Trade Matching

Trade matching is the post-trade process of comparing the details of a transaction as recorded by each of its parties and establishing that they agree. Both sides, or their agents, submit their version of the trade; a system or an operations team compares the key fields; and the trade is marked as matched, or flagged as an exception to be investigated. A matched trade can move on to clearing and settlement with confidence that both parties expect the same thing to happen.

Matching takes place at several points between execution and settlement, and the term is used for each of them. It may refer to the comparison of executed trades between brokers or clearing members, to the agreement of trade details between an investment manager and its broker, or to the comparison of delivery instructions at a securities depository, which is described separately under settlement instruction matching.

The main levels are:

• Street-side matching. Trades between market professionals are compared so that each has a counterparty with the same record. On most electronic exchanges this is automatic: the venue creates both sides of the trade at execution and sends it to the central counterparty as a locked-in trade. In over-the-counter markets, where trades are agreed by phone or message, each dealer reports its side to a matching or confirmation service.
• Client-side matching. An institutional investor's record of an order, after trade allocation to its accounts, is compared with the broker's trade confirmation. Agreement here is called trade affirmation in the United States.
• Settlement-level matching. The delivering and receiving parties' instructions are compared at the central securities depository before settlement is attempted.

Two technical models are used. In local matching, one party sends its details to the other, which compares them with its own records and replies with an acceptance or a rejection. The process is sequential, and a delay by either side holds everything up.

In central matching, both parties send their details independently to a shared utility, which compares them in real time and reports the result to both. Neither has to wait for the other's message before submitting its own, and differences are visible to both sides at once. Central matching is widely used for cross-border institutional securities trades and for derivatives and foreign exchange confirmations, and it is generally regarded as better suited to short settlement cycles.

The fields that must agree depend on the product. For a securities trade they usually include the identities of the two parties and the underlying account, the security, identified by a code such as an ISIN, the direction of the trade, the quantity, the price, the trade date and settlement date, the settlement currency and the net cash amount. Some fields must be identical; others, especially the cash amount, may differ within a small tolerance to allow for rounding of commissions and accrued interest. Settlement details such as the place of settlement and the custodian's account are either matched or added automatically from databases of standing instructions.

A trade that does not match falls into one of a few states. It may be unmatched, meaning the other side's version has been found but one or more fields differ, or alleged, meaning that one party has submitted a trade for which the named counterparty has sent nothing. Common causes are a wrong account or legal entity, a price or quantity keyed incorrectly, a different settlement date, a missing allocation, and a security identified differently by the two firms because of poor security static data.

Operations staff investigate exceptions with the trading desk and the counterparty, then amend or cancel and rebook the trade. The aim is to resolve them on the trade date. Unresolved items lead to settlement failure, extra funding costs and, in the European Union, cash penalties under the Central Securities Depositories Regulation's settlement discipline regime.

Regulators treat early matching as a precondition for safe settlement. International principles for financial market infrastructures expect trades to be confirmed and matched as soon as possible after execution. In the EU, rules made under the Central Securities Depositories Regulation require investment firms to obtain allocations and confirmations from professional clients within set deadlines and require depositories to offer real-time matching. The move to a one-day settlement cycle in North America in May 2024, and the planned move in Europe in October 2027, leave only hours for matching and have pushed firms towards automation.

Firms and infrastructures track the share of trades matched on trade date and the rate of straight-through processing, meaning trades that match without manual work. High rates depend on accurate reference data, consistent identifiers such as the legal entity identifier, and timely input by both sides.

Matching shows only that two records agree. Both parties can share the same mistake, and a matched trade may still fail if securities or cash are not available on the day. Matching also does not replace position and cash reconciliation after settlement, which confirms that what was agreed actually took place.