181 US bank merger & acquisition  deals closed in 2025, with $49B in announced value. 33 more in Q1 2026, worth $15.7B. 31 fintech sponsor-bank migrations happened in the same window.

The banks’ users on the migration side are paying attention in a way they won’t again for years.

These events put two different problems on the table at the same time.

For the business customer, the problem is operational continuity. Income has to keep settling. Payroll has to run on Friday. The vendor portal has to know where to send the money. The customer did not ask for the migration, but they expect their business to keep running through it.

For the bank or the banking platform, the problem looks different: churn risk. A bad experience that turns into a board conversation. Six teams coordinating a conversion window with a deposit book that has to survive the move.

Both problems are real. Most institutions are solving for them defensively. Hold the deposits, contain the disruption, get back to normal as fast as possible.

There is a different way to look at this moment. A leadership team somewhere believed they could offer their new user something the old institution could not: more capability, better service, a better overall experience. The migration is the first proof of whether any of that is real. It is the only moment in the customer's life where every account, every recurring payment, every vendor relationship is being looked at fresh. They are paying attention to where their money lives in a way they will not do again for years. This is the moment they could have “wandering eyes”.

The dollars are already being spent. Compliance work, customer communications, integration planning, the conversion runbook. Right now all of that work is aimed at one job: keeping the lights on through the move. The reframe is to make the same work do two jobs at once. Keep the lights on and use the opportunity to build a deep and trusting relationship through “wowing” your new customer. 

We’ve helped facilitate many migrations and been hands-on with both sides. The thing you don’t appreciate until you have sat through one is how much of the customer's attention goes to questions nobody at the bank is asking. Will payroll clear Friday? Where is my money flowing? What happens if money goes to the account that gets closed? What is the back-up plan for my money? Which vendors got the new routing info and which did not? Is income still flowing into the right account?

The institution is tracking the conversion window. The customer is tracking whether their business runs.

When the path is clean, anxiety is lowered and you have a moment to build lifelong trust with that customer. That relief is the moment the customer decides whether the new institution is the one they actually run their business out of, or just the one holding the deposit. A clean migration is where deeper relationships and higher LTV start.

The Ankura research on Q1 2026 deal flow names this directly. Treasury services attachment is the diligence metric that matters. A Commercial & Industrial book without primary operating accounts behind it is a transactional relationship that walks the moment covenants tighten. The smartest acquirers are pricing operational stickiness into the deal at signing. The next move is pricing in the migration too. A clean migration is a value driver you can underwrite. A bad one is a discount you take after closing.

Getting the migration right starts to compound the math the deal underwrote: deposit retention, primary-relationship percentage, revenue per account. Get it wrong and twelve months later, the deposit book has been held but the customer is still paying their bills out of the old account. The relationship is technically retained. Operationally, it is gone.

The next 24 months are when this gets decided. Ankura's data shows average bank merger & acquisition  close times have dropped from 178 days in 2024 to 140 days in 2025, which means more deals close, faster with smaller integration windows. The fintech sponsor-bank cycle is running parallel and at higher velocity. The institutions that treat migration as the moment to “wow” their customers  are going to look meaningfully different from the ones running migrations like an evacuation drill.

If migration is on your roadmap, whether through mergers & acquisitions or a sponsor bank move, let’s talk.