What it means
When a bank fails, somebody must own Monday morning. The purchase and assumption transaction is the FDIC's preferred answer: a healthy institution buys the failed bank's assets and assumes its deposits over the weekend.
Customers wake to a new bank name with balances intact and branches open. The failure becomes an administrative event rather than a personal catastrophe, which is the entire design goal.
The FDIC's Resolutions Handbook describes P&A transactions as the most commonly used resolution method, run through a competitive bidding process among potential acquirers. Bidders price the franchise: deposits are valuable, so healthy banks may pay a premium to assume them, while the FDIC absorbs the gap between the deposits assumed and the questionable assets left behind.
Variants refine the split. In a whole-bank P&A the acquirer takes everything; in other structures the FDIC retains the worst assets, and loss-share agreements can split future loan losses between the agency and the buyer.
The alternative, a payout, means writing cheques to insured depositors and leaving the uninsured to queue, which is slower, costlier, and worse for communities, so P&A dominates whenever a bidder exists. The 2008-2010 crisis exercised the machinery at scale: hundreds of failures moved to acquirers over weekends, often with loss-sharing, at costs far below what depositor payouts would have run.
For a non-finance reader, a purchase and assumption is a controlled handover in the night: the sign changes, the money stays, and almost nobody learns how close the edge was. Speed is the silent hero of the design.
The marketing process begins weeks before closure, while the bank still looks alive to its customers, so the auction completes before fear can spread. Community effects steer the choice too.
Keeping branches open under new ownership preserves local credit relationships that a payout would sever permanently.
In practice
Real-world examples.
Example
A failed bank's depositors wake on Monday as customers of the acquiring bank, balances and branches unchanged. The weekend did the work.
Example
An acquirer pays a deposit premium in a P&A auction, valuing the failed bank's franchise over its troubled assets.
Example
A loss-share agreement splits future loan losses between the FDIC and the acquiring bank on the worst part of the book.
Formula
Calculation
The FDIC chooses the least-cost resolution: the acquirer assumes deposits and buys assets, paying a premium on deposits where the franchise is strong, while the agency funds the shortfall and may share future losses on acquired loans.
Cost of a P&A = deposits assumed - value of assets transferred - premium paid by the acquirer
Worked example. A fictional failed bank holds $500 million of deposits and assets worth an estimated $400 million if sold.
- P&A: an acquirer assumes the $500 million of deposits, takes the $400 million of assets and pays a 1% premium on deposits, which is $5 million. Cost = $500 million - $400 million - $5 million = $95 million.
- Payout: the agency pays out $500 million, recovers $400 million from asset sales and spends $15 million on liquidation. Cost = $500 million - $400 million + $15 million = $115 million.
- The P&A saves $115 million - $95 million = $20 million, before counting the benefit of customers keeping their accounts.Case study
Seen in the real world.
This case study is fictional and illustrative. A made-up regional bank in Georgia fails on a Friday in a stress year, with $4 billion in deposits and a loan book full of troubled construction credits. The FDIC runs an auction through the week, and on Friday evening announces a purchase and assumption: a larger southern bank assumes all deposits and buys $2.6 billion of the assets, paying a 1.2% premium on the deposits, which is $48 million. The structure shows the toolkit's range: the worst $900 million of loans transfer under a loss-share agreement, with the FDIC absorbing 80% of losses above a first threshold, which lets the acquirer bid without fearing the unknown.
Saturday morning, branches open under the new name, ATMs work, and a bakery's payroll clears on schedule; the failure is a news story, not a run. Five years later the FDIC's final accounting shows the loss-share cap was never reached, and the resolution cost ran $600 million below the payout estimate. The case now sits in the agency's training deck beside the lesson its handbook states plainly: continuity is cheapest when a willing buyer can be found before the weekend.
Watch out
Common mistakes.
- Assuming uninsured depositors are always wiped out; in a whole-bank P&A they often transfer fully, unlike in a payout resolution.
- Thinking the acquirer absorbs every loss; asset selection and loss-share agreements routinely leave the worst risk with the agency.
- Believing P&A is improvised; the FDIC markets failing banks confidentially and runs structured auctions well before closure. The auction usually precedes the closure.
Questions
People also ask.
What is a purchase and assumption transaction?
A bank failure resolution where a healthy bank assumes the failed bank's deposits and buys some or all assets, keeping customer access uninterrupted.
Why does the FDIC prefer it?
It is usually the least-cost option: deposit premiums from bidders offset costs, customers face no interruption, and communities keep their banking relationships.
What is a loss-share agreement?
A deal where the FDIC absorbs an agreed share of future losses on acquired loans, encouraging healthy banks to bid on books they cannot fully diligence over a weekend.
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