10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

xQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2010

OR

oTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from              to              

Commission file number  000-09439

INTERNATIONAL BANCSHARES CORPORATION

(Exact name of registrant as specified in its charter)

Texas	74-2157138
(State or other jurisdiction of	(I.R.S. Employer Identification No.)
incorporation or organization)

1200 San Bernardo Avenue, Laredo, Texas 78042-1359

(Address of principal executive offices)

(Zip Code)

(956) 722-7611

(Registrant’s telephone number, including area code)

None

(Former name, former address and former fiscal year, if changed since last report)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.   Yes x   No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).   Yes x   No o

Indicate by check mark if the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company.  See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer x	Accelerated filer o
Non-accelerated filer o	Smaller reporting company o
(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).   Yes o   No x

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date

Class	Shares Issued and Outstanding
Common Stock, $1.00 par value	67,706,217 shares outstanding at October 25, 2010

PART I - FINANCIAL INFORMATION

Item 1. Financial Statements

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES

Consolidated Statements of Condition (Unaudited)

(Dollars in Thousands)

	September 30,			December 31,
	2010			2009
Assets
Cash and due from banks	$	213,884		$	224,638
Total cash and cash equivalents	213,884			224,638
Investment securities:
Held-to-maturity (Market value of $2,450 on September 30, 2010 and $2,450 on December 31, 2009)	2,450			2,450
Available-for-sale (Amortized cost of $5,056,817 on September 30, 2010 and $4,541,851 on December 31, 2009)	5,164,175			4,644,083
Total investment securities	5,166,625			4,646,533
Loans, net of unearned discounts	5,497,420			5,667,262
Less allowance for probable loan losses	(82,850		)	(95,393		)
Net loans	5,414,570			5,571,869
Bank premises and equipment, net	473,205			490,375
Accrued interest receivable	35,497			41,731
Other investments	342,713			359,404
Identified intangible assets, net	18,553			22,358
Goodwill, net	282,532			282,532
Other assets	166,819			123,103
Total assets	$	12,114,398		$	11,762,543

1

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES

Consolidated Statements of Condition, continued (Unaudited)

(Dollars in Thousands)

	September 30,			December 31,
	2010			2009
Liabilities and Shareholders’ Equity
Liabilities:
Deposits:
Demand — non-interest bearing	$	1,572,539		$	1,516,799
Savings and interest bearing demand	2,466,496			2,262,552
Time	3,423,177			3,398,656
Total deposits	7,462,212			7,178,007
Securities sold under repurchase agreements	1,478,100			1,441,817
Other borrowed funds	922,300			1,347,625
Junior subordinated deferrable interest debentures	201,109			201,082
Other liabilities	578,401			186,542
Total liabilities	10,642,122			10,355,073
Commitments, Contingent Liabilities and Other Tax Matters (Note 10)
Shareholders’ equity:
Series A Cumulative perpetual preferred shares, $.01 par value, $1,000 per share liquidation value. Authorized 25,000,000 shares; issued 216,000 shares on September 30, 2010, net of discount of $8,527 and issued 216,000 shares on December 31, 2009, net of discount of $10,258	207,473			205,742
Common shares of $1.00 par value. Authorized 275,000,000 shares; issued 95,711,260 shares on September 30, 2010 and 95,711,111 shares on December 31, 2009	95,711			95,711
Surplus	162,173			161,258
Retained earnings	1,187,617			1,122,290
Accumulated other comprehensive income	69,204			65,878
	1,722,178			1,650,879
Less cost of shares in treasury, 27,989,443 shares on September 30, 2010 and 27,607,171 shares on December 31, 2009	(249,902		)	(243,409		)
Total shareholders’ equity	1,472,276			1,407,470
Total liabilities and shareholders’ equity	$	12,114,398		$	11,762,543

See accompanying notes to consolidated financial statements.

2

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES

Consolidated Statements of Income (Unaudited)

(Dollars in Thousands, except per share data)

	Three Months EndedSeptember 30,				Nine Months EndedSeptember 30,
	2010		2009		2010		2009
Interest income:
Loans, including fees	$	77,037	$	84,263	$	236,417	$	252,105
Investment securities:
Taxable	33,665		40,937		103,346		145,074
Tax-exempt	1,897		1,375		5,314		3,454
Other interest income	1,656		129		2,081		465
Total interest income	114,255		126,704		347,158		401,098
Interest expense:
Savings deposits	2,210		2,563		7,101		8,182
Time deposits	11,298		14,757		37,173		48,650
Securities sold under repurchase agreements	11,005		11,110		33,292		33,622
Other borrowings	317		732		757		9,041
Junior subordinated interest deferrable debentures	3,072		3,095		9,149		9,483
Total interest expense	27,902		32,257		87,472		108,978
Net interest income	86,353		94,447		259,686		292,120
Provision for probable loan losses	6,837		10,346		15,495		45,429
Net interest income after provision for probable loan losses	79,516		84,101		244,191		246,691
Non-interest income:
Service charges on deposit accounts	25,613		25,425		74,847		73,753
Other service charges, commissions and fees
Banking	11,787		10,513		35,574		31,781
Non-banking	2,607		5,485		6,130		9,203
Gain on investment securities transactions, net	13		174		30,850		11,880
Other investments, net	4,710		3,374		12,183		10,609
Other income	2,159		5,904		8,302		11,853
Total non-interest income	46,889		50,875		167,886		149,079

3

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES

Consolidated Statements of Income, continued (Unaudited)

(Dollars in Thousands, except per share data)

	Three Months EndedSeptember 30,				Nine Months EndedSeptember 30,
	2010		2009		2010		2009
Non-interest expense:
Employee compensation and benefits	$	32,379	$	35,316	$	96,541	$	99,796
Occupancy	9,347		8,723		26,589		25,899
Depreciation of bank premises and equipment	8,770		8,965		26,751		26,979
Professional fees	4,291		3,207		12,054		9,081
Deposit insurance assessments	2,475		1,751		7,687		7,654
Stationery and supplies	952		1,109		2,842		2,925
Amortization of identified intangible assets	1,321		1,320		3,946		3,950
Advertising	2,480		2,647		7,547		7,887
Litigation expense	34		—		21,837		—
Impairment charges (Total other-than-temporary impairment charges, $(55) less gain of ($586) and $3,989 less gain of ($4,003) included in other comprehensive income)	531		—		7,992		—
Other	16,799		15,708		50,636		49,982
Total non-interest expense	79,379		78,746		264,422		234,153
Income before income taxes	47,026		56,230		147,655		161,617
Provision for income taxes	13,477		19,257		48,052		55,983
Net income	$	33,549	$	36,973	$	99,603	$	105,634
Preferred Stock Dividends	3,286		3,250		9,831		9,725
Net income available to common shareholders	$	30,263	$	33,723	$	89,772	$	95,909
Basic earnings per common share:
Weighted average number of shares outstanding:	67,822,455		68,192,647		67,995,734		68,437,023
Net income	$	.45	$	.49	$	1.32	$	1.40
Fully diluted earnings per common share:
Weighted average number of shares outstanding:	67,880,694		68,207,682		68,082,452		68,447,067
Net income	$	.45	$	.49	$	1.32	$	1.40

See accompanying notes to consolidated financial statements.

4

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES

Consolidated Statements of Comprehensive Income (Unaudited)

(Dollars in Thousands)

	Three Months EndedSeptember 30,						Nine Months EndedSeptember 30,
	2010			2009			2010			2009
Net income	$	33,549		$	36,973		$	99,603		$	105,634
Other comprehensive income, net of tax
Net unrealized holding gains (losses)on securities available for sale arising during period (tax effects of $45, $(431), $9,791 and $25,293)	84			(801		)	18,183			46,972
Reclassification adjustment for gains on securities available for sale included in net income (tax effects of $(5), $(61), $(10,798) and $(4,158))	(8		)	(113		)	(20,052		)	(7,722		)
Reclassification adjustment for impairment charges on available for sale securities included in net income (tax effects of $186, $0, $2,797 and $0)	345			—			5,195			—
Comprehensive income	$	33,970		$	36,059		$	102,929		$	144,884

See accompanying notes to consolidated financial statements.

5

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES

Consolidated Statements of Cash Flows (Unaudited)

(Dollars in Thousands)

	Nine Months EndedSeptember 30,
	2010			2009
Operating activities:
Net income	$	99,603		$	105,634
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for probable loan losses	15,495			45,429
Accretion of time deposit discounts	(11		)	(10		)
Depreciation of bank premises and equipment	26,751			26,979
Gain on sale of bank premises and equipment	(192		)	(133		)
Depreciation and amortization of leased assets	—			300
Accretion of investment securities discounts	(1,284		)	(1,463		)
Amortization of investment securities premiums	7,906			4,768
Investment securities transactions, net	(30,850		)	(11,880		)
Impairment charges on available-for-sale investment securities	7,992			—
Amortization of junior subordinated debenture discounts	27			26
Amortization of identified intangible assets	3,946			3,950
Stock based compensation expense	431			502
Earnings from affiliates and other investments	(10,940		)	(9,778		)
Deferred tax expense	(11,355		)	(7,811		)
Decrease in accrued interest receivable	6,234			7,631
Net increase in other assets	(43,857		)	(24,854		)
Net decrease in other liabilities	(63,950		)	(72,972		)
Net cash provided by operating activities	5,946			66,318
Investing activities:
Proceeds from maturities of securities	1,924			1,637
Proceeds from sales and calls of available for sale securities	1,068,184			571,814
Purchases of available for sale securities	(1,855,638		)	(419,614		)
Principal collected on mortgage-backed securities	737,947			944,989
Maturities of time deposits with banks	—			396
Net decrease in loans	141,804			101,911
Purchases of other investments	(2,239		)	(10,425		)
Distributions of other investments	29,870			53,295
Purchases of bank premises and equipment	(11,243		)	(52,485		)
Proceeds from sale of bank premises and equipment	1,854			628
Net cash provided by investing activities	112,463			1,192,146

6

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES

Consolidated Statements of Cash Flows, continued (Unaudited)

(Dollars in Thousands)

	Nine Months EndedSeptember 30,
	2010			2009
Financing activities:
Net increase (decrease) in non-interest bearing demand deposits	$	55,740		$	(11,190	)
Net increase in savings and interest bearing demand deposits	203,944			48,465
Net increase in time deposits	24,532			16,183
Net increase in securities sold under repurchase agreements	36,283			59,099
Net decrease in other borrowed funds	(425,325		)	(1,394,411		)
Purchase of treasury stock	(6,493		)	(6,722		)
Proceeds from stock transactions	484			2,359
Payment of dividends on common stock	(11,578		)	(11,662		)
Payments of dividends on preferred stock	(6,750		)	(6,960		)
Net cash used in financing activities	(129,163		)	(1,304,839		)
Decrease in cash and cash equivalents	(10,754		)	(46,375		)
Cash and cash equivalents at beginning of period	224,638			298,720
Cash and cash equivalents at end of period	$	213,884		$	252,345
Supplemental cash flow information:
Interest paid	$	88,561		$	114,805
Income taxes paid	55,234			56,918
Accrued dividends, preferred shares	1,350			1,350
Dividends declared, not yet paid on common stock	12,867			—
Sales of available-for-sale securities not yet settled	—			1,282
Purchases of available-for-sale securities not yet settled	451,148			464,760

See accompanying notes to consolidated financial statements.

7

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(Unaudited)

Note 1 - Basis of Presentation

The accounting and reporting policies of International Bancshares Corporation (“Corporation”) and Subsidiaries (the Corporation and Subsidiaries collectively referred to herein as the “Company”) conform to accounting principles generally accepted in the United States of America and to general practices within the banking industry.  The consolidated financial statements include the accounts of the Corporation and its wholly-owned subsidiaries, International Bank of Commerce, Laredo (“IBC”), Commerce Bank, International Bank of Commerce, Zapata, International Bank of Commerce, Brownsville and the Corporation’s wholly-owned non-bank subsidiaries, IBC Subsidiary Corporation, IBC Life Insurance Company, IBC Trading Company, IBC Capital Corporation and Premier Tierra Holdings, Inc.  All significant inter-company balances and transactions have been eliminated in consolidation.  The consolidated financial statements are unaudited, but include all adjustments, which, in the opinion of management, are necessary for a fair presentation of the results of the periods presented.  All such adjustments were of a normal and recurring nature.  It is suggested that these financial statements be read in conjunction with the financial statements and the notes thereto in the Company’s latest Annual Report on Form 10-K.  The consolidated statement of condition at December 31, 2009 has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements.  Certain reclassifications have been made to make prior periods comparable.

The Company operates as one segment.  The operating information used by the Company’s chief executive officer for purposes of assessing performance and making operating decisions about the Company is the consolidated statements presented in this report.  The Company has four active operating subsidiaries, namely, the bank subsidiaries, otherwise known as International Bank of Commerce, Laredo, Commerce Bank, International Bank of Commerce, Zapata and International Bank of Commerce, Brownsville.  The Company applies the provisions of Financial Accounting Standards Board (“FASB”) Accounting Statement Codification (“ASC”), FASB ASC 280, “Segment Reporting”, in determining its reportable segments and related disclosures.

On July 1, 2009, the Financial Accounting Standards Board officially launched the “FASB Accounting Standards Codification,” (“Codification”), which is now the single official source of authoritative, non-governmental U.S. GAAP, in addition to guidance issued by the Securities and Exchange Commission (“SEC”).  The Codification supersedes all prior accounting literature.  With the launch of the Codification, U.S. GAAP now consists of two levels — authoritative (Codification) and non-authoritative (anything not in the Codification).  The Codification is effective for interim and annual periods ending after September 15, 2009, and is organized into approximately 90 accounting topics.  The FASB will no longer be issuing accounting standards in the form of Statements, Staff Positions or Emerging Issues Task Force Abstracts.  The FASB will instead amend the Codification by issuing “Accounting Standards Updates.”  The adoption of the Codification did not have a significant impact on the Company’s consolidated financial statements.

Effective June 30, 2009, the Company adopted Statement of Financial Accounting Standards No. 165 (“SFAS No. 165”), “Subsequent Events.” SFAS No. 165 is currently included in the Codification under ASC Topic 855, “Subsequent Events” (“ASC 855”).  ASC 855 establishes general standards of accounting for and disclosure of events that occur after the balance sheet date but before financial statements are issued or available to be issued.  ASC 855 defines (i) the period after the balance sheet date during which a reporting entity’s management should evaluate events or transactions that may occur for potential recognition or disclosure in the financial statements (ii) the circumstances under which an entity should recognize events or transactions occurring after the balance sheet date in its financial statements and (iii) the disclosures an entity should make about events or transactions that occurred after the balance sheet date.  The adoption of the accounting standard did not have an impact on the Company’s consolidated financial statements.  The Company has evaluated all events or transactions that occurred through the date the Company issued these financial statements. During this period, the Company did not have any material recognizable or non-recognizable subsequent events.

8

Note 2 — Fair Value Measurements

Effective January 1, 2008, the Company adopted Statement of Financial Accounting Standards No. 157 (“SFAS No. 157”), “Fair Value Measurements” for financial assets and liabilities.  Additionally, in accordance with Financial Accounting Standards Board Staff Position No. 157-2, (“FSP No 157-2”), “Effective date of FASB Statement No. 157,” the Company delayed application of SFAS No. 157 for non-financial assets and non-financial liabilities until January 1, 2009, except for those that are recognized or disclosed at fair value on a recurring basis.  SFAS No. 157 and FSP No. 157-2 are now included in ASC Topic 820, “Fair Value Measurements and Disclosures” (“ASC 820”).  ASC 820 defines fair value, establishes a framework for measuring fair value in generally accepted accounting principles, and expands disclosures about fair value measurements.  ASC 820 applies to all financial instruments that are being measured and reported on a fair value basis.  ASC 820 defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date; it also establishes a fair value hierarchy that prioritizes the inputs used in valuation methodologies into the following three levels:

·Level 1 Inputs — Unadjusted quoted prices in active markets for identical assets or liabilities.

·Level 2 Inputs — Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

·Level 3 Inputs — Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.  Level 3 assets and liabilities include financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or other valuation techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation.

A description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy is set forth below.

The following table represents assets and liabilities reported on the consolidated balance sheets at their fair value as of September 30, 2010 by level within the fair value measurement hierarchy:

			Fair Value Measurements at Reporting Date Using
			(in thousands)
	Assets/Liabilities Measured at Fair Value		Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
	September 30, 2010		(Level 1)		(Level 2)		(Level 3)
Measured on a recurring basis:
Assets:
U.S. Treasury securities
Available-for-sale	$	1,328	$	—	$	1,328	$	—
Residential mortgage-backed securities
Available-for-sale	4,992,076		—		4,944,298		47,778
States and political subdivisions
Available-for-sale	155,846		—		155,846		—
Other
Available-for-sale	14,925		14,925		—		—
Measured on a non-recurring basis:
Assets:
Impaired Loans	39,163		—		—		39,163
Non-financial assets:
Other real estate owned	49,666		—		—		49,666

9

The following table represents assets and liabilities reported on the consolidated balance sheets at their fair value as of December 31, 2009 by level within the fair value measurement hierarchy:

			Fair Value Measurements at Reporting Date Using
			(in thousands)
	Assets/Liabilities Measured at Fair Value		Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
	December 31, 2009		(Level 1)		(Level 2)		(Level 3)
Measured on a recurring basis:
Assets:
U.S. Treasury securities
Available-for-sale	$	1,327	$	—	$	1,327	$	—
Residential mortgage-backed securities
Available-for-sale	4,491,764		—		4,432,195		59,569
States and political subdivisions
Available-for-sale	136,866		—		136,866		—
Other
Available-for-sale	14,126		14,126		—		—
Measured on a non-recurring basis:
Assets:
Impaired Loans	76,225		—		—		76,225
Non-Financial Assets
Other real estate owned	15,255		—		—		15,255

Investment securities available-for-sale are classified within level 2 and level 3 of the valuation hierarchy, with the exception of certain equity investments that are classified within level 1.  For investments classified as level 2 in the fair value hierarchy, the Company obtains fair value measurements for investment securities from an independent pricing service.  The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the bond’s terms and conditions, among other things.  Investment securities classified as level 3 are non-agency mortgage-backed securities.  The non-agency mortgage-backed securities held by the Company are traded in in-active markets and markets that have experienced significant decreases in volume and level of activity, as exhibited by few recent transactions, a significant decline or absence of new issuances, price quotations that are not based on comparable securities transactions and wide bid-ask spreads among other factors.  As a result of the inability to use quoted market prices to determine fair value for these securities, the Company determined that fair value, as determined by level 3 inputs in the fair value hierarchy, is more appropriate for financial reporting and more consistent with the expected performance of the investments.  For the investments classified within level 3 of the fair value hierarchy, the Company used a discounted cash flow model to determine fair value.  Inputs in the model included both historical performance and expected future performance based on information currently available.  Assumptions used in the discounted cash flow model included estimates on future principal prepayment rates, default and loss severity rates.  The Company estimates that future principal prepayment rates will range from 4 — 5% and used a 13% discount rate.

10

The following table presents a reconciliation of activity for such mortgage-backed securities on a net basis (in thousands):

Balance at December 31, 2009	$	59,569
Principal paydowns, net of discount amortization	(7,802		)
Total unrealized gains (losses) included in:
Other comprehensive income	4,003
Net income	(7,992		)
Balance at September 30, 2010	$	47,778

Certain financial assets and financial liabilities are measured at fair value on a nonrecurring basis.  The instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances (for example, when there is evidence of impairment).

As of September 30, 2010, the Company’s financial instruments measured at fair value on a non-recurring basis are limited to impaired loans.  Impaired loans are classified within level 3 of the valuation hierarchy.  The fair value of impaired loans is derived in accordance with FASB ASC 310, “Receivables”.  The fair value of impaired loans is based on the fair value of the collateral, as determined through an external appraisal process, discounted based on internal criteria.  Impaired loans are primarily comprised of collateral-dependent commercial loans. Non-financial assets measured at fair value on a non-recurring basis are limited to other real estate owned.  Other real estate owned is comprised of real estate acquired by foreclosure and deeds in lieu of foreclosure. Other real estate owned is carried at the lower of the recorded investment in the property or its fair value less estimated costs to sell such property (as determined by independent appraisal) within level 3 of the fair value hierarchy.  Prior to foreclosure, the value of the underlying loan is written down to the fair value of the real estate to be acquired by a charge to the allowance for probable loan losses, if necessary.  The fair value is reviewed periodically and subsequent write downs are made accordingly.  Other real estate owned is included in other assets on the consolidated financial statements.

The fair value estimates, methods, and assumptions for the Company’s financial instruments at September 30, 2010 and December 31, 2009 are outlined below.

Cash and Due From Banks and Federal Funds Sold

For these short-term instruments, the carrying amount is a reasonable estimate of fair value.

Investment securities held-to-maturity

The carrying amounts of investments held-to-maturity approximate fair value.

Investment Securities

For investment securities, which include U. S. Treasury securities, obligations of other U. S. government agencies, obligations of states and political subdivisions and mortgage pass through and related securities, fair values are based on quoted market prices or dealer quotes. Fair values are based on the value of one unit without regard to any premium or discount that may result from concentrations of ownership of a financial instrument, probable tax ramifications, or estimated transaction costs. See disclosures of fair value of investment securities in Note 6.

Loans

Fair values are estimated for portfolios of loans with similar financial characteristics.  Loans are segregated by type such as commercial, real estate and consumer loans as outlined by regulatory reporting guidelines.  Each category is segmented into fixed and variable interest rate terms and by performing and non-performing categories.

11

For variable rate performing loans, the carrying amount approximates the fair value.  For fixed rate performing loans, except residential mortgage loans, the fair value is calculated by discounting scheduled cash flows through the estimated maturity using estimated market discount rates that reflect the credit and interest rate risk inherent in the loan.  For performing residential mortgage loans, fair value is estimated by discounting contractual cash flows adjusted for prepayment estimates using discount rates based on secondary market sources or the primary origination market.  At September 30, 2010, and December 31, 2009, the carrying amount of fixed rate performing loans was $1,363,307,000 and $1,303,049,000 respectively, and the estimated fair value was $1,252,879,000 and $1,200,343,000, respectively.

Accrued Interest

The carrying amounts of accrued interest approximate fair value.

Deposits

The fair value of deposits with no stated maturity, such as non-interest bearing demand deposit accounts, savings accounts and interest bearing demand deposit accounts, was equal to the amount payable on demand as of September 30, 2010 and December 31, 2009.  The fair value of time deposits is based on the discounted value of contractual cash flows.  The discount rate is based on currently offered rates.  At September 30, 2010 and December 31, 2009, the carrying amount of time deposits was $3,423,177,000 and $3,398,656,000, respectively, and the estimated fair value was $3,439,168,000 and $3,412,538,000, respectively.

Securities Sold Under Repurchase Agreements and Other Borrowed Funds

Securities sold under repurchase agreements include both short and long-term maturities.  Due to the contractual terms of the short-term instruments, the carrying amounts approximated fair value at September 30, 2010 and December 31, 2009.  The fair value of the long-term instruments is based on established market spreads.  At September 30, 2010 and December 31, 2009, the carrying amount of long-term repurchase agreements was $1,000,000,000 and the estimated fair value was $1,159,238,000 and $1,099,064,000, respectively.  Other borrowed funds are short-term Federal Home Loan Bank borrowings.  Due to the contractual terms of these financial instruments, the carrying amounts approximated fair value at September 30, 2010 and December 31, 2009.

Junior Subordinated Deferrable Interest Debentures

The Company currently has fixed and floating junior subordinated deferrable interest debentures outstanding.  Due to the contractual terms of the floating rate junior subordinated deferrable interest debentures, the carrying amounts approximated fair value at September 30, 2010 and December 31, 2009.  The fair value of the fixed junior subordinated deferrable interest debentures is based on established market spreads to the debentures.  At September 30, 2010 and December 31, 2009, the carrying amount of fixed junior subordinated deferrable interest debentures was $139,251,000 and $139,224,000, respectively, and the estimated fair value was $73,473,000 and $65,762,000, respectively.

Commitments to Extend Credit and Letters of Credit

Commitments to extend credit and fund letters of credit are principally at current interest rates, and, therefore, the carrying amount approximates fair value.

Limitations

Fair value estimates are made at a point in time, based on relevant market information and information about the financial instrument.  These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument.  Because no market exists for a significant portion of the Company’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments and other factors.  These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision.  Changes in assumptions could significantly affect the estimates.

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Fair value estimates are based on existing on-and off-statement of condition financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments.  Other significant assets and liabilities that are not considered financial assets or liabilities include the bank premises and equipment and core deposit value.  In addition, the tax ramifications related to the effect of fair value estimates have not been considered in the above estimates.

Note 3— Loans

A summary of net loans, by loan type at September 30, 2010 and December 31, 2009 is as follows:

	September 30,		December 31,
	2010		2009
	(Dollars in Thousands)
Commercial, financial and agricultural	$	2,655,778	$	2,703,379
Real estate — mortgage	971,239		954,010
Real estate — construction	1,483,584		1,583,057
Consumer	136,709		146,331
Foreign	250,110		280,485
Total loans	$	5,497,420	$	5,667,262

Note 4 - Allowance for Probable Loan Losses

A summary of the transactions in the allowance for probable loan losses is as follows:

	September 30,			September 30,
	2010			2009
	(Dollars in Thousands)
Balance at December 31,	$	95,393		$	73,461
Losses charged to allowance	(29,036		)	(29,864		)
Recoveries credited to allowance	998			1,296
Net losses charged to allowance	(28,038		)	(28,568		)
Provision charged to operations	15,495			45,429
Balance at September 30,	$	82,850		$	90,322

The losses charged to the allowance have remained at similar levels for the nine months ended September 30, 2010 versus the same period of 2009; however, the lower level of impaired loans during the first nine months of 2010 indicate that losses charged to the allowance during the first nine months of 2010 were primarily on previously identified exposures.  The provision for probable loan losses is increased or decreased accordingly to ensure the adequacy of the allowance for probable loan losses.  As of September 30, 2010, management has determined that the allowance for probable loan losses is adequate relative to the risk inherent to the current loan portfolio.  The nationwide recession and its consequences are being felt in the Company’s markets, but not to the extent being seen in the nation as a whole.  These factors, as well as other economic issues, have affected the Company’s provisions as well as charge-offs.

Impaired loans are those loans where it is probable that all amounts due according to contractual terms of the loan agreement will not be collected.  The Company has identified these loans through its normal loan review procedures.    Impaired loans are measured based on (1) the present value of expected future cash flows discounted at the loan’s effective interest rate; (2) the loan’s observable market price; or (3) the fair value of the collateral if the loan is collateral dependent.  Substantially all of the Company’s impaired loans are measured at the fair value of the collateral. In limited cases, the Company may use other methods to determine the level of impairment of a loan if such loan is not collateral dependent.

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The following table details key information regarding the Company’s impaired loans:

	September 30,		December 31,
	2010		2009
	(Dollars in Thousands)
Balance of impaired loans where there is a related allowance for loan loss	$	53,086	$	106,780
Balance of impaired loans where there is no related allowance for loan loss	39,668		11,494
Total impaired loans	$	92,754	$	118,274
Allowance allocated to impaired loans	$	13,923	$	30,555

The impaired loans included in the table above are primarily comprised of collateral dependent commercial loans, which have not been fully charged off.  The average recorded investment in impaired loans was $114,401,000 and $149,528,000 for the nine months and year ended September 30, 2010 and December 31, 2009, respectively.  The interest recognized on impaired loans was not significant.  A portion of the impaired loans have adequate collateral and credit enhancements not requiring a related allowance for loan loss.  The level of impaired loans is reflective of the economic weakness that has been created by the financial crisis and the subsequent economic downturn.  Management is confident the Company’s loss exposure regarding these credits will be significantly reduced due to the Company’s long-standing practices that emphasize secured lending with strong collateral positions and guarantor support.  Management is likewise confident the reserve for probable loan losses is adequate.  The Company has no direct exposure to sub-prime loans in its loan portfolio, but the sub-prime crisis has affected the credit markets on a national level.  Management’s decision to place loans in the impaired loan category does not necessarily mean that the Company will experience significant losses from these loans or significant increases in impaired loans.

Management of the Company recognizes the risks associated with these impaired loans.  However, management’s decision to place loans in this category does not necessarily mean that losses will occur. In the current environment, troubled loan management can be protracted because of the legal and process problems that delay the collection of an otherwise collectible loan.   Additionally, management believes that the collateral related to these impaired loans and/or the secondary support from guarantors mitigates the potential for losses from impaired loans.    It is also important to note that even though the economic conditions in Texas and Oklahoma are weakened, we believe these markets are stronger and better positioned to recover than many other areas of the country.

The bank subsidiaries charge off that portion of any loan which management considers to represent a loss as well as that portion of any other loan which is classified as a “loss” by bank examiners.  Commercial and industrial or real estate loans are generally considered by management to represent a loss, in whole or part, when an exposure beyond any collateral coverage is apparent and when no further collection of the loss portion is anticipated based on the borrower’s financial condition and general economic conditions in the borrower’s industry. Generally, unsecured consumer loans are charged-off when 90 days past due.

While management of the Company considers that it is generally able to identify borrowers with financial problems reasonably early and to monitor credit extended to such borrowers carefully, there is no precise method of predicting loan losses.  The determination that a loan is likely to be uncollectible and that it should be wholly or partially charged-off as a loss is an exercise of judgment.  Similarly, the determination of the adequacy of the allowance for probable loan losses can be made only on a subjective basis.  It is the judgment of the Company’s management that the allowance for probable loan losses at September 30, 2010 was adequate to absorb probable losses from loans in the portfolio at that date.

Note 5 — Stock Options

On April 1, 2005, the Board of Directors adopted the 2005 International Bancshares Corporation Stock Option Plan (the “2005 Plan”).  Effective May 19, 2008, the 2005 Plan was amended to increase the number of shares available for stock option grants under the 2005 Plan by 300,000 shares.  The 2005 Plan replaced the 1996 International Bancshares Corporation Key Contributor Stock Option Plan (the “1996 Plan”).  Under the 2005 Plan, both qualified incentive stock options (“ISOs”) and non-qualified stock options (“NQSOs”) may be granted.  Options granted may be exercisable for a period of up to 10 years from the date of grant, excluding ISOs granted to 10% shareholders, which may be exercisable for a period of up to only five years.  As of September 30, 2010, 192,524 shares were available for future grants under the 2005 Plan.

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A summary of option activity under the stock option plans for the nine months ended September 30, 2010 is as follows:

	Number of options	Weighted average exercise price		Weighted average remaining contractual term (years)	Aggregate intrinsic value ($)
					(Dollars in Thousands)
Options outstanding at December 31, 2009	823,592	$	20.54
Plus: Options granted	—	—
Less:
Options exercised	149	10.40
Options expired	—	—
Options forfeited	49,602	19.34
Options outstanding at September 30, 2010	773,841	$	20.62	4.06	$	1,452
Options fully vested and exercisable at September 30, 2010	322,092	$	23.63	2.58	$	75

Stock-based compensation expense included in the consolidated statements of income for the three and nine months ended September 30, 2010 was approximately $134,000 and $431,000, respectively.  As of September 30, 2010, there was approximately $768,000 of total unrecognized stock-based compensation cost related to non-vested options granted under the Company plans that will be recognized over a weighted average period of 1.5 years.

Note 6 - Investment Securities

The Company classifies debt and equity securities into one of three categories:  held-to maturity, available-for-sale, or trading.  Securities classified as “held-to-maturity” are carried at amortized cost for financial statement reporting, while securities classified as “available-for-sale” and “trading” are carried at their fair value.  Unrealized holding gains and losses are included in net income for those securities classified as “trading”, while unrealized holding gains and losses related to those securities classified as “available-for-sale” are excluded from net income and reported net of tax as other comprehensive income (loss) and accumulated other comprehensive income (loss) until realized, or in the case of losses, when deemed other than temporary.

The amortized cost and estimated fair value by type of investment security at September 30, 2010 are as follows:

	Held to Maturity
	Amortized cost		Gross unrealized gains		Gross unrealized losses		Estimated fair value		Carrying value
	(Dollars in Thousands)
Other securities	$	2,450	$	—	$	—	$	2,450	$	2,450
Total investment securities	$	2,450	$	—	$	—	$	2,450	$	2,450

	Available for Sale
	Amortized cost		Gross unrealized gains		Gross unrealized losses			Estimated fair value		Carrying value (1)
	(Dollars in Thousands)
U.S. Treasury securities	$	1,328	$	—	$	—		$	1,328	$	1,328
Residential mortgage-backed securities	4,893,300		111,764		(12,988		)	4,992,076		4,992,076
Obligations of states and political subdivisions	148,364		7,614		(132		)	155,846		155,846
Equity securities	13,825		1,120		(20		)	14,925		14,925
Total investment securities	$	5,056,817	$	120,498	$	(13,140	)	$	5,164,175	$	5,164,175

(1)Included in the carrying value of residential mortgage-backed securities are $2,021,893 of mortgage-backed securities issued by Ginnie Mae, $2,922,405 of mortgage-backed securities issued by Fannie Mae and Freddie Mac and $47,778 issued by non-government entities.

(2)Included in the table above and in other liabilities on the consolidated financial statements are $451,148,000 of residential mortgage-backed securities that were purchased, but not yet settled as of September 30, 2010.

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The amortized cost and estimated fair value by type of investment security at December 31, 2009 are as follows:

	Held to Maturity
	Amortized cost		Gross unrealized gains		Gross unrealized losses		Estimated fair value		Carrying value
	(Dollars in Thousands)
Other securities	$	2,450	$	—	$	—	$	2,450	$	2,450
Total investment securities	$	2,450	$	—	$	—	$	2,450	$	2,450

	Available for Sale
	Amortized cost		Gross unrealized gains		Gross unrealized losses			Estimated fair value		Carrying value (1)
	(Dollars in Thousands)
U.S. Treasury securities	$	1,327	$	—	$	—		$	1,327	$	1,327
Residential mortgage-backed securities	4,393,731		113,138		(15,105		)	4,491,764		4,491,764
Obligations of states and political subdivisions	132,968		4,102		(204		)	136,866		136,866
Equity securities	13,825		343		(42		)	14,126		14,126
Total investment securities	$	4,541,851	$	117,583	$	(15,351	)	$	4,644,083	$	4,644,083

(1)Included in the carrying value of residential mortgage-backed securities are $1,898,905 of mortgage-backed securities issued by Ginnie Mae, $2,533,290 of mortgage-backed securities issued by Fannie Mae and Freddie Mac and $59,569 issued by non-government entities

The amortized cost and estimated fair value of investment securities at September 30, 2010, by contractual maturity, are shown below.  Expected maturities will differ from contractual maturities because borrowers may have the right to prepay obligations with or without prepayment penalties.

	Held to Maturity				Available for Sale
	Amortized Cost		Estimated fair value		Amortized Cost		Estimated fair value
	(Dollars in Thousands)
Due in one year or less	$	1,200	$	1,200	$	1,328	$	1,328
Due after one year through five years	1,250		1,250		781		794
Due after five years through ten years	—		—		6,238		6,316
Due after ten years	—		—		141,345		148,736
Residential mortgage-backed securities	—		—		4,893,300		4,992,076
Equity securities	—		—		13,825		14,925
Total investment securities	$	2,450	$	2,450	$	5,056,817	$	5,164,175

Residential mortgage-backed securities are securities issued by the Freddie Mac, Fannie Mae, Ginnie Mae or non-government entities.  Investments in residential mortgage-backed securities issued by Ginnie Mae are fully guaranteed by the U.S. Government.  Investments in residential mortgage-backed securities issued by Freddie Mac and Fannie Mae are not fully guaranteed by the U.S. Government, but carry an implied AAA rating with limited credit risk, particularly given the placement of Fannie Mae and Freddie Mac into conservatorship by the federal government in early September 2008.

The amortized cost and fair value of available for sale investment securities pledged to qualify for fiduciary powers, to secure public monies as required by law, repurchase agreements and short-term fixed borrowings was $2,559,016,000 and $2,641,193,000 at September 30, 2010.

Proceeds from the sale of securities available-for-sale were $17,001,000 and $1,068,184,000 for the three and nine months ended September 30, 2010, which included $15,137,000 and $1,057,815,000 of mortgage-backed securities. Gross gains of $14,000 and $30,857,000 and gross losses of $(1,000) and $(7,000) were realized on the sales for the three and nine months ended September 30, 2010, respectively.  During the three and nine months ended September 30, 2010, the Company recorded impairment charges of $531,000 and $7,992,000, before tax, representing the credit loss on non-agency mortgage-backed securities.

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Gross unrealized losses on investment securities and the fair value of the related securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at September 30, 2010, were as follows:

	Less than 12 months					12 months or more					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
	(Dollars in Thousands)
Available for sale:
Residential mortgage-backed securities	$	262,137	$	(1,925	)	$	47,778	$	(11,063	)	$	309,915	$	(12,988	)
Obligations of states and political subdivisions	2,677		(82		)	385		(50		)	3,062		(132		)
Other equity securities	—		—			55		(20		)	55		(20		)
	$	264,814	$	(2,007	)	$	48,218	$	(11,133	)	$	313,032	$	(13,140	)

Gross unrealized losses on investment securities and the fair value of the related securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at December 31, 2009, were as follows:

	Less than 12 months					12 months or more					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
	(Dollars in Thousands)
Available for sale:
Mortgage-backed securities	$	16,581	$	(37	)	$	59,879	$	(15,068	)	$	76,460	$	(15,105	)
Obligations of states and political subdivisions	14,910		(201		)	275		(3		)	15,185		(204		)
Equity securities	—		—			33		(42		)	33		(42		)
	$	31,491	$	(238	)	$	60,187	$	(15,113	)	$	91,678	$	(15,351	)

The unrealized losses on investments in residential mortgage-backed securities are primarily caused by changes in market interest rates.  Residential mortgage-backed securities are primarily securities issued by the Freddie Mac, Fannie Mae and Ginnie Mae.  The contractual cash obligations of the securities issued by Ginnie Mae are fully guaranteed by the U.S. Government.  The contractual cash obligations of the securities issued by Freddie Mac and Fannie Mae are not fully guaranteed by the U.S. Government; however, the securities carry an implied AAA rating with limited credit risk, particularly given the placement of Fannie Mae and Freddie Mac into conservatorship by the federal government in early September 2008.  The decrease in fair value on residential mortgage-backed securities issued by Freddie Mac, Fannie Mae and Ginnie Mae is due to market interest rates.  The Company has no intent to sell and will more than likely not be required to sell before a market price recovery or maturity of the securities; therefore, it is the conclusion of the Company that the investments in residential mortgage-backed securities issued by Freddie Mac, Fannie Mae and Ginnie Mae are not considered other-than-temporarily impaired.  In addition, the Company has a small investment in non-agency residential mortgage-backed securities that have strong credit backgrounds and include additional credit enhancements to protect the Company from losses arising from high foreclosure rates.  These securities have additional market volatility beyond economically induced interest rate events.  The Company has received principal and interest payments in line with expected cash flows at the time of purchase.  The Company has no intent to sell and will more than likely not be required to sell the non-agency residential mortgage-backed securities before recovery of amortized cost.  It is the conclusion of the Company that the investments in non-agency residential mortgage-backed securities are other-than-temporarily impaired due to both credit and other than credit issues.  Impairment charges of $531,000 ($345,000, after tax) and $7,992,000 ($5,195,000, after tax), were recorded in the three and nine months of 2010 on the non-agency residential mortgage backed securities.  The impairment charges represent the credit related impairment on the securities.

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The unrealized losses on investments in other securities are caused by fluctuations in market interest rates.  The underlying cash obligations of the securities are guaranteed by the entity underwriting the debt instrument.  It is the belief of the Company that the entity issuing the debt will honor its interest payment schedule, as well as the full debt at maturity.  The securities are purchased by the Company for their economic value.  The decrease in fair value is primarily due to market interest rates and not other factors, and because the Company has no intent to sell and will more than likely not be required to sell before a market price recovery or maturity of the securities, it is the conclusion of the Company that the investments are not considered other-than-temporarily impaired.

The following table presents a reconciliation of credit-related impairment charges on available-for-sale investments recognized in earnings for the three months ended September 30, 2010 (in Thousands):

Balance at June 30, 2010	$	7,461
Impairment charges recognized during period	531
Balance at September 30, 2010	$	7,992

The following table presents a reconciliation of credit-related impairment charges on available-for-sale investments recognized in earnings for the nine months ended September 30, 2010 (in Thousands):

Balance at December 31, 2009	$	—
Impairment charges recognized during period	7,992
Balance at September 30, 2010	$	7,992

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Note 7 — Other Borrowed Funds

Other borrowed funds include Federal Home Loan Bank borrowings, which are short-term borrowings issued by the Federal Home Loan Bank of Dallas at the market price offered at the time of funding.  These borrowings are secured by mortgage-backed investment securities and a portion of the Company’s loan portfolio.  At September 30, 2010, other borrowed funds totaled $922,300,000, a decrease of 31.6% from $1,347,625,000 at December 31, 2009.  The decrease in other borrowed funds can be attributed to the use of funds generated from the sale of mortgage-backed securities to facilitate a re-positioning of the Company’s investment portfolio.

Note 8 — Junior Subordinated Interest Deferrable Debentures

The Company has formed eight statutory business trusts under the laws of the State of Delaware, for the purpose of issuing trust preferred securities.  The eight statutory business trusts formed by the Company (the “Trusts”) have each issued Capital and Common Securities and invested the proceeds thereof in an equivalent amount of junior subordinated debentures (the “Debentures”) issued by the Company.  As of September 30, 2010, the principal amount of debentures outstanding totaled $201,109,000.  As a result of the participation in the TARP Capital Purchase Program, the Company may not, without the consent of the Treasury Department, redeem any of the Debentures until the earlier to occur of December 23, 2011, or the date on which the Company has redeemed all of the Series A Preferred Stock issued under the Capital Purchase Program or the date on which the Treasury has transferred all of the Series A Preferred Stock to third parties not affiliated with the Treasury.

The Debentures are subordinated and junior in right of payment to all present and future senior indebtedness (as defined in the respective indentures) of the Company, and are pari passu with one another.  The interest rate payable on, and the payment terms of the Debentures are the same as the distribution rate and payment terms of the respective issues of Capital and Common Securities issued by the Trusts.  The Company has fully and unconditionally guaranteed the obligations of each of the Trusts with respect to the Capital and Common Securities.  The Company has the right, unless an Event of Default (as defined in the Indentures) has occurred and is continuing, to defer payment of interest on the Debentures for up to ten consecutive semi-annual periods on Trust I and for up to twenty consecutive quarterly periods on Trusts VI, VII, VIII, IX, X, XI and XII.  If interest payments on any of the Debentures are deferred, distributions on both the Capital and Common Securities related to that Debenture would also be deferred.  The redemption prior to maturity of any of the Debentures may require the prior approval of the Federal Reserve and/or other regulatory bodies.

For financial reporting purposes, the Trusts are treated as investments of the Company and not consolidated in the consolidated financial statements.  Although the Capital Securities issued by each of the Trusts are not included as a component of shareholders’ equity on the consolidated statement of condition, the Capital Securities are treated as capital for regulatory purposes.  Specifically, under applicable regulatory guidelines, the Capital Securities issued by the Trusts qualify as Tier 1 capital up to a maximum of 25% of Tier 1 capital on an aggregate basis.  Any amount that exceeds the 25% threshold would qualify as Tier 2 capital.  At September 30, 2010, the total $201,109,000, of the Capital Securities outstanding qualified as Tier 1 capital.

In March 2005, the Federal Reserve Board issued a final rule that allowed the inclusion of trust preferred securities in Tier 1 capital, but placed stricter quantitative limits.  Under the final rule, after a transition period ending March 31, 2009, the aggregate amount of trust preferred securities and certain other capital elements would be limited to 25% of Tier 1 capital, net of goodwill, less any associated deferred tax liability.  The amount of trust preferred securities and certain other elements in excess of the limit could be included in Tier 2 capital, subject to restrictions.  On March 16, 2009, the Federal Reserve Board extended for two years the transition period.  The Company believes that substantially all of the current trust preferred securities will be included in Tier 1 capital after the transition period ending on March 31, 2011.  The Dodd-Frank Regulatory Reform Act was signed into law on July 21, 2010.  Pursuant to that Act, trust preferred securities of bank holding companies with consolidated assets under $15 billion that were issued before May 19, 2010 are grandfathered.  Pursuant to this grandfather provision, these entities will be able to continue to treat these securities as Tier 1 capital subject to existing Federal Reserve limitations through the life of the securities.

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The following table illustrates key information about each of the Capital and Common Securities and their interest rate at September 30, 2010:

	Junior Subordinated Deferrable Interest Debentures		Repricing Frequency	Interest Rate		Interest Rate Index	Maturity Date	Optional Redemption Date
	(In Thousands)
Trust I	$	10,383	Fixed	10.18	%	Fixed	June 2031	June 2011
Trust VI	$	25,774	Quarterly	3.83	%	LIBOR + 3.45	November 2032	February 2011
Trust VII	$	10,310	Quarterly	3.72	%	LIBOR + 3.25	April 2033	January 2011
Trust VIII	$	25,774	Quarterly	3.58	%	LIBOR + 3.05	October 2033	January 2011
Trust IX	$	41,238	Fixed	7.10	%(1)	Fixed	October 2036	October 2011
Trust X	$	34,021	Fixed	6.66	%(1)	Fixed	February 2037	February 2012
Trust XI	$	32,990	Fixed	6.82	%(1)	Fixed	July 2037	July 2012
Trust XII	$	20,619	Fixed	6.85	%(1)	Fixed	September 2037	September 2012
	$	201,109

(1) Trust IX, X, XI and XII accrue interest at a fixed rate for the first five years, then floating at LIBOR + 1.62%, 1.65%, 1.62% and 1.45% thereafter, respectively.

Note 9 — Preferred Stock, Common Stock and Dividends

The Company has outstanding 216,000 shares of Series A cumulative perpetual preferred stock, issued to the US Treasury under the Company’s participation in the Troubled Asset Relief Program Capital Purchase Program (the “TARP Capital Purchase Program”).  The Series A shares have a par value of $.01 per share (the “Senior Preferred Stock”), and a liquidation preference of $1,000 per share, for a total price of $216,000,000.  The Senior Preferred Stock will pay dividends at a rate of 5% per year for the first five years and 9% per year thereafter.  The Senior Preferred Stock has no maturity date and ranks senior to the Company’s common stock with respect to the payment of dividends and distributions and amounts payable upon liquidation, dissolution and winding up of the Company.  In conjunction with the purchase of the Senior Preferred Stock, the US Treasury received a warrant (the “Warrant”) to purchase 1,326,238 shares of the Company’s common stock (the “Warrant Shares”) at $24.43 per share, which would represent an aggregate common stock investment in the Company on exercise of the warrant in full equal to 15% of the Senior Preferred Stock investment.  The term of the Warrant is ten years and was immediately exercisable.  Both the Senior Preferred Stock and Warrant are included as components of Tier 1 capital.  As of September 30, 2010, none of the Warrants had been exercised.  The Company paid dividends on the Senior Preferred Stock on February 16, May 15, and August 15, 2010 in the amount of $2,700,000 each and will pay a dividend on the Senior Preferred Stock on November 15, 2010, in the amount of $2,700,000.

Upon issuance, the fair value of the Series A shares and the associated warrants were computed as if the instruments were issued on a stand-alone basis.  The fair value of the Series A shares were estimated based on discounted cash flows, resulting in a stand-alone fair value of approximately $130.9 million.  The Company used the Black-Sholes-Merton option pricing model to estimate the fair value of the warrants, resulting in a stand-alone fair value of approximately $8.0 million.  The fair values of both were then used to record the Series A shares and Warrants on a relative fair value basis, with the warrants being recorded in Surplus as permanent equity and the Series A shares being recorded at a discount of approximately $12.4 million.  Accretion of the discount associated with the preferred stock is recognized as an increase to preferred stock dividends in determining net income available to common shareholders.  The discount is being amortized over a five year period from the respective issuance date using the effective-yield method and totaled $586,000 and $1,731,000 for the three and nine months ended September 30, 2010.

The Company paid cash dividends to the common shareholders of $.17 per share on April 19, 2010 to all holders of record on April 1, 2010 and $.19 per share on October 18, 2010 to all holders of record on September 30, 2010.  Cash dividends to common shareholders were paid on May 11, and November 2, 2009 to all holders of record on April 27, 2009 and October 19, 2009, respectively.

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The Company terminated its stock repurchase program on December 19, 2008, in connection with participating in the TARP Capital Purchase Program, which program prohibited stock repurchases, except for repurchases made in connection with the administration of an employee benefit plan in the ordinary course of business and consistent with past practices.  On April 7, 2009, the Company obtained consent from the Treasury to repurchase shares of the Company’s common stock; provided, however, that in no event will the aggregate amount of cash dividends and common stock repurchases for a given semi-annual period exceed the aggregate amount that would be used to pay the originally permitted semi-annual cash dividend of $.33 per share.  The Company also received consent from the Treasury to pay quarterly dividends.  The Company will determine on an ongoing basis the best use of the funds and whether a more frequent dividend program and expanded repurchase program are warranted and beneficial to its shareholders.   Following receipt of the Treasury Department’s consent, the Board of Directors established a formal stock repurchase program that authorized the repurchase of up to $40 million of common stock within the following twelve months and on March 9, 2010, the Board of Directors extended the repurchase program and again authorized the repurchase of up to $40 million of common stock during the twelve month period expiring on April 9, 2011, which repurchase cap the Board is inclined to increase over time, subject to the limitations imposed by the Treasury Department’s consent.  Stock repurchases may be made from time to time, on the open market or through private transactions.  Shares repurchased in this program will be held in treasury for reissue for various corporate purposes, including employee stock option plans.  As of October 25, 2010, a total of 7,311,156 shares had been repurchased under all programs at a cost of $250,156,000.

Note 10 - Commitments and Contingent Liabilities and Other Tax Matters

The Company is involved in various legal proceedings that are in various stages of litigation.  Some of these actions allege “lender liability” claims on a variety of theories and claim substantial actual and punitive damages.  The Company has determined, based on discussions with its counsel that any material loss in such actions, individually or in the aggregate, is remote or the damages sought, even if fully recovered, would not be considered material to the consolidated financial position or results of operations of the Company.  However, many of these matters are in various stages of proceedings and further developments could cause management to revise its assessment of these matters.

The Company is involved in a dispute related to certain tax matters that were inherited by the Company in its 2004 acquisition of LFIN.  The dispute involves claims by the former controlling shareholders of LFIN related to approximately $14 million of tax refunds received by the Company based on deductions taken in 2003 by LFIN in connection with losses on loans acquired from a failed thrift and a dispute LFIN had with the FDIC regarding the tax benefits related to the failed thrift acquisition which originated in 1988.  On March 5, 2010, judgment was entered on a jury verdict rendered against the Company in the U.S. District Court for the Western District of Oklahoma (the “Court”).  Other than the tax refunds that are in dispute, the Company does not have any other disputes regarding tax refunds received by the Company in connection with the LFIN acquisition.  While judgment has been entered in the case, certain additional issues related to fees and other matters are to be determined by the Court in the future prior to the judgment becoming final and appealable.  Company management is currently reviewing the judgment, its implications and the Company’s intention to appeal, as well as take other paths of action to mitigate the impact of the judgment.  The Company is disappointed with the judgment but believes it has a number of valid grounds for appeal which it intends to pursue. During the first quarter of 2010, the Company recorded an additional reserve of $21.8 million related to this matter.  As of September 30, 2010, the Company has determined that the established reserve for this matter is still appropriate.  Management will continue to review the developments in this dispute and make appropriate adjustments to the amount reserved, as needed.

During the third quarter of 2010, the Internal Revenue Service refunded approximately $1.8 million in tax and $1.5 million in interest on the tax in connection with an adjustment in basis on prior lease-financing transactions where the Company’s lead bank subsidiary had received a Notice of Final Partnership Administrative Adjustments (“FPAA”).  The interest received on the tax refund was recognized in other interest income and the related tax was included as a credit to provision for income tax expense on the consolidated statement of income.  The recording of the tax refund resulted in a decrease in the Company’s effective tax rate to 28.7% and 32.5% for the three and nine months ended September 30, 2010.

In October 2010, the Company was named as a defendant in two purported class-action lawsuits, including one filed in the United States District Court for the Southern District of Texas and one filed in the United States District Court for the Southern District of Florida where similar lawsuits against a number of other banks are currently pending in a multi-district proceeding known as “In re Checking Account Overdraft Litigation.” The lawsuits challenge the manner in which IBC assesses and collects overdraft fees on ATM and debit transactions and IBC’s policies related to posting order. These cases are in early stages, with no responsive pleadings or motions having been filed. No class has been certified in either case. At this state of the lawsuits, the Company cannot determine the probability of a material adverse result or reasonably estimate a range of potential exposures, if any. The Company intends to defend the actions vigorously.

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Note 11 — Capital Ratios

The Company had a Tier 1 capital to average total asset (leverage) ratio of 12.02% and 10.95%, risk-weighted Tier 1 capital ratio of 18.79% and 17.74% and risk-weighted total capital ratio of 20.02% and 18.99% at September 30, 2010 and December 31, 2009, respectively.  The identified intangibles and goodwill of $301,085,000 as of September 30, 2010, recorded in connection with the acquisitions made by the Company, are deducted from the sum of core capital elements when determining the capital ratios of the Company.  Under applicable regulatory guidelines, the Capital Securities issued by the Trusts qualify as Tier 1 capital up to a maximum of 25% of tier 1 capital on an aggregate basis.  Any amount that exceeds the 25% threshold qualifies as Tier 2 capital.  As of September 30, 2010, the total of $201,109,000 of the Capital Securities outstanding qualified as Tier 1 capital.  The Company actively monitors the regulatory capital ratios to ensure that the Company’s bank subsidiaries are well capitalized under the regulatory framework.

In March 2005, the Federal Reserve Board issued a final rule that allowed the inclusion of trust preferred securities in Tier 1 capital, but placed stricter quantitative limits.  Under the final rule, after a transition period ending March 31, 2009, the aggregate amount of trust preferred securities and certain other capital elements would be limited to 25% of Tier 1 capital, net of goodwill, less any associated deferred tax liability.  The amount of trust preferred securities and certain other elements in excess of the limit could be included in Tier 2 capital, subject to restrictions.  On March 16, 2009, the Federal Reserve Board extended for two years the transition period.  The Company believes that substantially all of the current trust preferred securities will be included in Tier 1 capital after the transition period ending on March 31, 2011.  The Dodd-Frank Regulatory Reform Act was signed into law on July 21, 2010.  Pursuant to that Act, trust preferred securities of bank holding companies with consolidated assets under $15 billion that were issued before May 19, 2010 are grandfathered.  Pursuant to this grandfather provision, these entities will be able to continue to treat these securities as Tier 1 capital subject to existing Federal Reserve limitations through the life of the securities.

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Item 2 - Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion should be read in conjunction with the Company’s consolidated financial statements, and notes thereto, for the year-ended December 31, 2009, included in the Company’s 2009 Form 10-K.  Operating results for the nine months ended September 30, 2010 are not necessarily indicative of the results for the year ending December 31, 2010, or any future period.

Special Cautionary Notice Regarding Forward Looking Information

Certain matters discussed in this report, excluding historical information, include forward-looking statements, within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, and are subject to the safe harbor created by these sections.  Although the Company believes such forward-looking statements are based on reasonable assumptions, no assurance can be given that every objective will be reached.  The words “estimate,” “expect,” “intend,” “believe” and “project,” as well as other words or expressions of a similar meaning are intended to identify forward-looking statements.  Readers are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date of this report.  Such statements are based on current expectations, are inherently uncertain, are subject to risks and should be viewed with caution.  Actual results and experience may differ materially from the forward-looking statements as a result of many factors.

Risk factors that could cause actual results to differ materially from any results that are projected, forecasted, estimated or budgeted by the Company in forward-looking statements include, among others, the following possibilities:

·Local, regional, national and international economic business conditions and the impact they may have on the Company, the Company’s customers, and such customers’ ability to transact profitable business with the Company, including the ability of its borrowers to repay their loans according to their terms or a change in the value of the related collateral.

·Volatility and disruption in national and international financial markets.

·Government intervention in the U.S. financial system.

·Changes in consumer spending, borrowings and savings habits.

·Changes in interest rates and market prices, which could reduce the Company’s net interest margins, asset valuations and expense expectations.

·Changes in the capital markets utilized by the Company and its subsidiaries, including changes in the interest rate environment that may reduce margins.

·Changes in state and/or federal laws and regulations to which the Company and its subsidiaries, as well as their customers, competitors and potential competitors, are subject, including, without limitation, changes in the accounting, tax and regulatory treatment of trust preferred securities, as well as changes in banking, tax, securities, insurance and employment laws and regulations.

·Changes in U.S. — Mexico trade, including, without limitation, reductions in border crossings and commerce resulting from the Homeland Security Programs called “US-VISIT,” which is derived from Section 110 of the Illegal Immigration Reform and Immigrant Responsibility Act of 1996.

·The loss of senior management or operating personnel.

·Increased competition from both within and outside the banking industry.

·The timing, impact and other uncertainties of the Company’s potential future acquisitions including the Company’s ability to identify suitable potential future acquisition candidates, the success or failure in the integration of their operations and the Company’s ability to maintain its current branch network and to enter new markets successfully and capitalize on growth opportunities.

·Changes in the Company’s ability to pay dividends on its Preferred Stock or Common Stock.

·Additions to the Company’s loan loss allowance as a result of changes in local, national or international conditions which adversely affect the Company’s customers.

·Greater than expected costs or difficulties related to the development and integration of new products and lines of business.

·Changes in the soundness of other financial institutions with which the Company interacts.

·Political instability in the United States or Mexico.

·Technological changes.

·Acts of war or terrorism.

·Natural disasters.

·Litigation risk.

·Reduced earnings resulting from the write down of the carrying value of securities held in our securities available-

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for-sale portfolio following a determination that the securities are other-than-temporarily impaired.

·The effect of changes in accounting policies and practices as may be adopted by the regulatory agencies, as well as the Public Company Accounting Oversight Board, the Financial Accounting Standards Board and other accounting standards setters.

·The costs and effects of regulatory developments, including the resolution of regulatory or other governmental inquiries and the results of regulatory examinations or reviews, and general regulatory burden.

·The effect of final rules amending Regulation E that prohibit financial institutions from charging consumer fees for paying overdrafts on ATM and one-time debit card transactions, unless the consumer consents or opts-in to the overdraft service for those types of transactions, as well as, the effect of any other regulatory or legal developments that limit overdraft services.

·The reduction of income and possible increase in required capital levels related to the adoption of new legislation, including without limitation the Dodd-Frank Regulatory Reform Act and the implementing rules and regulations that will be adopted in the future, that may negatively affect interchange revenue from debit card transactions as well as revenue from consumer services and may required increased levels of capital.

·The Company’s success at managing the risks involved in the foregoing items.

Forward-looking statements speak only as of the date on which such statements are made.  It is not probable to foresee or identify all such factors.  The Company makes no commitment to update any forward-looking statement, or to disclose any facts, events or circumstances after the date hereof that may affect the accuracy of any forward-looking statement, unless required by law.

Summary of Recent Legislation

On July 21 2010, sweeping financial regulatory reform legislation entitled the “Dodd-Frank Wall Street Reform and Consumer Protection Act” (the “Dodd-Frank Regulatory Reform Act”) was signed into law. The Dodd-Frank Regulatory Reform Act implements far-reaching changes across the financial regulatory landscape, including provisions that, among other things, will:

·Centralize responsibility for consumer financial protection by creating a new agency, the Consumer Financial Protection Bureau, responsible for implementing, examining and enforcing compliance with federal consumer financial laws.

·Restrict the preemption of state law by federal law and disallow subsidiaries and affiliates of banks from availing themselves of such preemption.

·Apply the same leverage and risk-based capital requirements that apply to insured depository institutions to most bank holding companies.

·Require each federal bank regulatory agency to seek to make its capital requirements for banks countercyclical so that capital requirements increase in times of economic expansion and decrease in times of economic contraction.

·Require financial holding companies, such as the Company, to be well-capitalized and well-managed. Bank holding companies and banks must also be both well-capitalized and well-managed in order to acquire banks located outside their home state.

·Change the assessment base for federal deposit insurance from the amount of insured deposits to consolidated assets less tangible capital, eliminate the ceiling on the size of the Deposit Insurance Fund (“DIF”) and increase the floor of the size of the DIF.

·Impose comprehensive regulation of the over-the-counter derivatives market, which would include certain provisions that would effectively prohibit insured depository institutions from conducting certain derivatives businesses in the institution itself.

·Implement corporate governance revisions, including executive compensation and proxy access by shareholders, provisions that apply to all public companies, not just financial institutions.

·Make permanent the $250,000 limit for federal deposit insurance and increase the cash limit of Securities Investor Protection Corporation protection from $100,000 to $250,000 and provide unlimited federal deposit insurance until January 1, 2013 for non-interest bearing demand transaction accounts at all insured depository institutions.

·Repeal the federal prohibitions on the payment of interest on demand deposits, thereby permitting depository institutions to pay interest on business transaction and other accounts.

·Amend the Electronic Fund Transfer Act (“EFTA”) to, among other things, give the Federal Reserve the authority to establish rules regarding interchange fees charged for electronic debit transactions by payment card issuers having assets over $10 billion and to enforce a new statutory requirement that such fees be reasonable and proportional to the actual cost of a transaction to the issuer.

·Increase the authority of the Federal Reserve to examine the Company and its non-bank subsidiaries.

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Many aspects of the Dodd-Frank Regulatory Reform Act are subject to rulemaking and will take effect over several years, making it difficult to anticipate the overall financial impact on the Company, its customers or the financial industry more generally. Provisions in the legislation that affect deposit insurance assessments, payment of interest on demand deposits and interchange fees could increase the costs associated with deposits as well as place limitations on certain revenues those deposits may generate. Provisions in the legislation that may require revisions to the capital requirements of the Company could require the Company to seek other sources of capital in the future.

Recent Developments

On July 1, 2009, the Financial Accounting Standards Board officially launched the “FASB Accounting Standards Codification,” (“Codification”), which is now the single official source of authoritative, non-governmental U.S. GAAP, in addition to guidance issued by the Securities and Exchange Commission (“SEC”).  The Codification supersedes all prior accounting literature.  With the launch of the Codification, U.S. GAAP now consists of two levels — authoritative (Codification) and non-authoritative (anything not in the Codification).  The Codification is effective for interim and annual periods ending after September 15, 2009, and is organized into approximately 90 accounting topics.  The FASB will no longer be issuing accounting standards in the form of Statements, Staff Positions or Emerging Issues Task Force Abstracts.  The FASB will instead amend the Codification by issuing “Accounting Standards Updates.”  The adoption of the Codification did not have a significant impact to the Company’s consolidated financial statements.

Overview

The Company, which is headquartered in Laredo, Texas, with 279 facilities and more than 440 ATMs, provides banking services for commercial, consumer and international customers of South, Central and Southeast Texas and the State of Oklahoma.  The Company is one of the largest independent commercial bank holding companies headquartered in Texas.  The Company, through its bank subsidiaries, is in the business of gathering funds from various sources and investing those funds in order to earn a return.  The Company either directly or through a bank subsidiary owns two insurance agencies, a liquidating subsidiary, a broker/dealer and a fifty percent interest in an investment banking unit that owns a broker/dealer.  The Company’s primary earnings come from the spread between the interest earned on interest-bearing assets and the interest paid on interest-bearing liabilities.  In addition, the Company generates income from fees on products offered to commercial, consumer and international customers.

The Company is very active in facilitating trade along the United States border with Mexico.  The Company does a large amount of business with customers domiciled in Mexico.  Deposits from persons and entities domiciled in Mexico comprise a large and stable portion of the deposit base of the Company’s bank subsidiaries.  The Company also serves the growing Hispanic population through the Company’s facilities located throughout South, Central and Southeast Texas and the State of Oklahoma.

Expense control is an essential element in the Company’s long-term profitability.  As a result, the Company monitors the efficiency ratio, which is a measure of non-interest expense to net interest income plus non-interest income closely.  The Company’s efficiency ratio has been negatively impacted over the last few years because of the Company’s branch expansion which has added a total of 18 branches during 2009 and 2010.  During expansion periods, the Company’s efficiency ratio will suffer but the long-term benefits of the expansion should be realized in future periods and the benefits should positively impact the efficiency ratio in future periods.  The Company monitors this ratio over time to assess the Company’s efficiency relative to its peers taking into account the Company’s branch expansion.  The Company uses this measure as one factor in determining if the Company is accomplishing its long-term goals of providing superior returns to the Company’s shareholders.

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Results of Operations

Summary

Consolidated Statements of Condition Information

	September 30, 2010		December 31, 2009		Percent Increase (Decrease)
	(Dollars in Thousands)
Assets	$	12,114,398	$	11,762,543	3.0	%
Net loans	5,414,570		5,571,869		(2.8	)
Deposits	7,462,212		7,178,007		4.0
Other borrowed funds	922,300		1,347,625		(31.6	)
Junior subordinated deferrable interest debentures	201,109		201,082		—
Shareholders’ equity	1,472,276		1,407,470		4.6

Consolidated Statements of Income Information

	Three Months Ended						Nine Months Ended
	September 30,				Percent		September 30,				Percent
	(Dollars in Thousands)				Increase		(Dollars in Thousands)				Increase
	2010		2009		(Decrease)		2010		2009		(Decrease)
Interest income	$	114,255	$	126,704	(9.8	)%	$	347,158	$	401,098	(13.4	)%
Interest expense	27,902		32,257		(13.5	)	87,472		108,978		(19.7	)
Net interest income	86,353		94,447		(8.6	)	259,686		292,120		(11.1	)
Provision for probable loan losses	6,837		10,346		(33.9	)	15,495		45,429		(65.9	)
Non-interest income	46,889		50,875		(7.8	)	167,886		149,079		12.6
Non-interest expense	79,379		78,746		.8		264,422		234,153		12.9
Net income available to common shareholders	30,263		33,723		(10.3	)	89,772		95,909		(6.4	)
Per common share (adjusted for stock dividends):
Basic	$	.45	$	.49	(8.2	)%	$	1.32	$	1.40	(5.7	)%
Diluted	.45		.49		(8.2	)	1.32		1.40		(5.7	)

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Net Income

Net income available to common shareholders for the third quarter of 2010 decreased by 10.3% and net income available to common shareholders for the nine months ended September 30, 2010 decreased by 6.4% as compared to the same periods in 2009.  Net income for the nine months ended September 30, 2010 was positively affected by gains on investment securities sales totaling $20 million, net of tax, that occurred in the first and second quarters.  The sales of the securities were to facilitate a re-positioning of the Company’s investment portfolio.  Net income was negatively affected by a dispute related to certain tax matters that were inherited by the Company in its 2004 acquisition of LFIN.  The dispute involves claims by the former controlling shareholders of LFIN related to approximately $14 million of tax refunds received by the Company based on deductions taken in 2003 by LFIN in connection with losses on loans acquired from a failed thrift and a dispute LFIN had with the FDIC regarding the tax benefits related to the failed thrift acquisition which originated in 1988.  On March 5, 2010, judgment was entered on a jury verdict rendered against the Company in the U.S. District Court for the Western District of Oklahoma.  Other than the tax refunds that are in dispute, the Company does not have any other disputes regarding tax refunds received by the Company in connection with the LFIN acquisition.  While judgment has been entered in the case, certain additional issues related to fees and other matters are to be determined by the Court in the future prior to the judgment becoming final and appealable.  Company management is currently reviewing the judgment, its implications and the Company’s intention to appeal, as well as, take other paths of action to mitigate the impact of the judgment.  The Company is disappointed with the judgment but believes it has a number of valid grounds for appeal which it intends to pursue. During the first quarter of 2010, the Company recorded an additional reserve of $14.2 million, after tax, related to this matter.  As of September 30, 2010, the Company has determined that the reserve currently established for this matter is still appropriate.  Management will continue to review the developments in this dispute and make appropriate adjustments to the amount reserved, as needed.

Net Interest Income

	Three Months Ended						Nine Months Ended
	September 30,				Percent		September 30,				Percent
	(in Thousands)				Increase		(in Thousands)				Increase
	2010		2009		(Decrease)		2010		2009		(Decrease)
Interest income:
Loans, including fees	$	77,037	$	84,263	(8.6	)%	$	236,417	$	252,105	(6.2	)%
Investment securities:
Taxable	33,665		40,937		(17.8	)	103,346		145,074		(28.8	)
Tax-exempt	1,897		1,375		38.0		5,314		3,454		53.9
Other interest income	1,656		129		1,183.7		2,081		465		347.5
Total interest income	114,255		126,704		(9.8	)	347,158		401,098		(13.4	)
Interest expense:
Savings deposits	2,210		2,563		(13.8	)	7,101		8,182		(13.2	)
Time deposits	11,298		14,757		(23.4	)	37,173		48,650		(23.6	)
Securities sold under repurchase agreements	11,005		11,110		(.9	)	33,292		33,622		(1.0	)
Other borrowings	317		732		(56.7	)	757		9,041		(91.6	)
Junior subordinated interest deferrable debentures	3,072		3,095		(.7	)	9,149		9,483		(3.5	)
Total interest expense	27,902		32,257		(13.5	)	87,472		108,978		(19.7	)
Net interest income	$	86,353	$	94,447	(8.6	)%	$	259,686	$	292,120	(11.1	)%

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Net interest income is the spread between income on interest earning assets, such as loans and securities, and the interest expense on liabilities used to fund those assets, such as deposits, repurchase agreements and funds borrowed.  Net interest income is the Company’s largest source of revenue and benefitted significantly from the reduction in the Federal Reserve prime interest rate in 2009.  The Federal Reserve Board influences the general market rates of interest, including the deposit and loan rates offered by many financial institutions.  The Company’s loan portfolio is significantly affected by changes in the prime interest rate.  The prime interest rate, which is the rate that loan rates are indexed from, ended 2007 at 7.25%.  During 2008, the prime interest rate decreased 400 basis points to end the year at 3.25% where it has remained as of September 30, 2010.  The Company’s goal is to manage the net interest income in periods of rising and falling rates.  Net interest income decreased 11.1% in the first nine months of 2010 compared to the same period in 2009 because of the sale of mortgage-backed securities, increasing liquidity, and the net interest margin returning to more traditional levels.  During the third quarter of 2010, the Internal Revenue Service refunded approximately $1.8 million in tax and $1.5 million in interest on the tax in connection with an adjustment in basis on prior lease-financing transactions where the Company’s lead bank subsidiary had received a Notice of Final Partnership Administrative Adjustments (“FPAA”).  The interest received on the tax refund was recognized in other interest income and the related tax was included as a credit to provision for income tax expense on the consolidated statement of income.

As part of its strategy to manage interest rate risk, the Company strives to manage both assets and liabilities so that interest sensitivities match. One method of calculating interest rate sensitivity is through gap analysis.  A gap is the difference between the amount of interest rate sensitive assets and interest rate sensitive liabilities that re-price or mature in a given time period.  Positive gaps occur when interest rate sensitive assets exceed interest rate sensitive liabilities, and negative gaps occur when interest rate sensitive liabilities exceed interest rate sensitive assets.  A positive gap position in a period of rising interest rates should have a positive effect on net interest income as assets will re-price faster than liabilities.  Conversely, net interest income should contract somewhat in a period of falling interest rates.  Management can change the Company’s interest rate position at any given point in time as market conditions dictate.  Additionally, interest rate changes do not affect all categories of assets and liabilities equally or at the same time.  Analytical techniques employed by the Company to supplement gap analysis include simulation analysis to quantify interest rate risk exposure.  The gap analysis prepared by management is reviewed by the Investment Committee of the Company twice a year (see table on page 32 for the September 30, 2010 gap analysis).  Management currently believes that the Company is properly positioned for interest rate changes; however if management determines at any time that the Company is not properly positioned, it will strive to adjust the interest rate sensitive assets and liabilities in order to manage the effect of interest rate changes.

Non-Interest Income

	Three Months Ended						Nine Months Ended
	September 30,				Percent		September 30,				Percent
	(in Thousands)				Increase		(in Thousands)				Increase
	2010		2009		(Decrease)		2010		2009		(Decrease)
Service charges on deposit accounts	$	25,613	$	25,425	.7	%	$	74,847	$	73,753	1.5	%
Other service charges, commissions and fees
Banking	11,787		10,513		12.1		35,574		31,781		11.9
Non-banking	2,607		5,485		(52.5	)	6,130		9,203		(33.4	)
Investment securities transactions, net	13		174		(92.5	)	30,850		11,880		159.7
Other investments, net	4,710		3,374		39.6		12,183		10,609		14.8
Other income	2,159		5,904		(63.4	)	8,302		11,853		(30.0	)
Total non-interest income	$	46,889	$	50,875	(7.8	)%	$	167,886	$	149,079	12.6	%

The increase in investment securities transactions for the nine months ended September 30, 2010 can be attributed to the sale of investment securities to facilitate the re-positioning of the Company’s investment portfolio.  Sales of investment securities also occurred in the three and nine months ended September 30, 2009, but were significantly less than securities sales for the same period of 2010.  The largest portion of securities sales for 2010 occurred in the first quarter.  Other income for the three and nine months ended September 30, 2009 was positively impacted by the sale of assets in a partnership where the lead-bank subsidiary held a majority interest resulting in income of $3.2 million.

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Non-Interest Expense

	Three Months Ended						Nine Months Ended
	September 30,				Percent		September 30,				Percent
	(in Thousands)				Increase		(in Thousands)				Increase
	2010		2009		(Decrease)		2010		2009		(Decrease)
Employee compensation and benefits	$	32,379	$	35,316	(8.3	)%	$	96,541	$	99,796	(3.3	)%
Occupancy	9,347		8,723		7.2		26,589		25,899		2.7
Depreciation of bank premises and equipment	8,770		8,965		(2.2	)	26,751		26,979		(.8	)
Professional fees	4,291		3,207		33.8		12,054		9,081		32.7
Deposit insurance assessments	2,475		1,751		41.3		7,687		7,654		.4
Stationery and supplies	952		1,109		(14.2	)	2,842		2,925		(2.8	)
Amortization of identified intangible assets	1,321		1,320		.1		3,946		3,950		(.1	)
Advertising	2,480		2,647		(6.3	)	7,547		7,887		(4.3	)
Litigation expense	34		—		100.0		21,837		—		100.0
Impairment charges (Total other-than-temporary impairment charges, $(55) less gain of ($586) and $3,989 less gain of $(4,003) included in other comprehensive income)	531		—		100.0		7,992		—		100.0
Other	16,799		15,708		(6.9	)	50,636		49,982		(1.3	)
Total non-interest expense	$	79,379	$	78,746	.8	%	$	264,422	$	234,153	12.9	%

Included in litigation expense is a reserve for a dispute related to certain tax deductions that were inherited by the Company’s 2004 acquisition of LFIN.  The dispute involves claims by the former controlling shareholders of LFIN related to approximately $14 million of tax refunds received by the Company based on deductions taken in 2003 by LFIN in connection with losses on loans acquired from a failed thrift and a dispute LFIN had with the FDIC regarding tax benefits related to the failed thrift acquisition, which originated in 1988.  The Company recorded an other-than-temporary impairment charge of $8.0 million on non-agency mortgage-backed securities, representing the credit related impairment on the securities.

Financial Condition

Allowance for Probable Loan Losses

The allowance for probable loan losses decreased 13.1% to $82,850,000 at September 30, 2010 from $95,393,000 at December 31, 2009.  The provision for probable loan losses charged to expense decreased 65.9% to $15,495,000 for the nine months ended September 30, 2010 from $45,429,000 for the same period in 2009.  The provision for probable loan losses is increased or decreased accordingly to ensure the adequacy of the allowance for probable loan losses.  As of September 30, 2010, management has determined that the allowance for probable loan losses is adequate relative to the risk inherent to the current loan portfolio.  The allowance for probable loan losses was 1.5% of total loans at September 30, 2010 and 1.7% at December 31, 2009.

Investment Securities

Investment securities increased by 11.2% to $5,166,625,000 at September 30, 2010, from $4,646,533,000 at December 31, 2009.  Investment securities are primarily residential mortgage-backed securities primarily issued by the Federal Home Loan Mortgage Corporation (“Freddie Mac”), Federal National Mortgage Association (“Fannie Mae”), and the Government National Mortgage Association (“Ginnie Mae”).  Investments in residential mortgage-backed securities issued by Ginnie Mae are fully guaranteed by the U.S. Government.  Investments in residential mortgage-backed securities issued by Freddie Mac and Fannie Mae are not fully guaranteed by the U.S. Government, but carry an implied AAA rating with limited credit risk, particularly given the placement of Fannie Mae and Freddie Mac into conservatorship by the federal government in early September 2008.

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Loans

Net loans decreased 2.8% to $5,414,570,000 at September 30, 2010, from $5,571,869,000 at December 31, 2009.  The decrease in loans can be attributed to the lack of demand for loans that the Company is experiencing as the result of the negative economic conditions.

Deposits

Deposits increased by 4.0% to $7,462,212,000 at September 30, 2010, from $7,178,007,000 at December 31, 2009.  The increase in deposits is the result of the Company’s strong internal sales programs, coupled with an increase in demand for conventional banking deposit products.  Even though the Company increased its deposits, the Company is still experiencing a substantial amount of competition for deposits at higher than market rates.  As a result, the Company has attempted to maintain certain deposit relationships but has allowed certain deposits to leave as the result of aggressive pricing.

Foreign Operations

On September 30, 2010, the Company had $12,114,398,000 of consolidated assets, of which approximately $250,110,000, or 2.1%, was related to loans outstanding to borrowers domiciled in foreign countries, compared to $280,485,000, or 2.4%, at December 31, 2009.  Of the $250,110,000, 82.2% is directly or indirectly secured by U.S. assets, certificates of deposits and real estate; 17.3% is secured by foreign real estate; and 0.5% is unsecured.

Critical Accounting Policies

The Company has established various accounting policies which govern the application of accounting principles in the preparation of the Company’s consolidated financial statements.  The significant accounting policies are described in the notes to the consolidated financial statements.  Certain accounting policies involve significant subjective judgments and assumptions by management which have a material impact on the carrying value of certain assets and liabilities; management considers such accounting policies to be critical accounting policies.

The Company considers its Allowance for Probable Loan Losses as a policy critical to the sound operations of the bank subsidiaries.  The allowance for probable loan losses consists of the aggregate loan loss allowances of the bank subsidiaries.  The allowances are established through charges to operations in the form of provisions for probable loan losses.  Loan losses or recoveries are charged or credited directly to the allowances.  The allowance for probable loan losses of each bank subsidiary is maintained at a level considered appropriate by management, based on estimated probable losses in the loan portfolio.  The allowance is derived from the following elements:  (i) allowances established on specific loans and (ii) allowances based on historical loss experience on the Company’s remaining loan portfolio, which includes general economic conditions and other qualitative risk factors both internal and external to the Company.  See also discussion regarding the allowance for probable loan losses and provision for probable loan losses included in the results of operations and “Provision and Allowance for Probable Loan Losses” included in Notes 1 and 5 of the notes to Consolidated Financial Statements in the Company’s latest Annual Report on Form 10-K for further information regarding the Company’s provision and allowance for probable loan losses policy.

Liquidity and Capital Resources

The maintenance of adequate liquidity provides the Company’s bank subsidiaries with the ability to meet potential depositor withdrawals, provide for customer credit needs, maintain adequate statutory reserve levels and take full advantage of high-yield investment opportunities as they arise.  Liquidity is afforded by access to financial markets and by holding appropriate amounts of liquid assets.  The Company’s bank subsidiaries derive their liquidity largely from deposits of individuals and business entities.  Deposits from persons and entities domiciled in Mexico comprise a stable portion of the deposit base of the Company’s bank subsidiaries. Other important funding sources for the Company’s bank subsidiaries during 2010 and 2009 were borrowings from FHLB, securities sold under repurchase agreements and large certificates of deposit, requiring management to closely monitor its asset/liability mix in terms of both rate sensitivity and maturity distribution.  Primary liquidity of the Company and its subsidiaries has been maintained by means of increased investment in shorter-term securities, certificates of deposit and repurchase agreements.  As in the past, the Company will continue to monitor the volatility and cost of funds in an attempt to match maturities of rate-sensitive assets and liabilities and respond accordingly to anticipated fluctuations in interest rates over reasonable periods of time.

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The Company maintains an adequate level of capital as a margin of safety for its depositors and shareholders.  At September 30, 2010, shareholders’ equity was $1,472,276,000 compared to $1,407,470,000 at December 31, 2009, an increase of $64,806,000, or 4.6%.  The increase is primarily due to the retention of earnings, offset by dividends paid to the preferred and common shareholders.

The Company had a leverage ratio of 12.02% and 10.95%, risk-weighted Tier 1 capital ratio of 18.79% and 17.74% and risk-weighted total capital ratio of 20.02% and 18.99% at September 30, 2010 and December 31, 2009, respectively.  The identified intangibles and goodwill of $301,085,000 as of September 30, 2010, recorded in connection with the Company’s acquisitions, are deducted from the sum of core capital elements when determining the capital ratios of the Company.

As in the past, the Company will continue to monitor the volatility and cost of funds in an attempt to match maturities of rate-sensitive assets and liabilities, and respond accordingly to anticipate fluctuations in interest rates by adjusting the balance between sources and uses of funds as deemed appropriate.  The net-interest rate sensitivity as of September 30, 2010 is illustrated in the table on the following page.  This information reflects the balances of assets and liabilities for which rates are subject to change.  A mix of assets and liabilities that are roughly equal in volume and re-pricing characteristics represents a matched interest rate sensitivity position.  Any excess of assets or liabilities results in an interest rate sensitivity gap.

The Company undertakes an interest rate sensitivity analysis to monitor the potential risk on future earnings resulting from the impact of possible future changes in interest rates on currently existing net asset or net liability positions.  However, this type of analysis is as of a point-in-time position, when in fact that position can quickly change as market conditions, customer needs, and management strategies change. Thus, interest rate changes do not affect all categories of asset and liabilities equally or at the same time.  As indicated in the table, the Company is liability sensitive during the early time periods and asset sensitive in the longer periods.  The Company’s Asset and Liability Committee semi-annually reviews the consolidated position along with simulation and duration models, and makes adjustments as needed to control the Company’s interest rate risk position.  The Company uses modeling of future events as a primary tool for monitoring interest rate risk.

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Interest Rate Sensitivity

(Dollars in Thousands)

	Rate/Maturity
September 30, 2010	3 Months or Less			Over 3 Months to 1 Year			Over 1 Year to 5 Years		Over 5 Years			Total
Rate sensitive assets
Investment securities	$	504,313		$	1,302,541		$	3,346,563	$	13,208		$	5,166,625
Loans, net of non-accruals	4,121,921			191,012			387,126		722,610			5,422,669
Total earning assets	$	4,626,234		$	1,493,553		$	3,733,689	$	735,818		$	10,589,294
Cumulative earning assets	$	4,626,234		$	6,119,787		$	9,853,476	$	10,589,294
Rate sensitive liabilities
Time deposits	$	1,441,518		$	1,639,459		$	341,647	$	553		$	3,423,177
Other interest bearing deposits	2,466,496			—			—		—			2,466,496
Securities sold under repurchase agreements	434,842			42,603			655		1,000,000			1,478,100
Other borrowed funds	922,300			—			—		—			922,300
Junior subordinated deferrable interest debentures	61,858			—			128,868		10,383			201,109
Total interest bearing liabilities	$	5,327,014		$	1,682,062		$	471,170	$	1,010,936		$	8,491,182
Cumulative sensitive liabilities	$	5,327,014		$	7,009,076		$	7,480,246	$	8,491,182
Repricing gap	$	(700,780	)	$	(188,509	)	$	3,262,519	$	(275,118	)	$	2,098,112
Cumulative repricing gap	(700,780		)	(889,289		)	2,373,230		2,098,112
Ratio of interest-sensitive assets to liabilities	.87			.89			7.92		.73			1.25
Ratio of cumulative, interest-sensitive assets to liabilities	.87			.87			1.32		1.25

Item 3.  Quantitative and Qualitative Disclosures about Market Risk

During the first nine months of 2010, there were no material changes in market risk exposures that affected the quantitative and qualitative disclosures regarding market risk presented under the caption “Liquidity and Capital Resources” located on pages 18 through 24 of the Company’s 2009 Annual Report as filed as an exhibit to the Company’s Form 10-K for the year ended December 31, 2009.

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Item 4.  Controls and Procedures

Disclosure Controls and Procedures

The Company maintains disclosure controls and procedures designed to ensure that information required to be disclosed in reports filed under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported within specified time periods.  As of the end of the period covered by this Quarterly Report on Form 10-Q, the Company’s principal executive officer and principal financial officer evaluated, with the participation of the Company’s management, the effectiveness of the Company’s disclosure controls and procedures (as defined in Exchange Act rules 13a-15(e) and 15d-15(e)).  Based on the evaluation, which disclosed no material weaknesses, the Company’s principal executive officer and principal financial officer concluded that the Company’s disclosure controls and procedures were effective as of the end of the period covered by this report.

Internal Control Over Financial Reporting

There were no changes in the Company’s internal control over financial reporting that occurred during the Company’s most recent fiscal quarter that have materially affected or are reasonably likely to materially affect the Company’s internal control over financial reporting.

PART II - OTHER INFORMATION

Item 1.  Legal Proceedings

The Company is involved in various legal proceedings that are in various stages of litigation.  Some of these actions allege “lender liability” claims on a variety of theories and claim substantial actual and punitive damages.  The Company has determined, based on discussions with its counsel that any material loss in such actions, individually or in the aggregate, is remote or the damages sought, even if fully recovered, would not be considered material to the consolidated financial position or results of operations of the Company.  However, many of these matters are in various stages of proceedings and further developments could cause management to revise its assessment of these matters.

The Company is involved in a dispute related to certain tax matters that were inherited by the Company in its 2004 acquisition of LFIN.  The dispute involves claims by the former controlling shareholders of LFIN related to approximately $14 million of tax refunds received by the Company based on deductions taken in 2003 by LFIN in connection with losses on loans acquired from a failed thrift and a dispute LFIN had with the FDIC regarding the tax benefits related to the failed thrift acquisition which originated in 1988.  On March 5, 2010, judgment was entered on a jury verdict rendered against the Company in the U.S. District Court for the Western District of Oklahoma (the “Court”).  Other than the tax refunds that are in dispute, the Company does not have any other disputes regarding tax refunds received by the Company in connection with the LFIN acquisition.  While judgment has been entered in the case, certain additional issues related to fees and other matters are to be determined by the Court in the future prior to the judgment becoming final and appealable.  Company management is currently reviewing the judgment, its implications and the Company’s intention to appeal, as well as take other paths of action to mitigate the impact of the judgment.  The Company is disappointed with the judgment but believes it has a number of valid grounds for appeal which it intends to pursue. During the first quarter of 2010, the Company recorded an additional reserve of $21.8 million related to this matter.  As of September 30, 2010, the Company has determined that the established reserve for this matter is still appropriate.  Management will continue to review the developments in this dispute and make appropriate adjustments to the amount reserved, as needed.

In October 2010, the Company was named as a defendant in two purported class-action lawsuits, including one filed in the United States District Court for the Southern District of Texas and one filed in the United States District Court for the Southern District of Florida where similar lawsuits against a number of other banks are currently pending in a multi-district proceeding known as “In re Checking Account Overdraft Litigation.” The lawsuits challenge the manner in which IBC assesses and collects overdraft fees on ATM and debit transactions and IBC’s policies related to posting order. These cases are in early stages, with no responsive pleadings or motions having been filed. No class has been certified in either case. At this state of the lawsuits, the Company cannot determine the probability of a material adverse result or reasonably estimate a range of potential exposures, if any. The Company intends to defend the actions vigorously.

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1A. Risk Factors

There were no material changes in the risk factors as previously disclosed in Item 1A to Part I of the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2009, except for the following additional risk factor:

The Dodd-Frank Regulatory Reform Act could negatively impact the revenue streams of the Company related to interchange fees and consumer services.

The Dodd-Frank Reform Act authorizes the Federal Reserve to regulate interchange fees paid to banks on debit card transactions to ensure that they are reasonable and proportional to the cost of processing individual transactions, and prohibits debit card networks and issuers from requiring transactions to be processed on a single payment network.  The impact of these provisions on the Company’s revenue from interchange fees is uncertain at this time and will depend upon Federal Reserve implementing regulations.  The Reform Act also creates a Consumer Finance Protection Bureau.  While banks with less than $10 billion in assets, such as the subsidiary banks of the Company, are exempt from the primary examination, and enforcement powers of the CFPA, it is expected that the new agency’s rulemaking will affect all banks.  The impact of the CFPA is uncertain at this time, but the initiatives of the CFPA could negatively impact revenue streams of the Company related to consumer services.

Item 2.  Unregistered Sales of Equity Securities and Use of Proceeds

From time to time, the Company’s Board of Directors has authorized stock repurchase plans.  The Company terminated its stock repurchase program on December 19, 2008, in connection with participating in the TARP Capital Purchase Program, which program prohibited stock repurchases, except for repurchases made in connection with the administration of an employee benefit plan in the ordinary course of business and consistent with past practices.  On April 7, 2009, the Company obtained consent from the Treasury to repurchase shares of the Company’s common stock; provided, however, that in no event will the aggregate amount of cash dividends and common stock repurchases for a given semi-annual period exceed the aggregate amount that would be used to pay the originally permitted semi-annual cash dividend of $.33 per share.  The Company also received consent from the Treasury to pay quarterly dividends.  The Company will determine on an ongoing basis the best use of the funds and whether a more frequent dividend program and expanded repurchase program are warranted and beneficial to its shareholders.   Following receipt of the Treasury Department’s consent, the Board of Directors established a formal stock repurchase program that authorized the repurchase of up to $40 million of common stock within the following twelve months and on March 9, 2010, the Board of Directors extended the repurchase program and again authorized the repurchase of up to $40 million of common stock during the twelve month period expiring on April 9, 2011, which repurchase cap the Board is inclined to increase over time, subject to the limitations imposed by the Treasury Department’s consent.  Stock repurchases may be made from time to time, on the open market or through private transactions.  During the third quarter, the Company’s Board of Directors adopted a Rule 10b5-1 plan and intends to adopt additional Rule 10b5-1 trading plans that will allow the Company to purchase its shares of common stock during certain trading blackout periods when the Company ordinarily would not be in the market due to trading restrictions in its internal trading policy.  Shares repurchased in this program will be held in treasury for reissue for various corporate purposes, including employee stock option plans.  As of October 25, 2010, a total of 7,311,156 shares had been repurchased under all programs at a cost of $257,467,000.  The Company is not obligated to repurchase shares under its stock purchase program or to enter into additional Rule 10b5-1 plans.  The timing, actual number and value of shares purchased will depend on many factors, including the Company’s cash flow and the liquidity and price performance of its shares of common stock.

Except for repurchases in connection with the administration of an employee benefit plan in the ordinary course of business and consistent with past practices, common stock repurchases are only conducted under publicly announced repurchase programs approved by the Board of Directors.  The following table includes information about common stock share repurchases for the quarter ended September 30, 2010.

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	Total Number of Shares Purchased	Average Price Paid Per Share	Shares Purchased as Part of a Publicly- Announced Program	Approximate Dollar Value of Shares Available for Repurchase (1)
July 1 — July 31, 2010	85,000	16.35	85,000	$	35,947,000
August 1 — August 31, 2010	124,400	15.97	124,400	33,960,000
September 1 — September 30, 2010	27,872	16.28	27,872	33,506,000
	237,272	16.14	237,272

(1) The repurchase program was extended on March 9, 2010 and allows for the repurchase of up to an additional $40,000,000 of treasury stock through April 9, 2011.

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Item 6.  Exhibits

The following exhibits are filed as a part of this Report:

31(a) —Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

31(b) —Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

32(a) —Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

32(b) —Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

101++ — Interactive Data File

++Attached as Exhibit 101 to this report are the following documents formatted in XBRL (Extensible Business Reporting Language):  (i) the Condensed Consolidated Statement of Earnings for the three and nine months ended September 30, 2010 and 2009, (ii) the Condensed Consolidated Balance Sheet as of September 30, 2010 and December 31, 2009, and (iii) the Condensed Consolidated Statement of Cash Flows for the nine months ended September 30, 2010 and 2009.  Users of this data are advised pursuant to Rule 406T of Regulation S-T that this interactive data file is deemed not filed or part of a registration statement or prospectus for purposes of sections 11 or 12 of the Securities Act of 1933, is deemed not filed for purposes of section 18 of the Securities and Exchange Act of 1934, and otherwise is not subject to liability under these sections.

36

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		INTERNATIONAL BANCSHARES CORPORATION
Date:	November 1, 2010	/s/ Dennis E. Nixon
		Dennis E. Nixon
		President
Date:	November 1, 2010	/s/ Imelda Navarro
		Imelda Navarro
		Treasurer

37

EX-31.A

Exhibit 31(a)

Certification of Chief Executive Officer

pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Dennis E. Nixon, certify that:

1.I have reviewed this report on form 10-Q of International Bancshares Corporation;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 1, 2010
	/s/ Dennis E. Nixon
	Dennis E. Nixon
	President (Chief Executive Officer)

EX-31.B

Exhibit 31(b)

Certification of Chief Financial Officer

pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Imelda Navarro, certify that:

1.I have reviewed this report on form 10-Q of International Bancshares Corporation;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 1, 2010
	/s/ Imelda Navarro
	Imelda Navarro
	Treasurer (Chief Financial Officer)

EX-32.A

Exhibit 32(a)

CERTIFICATION PURSUANT TO

18 U.S.C. 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of International Bancshares Corporation (the “Company”) on Form 10-Q for the period ended September 30, 2010, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Dennis E. Nixon, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1)The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)), as applicable; and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

By:	/s/ Dennis E. Nixon
	Dennis E. Nixon
	President
Date:	November 1, 2010

The foregoing certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. 1350, and not being filed for purposes of Section 18 of the Securities Exchange Act, as amended, and is not to be incorporated by reference into any filing of the Company, whether on and before or after the date hereof, regardless of any general incorporation language in such filing.

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.B

Exhibit 32(b)

CERTIFICATION PURSUANT TO

18 U.S.C. 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of International Bancshares Corporation (the “Company”) on Form 10-Q for the period ended September 30, 2010 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Imelda Navarro, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1)The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)), as applicable; and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

By:	/s/ Imelda Navarro
	Imelda Navarro
	Treasurer
Date:	November 1, 2010

The foregoing certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. 1350, and not being filed for purposes of Section 18 of the Securities Exchange Act, as amended, and is not to be incorporated by reference into any filing of the Company, whether on and before or after the date hereof, regardless of any general incorporation language in such filing.

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.