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Great Plains Bank

Eureka, SD · Cert 505 · Great Plains Bank Corp.

State charter, non-member · FDIC · 3 branches

Q2 2026

$150.4MAssets
$109.6MLoans
$120.6MDeposits
$26.8MEquity
Loan mix
76%RE $46.8M11%C&I $6.9M13%Consumer $8.0MQ3 2024Q2 2026
Deposit mix
86%Interest-bearing $103.2M14%Noninterest $17.4MQ3 2024Q2 2026

Return on Assets (YTD, annualized)

1.50%-137 bps YoY

Net Interest Margin (YTD, annualized)

3.91%-134 bps YoY

Efficiency Ratio (YTD, annualized)

52.71%+1,948 bps YoY

Tier 1 Leverage Ratio

17.69%+52 bps YoY

NIM

5.94%Q2 ’247.02%Q2 ’255.53%Q2 ’26+25%-25%

Non-interest income vs. expense

1.95%Q2 ’241.77%Q2 ’252.10%Q2 ’26-7%+20%

Year to date, annualized, through each quarter.

MetricQ3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026YoY ΔTrend
Return on Assets1.86%1.86%4.07%2.87%2.59%2.27%1.94%1.50%-137 bps
Net Interest Margin4.06%4.03%6.40%5.25%5.10%4.84%4.15%3.91%-134 bps
Non-Interest Burden1.75%1.76%1.25%1.69%1.69%1.85%1.66%2.03%+33 bps
Loan Growth (YoY)5.95%1.95%6.64%2.51%4.16%6.83%3.57%3.84%+133 bps
Nonperforming Loans / Loans1.71%1.24%0.56%1.44%0.07%0.02%0.16%3.49%+205 bps
Allowance / Loans1.62%1.57%1.53%1.57%1.69%1.65%1.66%1.70%+13 bps
Tier 1 Leverage Ratio16.44%16.14%16.86%17.17%17.20%17.42%17.50%17.69%+52 bps
Equity / Assets16.03%15.77%16.81%17.47%17.60%17.01%17.61%17.80%+34 bps
Liquid Assets / Assets6.20%5.91%5.25%5.24%4.66%4.41%4.40%3.99%-125 bps