A settlement obligation is the amount of money or securities a participant in a payment, clearing or settlement arrangement must deliver to discharge its commitments. It may be a single gross payment, the net amount due after offsetting many transactions, or a delivery of securities against payment. Settlement obligations arise once transactions have been cleared, meaning matched, confirmed and calculated, and they are extinguished when settlement is completed.
The idea is central to how financial market infrastructures measure and manage risk. A participant that cannot meet its settlement obligation on time can delay or disrupt settlement for everyone else, so systems limit the size of obligations, require collateral against them and plan for what happens if a participant fails. The obligation should be distinguished from the underlying trade or payment: one trade can create obligations for both cash and securities, and many trades can be combined into one net obligation.
Settlement obligations in plain terms
After a game of cards, each player works out how much they have won or lost. The game itself is over, but nobody has paid yet. The amount each loser must hand over is their settlement obligation, and the game is not truly finished until everyone has paid up.
In finance, the "game" is the day's trading or payments, and working out who owes what is called clearing. Sometimes each debt is paid separately; often the debts are added up so each player pays or receives one net amount. Either way, the settlement obligation is the bill that must be paid, and the system's rules spell out when it is due, how it is paid and what happens if someone cannot pay.
How settlement obligations arise
The form of the obligation depends on how a system settles:
- Gross settlement. In a real-time gross settlement (RTGS) system, each payment is its own obligation and is settled individually as it is processed.
- Bilateral net settlement. Under bilateral netting, each pair of participants ends up with a single amount owed one way.
- Multilateral net settlement. Under multilateral netting, each participant has one net position against the whole system, and the net debits are the obligations due at the end of the cycle, as in a deferred net settlement system.
- Through a central counterparty. When a central counterparty (CCP) steps into trades by novation, each clearing member owes its obligations to the CCP, and the CCP owes obligations to members, rather than members owing each other.
In securities markets, settlement obligations have two legs: delivery of securities by the seller and payment of cash by the buyer. Linking the legs through delivery versus payment (DvP) ensures that one is not completed without the other.
Timing
Each obligation has a due time set by the system's rules or market conventions. For securities, the time between the trade and the date the obligation must be met is the settlement period, such as one business day after trade date for most US securities. For net payment systems, the obligation is usually due at a fixed time in a settlement window. The obligation is discharged only when settlement is final under the rules of the system, not when a payment instruction is sent.
Managing the risk of unmet obligations
If a participant cannot meet its settlement obligation, others may not receive funds or securities they are counting on, and they may in turn fail to meet their own obligations. Systems use several tools to limit this:
- Limits. A credit cap or net debit cap puts a ceiling on how large a participant's obligation can grow.
- Collateral and prefunding. Participants may have to post collateral or prefund their positions, so that obligations are covered even if they fail.
- Mutualised resources. CCPs and some payment systems hold a clearing fund or similar pool contributed by members to cover a defaulter's obligations.
- Default procedures. Default management rules set out how the system will complete settlement, close out positions and allocate any loss if a participant fails.
- Liquidity arrangements. Committed credit lines and central bank access help a system pay out on time even when one obligation is missing.
International standards expect payment systems and CCPs to be able to complete settlement on time even if the participant with the largest obligation fails, and some CCPs must plan for the two largest. This reflects the danger that an unmet obligation in one place can spread liquidity risk through the financial system.
A settlement obligation differs from a payment instruction, which is an order to transfer funds, and from an exposure, which measures what a party could lose if a counterparty fails. When a counterparty defaults before settlement, close-out netting may replace many outstanding obligations with a single net amount. After settlement, obligations are extinguished and no longer appear in risk calculations.