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Letter portraitLegal landscapeQuarterYTD

State Bank of the Lakes, National Association

Antioch, IL · Cert 5744 · Wintrust Financial Corp.

National charter · OCC · 15 affiliate banks · 10 branches (213 in holding)

Q2 2026

$2.8BAssets
$2.1BLoans
$2.4BDeposits
$285.3MEquity
Loan mix
35%RE $648.9M42%C&I $770.7M23%Consumer $418.1MQ2 2025Q2 2026
Deposit mix
88%Interest-bearing $2.1B12%Noninterest $0.3BQ2 2025Q2 2026

NIM

5.62%Q2 ’245.37%Q2 ’255.10%Q2 ’26-1%-9%

Non-interest income vs. expense

1.55%Q2 ’241.39%Q2 ’251.18%Q2 ’26-17%-13%

Market Position · Chicago-Naperville-Elgin, IL-IN · 2026 SOD (annual) · 0.3% share · #36 of 147 inst. · $2.1B of $630.7B

6.2% Lake
6.3% Kenosha
1.6% McHenry
2.3% Walworth

Executive Summary

  • Earnings: ROA of 1.34%, down 20 bps year over year; NIM at 3.01%.
  • Asset quality: problem loans at 0.18% of loans (+6 bps YoY), with net charge-offs at 0.08%.
  • Capital: tier 1 leverage ratio of 9.05%, down 81 bps from a year ago.
  • Funding: loans stand at 87.74% of deposits as of Q2 2026.

Financial Results

Return on Assets (quarter, annualized)

1.34%-20 bps YoY

Net Interest Margin (quarter, annualized)

3.01%-31 bps YoY

Efficiency Ratio (quarter, annualized)

36.41%-195 bps YoY

Tier 1 Leverage Ratio

9.05%-81 bps YoY

Discrete quarter, annualized.

MetricQ2 2025Q3 2025Q4 2025Q1 2026Q2 2026YoY ΔTrend
Earnings
Return on Assets1.55%1.55%1.42%1.51%1.34%-20 bps
Return on Equity13.47%13.82%12.67%14.07%13.14%-32 bps
Net Interest Margin3.33%3.21%3.20%3.08%3.01%-31 bps
Efficiency Ratio38.36%38.16%36.09%38.12%36.41%-195 bps
Non-Interest Burden1.02%1.00%0.79%0.95%0.89%-13 bps
Growth
Asset Growth (YoY)9.78%12.09%15.98%25.01%20.69%+1,091 bps
Loan Growth (YoY)11.47%10.63%11.94%19.80%14.23%+276 bps
Deposit Growth (YoY)10.12%13.13%16.30%27.14%20.68%+1,056 bps
Asset Quality
Nonperforming Loans / Loans0.12%0.12%0.14%0.11%0.18%+6 bps
Net Charge-Offs / Loans0.01%0.04%0.11%0.06%0.08%+7 bps
Allowance / Loans0.47%0.47%0.50%0.48%0.55%+8 bps
Allowance Coverage of NPLs3.8x3.9x3.6x4.5x3.0x-0.8x
Capital
Tier 1 Leverage Ratio9.85%9.71%9.85%9.37%9.05%-81 bps
Total Risk-Based Capital11.35%11.83%12.02%11.33%11.37%+2 bps
Equity / Assets11.14%11.32%11.17%10.30%10.15%-99 bps
Liquidity & Funding
Loans / Deposits92.70%90.69%90.10%88.24%87.74%-496 bps
Liquid Assets / Assets7.75%9.78%7.85%7.55%8.48%+73 bps
CRE / Total Capitaln/a169.96%168.88%179.11%n/an/a