International Bancshares Corporation (NASDAQ:IBOC), one of the largest independent bank holding companies in Texas, today reported annual net income for 2025 of approximately $412.3 million or $6.62 diluted earnings per common share ($6.63 per share basic) compared to approximately $409.2 million or $6.57 diluted earnings per common share ($6.58 per share basic), which represents an increase of approximately 0.8 percent in diluted earnings per share and 0.8 percent increase in net income over the corresponding period in 2024. Net income for the three months ended December 31, 2025 was approximately $106.9 million or $1.71 diluted earnings per common share ($1.72 per share basic), compared to approximately $115.1 million or $1.85 diluted earnings per common share ($1.85 per share basic) for the same period in 2024, representing a decrease of approximately 7.1 percent in net income and a 7.6 percent decrease in diluted earnings per share.

Net income for 2025 continued to be positively impacted by an increase in interest income earned on our investment and loan portfolios driven primarily by both an increase in the size of our investment and loan portfolios and the current rate environment. Net interest income has been negatively impacted by an increase in interest expense, primarily driven by increases in rates paid on deposits. We continue to closely monitor and adjust rates paid on deposits to remain competitive to grow and retain deposits.

"We are extremely pleased and proud to continue our industry-leading financial results in 2025, which has kept us at the top of the rankings compared to other publicly held bank holding companies in America. As we move into 2026, we will remain focused and vigilant on delivering superior customer service, continued execution of our long-standing practices of balance sheet, asset, liability, and liquidity management, strong cost controls, and evaluating processes for efficiencies across our organization using new AI initiatives. We believe that with continued focus on these established practices we will continue to deliver industry-leading financial results," said Dennis E. Nixon, president and CEO.

Total assets at Dec. 31, 2025 were approximately $16.6 billion compared to approximately $15.7 billion at Dec. 31, 2024. Total net loans were approximately $9.3 billion at Dec. 31, 2025 compared to approximately $8.7 billion at Dec. 31, 2024. Deposits were approximately $12.4 billion at Dec. 31, 2025 compared to approximately $12.1 billion at Dec. 31, 2024.

IBC is a multi-bank financial holding company headquartered in Laredo, Texas, with 165 facilities and 247 ATMs serving 75 communities in Texas and Oklahoma.

"Safe Harbor" statement under the Private Securities Litigation Reform Act of 1995: The statements contained in this release which are not historical facts contain forward looking information with respect to plans, projections or future performance of IBC and its subsidiaries, the occurrence of which involve certain risks and uncertainties detailed in IBC's filings with the Securities and Exchange Commission.

Copies of IBC's SEC filings and Annual Report (as an exhibit to the 10-K) may be downloaded from the SEC filings site located at http://www.sec.gov/edgar.shtml.

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Judith I. Wawroski,

Treasurer and Chief Financial Officer

International Bancshares Corporation

(956) 722-7611

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