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First Security Bank

Byron, MN · Cert 9728 · Olmsted Bcorp Inc.

State charter, non-member · FDIC · 1 branch

Q2 2026

$161.7MAssets
$121.6MLoans
$121.6MDeposits
$11.4MEquity
Loan mix
90%RE $107.1M7%C&I $8.5M3%Consumer $3.4MQ2 2025Q2 2026
Deposit mix
77%Interest-bearing $94.1M23%Noninterest $27.5MQ2 2025Q2 2026

NIM

5.78%Q2 ’245.94%Q2 ’255.89%Q2 ’26+4%+6%

Non-interest income vs. expense

2.03%Q2 ’241.95%Q2 ’251.99%Q2 ’26-4%+1%

Financial Results

Return on Assets (YTD, annualized)

0.83%-14 bps YoY

Net Interest Margin (YTD, annualized)

3.35%+18 bps YoY

Efficiency Ratio (YTD, annualized)

55.75%-206 bps YoY

Tier 1 Leverage Ratio

7.93%+16 bps YoY

Year to date, annualized, through each quarter.

MetricQ2 2025Q3 2025Q4 2025Q1 2026Q2 2026YoY ΔTrend
Return on Assets0.96%0.98%0.99%0.26%0.83%-14 bps
Net Interest Margin3.17%3.19%3.21%3.19%3.35%+18 bps
Non-Interest Burden1.75%1.75%1.77%1.86%1.77%+2 bps
Loan Growth (YoY)17.10%8.92%6.10%8.17%2.78%-1,432 bps
Nonperforming Loans / Loans0.24%0.16%0.16%2.64%2.63%+239 bps
Allowance / Loans1.08%1.11%1.12%1.40%1.37%+29 bps
Tier 1 Leverage Ratio7.77%7.89%7.93%7.69%7.93%+16 bps
Equity / Assets6.67%7.22%7.23%6.86%7.03%+37 bps
Liquid Assets / Assets4.21%3.04%2.80%3.33%3.58%-64 bps