The Merger Metric That Predicts Franchise Value

Bank mergers are often evaluated through familiar measures: credit quality, cost savings, market expansion, regulatory approval and deposit retention.

But those metrics don’t always answer a more practical question: What happens when customers actually have to live through the transition?

One commercial customer of a recently acquired community bank described the experience this way, “The merger itself wasn’t the issue. The disruption that followed was.”

The company had no plans to change banks. Then the account transition began. Treasury users required new credentials. Payment instructions had to be updated. Employees spent hours verifying direct deposits, recurring payments and vendor transactions. Questions emerged about payroll processing, incoming payment routing and whether critical treasury workflows would continue uninterrupted.

No single issue caused the relationship to fail. But within a year, the company moved its primary operating relationship elsewhere. From the acquiring bank’s perspective, the transaction appeared successful. From the customer’s perspective, banking had become more difficult.

A technically successful integration does not always translate into a stronger franchise.

Not All Churn Is Created Equal
Banks expect some level of customer attrition following an acquisition. The more important question is how much of that attrition is avoidable.

According to Curinos M&A benchmark data, average consumer deposit attrition following large-bank acquisitions exceeds 11% during the months immediately following conversion. Top-performing acquirers have limited attrition to less than 5%, while bottom-performing institutions have experienced attrition exceeding 17%.

In many ways, acquisition success comes down to preserving relationship continuity. When customers can continue normal operations without disruption, institutions are more likely to maintain primacy and realize the full value anticipated in the transaction.

For commercial customers, the loss of a primary operating account often extends beyond deposits. Treasury services, payment activity, lending relationships and future growth opportunities may follow.

Historically, boards have relied on deposit retention as a proxy for integration success. The more important question may be whether the institution retained primacy.

Where Relationship Continuity Breaks Down
One overlooked source of avoidable churn occurs when acquired and acquiring institutions maintain overlapping account structures. To accommodate duplicate or conflicting account identifiers, account numbers often must be changed during the conversion process. While this may appear to be a routine operational issue for the bank, the customer impact can be significant.

A new account number often requires updates to payroll providers, automated clearing house (ACH) transactions, accounts payable and accounts receivable processes, treasury management workflows, vendor payment instructions and recurring payment relationships.

For a business customer, the account number itself is rarely the issue. The challenge is everything connected to it. What appears to be a routine operational decision for the bank can create substantial administrative work for the customer.

When those connections are not identified and transitioned effectively, businesses may face missed payments, delayed deposits, reconciliation challenges and operational disruptions. Customers evaluate a merger based on whether they can continue running their business without interruption.

Relationship Continuity as a Strategic Asset
Most banks devote significant attention to due diligence, integration planning and synergy realization before an acquisition closes. Relationship and operational continuity deserve similar consideration.

Increasingly, leading acquirers are evaluating how to identify recurring payment relationships, treasury workflows, direct deposits and other operational dependencies before conversion occurs. The goal is not simply to migrate accounts. It is to preserve the customer’s ability to operate without interruption.

Banks that can consistently preserve relationship continuity through periods of change may be better positioned to protect franchise value and realize the full economics of a transaction.

Three Questions Every Board Should Ask
As acquisition activity continues, directors should consider adding three questions to integration oversight discussions:

1. How is avoidable churn being measured? Deposit retention is important, but it does not always reveal whether customers are shifting operating activity elsewhere.
2. Which customer segments create the greatest continuity risk? Commercial customers with treasury services, payroll activity and complex payment relationships often face the greatest disruption during account transitions.
3. Does the customer experience support the acquisition thesis? Every acquisition is built on a promise of greater value. If customers experience confusion, payment disruptions or unnecessary work, the institution risks undermining the rationale behind the transaction.

The New Merger Metric: Relationship Primacy
Deposits alone do not reveal whether the institution retained the customer’s primary banking relationship. A commercial customer may leave deposits in place while gradually shifting treasury services, payment activity, lending relationships and future growth opportunities elsewhere.

For banks seeking to maximize acquisition value, the question is whether relationship continuity was preserved and whether the institution remained primary.