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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 $418.1MQ3 2024Q2 2026
Deposit mix
88%Interest-bearing $2.1B12%Noninterest $0.3BQ3 2024Q2 2026

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 1.43%, down 2 bps year over year; NIM at 2.94%.
  • Asset quality: problem loans at 0.18% of loans (+6 bps YoY), with net charge-offs at 0.07%.
  • 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.

Return on Assets (YTD, annualized)

1.43%-2 bps YoY

Net Interest Margin (YTD, annualized)

2.94%-24 bps YoY

Efficiency Ratio (YTD, annualized)

37.25%-427 bps YoY

Tier 1 Leverage Ratio

9.05%-81 bps YoY

NIM

5.54%Q2 ’245.18%Q2 ’254.91%Q2 ’26-6%-8%

Non-interest income vs. expense

1.52%Q2 ’241.43%Q2 ’251.18%Q2 ’26-9%-18%

Year to date, annualized, through each quarter.

MetricQ3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026YoY ΔTrend
Earnings
Return on Assets1.47%1.43%1.36%1.45%1.49%1.47%1.51%1.43%-2 bps
Return on Equity12.65%12.34%11.70%12.61%13.00%12.91%14.07%13.56%+95 bps
Net Interest Margin3.34%3.29%3.18%3.18%3.08%3.05%3.08%2.94%-24 bps
Efficiency Ratio41.18%41.23%44.99%41.52%40.35%39.19%38.12%37.25%-427 bps
Non-Interest Burden1.16%1.14%1.21%1.09%1.02%0.94%0.95%0.89%-20 bps
Growth
Asset Growth (YoY)8.43%10.93%8.40%9.78%12.09%15.98%25.01%20.69%+1,091 bps
Loan Growth (YoY)11.09%12.71%6.75%11.47%10.63%11.94%19.80%14.23%+276 bps
Deposit Growth (YoY)8.24%10.60%7.35%10.12%13.13%16.30%27.14%20.68%+1,056 bps
Asset Quality
Nonperforming Loans / Loans0.18%0.34%0.22%0.12%0.12%0.14%0.11%0.18%+6 bps
Net Charge-Offs / Loans0.10%0.14%0.05%0.03%0.03%0.05%0.06%0.07%+4 bps
Allowance / Loans0.46%0.47%0.48%0.47%0.47%0.50%0.48%0.55%+8 bps
Allowance Coverage of NPLs2.6x1.4x2.1x3.8x3.9x3.6x4.5x3.0x-0.8x
Capital
Tier 1 Leverage Ratio9.86%9.80%10.15%9.85%9.71%9.85%9.37%9.05%-81 bps
Total Risk-Based Capital11.70%11.56%12.02%11.35%11.83%12.02%11.33%11.37%+2 bps
Equity / Assets11.67%11.43%11.89%11.14%11.32%11.17%10.30%10.15%-99 bps
Liquidity & Funding
Loans / Deposits92.73%93.61%93.65%92.70%90.69%90.10%88.24%87.74%-496 bps
Liquid Assets / Assets10.91%8.09%8.35%7.75%9.78%7.85%7.55%8.48%+73 bps
CRE / Total Capitaln/an/an/an/a169.96%168.88%179.11%n/an/a