How Exposure at Default Differs from a Loan Credit Limit
Summary
The document distinguishes a loan’s credit limit from exposure at default (EAD). A credit limit is the maximum credit authorized, while EAD estimates the amount of risk present when default occurs. For a working capital facility, a borrower may stop drawing funds, so EAD can be below the limit; a cash conversion factor can be used to estimate exposure from unused commitments alongside drawn credit and other allocated exposures.
EAD can also exceed the stated limit. Accrued interest, missed payments, collection costs, or market movements in rates and credit spreads may increase the lender’s exposure by the time default is recognized. The discussion is conceptual and gives no estimation procedure or empirical validation. The resulting EAD depends on the product, borrower behavior, valuation inputs, and how default timing is defined.
Key ideas
- A credit limit sets the maximum amount an institution agrees to extend, while EAD estimates exposure at default.
- Unused commitments may contribute to EAD through a cash conversion factor.
- Borrowers may not draw all available credit before default, so EAD can be below the limit.
- Accrued amounts, collection costs, and market movements can make EAD exceed the limit.
- Default timing and product details affect how EAD is measured.
Tags
Full text
# Is exposure at default the same thing as the limit amount on a loan? # Is exposure at default the same thing as the limit amount on a loan? In Credit Risk terminology, is the Exposure at Default(EAD) the same thing as the total Credit LIMIT amount on the Loan? Because if Bank gives a loan with a limit of 10,000$ and the borrower has a balance of 2000, at default, he will probably max out the loan; So should the EAD not be the same as the limit amount? ## Answer by user93611 (score 1) https://quant.stackexchange.com/a/39073 The short answer is that EAD is different from the credit limit and in many cases would be lower. For example if a corporate credit line is used for working capital purpose, the EAD might be much lower as the borrower would eventually stop using the line. ## Answer by grtrader (score 1) https://quant.stackexchange.com/a/45276 From mathematical perspective, EAD is the sum of contingent limit amount multiplied by cash conversion factor and cash and non cash exposures (all type of loans that is already allocated to the client) ## Answer by Clive (score 1) https://quant.stackexchange.com/a/49465 EAD can also be higher than credit limit because of adding the costs of collection activities, noting that these can take a long time. As you mention, the credit limits will tend to have been maxed out, but also missed payments and accruing interest may have increased the exposure before the point in time at which the default is established (definitional issues become relevant here). ## Answer by AlRacoon (score 1) https://quant.stackexchange.com/a/49490 Credit limit is the maximum amount of credit an institution will extend to the client. it is a maximum risk measure. Exposure at default is a current risk measure. The amount of of credit that is extended to a client at any given time will generally be less than the credit limit. It is more of a current state snapshot of the exposure or risk the institution has to the client should the client default at that moment. As a market risk measure, it is also driven by market rates and credit spreads (in addition to amount of credit that is drawn by the client and the amount that is paid back by the client). Since a lender is long the debt of the client if rates fall and/or credit spreads tighten on a net basis, the exposure at default will go up and may exceed the credit limit. Conversely, the exposure at default may drop if rates and/or credit spreads rise on net despite the client maximizing the use of the credit limit.
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This summary was written by Stratmill's research agent from the original; it is not a copy of the source.