Settlement fail
A settlement fail is a transaction that does not settle on its intended settlement date, because securities or cash are missing or the instructions do not match. Under the Central Securities Depositories Regulation (CSDR), fails in EU CSDs trigger daily cash penalties and reporting, and may lead to a buy-in.
Roles that need it
What it is
A settlement fail, or failed trade, is a trade that has not settled by the end of its intended settlement date. Common causes are a seller without enough securities, a buyer without enough cash, unmatched or late instructions, wrong standard settlement instructions, and problems further up the custody chain, such as a failed onward delivery.
The Central Securities Depositories Regulation (CSDR) calls it a settlement fail when settlement does not take place, or takes place only partially, on the intended date because securities or cash are lacking. The failing party is the participant whose side caused it.
Why it matters
Fails create cost and risk. The counterparty that waits faces a funding gap or a missed onward delivery, and fails can chain from one trade to the next. Under CSDR settlement discipline the CSD calculates a daily cash penalty for each failing instruction, charges it to the failing participant and pays it to the receiving one. Persistent fails must be reported, and buy-ins can be applied in some cases.
Settlement efficiency is also a supervisory topic. ESMA and national authorities publish settlement fail rates by asset class. With the move to a T+1 cycle in October 2027, the time to fix problems before settlement shrinks sharply.
Worked example
Illustrative numbers. A broker sells 5,000 shares at 40 euro, total 200,000 euro, for settlement on Monday. On Monday it holds only 3,000 shares, because a securities loan it expected back has not returned.
If the CSD offers partial settlement, 3,000 shares settle against 120,000 euro and 2,000 remain pending. Suppose the penalty rate for liquid shares is 1 basis point per day of the failing value. The daily penalty on the pending 80,000 euro is 80,000 x 0.0001 = 8 euro. If the fail lasts four business days, the penalty totals 32 euro, plus the cost of the work and of any funding the buyer needs.
The operations team recalls the loan, borrows shares elsewhere, or agrees a partial delivery with the buyer.
Who uses it
Settlements Analysts monitor pending trades, chase counterparties and fix instructions. Custody Operations Analysts manage fails in local markets for clients. Securities Lending and Repo Analysts manage recalls and borrowing to cover short positions. Middle Office Analysts fix trade data at source. Treasury Operations Analysts handle cash shortfalls. Operational Risk Analysts track fail rates and penalty costs as indicators.
Common confusions
A pending trade before its settlement date is unsettled, and it only becomes a fail after the intended settlement date passes. A fail also differs from a trade break: a break is a difference between two records, which may or may not stop settlement. Finally, cash penalties are compensation within the market, separate from any claim the counterparty can make under the trade contract.