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Letter portraitLegal landscapeQuarterYTD

International Bank of Commerce

Brownsville, TX · Cert 25679 · International Bancshares Corp.

State charter, non-member · FDIC · 4 affiliate banks · 41 branches (174 in holding)

Q2 2026

$4.6BAssets
$1.6BLoans
$3.9BDeposits
$579.2MEquity
Loan mix
72%RE $1.1B26%C&I $0.4B1%Consumer $0.0BQ2 2025Q2 2026
Deposit mix
66%Interest-bearing $2.6B34%Noninterest $1.3BQ2 2025Q2 2026

NIM

4.94%Q2 ’244.58%Q2 ’254.31%Q2 ’26-11%-4%

Non-interest income vs. expense

1.59%Q2 ’241.54%Q2 ’251.62%Q2 ’26+12%+23%

Financial Results

Return on Assets (YTD, annualized)

1.73%-42 bps YoY

Net Interest Margin (YTD, annualized)

3.10%-14 bps YoY

Efficiency Ratio (YTD, annualized)

38.52%+317 bps YoY

Tier 1 Leverage Ratio

14.46%+76 bps YoY

Year to date, annualized, through each quarter.

MetricQ2 2025Q3 2025Q4 2025Q1 2026Q2 2026YoY ΔTrend
Return on Assets2.16%2.23%2.18%2.07%1.73%-42 bps
Net Interest Margin3.23%3.25%3.22%3.16%3.10%-14 bps
Non-Interest Burden0.42%0.41%0.40%0.44%0.52%+10 bps
Loan Growth (YoY)15.04%14.22%7.44%1.86%2.73%-1,231 bps
Nonperforming Loans / Loans6.18%6.15%6.16%6.10%9.17%+300 bps
Allowance / Loans1.73%1.73%1.93%1.96%2.50%+77 bps
Tier 1 Leverage Ratio13.71%13.78%14.17%14.53%14.46%+76 bps
Equity / Assets11.59%12.04%12.57%12.55%12.70%+111 bps
Liquid Assets / Assets0.00%0.00%0.00%0.00%0.00%0 bps