FRM Exam Part II · Fundamentals of Credit Risk

Credit Risk Mitigation: Collateral, Netting and Guarantees

Updated 11 October 2026 · Fact-checked

Credit risk mitigation reduces the loss a lender suffers if a borrower defaults. Collateral lowers loss given default, netting lowers exposure, guarantees and credit derivatives shift risk to a third party, and covenants reduce the chance of default. To solve questions, find the exposure, apply the mitigant, then check what risk remains.

Understand Credit Risk Mitigation: Collateral, Netting and Guarantees

A lender faces loss when a borrower defaults. Expected loss = PD × LGD × EAD. Each mitigation technique attacks one of these three parts, or it moves the loss to someone else. If you remember this, most questions become simple.

Collateral is an asset pledged to the lender. If the borrower defaults, the lender sells it and keeps the proceeds. Collateral mainly lowers LGD. Its value can fall, so the lender applies a haircut, a percentage cut to the market value. Volatile or illiquid assets get larger haircuts. Haircuts also cover currency mismatch between the loan and the collateral.

Netting applies when two parties have many contracts. Under a legally enforceable close-out netting agreement, all trades are terminated at default and replaced by one net amount. Without netting, the lender must pay what it owes to the defaulter but can only claim a share of what it is owed. Netting lowers EAD. Its benefit depends on legal enforceability and on how much the trades offset each other.

Guarantees and credit derivatives transfer risk. A guarantor promises to pay if the borrower fails. A credit default swap (CDS) buys protection: the lender pays a premium and receives a payment if a credit event occurs. Risk shifts from the borrower to the protection seller. This creates new risks: the guarantor or seller may itself default, and the protection may not match the loan. A mismatch in maturity, currency or the reference obligation leaves a gap called basis risk. A lender is hurt most when the guarantor's default is likely to occur together with the borrower's. This is wrong-way risk.

Covenants are promises written into the loan agreement. Positive covenants require actions, such as providing financial statements. Negative covenants restrict actions, such as extra borrowing or dividends. Financial covenants set limits on ratios, such as leverage or interest cover. A breach lets the lender renegotiate or demand repayment early, so covenants lower PD and give early warning.

Key formulas to remember

Expected loss: EL = PD × LGD × EAD; Collateral and guarantees mainly cut LGD. Netting cuts EAD. Covenants aim to cut PD.
Collateral value after haircut: Adjusted collateral = Market value × (1 − haircut); The haircut reflects price volatility, illiquidity and currency mismatch.
Net exposure with collateral: Exposure after collateral = max(0, Exposure − Adjusted collateral); The result cannot be negative for the lender's credit exposure.
Exposure with and without netting: Without netting = Σ max(Vi, 0); with netting = max(Σ Vi, 0); Vi is the value of trade i to the lender. Netting never raises exposure.
Netting ratio: Net-to-gross ratio = Net exposure ÷ Gross exposure; A lower ratio means a larger netting benefit.
Guarantee substitution: Protected amount takes the guarantor's risk; the remainder keeps the borrower's risk; Only the covered part is substituted, and only if the guarantee is legally valid.
CDS hedge: Payout on credit event = Notional × (1 − Recovery rate); Assumes cash settlement at the recovery rate. Premium is paid until the credit event or maturity.

How to solve Credit Risk Mitigation: Collateral, Netting and Guarantees questions

Use this order for any mitigation question. It keeps you from mixing up which risk each tool reduces.

1Identify the exposure: loan amount, or the positive value of derivative trades to you.
2Name which parameter the technique targets: PD, LGD or EAD.
3Check that the mitigant is legally enforceable and valid (netting agreement, perfected collateral, valid guarantee).
4Compute the adjusted values: apply the haircut to collateral, and net the trade values only within one netting set.
5Subtract the mitigant from exposure, flooring at zero, or substitute the guarantor's risk for the covered part.
6Look at what remains: basis risk, guarantor default, wrong-way risk, liquidity of collateral.
7Choose the option that matches both the number and the correct interpretation.

Quickest way: Haircut, net, floor at zero

When to use it: Use for numerical questions on collateral, netting or CDS payouts when time is short.

Netting: add all trade values inside the netting set, then floor at zero. Without netting, add only the positives.
Collateral: multiply market value by (1 − haircut), then subtract from exposure and floor at zero.
CDS: payout = notional × (1 − recovery).
For concept questions, match the tool to its target: collateral and guarantees to LGD, netting to EAD, covenants to PD.

Common mistakes in Credit Risk Mitigation: Collateral, Netting and Guarantees

Applying the haircut by adding it to the collateral value instead of subtracting it.
Students think of the haircut as a margin added for safety.
Fix: The haircut reduces the value the lender can count. Use market value × (1 − haircut).
Netting trades across different counterparties or without a legal agreement.
The arithmetic looks the same, so the legal condition is ignored.
Fix: Net only trades inside one enforceable netting agreement with one counterparty.
Saying netting can increase exposure.
Students confuse netting with adding trades.
Fix: Net exposure is never greater than gross exposure. Netting only helps when some trades have positive and some negative value.
Treating a guarantee or CDS as removing all risk.
The risk looks transferred, so students forget what remains.
Fix: Remember the counterparty risk of the protection seller, basis risk from mismatches, and wrong-way risk if the seller is linked to the borrower.
Thinking covenants reduce loss after default.
Covenants sit in the same contract as collateral, so students group them together.
Fix: Covenants act before default. They reduce PD and give early warning, and a breach lets the lender act sooner.
Leaving negative exposure after subtracting collateral.
Students stop at the subtraction.
Fix: Credit exposure to the lender cannot go below zero. Floor the result at zero.

Worked examples

Example 1

A bank has three OTC derivative trades with one counterparty under an enforceable close-out netting agreement. Values to the bank are +USD 12 million, −USD 5 million and +USD 3 million. What is the exposure with netting, without netting, and the net-to-gross ratio?

Show the solution

Without netting, add only the positive values: 12 + 3 = USD 15 million.
With netting, add all values: 12 − 5 + 3 = USD 10 million. This is above zero, so exposure is USD 10 million.
Net-to-gross ratio = 10 ÷ 15 = 0.667, or about 66.7%.

Answer: Exposure is USD 10 million with netting and USD 15 million without. The net-to-gross ratio is about 66.7%.

Example 2

A bank lends EUR 10 million to a firm and holds listed bonds worth EUR 9 million as collateral. The supervisory haircut on the bonds is 20%. Loss given default on the uncovered part is assumed to be 50%, and the covered part has no loss. What is the expected loss on the uncovered part if the PD is 2%?

Show the solution

Adjusted collateral = 9 × (1 − 0.20) = EUR 7.2 million.
Uncovered exposure = 10 − 7.2 = EUR 2.8 million.
Loss on uncovered part if default occurs = 2.8 × 50% = EUR 1.4 million.
Expected loss = PD × loss if default occurs = 2% × 1.4 = EUR 0.028 million, which is EUR 28,000.

Answer: The expected loss is EUR 28,000. If default did occur, the loss would be EUR 1.4 million.

Exam tips

Always ask first which parameter the tool changes: PD, LGD or EAD. Many conceptual options are wrong on this alone.
Watch for words like enforceable, perfected and legally valid. Without them, the mitigation may not count.
In netting questions, check whether the net sum is negative. If so, exposure is zero.
For guarantees and CDS, look for the residual risks: counterparty, basis and wrong-way risk.
Larger haircuts go with more volatile, less liquid or currency-mismatched collateral.

Practice questions from Fundamentals of Credit Risk

Credit Risk Mitigation: Collateral, Netting and Guarantees in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

CMA FinalCredit Risk Mitigation and Transfer

Credit Risk Mitigation: Collateral, Netting and Guarantees: frequently asked questions

How does netting reduce credit exposure?

At default, all trades under one netting agreement are combined into a single net amount. Positive and negative values offset each other. The lender's claim is the net sum, floored at zero, instead of the sum of all positive values.

What is a collateral haircut and why is it applied?

A haircut is a percentage deduction from the market value of collateral. It protects the lender if the collateral price falls or the asset is hard to sell. More volatile, illiquid or foreign-currency collateral gets a larger haircut.

Can a CDS fully hedge a loan?

Not always. A CDS can offset most of the loss on a credit event, but the protection seller may default. Differences in maturity, currency or the reference obligation create basis risk. The premium also reduces the return.

What do covenants do for credit risk?

Covenants limit borrower actions and require financial ratios to be kept. They lower the chance of default and warn the lender early. A breach gives the lender a reason to renegotiate or call the loan.