailout of $182 billion and the government's 79.9% stake are confirmed across several sources. This article does not recommend investing in or trading CDS, and notes that it is an institutional product hard for individuals to access.
Frequently Asked Questions
Q. Can individuals buy and sell CDS too?
In practice it is difficult. CDS are over-the-counter derivatives traded mainly among institutions such as banks, insurers, and hedge funds. Individuals find it hard to access them directly, and this article is a conceptual explanation for educational purposes.
Q. Why are CDS said to be dangerous?
Because they can be bought even without holding the bond, more contracts than the actual debt can pile up, and if collateral is insufficient the protection seller can fall into insolvency. The 2008 AIG episode is a case where that risk was realized.
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