CAIA® Level I: who pays whom in a single-name CDS?

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In a single-name credit default swap, the protection buyer pays a premium to the protection seller for a contingent payment if a specified reference entity experiences a contractually defined credit event. The buyer reduces exposure to that named credit event; the seller accepts it. The premium, event definition, deliverable obligations and settlement method must be read together before the cash flows make sense.

What exactly is being exchanged?

A credit default swap, or CDS, is a derivative tied to credit risk associated with a reference entity, such as a corporation. The buyer makes periodic premium payments while the contract remains in force under its terms. The seller promises a payment or exchange only if the agreed event occurs. The regulatory report on CDS settlement describes the event and settlement terms as matters to settle before trading. The contract's notional measures the size of the exposure used in calculating payments; it is not necessarily an amount exchanged when the contract begins.

The direction of the premium often confuses candidates. A bank concerned about a borrower's default buys protection, so it pays the premium. An investor willing to bear that credit risk sells protection, so it receives the premium while accepting a potential obligation. Owning the reference bond is a separate question: a CDS can create or reduce credit exposure without transferring the loan or bond itself. This helps explain why the derivative market can price credit risk separately from trading the underlying asset.

The distinction from a total return swap matters. A total return swap exchanges the referenced asset's total economic return, including cash income and value changes, against the agreed other leg. A CDS is built around premium payments and a defined credit-event payoff. Credit deterioration can move the market value of a CDS before any event occurs, but an ordinary widening of spreads is not itself a credit-event settlement. The CAIA Level I curriculum companion explicitly lists this contrast, CDS mechanics, mark-to-market value and unwinding as learning objectives. The document is an older curriculum companion used here to identify the concept, not to assert a current exam rule.

A complete illustrative cash-flow path

Consider an invented contract with a notional of £5 million and a premium rate of 1% a year, assumed for simplicity to be paid in equal quarterly instalments. These are teaching numbers, not observed market terms. One year's premium is £50,000. Dividing that by four gives a £12,500 payment each quarter, subject to the simplifying assumption that no accrual adjustment is needed. If there is no qualifying event during the contract's life, the buyer pays the due premiums and receives no credit-event settlement. That is the cost of the protection actually purchased.

Suppose instead that a qualifying event occurs after four complete quarterly payments, and the contract's eligible obligation has a post-event value of 40% of face. Premiums already paid total £50,000 in this simplified example. The loss in value measured against par is 60% of the £5 million notional, or £3 million. Under an assumed cash-settlement arrangement using that value, the seller pays £3 million to the buyer. The buyer keeps any bond it owns; the contract payment and the residual bond value are separate assets. A real contract can include accrued premium, auction mechanics and other terms, so the simplified figure is not a settlement forecast.

Under an assumed physical-settlement arrangement, the buyer instead delivers an eligible £5 million face amount of the affected obligation and receives £5 million in cash from the seller. At the assumed 40% post-event value, those bonds would otherwise be worth £2 million. The economic transfer beyond their market value is £3 million, matching the cash-settlement result under these deliberately matched assumptions. Physical settlement depends on the contract's deliverability rules and the buyer having or obtaining eligible securities. It is wrong to state that the seller pays par while the buyer both retains the bonds and receives a full par payment.

The arithmetic can be checked from the two sides. The buyer's economically valuable component after the event is either £3 million of cash plus £2 million of bonds, or £5 million received for delivered bonds that were worth £2 million. The premiums paid remain a cost in either route. The seller has earned premiums but faces a contingent payment or a par purchase of impaired obligations. Because this is a derivative contract, the protection buyer may still face risk that the seller cannot perform precisely when protection is needed.

The credit event is a contract condition

Do not substitute the everyday word 'default' for the actual trigger. The parties identify a reference entity, covered obligations, one or more credit events and how a determination is made. Bankruptcy or failure to pay may be relevant, but a change in bond price or a widening CDS quote alone does not automatically satisfy the contract. The chosen obligation and seniority can matter to the recoverable value and to what may be delivered. The regulatory report shows why event determination and eligible obligations must be settled through the contract and its protocols.

A hedge also introduces basis risk. The CDS reference and the asset being protected may differ in maturity, seniority, currency or contractual definition. A buyer who holds a loan should not assume that every loss on that loan triggers or equals a CDS payment. The basic exam habit is to map the named reference entity, the event, the obligation used for settlement and the asset the investor actually holds. A claim that the derivative removes every form of risk skips the contract and the counterparty.

Value can move before a credit event

If the market price of protection rises after the buyer locks in a lower premium, the existing contract may gain value for that buyer. If protection becomes cheaper, that position may lose value. The spread move changes the mark-to-market value of remaining contractual cash flows; it is distinct from the contingent settlement triggered by a defined event. The direction is the key first step: a protection buyer benefits from a deterioration in perceived credit quality, all else equal, because similar protection has become more expensive.

A quick invented comparison makes the direction concrete. Suppose a buyer agreed to pay 1% and later a comparable remaining-term contract requires 1.4%. The older protection is relatively attractive, but its value is not simply the 0.4 percentage-point spread difference times the full notional without regard to the remaining payment dates, discounting, survival and other contract terms. A candidate who wants an exact present value needs the assumptions supplied in the problem. The change in quoted spread is a clue to direction, not a licence to invent a valuation input.

An existing position may be terminated with the original counterparty, offset with an opposing new trade or transferred through novation if the necessary parties consent. These are economically different routes. An offsetting trade can reduce market exposure while leaving two live counterparty relationships; it does not erase the original contract merely because the directional exposures oppose one another. A negotiated termination closes the original contract. A novation changes who is party to it. The CAIA learning objectives expect candidates to distinguish the methods rather than use 'unwind' as an unexplained catch-all.

Risks that survive the hedge

The most direct residual risk for a protection buyer is seller non-performance. The seller's own credit quality may weaken at the same time as the reference entity's, especially if both are exposed to a common stress. Contractual collateral can reduce exposure but does not change who ultimately owes the contingent payment. A buyer also faces liquidity and basis risks when it tries to replace, transfer or settle a position. Those risks make the claim 'CDS transfers credit risk' more precise: it transfers a defined exposure subject to contract and counterparty performance.

For the seller, premium income is not a risk-free yield. It is compensation for accepting a potentially large payment if the agreed event happens. The seller must understand the reference credit, contract wording and its own ability to pay under stress. For the buyer, the premium is not the same as a principal repayment. In the no-event case it is a cash outflow with no contingent payment. Neither party should confuse notional with the position's current market value or with cash that changed hands at inception.

A reliable exam reading order

First label the protection buyer and seller. Next draw the premium arrow from buyer to seller and the conditional settlement arrow in the other direction. Identify the reference entity and precise event. Then read how settlement is calculated and which obligations qualify. Only after that should you calculate annual premium, instalments or a post-event payoff. Finally, explain whether the question asks about market value before an event or cash due after an event. That last distinction prevents many otherwise correct calculations from answering the wrong question.

The CAIA programme page provides the broader study context, and the how it works page explains the learning workflow. To test this concept, vary one term of the illustrative contract at a time: change the recovery value, change which obligation can be delivered, or remove the qualifying event. If the arrows and cash amounts still follow from the written terms, the mechanics are understood rather than memorised as a slogan.