Three Numbers Every Bank Board Should Know in March 2026
Brian's Banking Blog
Three Numbers Every Bank Board Should Know in March 2026
Every quarter, your board reviews dozens of metrics: loan growth, deposit growth, ROA, ROE, capital ratios, liquidity coverage, loan-to-deposit ratios, nonperforming asset ratios, cost-of-income ratios.
Most of those are backward-looking. They tell you what happened last quarter.
Three numbers tell you what's coming in the next 12–24 months. If these three are healthy, your bank is positioned to thrive. If they're not, your board needs to act now.
Number 1: Your Deposit Beta
What it is: The percentage of rate decreases that you pass back to depositors.
Example: If market rates fall 1%, and you cut your deposit rates by 0.3%, your deposit beta is 30%.
Why it matters: This single metric predicts whether your net interest margin stabilizes or collapses over the next 12 months.
The math:
Assume: - Your bank has $500M in deposits - Market rates fall from 4% to 3% (100 basis points) - Your loan yields are relatively fixed (long-dated mortgages and term loans)
Scenario A (Deposit Beta 30%): - You cut deposit rates by 30bps (from 2.5% to 2.2%) - Your cost of funds falls from 2.5% to 2.2% - Your spread on loans widens slightly - Your margin stabilizes or improves slightly
Scenario B (Deposit Beta 80%): - You cut deposit rates by 80bps (from 2.5% to 1.7%) - Your cost of funds falls from 2.5% to 1.7% - Your spread on loans widens significantly - Your margin improves meaningfully
Scenario C (Deposit Beta 120%): - Depositors leave; you can't cut rates enough to keep them - You're forced to raise new deposits at higher rates - Your cost of funds actually rises when market rates fall - Your margin collapses
What's healthy: Deposit beta of 30–50% for community banks in a declining rate environment. Anything above 70% is dangerous.
How to calculate it: Take your actual deposit rate change over the last quarter, divide by the Fed Funds change, multiply by 100. That's your beta.
Ask your CFO: "What's our deposit beta over the past 12 months? Is it trending worse?" If it's above 70%, you have a deposit problem.
Number 2: Technology Spending as % of Operating Expense
What it is: The percentage of your annual operating budget that goes to tech (software, hardware, salaries for IT/engineering teams, cloud services).
Why it matters: This metric separates banks that can compete in 2027 from banks that can't.
The baseline:
- JPMorgan: ~10–12% of operating expense (massive tech budget, AI investment, fintech partnerships)
- Regional banks ($5B–$20B): 6–8% of operating expense
- Community banks ($200M–$1B): 2–4% of operating expense (below healthy threshold)
Why this matters:
Banks spending less than 3% on tech are making a choice: They're optimizing for cost today and accepting declining competitiveness tomorrow.
Banks spending 5–7% are investing in: - Cloud migration (replacing legacy on-prem systems) - AI/automation (compliance, underwriting, fraud detection) - API-first lending platforms (faster origination, better customer experience) - Data analytics (better credit decisions, deposit management)
What's healthy: 5–7% for community banks under $1B in assets. Anything below 3% is a competitive liability.
The catch: Increasing tech spending is painful short-term (lower earnings, new hires, integration risk). But delaying it is fatal long-term.
Ask your CFO: "What percentage of our operating budget goes to technology? Where does it break down (payroll vs. software vs. cloud)? Is it trending up?" If it's below 3% and not trending up, you're underinvesting.
Number 3: Your Loan-to-Deposit Ratio (LTD)
What it is: Total loans divided by total deposits. A measure of how dependent you are on borrowing to fund your loan portfolio.
Example: If you have $400M in loans and $500M in deposits, your LTD is 80%.
Why it matters: This metric predicts your funding cost and deposit competition vulnerability.
The thresholds:
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LTD 50–75%: Healthy. You're generating more deposits than you need to fund current loans. You have flexibility to grow loans or pay down expensive borrowing.
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LTD 75–95%: Stretched. You're using most of your deposits to fund loans. Any deposit volatility forces you into expensive borrowing. You're exposed to deposit competition.
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LTD 95%+: Dangerous. You're borrowing to fund current lending. If rates rise or deposits flee, your cost of funds spikes. This is how banks get squeezed.
What's healthy: 75–85% for most community banks. This gives you room to grow without over-relying on expensive funding.
What to watch: If your LTD is trending up (80% last quarter, 83% this quarter, 86% next quarter), that's a warning sign. Your deposits aren't growing as fast as your loans. You're drifting toward funding stress.
The COVID distortion: During 2020–2021, deposit inflows were massive. Most community banks saw LTD drop to 60–70%. As deposits normalize, LTD is rising back to 80–90%. This is expected. But watch the trend.
Ask your CFO: "What's our LTD? Where was it 12 months ago? Where do we expect it in 12 months?" If it's above 90% or trending sharply up, you need a deposit retention strategy.
How to Use These Three Numbers
In your next board meeting:
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Deposit Beta: Ask your CFO for deposit beta calculation over the past 4 quarters. Graph it. Is it stable, improving, or deteriorating? If deteriorating, you're losing deposits to competitors. That requires action (better digital experience, bundled services, rate competitiveness).
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Tech Spending %: Ask what you spent on technology last year as a percentage of operating expense. Is it above 4%? If not, propose increasing it to 5–6% over the next 12 months. Calculate the ROI (cost reduction from automation, faster lending from digital).
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LTD Ratio: Track your LTD over 8 quarters. Identify the trend. Are you drifting higher (concerning)? Or stable (healthy)? If drifting higher, map deposit growth strategy (retention, pricing, bundling).
The conversation: "These three metrics tell us if we're positioned for 2027. Let's review them quarterly and adjust strategy based on what they're showing."
Why These Three Matter More Than Others
Traditional metrics like ROA, ROE, and capital ratios measure past performance. They're important for regulators and investors, but they're not predictive.
These three numbers are forward-looking:
- Deposit Beta predicts whether your funding cost will stabilize or spike
- Tech Spending % predicts whether you'll be able to compete on digital experience and operating efficiency in 2027
- LTD Ratio predicts whether you'll have flexibility to grow or will be constrained by deposit dynamics
A bank with healthy deposit beta, rising tech investment, and stable LTD is positioned to thrive in the next rate cycle — whether rates go up or down.
A bank with deteriorating deposit beta, low tech spending, and rising LTD is vulnerable. When the next shock hits (rates spike, economic slowdown, deposit instability), that bank will struggle.
Your Next Action
This week:
- Ask your CFO to calculate deposit beta for the past 4 quarters and graph the trend.
- Pull the percentage of operating expense dedicated to technology.
- Track your LTD ratio for the past 8 quarters.
In your next board meeting:
Present these three numbers. Discuss what they're telling you about your bank's positioning for 2027. Ask: "What's our strategy response to each one?"
If your answers are clear and actionable, you're in good shape.
If you don't have answers, your board just found its Q1 priority.
The bottom line: You don't need dozens of metrics to understand bank health. Three numbers tell you everything you need to know about whether you're positioned to thrive or struggle in the next 24 months.
Know them. Track them. Act on them.