FRM Exam Part I · Exchanges and OTC Markets

OTC Market Size, Structure and Securitization Risks

Q: What is the difference between notional amount and gross market value?

Notional is the reference amount used to compute payments. Gross market value is the sum of the absolute fair values of contracts, a proxy for replacement cost. It is much smaller than notional.

Q: Why is the notional of OTC derivatives so large?

Contracts such as interest rate swaps are written on large reference amounts, and dealers trade many offsetting contracts with each other. Because the notional is not exchanged, it overstates the money at risk.

Q: What do dealers do in OTC markets?

Dealers make markets by quoting prices and taking the other side of client trades. They earn the bid-offer spread and hedge their net positions, often with other dealers.

Q: How did OTC markets contribute to the 2008 crisis?

Opaque bilateral positions, thinly backed credit protection and complex securitized products made losses hard to see. When mortgage values fell, counterparty fear and illiquidity spread the damage across institutions.

Updated 11 October 2026 · Fact-checked

The OTC market is where two parties trade contracts directly, usually through dealers, instead of on an exchange. Its size is quoted as notional amount, which is huge but not the amount at risk, and gross market value, which shows the replacement cost of contracts. Exam questions test which measure fits which purpose, and how OTC opacity and securitization fed the 2007-2008 crisis.

Understand OTC Market Size, Structure, and Securitization Risks

An over-the-counter (OTC) market is a network of dealers and clients who trade bilaterally. Terms are negotiated and can be customized. Exchange trades, by contrast, use standard contracts and a central venue. Most swaps, forwards and many options trade OTC. Interest rate contracts are the largest segment in BIS statistics.

Dealers are large banks that quote prices and take the other side of client trades. They make markets, hold inventory, and hedge their net exposure with other dealers. A dealer earns the bid-offer spread. Because dealers trade with each other heavily, the market is highly interconnected. A failure at one large dealer can pass losses to many counterparties.

There are two ways to measure size. The notional amount is the reference amount on which payments are calculated. In an interest rate swap, the notional is usually never exchanged. It is a scale factor, so it greatly overstates the money actually at risk. The gross market value is the sum of the absolute fair values of all contracts, taking positive and negative values separately. It approximates the cost of replacing contracts at current prices. It is far smaller than notional. Gross credit exposure goes further and nets positions that are legally enforceable, then allows for collateral, so it is smaller still.

For risk analysis, use gross market value or net exposure, not notional. Notional is useful for showing activity and the scale of contracts outstanding. Do not add notional across products and call it risk. Also remember that a swap with a market value near zero at inception can carry a large notional.

In the 2007-2008 crisis, OTC markets and securitization amplified losses. Opaque bilateral positions meant nobody knew who held what. Credit default swaps were written on mortgage-linked securities without enough capital or collateral behind them. Securitized products were complex and relied on ratings, and models underestimated correlation in defaults. When house prices fell, valuations collapsed, counterparties doubted each other, and liquidity vanished. This pushed reforms such as central clearing, trade reporting and higher margin for OTC derivatives.

Key formulas to remember

Notional versus risk: Gross market value (absolute sum of positive and negative fair values) < Notional amount; Notional is a scale for payments, not the amount at risk. Gross market value is the better proxy for replacement cost.
Gross market value: Gross market value = Σ |fair value of each contract|; Positive and negative values are summed as absolute amounts, with no offsetting between counterparties.
Net exposure to a counterparty: Net exposure = max(Σ fair values under an enforceable netting agreement, 0); Netting applies only when legally enforceable. Collateral then reduces the exposure further.
Gross market value ratio: Gross market value ÷ Notional = relative size of replacement cost; A small ratio shows that notional greatly overstates economic exposure.

How to solve OTC Market Size, Structure, and Securitization Risks questions

Use this approach for definition, calculation and crisis-cause questions on OTC markets.

1Identify what is being asked: market size, risk exposure, dealer role, or crisis cause.
2If size is mentioned, decide whether the figure is notional, gross market value or net credit exposure.
3For risk or loss questions, use market value or net exposure, not notional.
4For netting questions, add fair values only within a single legally enforceable netting set, and floor the result at zero.
5For dealer questions, think of market making, bid-offer spread, inventory and interconnection.
6For crisis questions, link the cause to opacity, counterparty risk, thin capital or collateral, model or rating failure, and illiquidity.
7Check that your chosen option does not mix up notional with exposure.

Quickest way: Notional-or-exposure shortcut

When to use it: Use when the question offers numbers or a statement about OTC size and you have little time.

Spot the word notional, gross market value or exposure.
Notional means scale and activity, not loss.
Gross market value means replacement cost with no netting.
Exposure after netting means summing within a netting set, floored at zero.
Eliminate any option that treats notional as the amount that could be lost.

Common mistakes in OTC Market Size, Structure, and Securitization Risks

Treating notional amount as the amount at risk
The notional figures are very large and look like exposures.
Fix: Remember that swap notionals are usually not exchanged. Risk is based on fair value and potential changes in it.
Netting positive and negative values when computing gross market value
Students confuse gross with net.
Fix: Gross market value adds absolute values. Netting belongs to credit exposure and needs an enforceable agreement.
Netting across different counterparties
It seems natural to combine all gains and losses.
Fix: Netting works only within the same counterparty under a legal netting agreement.
Saying dealers eliminate risk by taking client trades
Market making sounds like pure intermediation.
Fix: Dealers hold inventory and hedge, and remain exposed to counterparty, market and liquidity risk. Their interconnection can spread distress.
Blaming the crisis on a single cause such as ratings
Questions often highlight one feature.
Fix: Link several factors: opaque OTC positions, weak collateral, rating and model failure, underestimated correlation and liquidity withdrawal.

Worked examples

Example 1

A dealer has three OTC contracts with one counterparty under an enforceable netting agreement. Fair values are +$12 million, −$5 million and +$3 million. What are the gross market value of the contracts and the net exposure to the counterparty?

Show the solution

Gross market value = |12| + |−5| + |3| = 12 + 5 + 3 = $20 million.
Net fair value = 12 − 5 + 3 = $10 million.
Net exposure = max(10, 0) = $10 million.

Answer: Gross market value is $20 million and net exposure is $10 million.

Example 2

A bank reports interest rate swaps with a notional of $500 billion and a gross market value of $15 billion. What does the gross market value tell you, and what is its ratio to notional?

Show the solution

Gross market value approximates the cost of replacing the contracts at current market prices, without netting.
Ratio = 15 ÷ 500 = 0.03, or 3%.
So the economic value at stake is about 3% of the notional, and notional greatly overstates the potential loss.

Answer: The ratio is 3%. Gross market value is the replacement-cost proxy, and notional overstates risk.

Exam tips

Whenever a question gives a large notional, check whether it is a distractor for exposure.
Read carefully whether the figure is gross or net, and whether netting is enforceable.
Link crisis causes to features: opacity, counterparty risk, thin collateral, rating or model failure and liquidity drying up.
Do the arithmetic in absolute values for gross and signed values for net.

Practice questions from Exchanges and OTC Markets