Prepared for Mabrey Bank  /  Deposit Growth

The balance sheet is growing faster than the deposit base.

A $1.99 billion Oklahoma bank with pristine credit, a 3.93% margin, and a core system it just finished upgrading. That gap between assets and funding is the opportunity, and the next lever is primary deposits.
Data. Open Banking. Money Experiences.
The Case in Brief

Strong bank. One lever left unpulled.

Mabrey Bank enters 2026 from a position of real strength. Fiscal 2025 closed with $20.5 million in net income and an annualized return on equity near 17.5%. Credit quality is close to theoretical best: net charge-offs of $24 thousand against a $1.50 billion loan book, with nonperforming loans at 0.05% at year end. Sixteen branches, 237 employees, and a century of Oklahoma banking behind it.

Inside that strength sits one number worth a conversation. In the first quarter of 2026, total assets grew $30.1 million while total deposits declined $43.0 million. The balance sheet expanded and the deposit base did not fund it. Loan-to-deposit finished the quarter at 89.0%, up from the prior quarter, and moving toward the range where every new deposit dollar deploys immediately at the full margin.

That is not a weakness. It is what a bank with genuine loan demand looks like when funding is the scarcer input. Every community bank in the Tulsa and Oklahoma City markets is competing for the same core deposits, and rate is the lever most of them reach for first. There is a second lever, and it is the one that produces deposits that stay.

The core finding

At Mabrey's 3.93% net interest margin, every $100 million in new low-cost core deposits is worth roughly $3.9 million in annual net interest income, close to one fifth of what the bank earned in all of 2025. This page addresses where those deposits come from, and why the paycheck is the place to start.

Where Mabrey Bank Stands

The numbers, from the call report

Mabrey Bancorporation is privately held and files no public earnings release. Every figure below comes from the bank's own regulatory filings for the quarter ended March 31, 2026, or the prior quarter end.
MetricMabrey BankWhat it signals
Total assets3/31/2026$1.99BUp $30.1M (1.5%) in the quarter. The balance sheet is expanding.
Total deposits3/31/2026$1.68BDown $43.0M (2.5%) from 12/31/2025. Funding did not keep pace.
Gross loans and leases3/31/2026$1.50BThe asset side has demand. The question is what funds it.
Loan-to-deposit ratiogross loans / total deposits89.0%Approaching the range where a new deposit dollar deploys at full margin.
Net interest marginannualized from Q1 20263.93%Strong. This is the multiplier on every deposit dollar Mabrey adds.
Efficiency ratioQ1 202658.4%Healthy for a 16-branch community bank. This is not a cost story.
Net charge-offsQ1 2026, annualized0.01%Essentially pristine. Credit is not competing for management attention.
Return on equityQ1 2026, annualized17.5%Top-quartile performance for a bank this size.
Net incomefiscal year 2025$20.5MThe denominator for judging whether a deposit lever is worth pulling.
$30.1M
Asset growth in Q1 2026
−$43.0M
Deposit change in the same quarter
$73.1M
The one-quarter funding gap
The diagnosis

Mabrey is deposit-constrained. It is not credit-constrained: charge-offs round to zero and provisions are not consuming earnings. It is not cost-constrained: the efficiency ratio is in a healthy band and there is no expense story to tell. Funding is the variable that decides how much of the loan demand in front of this bank actually gets served. Held at the Q1 pace, the annual gap approaches $292 million.

The Strategy

One data layer. Four engines. One outcome.

Direct deposit switching is the engine everyone talks about. It is one of four, and none of them work as well alone as they do running off the same enriched data.
What goes in
Mabrey's own data
Checking, debit and credit transactions from the core
Open banking data
Accounts customers connect, inbound and outbound
The MX data layer
Every transaction cleansed, categorized, and resolved to a real merchant identity. This is the foundation all four engines run on.
100%
Transactions
cleansed
95%
Category
coverage
633K+
Merchants
identified
What it powers
01
Capture the paycheck
MX identifies the employer in the transaction stream and maps it to the payroll provider. The punch-out that kills completion disappears.
20% more
Deposit switches with MX intelligence
02
Market with precision
Enriched transactions become audiences. See who pays a mortgage elsewhere, whose income just changed, who started a subscription.
11%
Campaign response at Cadence Bank, against a typical 1%
03
Engage with PFM
Budgets, goals and insights give customers a reason to open the app between paydays. Engagement is what turns an account into a habit.
25% more
Savings deposits over six months
04
Intercept intent
When a customer connects Mabrey to a lender or an exchange, that is a buying signal in real time, and almost no bank acts on it.
3x
More likely to hold a loan account
Primacy
Mabrey becomes the account the paycheck lands in, and the app the customer opens between paydays.
Deposit growth
Core, low-cost, and sticky
Loan growth
Verified, faster to originate
Interchange growth
Card on file, top of wallet
What It Produces

What banks running this actually see

Published MX outcomes, each tied to the engine that produces it. These are results at other institutions, not a forecast of Mabrey's.
20%
More deposit switches
The employer to payroll mapping removes the highest friction step in the switch flow.
Engine 01  /  mx.com
37x
More direct deposit switches
What the full capture motion produces over six months when it runs at scale.
Engine 01  /  mx.com
10x
More deposits
The compounding effect of positioning for the primary relationship rather than a single product.
Primacy  /  mx.com
25%
More savings deposits
Over six months, from customers engaging with money management tools.
Engine 03  /  mx.com
2x
Higher savings balances
Depth inside the customer base Mabrey already has, without adding a household.
Engine 03  /  mx.com
76%
More likely still engaged
A year later, for customers who set up direct deposit in their first 30 days.
Longevity  /  MX study of 10M consumers
$100M × 3.93% = $3.9M / yr
Whatever the mix of engines, the output lands in one place: more core deposits. At Mabrey's own reported margin, every $100 million is roughly $3.9 million in annual net interest income, close to a fifth of fiscal 2025 net income. Replacing the $43.0 million the deposit base gave up in Q1 is worth about $1.7 million a year. Loan and interchange growth build on top of that and are not counted in it.
How to read these numbers

Each figure above is a published outcome at an institution that deployed the corresponding capability, not an average across all clients and not a commitment. The translation to net interest income is an illustrative planning estimate using Mabrey's own reported margin, with one assumption: the volume of deposits gathered. It counts no fee income, no interchange, and none of the loan growth that funding capacity unlocks. The fastest way to sharpen it is to replace that assumption with Mabrey's actual onboarding volume and current direct deposit capture rate.

The Proof

Published outcomes at other institutions

Every figure on this page is drawn from a published MX case study. Each is another institution's result, not a forecast of Mabrey's.
Global Credit Union
Deposit capture
  • 40x projected deposit growth versus the existing solution within the first 72 hours
  • Nearly 9x increase in customer lifetime value over 30 days
  • One week from implementation to launch
Why it maps: this is the direct-deposit switching mechanism itself, and the speed to launch matters for a bank that wants funding on the books this year.
WaFd Bank
Balance depth per relationship
  • Median deposit balance of $6,500 for customers using MX money management tools, versus $1,500 for those who do not
  • 74,000+ customers given access since 2014
  • 5x greater median deposit balances among engaged users
Why it maps: Mabrey's growth does not have to come only from new households. Depth inside the existing base is the other half of the funding answer.
Cadence Bank
Interchange and card on file
  • 11% campaign response rate, against a typical rate near 1%
  • 5,800 customers added their debit card for recurring payments
  • 25,000+ new recurring payments, worth roughly $157,000 in estimated annual recurring interchange
Why it maps: the same transaction intelligence that finds the paycheck finds the recurring bill. This is the interchange lever, sitting on the same data.
MX platform study
Ten million consumers
  • Customers who set up direct deposit in the first 30 days are 76% more likely to still be digitally engaged a year later
  • Connecting an external account: 48% more likely
  • Logging in four or more days in month one: 550% more likely
Why it maps: it quantifies why the paycheck is the right first move. Primacy captured early is primacy retained.
Platform scale

13,000 or more connections with financial institutions and fintechs. More than 170 billion transactions processed, averaging over 150 million a day. 95% category coverage across the platform, with more than 633,000 merchants in the data enhancement layer. In July 2026 MX published that institutions using these capabilities have achieved, on average, 2x growth in deposits and loans.

Where MX Fits

Four views of the customer, one provider

MX is a data furnisher into whatever Mabrey already runs. Nothing here asks the bank to replace its core, its digital banking platform, or its marketing stack.
01   INBOUND
Accounts customers connect to Mabrey
Aggregation and account verification. The employer signal that drives direct deposit switching lives here, alongside the balances a customer holds elsewhere.
02   HELD
Mabrey's own transaction data, enriched
Send checking, debit and credit transactions, get them back with merchant, logo, location and category. Dozens of attributes a core system does not produce, usable in the app and in marketing alike.
03   USER
What customers tell you by using the tools
Budgets, goals, insights and financial wellness. This is the WaFd mechanism: engaged users carry materially higher balances.
04   OUTBOUND
Where customers take Mabrey's data
When a customer connects Mabrey to a lender, an exchange or a competitor, that is the highest-intent buying signal available, and it is one almost no bank is acting on today.
No core replacement
No digital banking platform switch
No marketing stack change
No analytics lock-in
Why the timing works

Mabrey completed a significant upgrade to its core banking system in 2025 and has publicly named enhanced digital banking, investment in new products and technology, and steady, stable growth as its priorities into 2026. The integration window right after a core conversion is the cheapest one a bank ever gets. The data plumbing is already open, the team is already in project mode, and the roadmap for the year is still being written.

MX exists to empower the world to be financially strong, by helping financial institutions turn their data into deposit, loan and interchange growth.

Sources and methodology. Figures described as reported are taken from Mabrey Bank's FFIEC Consolidated Report of Condition and Income (FDIC Certificate 10667) for the quarter ended 3/31/2026 and the quarter ended 12/31/2025, as published by iBanknet, usbanklocations and MonitorBankRates. Derived figures were calculated by MX from those filings: gross loans are net loans plus allowance ($1,481,693K plus $17,143K); loan-to-deposit is gross loans divided by total deposits; net interest margin is Q1 2026 net interest income of $18,552K annualized ($74,208K) divided by average earning assets, using average total assets across 12/31/2025 and 3/31/2026 at a 95.33% earning-asset ratio. Only one figure is assumed: the volume of new low-cost deposits gathered. Every impact figure is that volume multiplied by the 3.93% derived margin. Strategic context is drawn from Mabrey Bank's own published annual materials.

Disclaimer. Mabrey Bank is a privately held Oklahoma state-chartered bank headquartered in Bixby, Oklahoma, FDIC Certificate 10667, owned by Mabrey Bancorporation. It files no public earnings release and is not affiliated with any similarly named public company. The impact figures are illustrative planning estimates prepared by MX, not Mabrey Bank's reported, projected or forecast results, and are not a guarantee of outcome. Peer figures are published client outcomes at other institutions and are not a prediction of Mabrey's results. Call report data for the quarter ended 6/30/2026 was not confirmed as filed at the date of this page; all figures here are as of 3/31/2026 or earlier and should be refreshed once the June quarter is available.

Peer results published at mx.com/case-studies. Prepared July 2026 by Joshua Baker, MX Technologies.