Security Trust & Savings Bank
Storm Lake, IA FDIC 968 $100M-$500M
Quarter Ended
Q2'26
Data as of June 30, 2026
Quarterly Snapshot
Metric Q2'26 YoY Δ Q2'25
Profitability
Return on Assets (%) ▲ 1.24% +0.28 0.96%
Return on Equity (%) ▲ 13.01% +1.60 11.41%
Net Interest Margin (%) ▲ 2.74% +0.34 2.40%
Efficiency Ratio (%) ▲ 54.08% -3.73 57.80%
Pre-Provision Profit ($M) ▲ $1 +0.15 $1
Cost of Funds (%) ▲ 1.64% -0.50 2.14%
Balance Sheet
Total Assets ($M) ▼ $266 -2.13 $269
Gross Loans ($M) ▲ $80 +2.36 $77
Loan Growth YoY (%) ▲ 32.75% +1.56 31.18%
Total Deposits ($M) ▼ $239 -4.47 $244
Shareholders Equity ($M) ▲ $26 +2.37 $24
Tang. Book Value ($M) ▲ $25 +2.42 $23
TBV excl. AOCI ($M)** ▲ $30 +2.00 $28
Loan / Deposit Ratio (%) ▲ 32.75% +1.56 31.18%
Credit Quality
NPA / Total Assets (%) ▼ 0.23% +0.01 0.22%
Allowance / Loans (%) — 1.70% -0.03% 1.72%
Net Charge-Off Ratio (%) ▼ 0.78% +0.01 0.76%
Capital
Tier 1 Capital Ratio (%) ▲ 31.77% +1.41 30.36%
** TBV excl. AOCI adds back unrealised losses on AFS securities to show capital excluding mark-to-market interest rate impact.
8-Quarter Trend
Metric Q3'24 Q4'24 Q1'25 Q2'25 Q3'25 Q4'25 Q1'26 Q2'26
▁▁▅▆▆▆██ Net Interest Margin (%) 1.81% 1.91% 2.29% 2.40% 2.40% 2.47% 2.63% 2.74%
▁▁▅▆▆▆██ Return on Assets (%) 0.40% 0.48% 0.86% 0.96% 1.00% 1.01% 1.18% 1.24%
█▇▃▂▁▁▁▁ Efficiency Ratio (%) 76.2% 72.1% 60.3% 57.8% 56.3% 56.2% 55.4% 54.1%
█▇▄▅▄▃▁▁ Cost of Funds (%) 2.65% 2.48% 2.06% 2.14% 2.03% 1.87% 1.57% 1.64%
▁▁█▄▂▃▄▅ NPA / Assets (%) 0.20% 0.20% 0.26% 0.22% 0.21% 0.21% 0.22% 0.23%
▂▁█▃▃▁▄▃ Net Charge-Off Ratio (%) 0.73% 0.68% 0.94% 0.76% 0.77% 0.71% 0.79% 0.78%
▄▁▄▅▇███ Tang. Book Value ($M) $22 $20 $22 $23 $24 $25 $25 $25
▁▆▅▃▁█▅▆ Gross Loans ($M) $75 $80 $79 $77 $76 $82 $80 $80
█▄█▂▇▄█▁ Total Deposits ($M) $259 $249 $258 $244 $256 $248 $257 $239
Portfolio Composition — Q2'26
Loan Mix%
Real Estate56%
C&I / Commercial10%
Agricultural31%
Consumer2%
Deposit Mix%
Nonint.-Bearing Demand8%
Interest-Bearing (core)85%
Brokered / Other7%
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