NSB Bank
Mason City, IA FDIC 8094 $100M-$500M
Quarter Ended
Q2'26
Data as of June 30, 2026
Quarterly Snapshot
Metric Q2'26 YoY Δ Q2'25
Profitability
Return on Assets (%) ▼ 0.92% -0.25 1.17%
Return on Equity (%) ▼ 11.27% -4.68 15.95%
Net Interest Margin (%) ▲ 3.08% +0.34 2.73%
Efficiency Ratio (%) ▲ 54.16% -3.51 57.67%
Pre-Provision Profit ($M) ▲ $2 +0.39 $1
Cost of Funds (%) ▲ 2.00% -0.19 2.18%
Balance Sheet
Total Assets ($M) ▼ $461 -9.70 $471
Gross Loans ($M) ▼ $334 -3.94 $338
Loan Growth YoY (%) ▼ 82.36% -0.08 82.43%
Total Deposits ($M) ▼ $401 -4.64 $405
Shareholders Equity ($M) ▲ $39 +3.29 $36
Tang. Book Value ($M) ▲ $33 +3.29 $30
TBV excl. AOCI ($M)** ▲ $38 +2.58 $35
Loan / Deposit Ratio (%) ▼ 82.36% -0.08 82.43%
Credit Quality
NPA / Total Assets (%) ▼ 0.49% +0.03 0.46%
Allowance / Loans (%) — 1.13% 0.07% 1.06%
Net Charge-Off Ratio (%) ▲ 0.32% -0.32 0.64%
Capital
Tier 1 Capital Ratio (%) ▲ 10.94% +0.23 10.71%
Noninterest income ($0.55M) is materially above the typical range relative to net interest income. This may include one-time items. Efficiency ratio may not reflect recurring earnings power.
** TBV excl. AOCI adds back unrealised losses on AFS securities to show capital excluding mark-to-market interest rate impact.
8-Quarter Trend
Metric Q3'24 Q4'24 Q1'25 Q2'25 Q3'25 Q4'25 Q1'26 Q2'26
▁▁▃▃▄▅▇█ Net Interest Margin (%) 2.61% 2.62% 2.75% 2.73% 2.83% 2.89% 3.00% 3.08%
▄▄█▇█▇▁▂ Return on Assets (%) 1.01% 1.01% 1.28% 1.17% 1.26% 1.22% 0.81% 0.92%
██▃▅▃▄▁▂ Efficiency Ratio (%) 62.0% 62.1% 55.6% 57.7% 55.4% 56.2% 52.3% 54.2%
▇█▄▄▃▂▁▂ Cost of Funds (%) 2.34% 2.47% 2.17% 2.18% 2.06% 2.02% 1.90% 2.00%
▁▁▇██▅██ NPA / Assets (%) 0.06% 0.06% 0.40% 0.46% 0.49% 0.31% 0.47% 0.49%
▁▁▇██▅█▄ Net Charge-Off Ratio (%) 0.09% 0.08% 0.56% 0.64% 0.69% 0.43% 0.67% 0.32%
▃▁▃▄▇█▇█ Tang. Book Value ($M) $29 $27 $29 $30 $33 $33 $32 $33
▁▃▁▅▂█▆▃ Gross Loans ($M) $329 $334 $331 $338 $333 $345 $340 $334
▃▁▄▄▃▂█▂ Total Deposits ($M) $402 $396 $405 $405 $402 $400 $415 $401
Portfolio Composition — Q2'26
Loan Mix%
Real Estate62%
C&I / Commercial18%
Agricultural17%
Consumer2%
Other1%
Deposit Mix%
Nonint.-Bearing Demand19%
Interest-Bearing (core)77%
Brokered / Other4%
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