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Letter portraitLegal landscapeQuarterYTD

Lake Forest Bank & Trust Company, National Association

Lake Forest, IL · Cert 27589 · Wintrust Financial Corp.

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

Q2 2026

$9.3BAssets
$6.9BLoans
$7.1BDeposits
$878.8MEquity
Loan mix
26%RE $1.7B64%C&I $4.1B10%Consumer $0.7BQ2 2025Q2 2026
Deposit mix
76%Interest-bearing $5.4B24%Noninterest $1.7BQ2 2025Q2 2026

NIM

5.76%Q2 ’245.37%Q2 ’255.30%Q2 ’26-7%+1%

Non-interest income vs. expense

2.34%Q2 ’242.21%Q2 ’252.30%Q2 ’26-65%+61%

Financial Results

Return on Assets (YTD, annualized)

1.99%-23 bps YoY

Net Interest Margin (YTD, annualized)

3.24%+4 bps YoY

Efficiency Ratio (YTD, annualized)

42.36%+94 bps YoY

Tier 1 Leverage Ratio

9.93%+41 bps YoY

Year to date, annualized, through each quarter.

MetricQ2 2025Q3 2025Q4 2025Q1 2026Q2 2026YoY ΔTrend
Return on Assets2.21%2.22%2.20%1.74%1.99%-23 bps
Net Interest Margin3.19%3.14%3.06%3.18%3.24%+4 bps
Non-Interest Burden0.06%0.08%0.07%0.22%0.10%+4 bps
Loan Growth (YoY)9.54%8.52%11.03%11.89%6.21%-333 bps
Nonperforming Loans / Loans0.30%0.33%0.35%0.35%0.34%+4 bps
Allowance / Loansn/an/an/an/an/an/an/a
Tier 1 Leverage Ratio9.52%9.19%9.09%9.57%9.93%+41 bps
Equity / Assetsn/an/an/an/an/an/an/a
Liquid Assets / Assets5.91%5.96%5.72%5.84%5.55%-36 bps