Cornerstone State Bank
Montgomery, MN FDIC 21525 $100M-$500M
Quarter Ended
Q2'26
Data as of June 30, 2026
Quarterly Snapshot
Metric Q2'26 YoY Δ Q2'25
Profitability
Return on Assets (%) ▲ 1.49% +1.01 0.48%
Return on Equity (%) ▲ 18.94% +11.53 7.41%
Net Interest Margin (%) ▲ 3.70% +0.75 2.95%
Efficiency Ratio (%) ▲ 61.04% -14.26 75.30%
Pre-Provision Profit ($M) ▲ $1 +0.52 $1
Cost of Funds (%) ▲ 1.46% -0.23 1.69%
Balance Sheet
Total Assets ($M) ▲ $247 +11.55 $235
Gross Loans ($M) ▲ $152 +5.52 $147
Loan Growth YoY (%) ▼ 67.12% -0.90 68.02%
Total Deposits ($M) ▲ $224 +9.95 $214
Shareholders Equity ($M) ▲ $20 +3.67 $16
Tang. Book Value ($M) ▲ $19 +3.72 $16
TBV excl. AOCI ($M)** ▲ $23 +4.18 $19
Loan / Deposit Ratio (%) ▼ 67.12% -0.90 68.02%
Credit Quality
NPA / Total Assets (%) ▼ 0.49% +0.22 0.28%
Allowance / Loans (%) — 1.40% 0.47% 0.93%
Net Charge-Off Ratio (%) ▼ 0.80% +0.36 0.44%
Capital
Tier 1 Capital Ratio (%) — 0.00% 0.00 0.00%
** TBV excl. AOCI adds back unrealised losses on AFS securities to show capital excluding mark-to-market interest rate impact.
8-Quarter Trend
Metric Q3'24 Q4'24 Q1'25 Q2'25 Q3'25 Q4'25 Q1'26 Q2'26
▁▁▃▄▄▄▇█ Net Interest Margin (%) 2.48% 2.56% 2.87% 2.95% 2.99% 3.05% 3.43% 3.70%
▁▂▂▁▃▄▇█ Return on Assets (%) 0.35% 0.55% 0.61% 0.48% 0.72% 0.83% 1.32% 1.49%
█▆▆▆▄▄▁▁ Efficiency Ratio (%) 83.6% 77.8% 77.0% 75.3% 71.8% 70.7% 61.5% 61.0%
█▇▅▄▄▂▁▁ Cost of Funds (%) 1.98% 1.86% 1.75% 1.69% 1.67% 1.54% 1.49% 1.46%
▁██▃▄▄▄▇ NPA / Assets (%) 0.07% 0.56% 0.62% 0.28% 0.28% 0.31% 0.31% 0.49%
▁██▄▄▄▄▇ Net Charge-Off Ratio (%) 0.12% 0.88% 0.96% 0.44% 0.44% 0.48% 0.48% 0.80%
▃▁▂▃▅▇▇█ Tang. Book Value ($M) $15 $14 $15 $16 $17 $19 $18 $19
▁▅▅▃▂▇█▆ Gross Loans ($M) $143 $150 $150 $147 $146 $154 $156 $152
▁▄▃▃▂▆▇█ Total Deposits ($M) $210 $216 $213 $214 $212 $219 $221 $224
Portfolio Composition — Q2'26
Loan Mix%
Real Estate85%
C&I / Commercial5%
Agricultural1%
Consumer7%
Other2%
Deposit Mix%
Nonint.-Bearing Demand14%
Interest-Bearing (core)83%
Brokered / Other3%
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