Trade Affirmation

Trade affirmation is the post-trade step in which an institutional investor, or a custodian acting for it, confirms that the details of a securities trade reported by the executing broker agree with its own records. Once a trade is affirmed, both sides have accepted the same economic and settlement details, and the trade can be sent for settlement without further manual checking. An unaffirmed trade can still settle, but it is more likely to fail or to need intervention.

Affirmation belongs to the institutional side of the market, where an asset manager places orders through a broker and settles through a custodian bank. It follows trade allocation and trade confirmation and is the last agreement step before the securities settlement instruction is processed at the depository. The term is used above all in the United States; in Europe the same outcome is usually described as matching.

The sequence begins after an order is executed. The investment manager tells the broker how the executed quantity is to be divided among its client accounts. For each account the broker issues a confirmation setting out the security, quantity, price, commission, fees, net money, trade date and settlement date, together with the settlement details of both sides. The manager, or the custodian or prime broker it has appointed as affirming party, compares the confirmation with its own record of the trade. If everything agrees, it affirms; if not, it rejects the confirmation or raises the difference with the broker, who cancels and corrects.

In the US market this exchange runs through the institutional trade processing services of the Depository Trust & Clearing Corporation (DTCC). An affirmed confirmation can be passed automatically to the Depository Trust Company for settlement, so that no separate delivery instruction is needed from either side. This link between affirmation and settlement is the reason the affirmation rate is treated as a leading indicator of settlement efficiency.

Firms reach affirmed status in several ways:

• Manager affirmation. The investment manager reviews and affirms each confirmation itself.
• Custodian or prime broker affirmation. The manager sends trade details to its custodian, which affirms on its behalf when the broker's confirmation agrees with them.
• Central matching. Both the broker and the manager submit their versions of the trade to a matching utility. When the fields agree within set tolerances, the trade is treated as matched and affirmed automatically, without a separate review step. This is a form of trade matching and is the most automated route.

All models depend on accurate reference data, in particular standing settlement instructions, account identifiers and security identifiers. Many affirmation failures trace back to missing or outdated settlement details and not to disagreement about price or quantity.

The time available for affirmation is set by the settlement cycle. When the United States, Canada and Mexico moved from two-day to one-day settlement (T+1) at the end of May 2024, the steps that used to spread over the day after the trade had to be completed on the trade date itself. To be included in the depository's overnight processing, a trade now has to be affirmed by 9:00 p.m. Eastern Time on trade date.

The Securities and Exchange Commission supported the change with a rule requiring broker-dealers to have agreements or written policies designed to ensure that allocations, confirmations and affirmations are completed as soon as technologically practicable and no later than the end of trade date, and with record-keeping duties for investment advisers. Industry affirmation rates by the evening cut-off rose substantially around the transition. The change was harder for investors outside the Americas, whose working day ends before US markets close, and many moved staff, outsourced the task to custodians or adopted central matching.

The European Union, the United Kingdom and Switzerland plan to move to T+1 in October 2027, and their preparations have again focused on same-day allocation and confirmation.

Affirmation is a control as well as a processing step. It catches errors in price, quantity, account or settlement details while there is still time to correct them, which reduces settlement failure and the cost of settlement fail management. Trades that fail tie up securities and cash, may incur penalties in markets with a settlement discipline regime, and expose each party to the other's default for longer, a form of counterparty risk.

Operations teams monitor the proportion of trades affirmed by the cut-off, the age of unaffirmed items and the causes of rejection, and report them as measures of investment operations quality.

Affirmation confirms that two parties agree, not that the trade will settle. A fully affirmed trade can still fail if the seller does not hold the securities or the buyer lacks funds. The process is also specific to institutional business settled delivery versus payment; trades executed on an exchange between clearing members are generally locked in at execution and need no affirmation. Practices differ between countries, so firms active in several markets must maintain more than one workflow.

• DTCC (Depository Trust & Clearing Corporation)
• U.S. Securities and Exchange Commission