iboc_Ex

EXHIBIT 99


Contact:		Judith Wawroski Treasurer
		International Bancshares Corporation
		(956) 722-7611

FOR IMMEDIATE RELEASE:

IBC Reports Exceptional 2017 Earnings

LAREDO, Texas—(BUSINESS WIRE)— February 28, 2018—International Bancshares Corporation (NASDAQ:IBOC), one of the largest independent bank holding companies in Texas, today reported annual net income for 2017 of $157.4 million or $2.36 diluted earnings per common share ($2.38 per share basic) compared to $133.9 million or $2.02 diluted earnings per common share ($2.03 per share basic), which represents a 17.6 percent increase in net income and a 16.8 percent increase in diluted earnings per share over the corresponding period in 2016. Net income for the three months ended December 31, 2017 was $45.2 million or $.68 diluted earnings per common share ($.69 per share basic), compared to $35.5 million or $.53 diluted earnings per common share ($.54 per share basic) for the same period in 2016, representing an increase of 27.3 percent in net income and a 28.3 percent increase in diluted earnings per share.

Net income for the year ended December 31, 2017 was positively impacted by a decrease in the provision for probable loan losses compared to 2016 and a tax refund received in the second quarter of 2017. The provision for probable loan losses decreased as a result of a decrease in the historical loss experience in the commercial category of the allowance for probable loan loss calculation. Net income was also positively impacted by a tax refund of $4.9 million received in the second quarter as a result of an amended tax return for the 2012 tax year. Net income for the year ended December 31, 2017 was negatively impacted by a charge of $5.8 million, $3.7 million after tax, taken by the lead bank subsidiary in connection with the termination of its outstanding long-term repurchase agreements in order to help manage its long-term funding costs, recorded in the first quarter of 2017.

International Bancshares Corporation and Subsidiaries

Consolidated Financial Summary

	Years Ended December 31,
	2017		2016
	(Dollars in thousands, except per share data)

Interest income	$	415,136	$	387,914
Interest expense	(38,931)		(43,129)
Net interest income	376,205		344,785
Provision for probable loan losses	(11,221)		(19,859)
Non-interest income	150,406		161,702
Non-interest expense	(293,748)		(289,625)

Income before income taxes	221,642		197,003
Income taxes	(64,206)		(63,071)
Net income	$	157,436	$	133,932



Net income per common share
Basic	$	2.38	$	2.03
Diluted	$	2.36	$	2.02

“I’m pleased with the Company’s exceptional earnings success for the quarter and year ended December 31, 2017. We have a proven track record of success and continue to achieve earnings that exceed the majority of our peers based on Bank Holding Company Performance Reports compiled by the Federal Financial Institutions Examination Council, and are confident in the strength of our balance sheet and our strong capital position,” said Dennis E. Nixon, President and CEO.

Total assets at December 31, 2017 were $12.2 billion compared to $11.8 billion at December 31, 2016. Total net loans were $6.3 billion at December 31, 2017 compared to $5.9 billion at December 31, 2016. Deposits were $8.5 billion at December 31, 2017 compared to $8.6 billion at December 31, 2016.

IBC is a multi-bank financial holding company headquartered in Laredo, Texas, with 192 facilities and 294 ATMs serving 87 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.