10-Q

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

þ Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended November 19, 2011, or

o Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from                      to                     .

Commission file number 1-10714

AUTOZONE, INC.

(Exact name of registrant as specified in its charter)

Nevada (State or other jurisdiction of incorporation or organization)	62-1482048 (I.R.S. Employer Identification No.)
123 South Front Street, Memphis, Tennessee (Address of principal executive offices)	38103 (Zip Code)

(901) 495-6500
(Registrant’s telephone number, including area code)

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 periods that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes þ No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, 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 þ No o

Indicate by check mark whether 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. (Check one):

Large accelerated filer þ Accelerated filer o Non-accelerated filer o Smaller reporting company o

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

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

Common Stock, $.01 Par Value — 39,359,829 shares outstanding as of December 12, 2011.

TABLE OF CONTENTS

PART I. FINANCIAL INFORMATION	3
Item 1. Financial Statements	3
CONDENSED CONSOLIDATED BALANCE SHEETS	3
CONDENSED CONSOLIDATED STATEMENTS OF INCOME	4
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS	5
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS	6
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM	12
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	13
Item 3. Quantitative and Qualitative Disclosures About Market Risk	19
Item 4. Controls and Procedures	19
Item 4T. Controls and Procedures	19
PART II. OTHER INFORMATION	20
Item 1. Legal Proceedings	20
Item 1A. Risk Factors	20
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	21
Item 3. Defaults Upon Senior Securities	21
Item 4. Removed and Reserved	21
Item 5. Other Information	21
Item 6. Exhibits	22
SIGNATURES	23
EXHIBIT INDEX	24
Exhibit 12.1
Exhibit 15.1
Exhibit 31.1
Exhibit 31.2
Exhibit 32.1
Exhibit 32.2
EX-101 INSTANCE DOCUMENT
EX-101 SCHEMA DOCUMENT
EX-101 CALCULATION LINKBASE DOCUMENT
EX-101 LABELS LINKBASE DOCUMENT
EX-101 PRESENTATION LINKBASE DOCUMENT
EX-101 DEFINITION LINKBASE DOCUMENT

2

PART I. FINANCIAL INFORMATION

Item 1. Financial Statements.

AUTOZONE, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)

	November 19,			August 27,
(in thousands)	2011			2011
Assets
Current assets:
Cash and cash equivalents	$	96,676		$	97,606
Accounts receivable		135,695			140,690
Merchandise inventories		2,531,210			2,466,107
Other current assets		79,092			88,022
Total current assets		2,842,673			2,792,425
Property and equipment:
Property and equipment		4,408,429			4,371,872
Less: Accumulated depreciation and amortization		(1,741,324	)		(1,702,997	)
		2,667,105			2,668,875
Goodwill		302,645			302,645
Deferred income taxes		19,312			10,661
Other long-term assets		100,845			94,996
		422,802			408,302
	$	5,932,580		$	5,869,602
Liabilities and Stockholders’ Deficit
Current liabilities:
Accounts payable	$	2,843,741		$	2,755,853
Accrued expenses and other		444,538			449,327
Income taxes payable		85,222			25,185
Deferred income taxes		170,048			166,449
Short-term borrowings		35,417			34,082
Total current liabilities		3,578,966			3,430,896
Long-term debt		3,318,900			3,317,600
Other long-term liabilities		381,813			375,338
Commitments and contingencies		—			—
Stockholders’ deficit:
Preferred stock, authorized 1,000 shares; no shares issued		—			—
Common stock, par value $.01 per share, authorized 200,000 shares; 44,245 shares issued and 39,316 shares outstanding as of November 19, 2011; 44,084 shares issued and 40,109 shares outstanding as of August 27, 2011		442			441
Additional paid-in capital		628,109			591,384
Retained deficit		(452,873	)		(643,998	)
Accumulated other comprehensive loss		(130,644	)		(119,691	)
Treasury stock, at cost		(1,392,133	)		(1,082,368	)
Total stockholders’ deficit		(1,347,099	)		(1,254,232	)
	$	5,932,580		$	5,869,602

See Notes to Condensed Consolidated Financial Statements.

3

AUTOZONE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(Unaudited)

	Twelve Weeks Ended
	November 19,		November 20,
(in thousands, except per share data)	2011		2010
Net sales	$	1,924,341	$	1,791,662
Cost of sales, including warehouse and delivery expenses		940,714		883,914
Gross profit		983,627		907,748
Operating, selling, general and administrative expenses		642,693		601,627
Operating profit		340,934		306,121
Interest expense, net		39,094		37,253
Income before income taxes		301,840		268,868
Income taxes		110,715		96,792
Net income	$	191,125	$	172,076
Weighted average shares for basic earnings per share		39,865		44,669
Effect of dilutive stock equivalents		999		965
Adjusted weighted average shares for diluted earnings per share		40,864		45,634
Basic earnings per share	$	4.79	$	3.85
Diluted earnings per share	$	4.68	$	3.77

See Notes to Condensed Consolidated Financial Statements.

4

AUTOZONE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

	Twelve Weeks Ended
	November 19,			November 20,
(in thousands)	2011			2010
Cash flows from operating activities:
Net income	$	191,125		$	172,076
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of property and equipment		48,647			44,291
Amortization of debt origination fees		1,738			1,725
Income tax benefit from exercise of stock options		(11,157	)		(8,994	)
Deferred income taxes		6,241			5,454
Share-based compensation expense		7,562			5,071
Changes in operating assets and liabilities:
Accounts receivable		4,856			9,622
Merchandise inventories		(75,122	)		(49,303	)
Accounts payable and accrued expenses		87,317			78,929
Income taxes payable		70,891			88,961
Other, net		10,196			9,521
Net cash provided by operating activities		342,294			357,353
Cash flows from investing activities:
Capital expenditures		(61,924	)		(45,811	)
Purchase of marketable securities		(11,091	)		(9,923	)
Proceeds from sale of marketable securities		10,069			7,337
Disposal of capital assets		1,057			526
Net cash used in investing activities		(61,889	)		(47,871	)
Cash flows from financing activities:
Net proceeds (payments) of commercial paper		1,300			(337,300	)
Net proceeds from short-term borrowings		4,496			5,738
Proceeds from issuance of debt		—			500,000
Repayment of debt		—			(199,300	)
Net proceeds from sale of common stock		18,561			21,952
Purchase of treasury stock		(309,765	)		(299,655	)
Income tax benefit from exercise of stock options		11,157			8,994
Payments of capital lease obligations		(6,448	)		(5,131	)
Other, net		—			(5,450	)
Net cash used in financing activities		(280,699	)		(310,152	)
Effect of exchange rate changes on cash		(636	)		403
Net decrease in cash and cash equivalents		(930	)		(267	)
Cash and cash equivalents at beginning of period		97,606			98,280
Cash and cash equivalents at end of period	$	96,676		$	98,013

See Notes to Condensed Consolidated Financial Statements.

5

AUTOZONE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Note A — General

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles for interim financial information and with instructions to Form 10-Q and Article 10 of Regulation S-X of the Securities and Exchange Commission’s (the “SEC”) rules and regulations. Accordingly, they do not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments, including normal recurring accruals, considered necessary for a fair presentation have been included. For further information, refer to the consolidated financial statements and related notes included in the AutoZone, Inc. (“AutoZone” or the “Company”) Annual Report on Form 10-K for the year ended August 27, 2011.

Operating results for the twelve weeks ended November 19, 2011, are not necessarily indicative of the results that may be expected for the fiscal year ending August 25, 2012. Each of the first three quarters of AutoZone’s fiscal year consists of 12 weeks, and the fourth quarter consists of 16 or 17 weeks. The fourth quarters for fiscal 2011 and fiscal 2012 each have 16 weeks. Additionally, the Company’s business is somewhat seasonal in nature, with the highest sales generally occurring during the months of February through September and the lowest sales generally occurring in the months of December and January.

Note B — Share-Based Payments

AutoZone recognizes compensation expense for share-based payments based on the fair value of the awards at the grant date. Share-based payments include stock option grants, restricted stock grants, restricted stock unit grants and the discount on shares sold to employees under share purchase plans. Additionally, directors’ fees are paid in restricted stock units with value equivalent to the value of shares of common stock as of the grant date. The change in fair value of liability-based stock awards is also recognized in share-based compensation expense.

Total share-based compensation expense (a component of Operating, selling, general and administrative expenses) was $7.6 million for the twelve week period ended November 19, 2011, and was $5.1 million for the comparable prior year period.

During the twelve week period ended November 19, 2011, 162,510 shares of stock options were exercised at a weighted average exercise price of $118.12. In the comparable prior year period, 218,666 shares of stock options were exercised at a weighted average exercise price of $104.16.

During the twelve week period ended November 19, 2011, the Company made stock option grants of 375,630 shares. The Company granted options to purchase 423,520 shares during the comparable prior year period. The weighted average fair value of the stock option awards granted during the twelve week periods ended November 19, 2011 and November 20, 2010, using the Black-Scholes-Merton multiple-option pricing valuation model, was $93.04 and $58.53 per share, respectively, using the following weighted average key assumptions:

	Twelve Weeks Ended
	November 19,			November 20,
	2011			2010
Expected price volatility		31	%		31	%
Risk-free interest rate		0.7	%		1.0	%
Weighted average expected lives (in years)		5.3			4.3
Forfeiture rate		10	%		10	%
Dividend yield		0	%		0	%

See AutoZone’s Annual Report on Form 10-K for the year ended August 27, 2011 for a discussion regarding the methodology used in developing AutoZone’s assumptions to determine the fair value of the option awards and a description of AutoZone’s 2011 Equity Incentive Award Plan and the 2011 Director Compensation Program.

For the twelve week period ended November 19, 2011, 372,170 stock options were excluded from the diluted earnings per share computation because they would have been anti-dilutive. For the comparable prior year period, no anti-dilutive shares were excluded from the diluted earnings per share computation.

6

Note C — Fair Value Measurements

The Company defines fair value as the price received to transfer an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company uses a hierarchy of valuation inputs to measure fair value.

The hierarchy prioritizes the inputs into three broad levels:

Level 1 inputs—unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access. An active market for the asset or liability is one in which transactions for the asset or liability occur with sufficient frequency and volume to provide ongoing pricing information.

Level 2 inputs—inputs other than quoted market prices included in Level 1 that are observable, either directly or indirectly, for the asset or liability. Level 2 inputs include, but are not limited to, quoted prices for similar assets or liabilities in an active market, quoted prices for identical or similar assets or liabilities in markets that are not active and inputs other than quoted market prices that are observable for the asset or liability, such as interest rate curves and yield curves observable at commonly quoted intervals, volatilities, credit risk and default rates.

Level 3 inputs—unobservable inputs for the asset or liability.

Financial Assets & Liabilities Measured at Fair Value on a Recurring Basis

The Company’s assets and liabilities measured at fair value on a recurring basis were as follows:

	November 19, 2011
(in thousands)	Level 1		Level 2		Level 3		Fair Value
Other current assets	$	13,046	$	—	$	—	$	13,046
Other long-term assets		55,674		5,835		—		61,509
	$	68,720	$	5,835	$	—	$	74,555

	August 27, 2011
(in thousands)	Level 1		Level 2		Level 3		Fair Value
Other current assets	$	11,872	$	—	$	—	$	11,872
Other long-term assets		55,390		5,869		—		61,259
	$	67,262	$	5,869	$	—	$	73,131

At November 19, 2011, the fair value measurement amounts for assets and liabilities recorded in the accompanying Condensed Consolidated Balance Sheet consisted of short-term marketable securities of $13.0 million, which are included within Other current assets, and long-term marketable securities of $61.5 million, which are included in Other long-term assets. The Company’s marketable securities are typically valued at the closing price in the principal active market as of the last business day of the quarter or through the use of other market inputs relating to the securities, including benchmark yields and reported trades. The fair values of the marketable securities, by asset class, are described in “Note D — Marketable Securities”.

Non-Financial Assets measured at Fair Value on a Non-Recurring Basis

Non-financial assets could be required to be measured at fair value on a non-recurring basis in certain circumstances, including the event of impairment. The assets could include assets acquired in an acquisition as well as property, plant and equipment that are determined to be impaired. During the twelve week periods ended November 19, 2011 and November 20, 2010, the Company did not have any significant non-financial assets measured at fair value on a non-recurring basis in periods subsequent to initial recognition.

Financial Instruments not Recognized at Fair Value

The Company has financial instruments, including cash and cash equivalents, accounts receivable, other current assets and accounts payable. The carrying amounts of these financial instruments approximate fair value because of their short maturities. A discussion of the carrying values and fair values of the Company’s debt is included in “Note H — Financing”.

7

Note D — Marketable Securities

The Company’s basis for determining the cost of a security sold is the “Specific Identification Model”. Unrealized gains (losses) on marketable securities are recorded in Accumulated other comprehensive loss. The Company’s available-for-sale marketable securities consisted of the following:

	November 19, 2011
	Amortized		Gross		Gross
	Cost		Unrealized		Unrealized
(in thousands)	Basis		Gains		Losses			Fair Value
Corporate securities	$	27,030	$	146	$	(136	)	$	27,040
Government bonds		30,516		259		(18	)		30,757
Mortgage-backed securities		3,069		23		—			3,092
Asset-backed securities and other		13,604		70		(8	)		13,666
	$	74,219	$	498	$	(162	)	$	74,555

	August 27, 2011
	Amortized		Gross		Gross
	Cost		Unrealized		Unrealized
(in thousands)	Basis		Gains		Losses			Fair Value
Corporate securities	$	26,261	$	229	$	(45	)	$	26,445
Government bonds		29,464		343		—			29,807
Mortgage-backed securities		4,291		55		—			4,346
Asset-backed securities and other		12,377		156		—			12,533
	$	72,393	$	783	$	(45	)	$	73,131

The debt securities held at November 19, 2011, had effective maturities ranging from less than one year to approximately 3 years. The Company did not realize any material gains or losses on its marketable securities during the twelve week period ended November 19, 2011.

The Company holds twenty-seven securities that are in an unrealized loss position of approximately $162 thousand at November 19, 2011. The Company has the intent and ability to hold these investments until recovery of fair value or maturity, and does not deem the investments to be impaired on an other than temporary basis. In evaluating whether the securities are deemed to be impaired on an other than temporary basis, the Company considers factors such as the duration and severity of the loss position, the credit worthiness of the investee, the term to maturity and the intent and ability to hold the investments until maturity or until recovery of fair value.

Note E — Derivative Financial Instruments

During the first quarter of fiscal 2011, the Company was party to three forward starting swaps, of which two were entered into during the fourth quarter of fiscal 2010 and one was entered into during the first quarter of fiscal 2011. These agreements were designated as cash flow hedges and were used to hedge the exposure to variability in future cash flows resulting from changes in variable interest rates related to the $500 million Senior Note debt issuance during the first quarter of fiscal 2011. The swaps had notional amounts of $150 million, $150 million and $100 million with associated fixed rates of 3.15%, 3.13%, and 2.57%, respectively. The swaps were benchmarked based on the 3-month London InterBank Offered Rate (“LIBOR”). These swaps expired in November 2010 and resulted in a loss of $11.7 million, which has been deferred in Accumulated other comprehensive loss and will be reclassified to Interest expense over the life of the underlying debt. The hedges remained highly effective until they expired; therefore, no ineffectiveness was recognized in earnings.

At November 19, 2011, the Company had $4.2 million recorded in Accumulated other comprehensive loss related to net realized losses associated with terminated interest rate swap derivatives which were designated as hedges. Net losses are amortized into Interest expense over the remaining life of the associated debt. During the twelve week period ended November 19, 2011, the Company reclassified $406 thousand of net losses from Accumulated other comprehensive loss to Interest expense. In the comparable prior year period, the Company reclassified $43 thousand of net losses from Accumulated other comprehensive loss to Interest expense. The Company expects to reclass $1.7 million of net losses from Accumulated other comprehensive loss to Interest expense over the next 12 months.

Note F — Merchandise Inventories

Inventories are stated at the lower of cost or market using the last-in, first-out (“LIFO”) method for domestic inventories and the first-in, first-out (“FIFO”) method for Mexico inventories. Included in inventories are related purchasing, storage and handling costs. Due to price deflation on the Company’s merchandise purchases, the Company’s domestic inventory balances are effectively maintained under the FIFO method. The Company’s policy is not to write up inventory in excess of replacement cost. The cumulative balance of this unrecorded adjustment, which will be reduced upon experiencing price inflation on the Company’s merchandise purchases, was $255.0 million at November 19, 2011, and $253.3 million at August 27, 2011.

8

Note G — Pension and Savings Plans

The components of net periodic pension expense related to the Company’s pension plans consisted of the following:

	Twelve Weeks Ended
	November 19,			November 20,
(in thousands)	2011			2010
Interest cost	$	2,819		$	2,678
Expected return on plan assets		(2,704	)		(2,181	)
Amortization of net loss		2,260			2,653
Net periodic pension expense	$	2,375		$	3,150

The Company makes contributions in amounts at least equal to the minimum funding requirements of the Employee Retirement Income Security Act of 1974, as amended by the Pension Protection Act of 2006. During the twelve week period ended November 19, 2011, the Company made contributions to its funded plan in the amount of $1.3 million. The Company expects to contribute approximately $5.4 million to the plan during the remainder of fiscal 2012; however, a change to the expected cash funding may be impacted by a change in interest rates or a change in the actual or expected return on plan assets.

Note H — Financing

The Company’s long-term debt consisted of the following:

	November 19,		August 27,
(in thousands)	2011		2011
5.875% Senior Notes due October 2012, effective interest rate of 6.33%	$	300,000	$	300,000
4.375% Senior Notes due June 2013, effective interest rate of 5.65%		200,000		200,000
6.500% Senior Notes due January 2014, effective interest rate of 6.63%		500,000		500,000
5.750% Senior Notes due January 2015, effective interest rate of 5.89%		500,000		500,000
5.500% Senior Notes due November 2015, effective interest rate of 4.86%		300,000		300,000
6.950% Senior Notes due June 2016, effective interest rate of 7.09%		200,000		200,000
7.125% Senior Notes due August 2018, effective interest rate of 7.28%		250,000		250,000
4.000% Senior Notes due November 2020, effective interest rate of 4.43%		500,000		500,000
Commercial paper, weighted average interest rate of 0.37% and 0.35% at November 19, 2011 and August 27, 2011, respectively		568,900		567,600
	$	3,318,900	$	3,317,600

As of November 19, 2011, the commercial paper borrowings and the 5.875% Senior Notes due October 2012 mature in the next twelve months, but are classified as long-term in the accompanying Condensed Consolidated Balance Sheets, as the Company has the ability and intent to refinance them on a long-term basis. Specifically, excluding the effect of commercial paper borrowings, the Company had $996.6 million of availability under its $1.0 billion revolving credit facility, expiring in September 2016, which would allow it to replace these short-term obligations with long-term financing.

In addition to the long-term debt discussed above, as of November 19, 2011, the Company had $35.4 million of short-term borrowings that are scheduled to mature in the next 12 months. The short-term borrowings are unsecured, peso-denominated borrowings and accrued interest at 4.53% as of November 19, 2011.

In September 2011, the Company amended and restated its $800 million revolving credit facility, which was scheduled to expire in July 2012. The capacity under the revolving credit facility was increased to $1.0 billion. This credit facility is available to primarily support commercial paper borrowings, letters of credit and other short-term unsecured bank loans. The capacity of the credit facility may be increased to $1.250 billion prior to the maturity date at the Company’s election and subject to bank credit capacity and approval, may include up to $200 million in letters of credit, and may include up to $175 million in capital leases each fiscal year. Under the revolving credit facility, the Company may borrow funds consisting of Eurodollar loans or base rate loans. Interest accrues on Eurodollar loans at a defined Eurodollar rate, defined as LIBOR plus the applicable percentage, as defined in the revolving credit facility, depending upon the Company’s senior, unsecured, (non-credit enhanced) long-term debt rating. Interest accrues on base rate loans as defined in the credit facility. The Company also has the option to borrow funds under the terms of a swingline loan subfacility. The revolving credit facility expires in September 2016.

On November 15, 2010, the Company issued $500 million in 4.000% Senior Notes due 2020 under the Company’s shelf registration statement filed with the SEC on July 29, 2008 (the “Shelf Registration”). The Shelf Registration allows the Company to sell an indeterminate amount in debt securities to fund general corporate purposes, including repaying, redeeming or repurchasing outstanding debt and for working capital, capital expenditures, new store openings, stock repurchases and acquisitions. The Company used the proceeds from the issuance of debt to repay the principal due relating to the $199.3 million in 4.750% Senior Notes that matured on November 15, 2010, to repay a portion of the commercial paper borrowings and for general corporate purposes.

9

The fair value of the Company’s debt was estimated at $3.609 billion as of November 19, 2011, and $3.633 billion as of August 27, 2011, based on the quoted market prices for the same or similar issues or on the current rates available to the Company for debt of the same terms. Such fair value is greater than the carrying value of debt by $254.7 million at November 19, 2011, and $281.0 million at August 27, 2011.

Note I — Stock Repurchase Program

From January 1, 1998 to November 19, 2011, the Company has repurchased a total of 128.3 million shares at an aggregate cost of $10.5 billion, including 954,389 shares of its common stock at an aggregate cost of $309.8 million during the twelve week period ended November 19, 2011. On September 28, 2011, the Board voted to increase the authorization by $750 million to raise the cumulative share repurchase authorization from $10.4 billion to $11.15 billion. Considering cumulative repurchases as of November 19, 2011, the Company had $658.9 million remaining under the Board’s authorization to repurchase its common stock. The Company had no share repurchases of its common stock subsequent to November 19, 2011.

Note J — Comprehensive Income

Comprehensive income includes foreign currency translation adjustments; the impact from certain derivative financial instruments designated and effective as cash flow hedges, including changes in fair value, as applicable; the reclassification of gains and/or losses from Accumulated other comprehensive loss to net income to offset the earnings impact of the underlying items being hedged; pension liability adjustments and changes in the fair value of certain investments classified as available-for-sale.

Comprehensive income consisted of the following:

	Twelve Weeks Ended
	November 19,			November 20,
(in thousands)	2011			2010
Net income	$	191,125		$	172,076
Foreign currency translation adjustments		(23,987	)		12,668
Net impact from derivative instruments		2,877			(1,059	)
Pension liability adjustments		10,419			1,623
Unrealized losses from marketable securities		(261	)		(73	)
Comprehensive income	$	180,173		$	185,235

Note K — Litigation

The Company was a defendant in a lawsuit entitled “Coalition for a Level Playing Field, L.L.C., et al., v. AutoZone, Inc. et al.,” filed in the U.S. District Court for the Southern District of New York in October 2004. The case was originally filed by more than 200 plaintiffs, which are principally automotive aftermarket warehouse distributors and jobbers, against a number of defendants, including automotive aftermarket retailers and aftermarket automotive parts manufacturers. In the amended complaint, the plaintiffs alleged, inter alia, that some or all of the automotive aftermarket retailer defendants had knowingly received, in violation of the Robinson-Patman Act (the “Act”), from various of the manufacturer defendants benefits such as volume discounts, rebates, early buy allowances and other allowances, fees, inventory without payment, sham advertising and promotional payments, a share in the manufacturers’ profits, benefits of pay-on-scan purchases, implementation of radio frequency identification technology, and excessive payments for services purportedly performed for the manufacturers. Additionally, a subset of plaintiffs alleged a claim of fraud against the automotive aftermarket retailer defendants based on discovery issues in a prior litigation involving similar claims under the Act. In the prior litigation, the discovery dispute, as well as the underlying claims, was decided in favor of AutoZone and the other automotive aftermarket retailer defendants who proceeded to trial, pursuant to a unanimous jury verdict which was affirmed by the Second Circuit Court of Appeals. In the current litigation, the plaintiffs sought an unspecified amount of damages (including statutory trebling), attorneys’ fees, and a permanent injunction prohibiting the aftermarket retailer defendants from inducing and/or knowingly receiving discriminatory prices from any of the aftermarket manufacturer defendants and from opening up any further stores to compete with the plaintiffs as long as the defendants allegedly continue to violate the Act.

In an order dated September 7, 2010, and issued on September 16, 2010, the court granted motions to dismiss all claims against AutoZone and its co-defendant competitors and suppliers. Based on the record in the prior litigation, the court dismissed with prejudice all overlapping claims — that is, those covering the same time periods covered by the prior litigation and brought by the judgment plaintiffs in the prior litigation. The court also dismissed with prejudice the plaintiffs’ attempt to revisit discovery disputes from the prior litigation. Further, with respect to the other claims under the Act, the court found that the factual statements contained in the complaint fall short of what would be necessary to support a plausible inference of unlawful price discrimination. Finally, the court held that the AutoZone pay-on-scan program is a difference in non-price terms that are not governed by the Act. The court ordered the case closed, but also stated that “in an abundance of caution the Court [was] defer[ring] decision on whether to grant leave to amend to allow plaintiff an opportunity to propose curative amendments.” The plaintiffs filed a motion for leave to amend their complaint and attached a proposed Third Amended and Supplemental Complaint (the “Third Amended Complaint”) on behalf of four plaintiffs. The Third Amended Complaint repeated and expanded certain allegations from previous complaints, asserting two claims under the Act, but stated that all other plaintiffs have withdrawn their claims, and that, inter alia, Chief Auto Parts, Inc. had been dismissed as a defendant. AutoZone and the co-defendants filed an opposition to the motion seeking leave to amend.

10

In an order dated September 28, 2011, the court denied the four remaining plaintiffs’ motion for leave to file a Third Amended Complaint because the proposed Third Amended Complaint failed to address deficiencies previously identified by the court. On October 26, 2011, an appeal of the dismissal was filed by 143 plaintiffs to the United States Court of appeals for the Second Circuit. Briefing by both sides will proceed over the next several months and will likely be followed by oral argument.

The Company believes this suit to be without merit and is vigorously defending against it. The Company is unable to estimate a loss or possible range of loss.

In 2004, the Company acquired a store site in Mount Ephraim, New Jersey that had previously been the site of a gasoline service station and contained evidence of groundwater contamination. Upon acquisition, the Company voluntarily reported the groundwater contamination issue to the New Jersey Department of Environmental Protection and entered into a Voluntary Remediation Agreement providing for the remediation of the contamination associated with the property. The Company has conducted and paid for (at an immaterial cost to the Company) remediation of visible contamination on the property and is investigating, and will be addressing, potential vapor intrusion impacts in downgradient residences and businesses. The New Jersey Department of Environmental Protection has indicated that it will assert that the Company is liable for the downgradient impacts under a joint and severable liability theory, and the Company intends to contest any such assertion. Pursuant to the Voluntary Remediation Agreement, upon completion of all remediation required by the agreement, the Company believes it should be eligible to be reimbursed up to 75 percent of qualified remediation costs by the State of New Jersey. The Company has asked the state for clarification that the agreement applies to off-site work, and the state is considering the request. Although the aggregate amount of additional costs that the Company may incur pursuant to the remediation cannot currently be ascertained, the Company does not currently believe that fulfillment of its obligations under the agreement or otherwise will result in costs that are material to its financial condition, results of operations or cash flow.

The Company is involved in various other legal proceedings incidental to the conduct of its business, including several lawsuits containing class-action allegations in which the plaintiffs are current and former hourly and salaried employees who allege various wage and hour violations and unlawful termination practices. The Company does not currently believe that, either individually or in the aggregate, these matters will result in liabilities material to the Company’s financial condition, results of operations or cash flows.

Note L — Segment Reporting

The Company’s two operating segments (Domestic Auto Parts and Mexico) are aggregated as one reportable segment: Auto Parts Stores. The criteria the Company used to identify the reportable segment are primarily the nature of the products the Company sells and the operating results that are regularly reviewed by the Company’s chief operating decision maker to make decisions about the resources to be allocated to the business units and to assess performance. The accounting policies of the Company’s reportable segment are the same as those described in Note A in its Annual Report on Form 10-K for the year ended August 27, 2011.

The Auto Parts Stores segment is a retailer and distributor of automotive parts and accessories through the Company’s 4,832 stores in the United States, including Puerto Rico, and Mexico. Each store carries an extensive product line for cars, sport utility vehicles, vans and light trucks, including new and remanufactured automotive hard parts, maintenance items, accessories and non-automotive products.

The Other category reflects business activities that are not separately reportable, including ALLDATA, which produces, sells and maintains diagnostic and repair information software used in the automotive repair industry, and E-commerce, which includes direct sales to customers through www.autozone.com.

The Company evaluates its reportable segment primarily on the basis of net sales and segment profit, which is defined as gross profit. Segment results for the periods presented were as follows:

	Twelve Weeks Ended
	November 19,			November 20,
(in thousands)	2011			2010
Net Sales
Auto Parts Stores	$	1,884,138		$	1,754,987
Other		40,203			36,675
Total	$	1,924,341		$	1,791,662
Segment Profit
Auto Parts Stores	$	952,357		$	878,865
Other		31,270			28,883
Gross profit		983,627			907,748
Operating, selling, general and administrative expenses		(642,693	)		(601,627	)
Interest expense, net		(39,094	)		(37,253	)
Income before income taxes	$	301,840		$	268,868

11

Report of Independent Registered Public Accounting Firm

The Board of Directors and Stockholders
AutoZone, Inc.

We have reviewed the condensed consolidated balance sheet of AutoZone, Inc. as of November 19, 2011, the related condensed consolidated statements of income for the twelve week periods ended November 19, 2011 and November 20, 2010, and the condensed consolidated statements of cash flows for the twelve week periods ended November 19, 2011 and November 20, 2010. These financial statements are the responsibility of the Company’s management.

We conducted our review in accordance with the standards of the Public Company Accounting Oversight Board (United States). A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the Public Company Accounting Oversight Board, the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.

Based on our review, we are not aware of any material modifications that should be made to the condensed consolidated financial statements referred to above for them to be in conformity with U.S. generally accepted accounting principles.

We have previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheet of AutoZone, Inc. as of August 27, 2011, and the related consolidated statements of income, stockholders’ (deficit) equity, and cash flows for the year then ended, not presented herein, and, in our report dated October 24, 2011, we expressed an unqualified opinion on those consolidated financial statements. In our opinion, the information set forth in the accompanying condensed consolidated balance sheet as of August 27, 2011 is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.

/s/ Ernst & Young LLP

Memphis, Tennessee
December 15, 2011

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

Overview

We are the nation’s leading retailer and a leading distributor of automotive replacement parts and accessories in the United States. We began operations in 1979 and at November 19, 2011, operated 4,551 stores in the United States, including Puerto Rico, and 281 in Mexico. Each of our stores carries an extensive product line for cars, sport utility vehicles, vans and light trucks, including new and remanufactured automotive hard parts, maintenance items, accessories and non-automotive products. At November 19, 2011, in 2,733 of our domestic stores, we also have a commercial sales program that provides commercial credit and prompt delivery of parts and other products to local, regional and national repair garages, dealers, service stations and public sector accounts. We also sell the ALLDATA brand automotive diagnostic and repair software through www.alldata.com and www.alldatadiy.com. Additionally, we sell automotive hard parts, maintenance items, accessories, and non-automotive products through www.autozone.com, and our commercial customers can make purchases through www.autozonepro.com. We do not derive revenue from automotive repair or installation services.

Operating results for the twelve weeks ended November 19, 2011, are not necessarily indicative of the results that may be expected for the fiscal year ending August 25, 2012. Each of the first three quarters of our fiscal year consists of 12 weeks, and the fourth quarter consists of 16 or 17 weeks. The fourth quarters for fiscal 2011 and fiscal 2012 each have 16 weeks. Our business is somewhat seasonal in nature, with the highest sales generally occurring during the months of February through September and the lowest sales generally occurring in the months of December and January.

Executive Summary

Net sales were up 7.4% for the quarter, driven by domestic same store sales growth of 4.6%. We experienced sales growth from both our retail and commercial customers. Earnings per share increased 24.0% for the quarter.

Over the past several years, various factors have occurred within the economy that affect both our consumer and our industry, including the impact of the recession, continued high unemployment and other challenging economic conditions, which we believe have aided our sales growth during the quarter. As consumers’ cash flows have decreased due to these factors, we believe consumers have become more likely to keep their current vehicles longer and perform repair and maintenance in order to keep those vehicles well maintained. Given the nature of these macroeconomic factors, we cannot predict whether or for how long these trends will continue, nor can we predict to what degree these trends will impact us in the future.

More recently, we feel other macroeconomic factors have adversely impacted both our consumer and our industry. During the first quarter of fiscal 2012, the average price per gallon of unleaded gasoline in the United States was $3.50, up $0.72 or 26% from $2.78 in the comparable prior year period. We believe that the increase in gas prices is reducing discretionary spending for all consumers, and, in particular, our customers. While prices have declined since the end of our first quarter, given the unpredictability of gas prices, we cannot predict whether gas prices will increase or decrease, nor can we predict how any future changes in gas prices will impact our sales in future periods.

Our primary response to fluctuations in the demand for the products we sell are to adjust our inventory levels, store staffing, and advertising messages. We continue to believe we are well positioned to help our customers save money and meet their needs in a challenging macro environment.

Historically, the two statistics that we believed had the closest correlation to our market growth over the long-term were miles driven and the number of seven year old or older vehicles on the road. Prior to the recent recession, we had seen a close correlation between our net sales and the number of miles driven; however, recently we have seen minimal correlation in sales performance with miles driven. Sales have grown at an increased rate, while miles driven has either decreased or grown at a slower rate than what we have historically experienced. During this period of minimal correlation between net sales and miles driven, we believe net sales have been positively impacted by other factors, including the number of seven year old or older vehicles on the road. Since the beginning of fiscal year 2011 and through September 2011 (latest publicly available information), miles driven have decreased slightly as compared to the corresponding prior year period, and the average age of the U.S. light vehicle fleet continues to trend in our industry’s favor. We believe that annual miles driven will return to a low single digit growth rate over time and that the number of seven year old or older vehicles will continue to increase; however, we are unable to predict the impact, if any, these indicators will have on future results.

In the first quarter, failure and maintenance related categories continued to represent the largest portion of our sales mix, at approximately 84% of total sales, with failure related categories continuing to be our strongest performers. While we have not experienced any fundamental shifts in our category sales mix over recent periods, we did experience a slight increase in sales of failure related categories as a percentage of sales. We remain focused on refining and expanding our product assortment to ensure we have the best merchandise at the right price in each of our categories.

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Twelve Weeks Ended November 19, 2011,
Compared with Twelve Weeks Ended November 20, 2010

Net sales for the twelve weeks ended November 19, 2011, increased $132.7 million to $1.924 billion, or 7.4%, over net sales of $1.792 billion for the comparable prior year period. Total auto parts sales increased by 7.4%, primarily driven by a domestic same store sales (sales for stores open at least one year) increase of 4.6% and net sales of $47.3 million from new stores. The domestic same store sales increase was driven by higher transaction value, partially offset by decreased transaction counts. Higher transaction value is attributable to product inflation due to more complex, costly products and commodity price increases.

Gross profit for the twelve weeks ended November 19, 2011, was $983.6 million, or 51.1% of net sales, compared with $907.7 million, or 50.7% of net sales, during the comparable prior year period. The improvement in gross margin was attributable to distribution costs leveraging on higher sales (23 basis points), lower shrink expense (18 basis points) and slightly higher merchandise margins.

Operating, selling, general and administrative expenses for the twelve weeks ended November 19, 2011, were $642.7 million, or 33.4% of net sales, compared with $601.6 million, or 33.6% of net sales, during the comparable prior year period. The improvement in operating expenses was due to lower incentive compensation (33 basis points), favorable legal expense (32 basis points) and leverage from higher sales volumes. This leverage was partially offset by higher self insurance costs (51 basis points).

Net interest expense for the twelve weeks ended November 19, 2011, was $39.1 million compared with $37.3 million during the comparable prior year period. This increase was primarily due to the increase in debt over the comparable prior year period, offset by a decrease in borrowing rates. Average borrowings for the twelve weeks ended November 19, 2011, were $3.287 billion, compared with $2.861 billion for the comparable prior year period. Weighted average borrowing rates were 4.8% for the twelve weeks ended November 19, 2011, and 5.3% for the twelve weeks ended November 20, 2010.

Our effective income tax rate was 36.7% of pretax income for the twelve weeks ended November 19, 2011, and 36.0% for the comparable prior year period.

Net income for the twelve week period ended November 19, 2011, increased by $19.0 million to $191.1 million, and diluted earnings per share increased by 24.0% to $4.68 from $3.77 in the comparable prior year period. The impact on current quarter diluted earnings per share from stock repurchases since the end of the comparable prior year period was an increase of $0.48.

Liquidity and Capital Resources

The primary source of our liquidity is our cash flows realized through the sale of automotive parts, products and accessories. For the twelve weeks ended November 19, 2011, our net cash flows from operating activities provided $342.3 million as compared with $357.4 million provided during the comparable prior year period. The decrease is primarily due to higher income tax payments and a reduced benefit from the change in inventories net of payables, partially offset by higher net income. Our inventory increases are primarily attributable to an increased number of stores and to a lesser extent, our efforts to update product assortments in all of our stores. During the twelve weeks ended November 19, 2011, we continued to benefit from inventory being financed by our vendors. We had an accounts payable to inventory ratio of 112% at November 19, 2011, as compared to 107% at November 20, 2010.

Our net cash flows from investing activities for the twelve weeks ended November 19, 2011, used $61.9 million as compared with $47.9 million used in the comparable prior year period. Capital expenditures for the twelve weeks ended November 19, 2011, were $61.9 million compared to $45.8 million for the comparable prior year period. The increase is primarily driven by a shift in the mix of store openings from build-to-suit leases to ground leases and land purchases, which require a higher initial capital investment. During this twelve week period, we opened 19 net new stores. In the comparable prior year period, we opened 18 net new stores. Investing cash flows were also impacted by our wholly owned insurance captive, which purchased $11.1 million and sold $10.1 million in marketable securities during the twelve weeks ended November 19, 2011. During the comparable prior year period, the captive purchased $9.9 million in marketable securities and sold $7.3 million in marketable securities. Capital asset disposals provided $1.1million during the twelve week period ended November 19, 2011, and $0.5 million in the comparable prior year period.

Our net cash flows from financing activities for the twelve weeks ended November 19, 2011, used $280.7 million compared to $310.2 million used in the comparable prior year period. There were no proceeds from the issuance of debt for the current twelve week period ended November 19, 2011. During the comparable prior year, proceeds from the issuance of debt totaled $500 million. Those proceeds were used for the repayment of debt of $199.3 million, the repayment of a portion of our commercial paper borrowings, and general corporate purposes. For the twelve weeks ended November 19, 2011, net proceeds from borrowings of commercial paper and short-term borrowings were $5.8 million as compared to net repayments of $331.6 million in the comparable prior year period. Stock repurchases were $309.8 million in the current twelve week period as compared with $299.7 million in the comparable prior year period. For the twelve weeks ended November 19, 2011, proceeds from the sale of common stock and exercises of stock options provided $29.7 million, including $11.2 million in related tax benefits. In the comparable prior year period, proceeds from the sale of common stock and exercises of stock options provided $30.9 million, including $9.0 million in related tax benefits.

During fiscal 2012, we expect to invest in our business at an increased rate as compared to fiscal 2011. Our investment is expected to be directed primarily to our new-store development program and enhancements to existing stores and infrastructure. The amount of our investments in our new-store program is impacted by different factors, including such factors as whether the building and land are purchased (requiring higher investment) or leased (generally lower investment), located in the United States or Mexico, or located in urban or rural areas. During fiscal 2011 and fiscal 2010, our capital expenditures increased by approximately 2% and 16%, respectively, as compared to the prior year, and we expect our capital expenditures for fiscal 2012 to increase by 20% to 25% as compared to fiscal 2011. Our mix of store openings has moved away from build-to-suit leases (lower initial capital investment) to ground leases and land purchases (higher initial capital investment), resulting in increased capital expenditures per store during recent years, and we expect this trend to continue during the remainder of the fiscal year ending August 25, 2012.

14

In addition to the building and land costs, our new-store development program requires working capital, predominantly for inventories. Historically, we have negotiated extended payment terms from suppliers, reducing the working capital required and resulting in a high accounts payable to inventory ratio. We plan to continue leveraging our inventory purchases; however, our ability to do so may be limited by our vendors’ capacity to factor their receivables from us. Certain vendors participate in financing arrangements with financial institutions whereby they factor their receivables from us, allowing them to receive payment on our invoices at a discounted rate.

Depending on the timing and magnitude of our future investments (either in the form of leased or purchased properties or acquisitions), we anticipate that we will rely primarily on internally generated funds and available borrowing capacity to support a majority of our capital expenditures, working capital requirements and stock repurchases. The balance may be funded through new borrowings. We anticipate that we will be able to obtain such financing in view of our current credit ratings and favorable experiences in the debt markets in the past.

For the trailing four quarters ended November 19, 2011, our after-tax return on invested capital (“ROIC”) was 32.1% as compared to 28.6% for the comparable prior year period. ROIC is calculated as after-tax operating profit (excluding rent charges) divided by average invested capital (which includes a factor to capitalize operating leases). ROIC increased primarily due to increased after-tax operating profit. We use ROIC to evaluate whether we are effectively using our capital resources and believe it is an important indicator of our overall operating performance.

Debt Facilities

In September 2011, we amended and restated our $800 million revolving credit facility, which was scheduled to expire in July 2012. The capacity under the revolving credit facility was increased to $1.0 billion. This credit facility is available to primarily support commercial paper borrowings, letters of credit and other short-term, unsecured bank loans. The capacity of the credit facility may be increased to $1.250 billion prior to the maturity date at our election and subject to bank credit capacity and approval, may include up to $200 million in letters of credit, and may include up to $175 million in capital leases each fiscal year. Under the revolving credit facility, we may borrow funds consisting of Eurodollar loans or base rate loans. Interest accrues on Eurodollar loans at a defined Eurodollar rate, defined as the London InterBank Offered Rate (“LIBOR”) plus the applicable percentage, as defined in the revolving credit facility, depending upon our senior, unsecured, (non-credit enhanced) long-term debt rating. Interest accrues on base rate loans as defined in the revolving credit facility. We also have the option to borrow funds under the terms of a swingline loan subfacility. The revolving credit facility expires in September 2016.

As the available balance is reduced by commercial paper borrowings and certain outstanding letters of credit, we had $399.4 million in available capacity under our $1.0 billion credit facility at November 19, 2011.

We also maintain a letter of credit facility that allows us to request the participating bank to issue letters of credit on our behalf up to an aggregate amount of $100 million. The letter of credit facility is in addition to the letters of credit that may be issued under the revolving credit facility. As of November 19, 2011, we have $98.3 million in letters of credit outstanding under the letter of credit facility, which expires in June 2013.

On November 15, 2010, we issued $500 million in 4.000% Senior Notes due 2020 under our shelf registration statement filed with the Securities and Exchange Commission on July 29, 2008 (the “Shelf Registration”). The Shelf Registration allows us to sell an indeterminate amount in debt securities to fund general corporate purposes, including repaying, redeeming or repurchasing outstanding debt and for working capital, capital expenditures, new store openings, stock repurchases and acquisitions. During the quarter ended November 20, 2010, we used the proceeds from the issuance of debt to repay the principal due relating to the 4.750% Senior Notes that matured on November 15, 2010, to repay a portion of the commercial paper borrowings and for general corporate purposes.

The 6.500% and 7.125% Senior Notes issued during August 2008, and the 5.750% Senior Notes issued in July 2009, are subject to an interest rate adjustment if the debt ratings assigned to the notes are downgraded. These notes, along with the 4.000% Senior Notes issued in November 2010, also contain a provision that repayment of the notes may be accelerated if AutoZone experiences a change in control (as defined in the agreements). Our borrowings under our other senior notes contain minimal covenants, primarily restrictions on liens. Under our other borrowing arrangements, covenants include limitations on total indebtedness, restrictions on liens, a minimum fixed charge coverage ratio and a change of control provision that may require acceleration of the repayment obligations under certain circumstances. All of the repayment obligations under our borrowing arrangements may be accelerated and come due prior to the scheduled payment date if covenants are breached or an event of default occurs. As of November 19, 2011, we were in compliance with all covenants and expect to remain in compliance with all covenants.

Our adjusted debt to earnings before interest, taxes, depreciation, amortization, rent and share-based expense (“EBITDAR”) ratio was 2.4:1 as of November 19, 2011, and was 2.3:1 as of November 20, 2010. We calculate adjusted debt as the sum of total debt, capital lease obligations and rent times six; and we calculate EBITDAR by adding interest, taxes, depreciation, amortization, rent and share-based expenses to net income. Adjusted debt to EBITDAR is calculated on a trailing four quarter basis. We target our debt levels to a ratio of adjusted debt to EBITDAR in order to maintain our investment grade credit ratings. We believe this is important information for the management of our debt levels.

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Stock Repurchases

From January 1, 1998 to November 19, 2011, we have repurchased a total of 128.3 million shares at an aggregate cost of $10.5 billion, including 954,389 shares of our common stock at an aggregate cost of $309.8 million during the twelve week period ended November 19, 2011. On September 28, 2011, the Board of Directors (the “Board”) voted to increase the authorization by $750 million to raise the cumulative share repurchase authorization from $10.4 billion to $11.15 billion. Considering cumulative repurchases as of November 19, 2011, we have $658.9 million remaining under the Board’s authorization to repurchase our common stock. We had no share repurchases of our common stock subsequent to November 19, 2011.

Off-Balance Sheet Arrangements

Since our fiscal year end, we have cancelled, issued and modified stand-by letters of credit that are primarily renewed on an annual basis to cover deductible payments to our casualty insurance carriers. Our total stand-by letters of credit commitment at November 19, 2011, was $101.9 million compared with $96.6 million at August 27, 2011, and our total surety bonds commitment at November 19, 2011, was $26.5 million compared with $26.3 million at August 27, 2011.

Financial Commitments

As of November 19, 2011, there were no significant changes to our contractual obligations as described in our Annual Report on Form 10-K for the year ended August 27, 2011.

Reconciliation of Non-GAAP Financial Measures

Management’s Discussion and Analysis of Financial Condition and Results of Operations include certain financial measures not derived in accordance with U.S. generally accepted accounting principles (“GAAP”). These non-GAAP financial measures provide additional information for determining our optimum capital structure and are used to assist management in evaluating performance and in making appropriate business decisions to maximize stockholders’ value.

Non-GAAP financial measures should not be used as a substitute for GAAP financial measures, or considered in isolation, for the purpose of analyzing our operating performance, financial position or cash flows. However, we have presented the non-GAAP financial measures, as we believe they provide additional information that is useful to investors. Furthermore, our management and the Compensation Committee of the Board use the abovementioned non-GAAP financial measures to analyze and compare our underlying operating results and to determine payments of performance-based compensation. We have included a reconciliation of this information to the most comparable GAAP measures in the following reconciliation tables.

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Reconciliation of Non-GAAP Financial Measure: After-Tax Return on Invested Capital “ROIC”

The following tables reconcile the percentages of ROIC for the trailing four quarters ended November 19, 2011 and November 20, 2010.

	A			B			A-B=C			D			C+D
													Trailing Four
	Fiscal Year			Twelve			Forty			Twelve Weeks			Quarters
	Ended			Weeks Ended			Weeks Ended			Ended			Ended
	August 27,			November 20,			August 27,			November 19,			November 19,
(in thousands, except percentage)	2011			2010			2011			2011			2011
Net income	$	848,974		$	172,076		$	676,898		$	191,125		$	868,023
Adjustments:
Interest expense		170,557			37,253			133,304			39,094			172,398
Rent expense		213,846			47,546			166,300			51,303			217,603
Tax effect(1)		(138,554	)		(30,565	)		(107,989	)		(32,583	)		(140,572	)
After-tax return	$	1,094,823		$	226,310		$	868,513		$	248,939		$	1,117,452
Average debt(2)													$	3,211,046
Average deficit(3)														(1,115,290	)
Rent x 6(4)														1,305,618
Average capital lease obligations(5)														84,662
Pre-tax invested capital													$	3,486,036
ROIC														32.1	%

	A			B			A-B=C			D			C+D
													Trailing Four
	Fiscal Year			Twelve			Forty			Twelve Weeks			Quarters
	Ended			Weeks Ended			Weeks Ended			Ended			Ended
	August 28,			November 21,			August 28,			November 20,			November 20,
(in thousands, except percentage)	2010			2009			2010			2010			2010
Net income	$	738,311		$	143,300		$	595,011		$	172,076		$	767,087
Adjustments:
Interest expense		158,909			36,340			122,569			37,253			159,822
Rent expense		195,632			44,397			151,235			47,546			198,781
Tax effect(1)		(128,983	)		(28,953	)		(100,030	)		(30,345	)		(130,375	)
After-tax return	$	963,869		$	195,084		$	768,785		$	226,530		$	995,315
Average debt(2)													$	2,800,081
Average deficit(3)														(584,704	)
Rent x 6(4)														1,192,686
Average capital lease obligations(5)														68,271
Pre-tax invested capital													$	3,476,334
ROIC														28.6	%

(1)	The effective tax rate over the trailing four quarters ended November 19, 2011 and November 20, 2010 is 36.0% and 36.4%, respectively.
(2)	Average debt is equal to the average of our debt measured as of the previous five quarters.
(3)	Average equity is equal to the average of our stockholders’ deficit measured as of the previous five quarters.
(4)	Rent is multiplied by a factor of six to capitalize operating leases in the determination of pre-tax invested capital.
(5)	Average capital lease obligations are equal to the average of our capital lease obligations measured as of the previous five quarters.

17

Reconciliation of Non-GAAP Financial Measure: Adjusted Debt to Earnings before Interest, Taxes, Depreciation, Rent and Share-Based Expense “EBITDAR”

The following tables reconcile the ratio of adjusted debt to EBITDAR for the trailing four quarters ended November 19, 2011 and November 20, 2010.

	A		B		A-B=C		D		C+D
									Trailing Four
	Fiscal Year		Twelve		Forty		Twelve Weeks		Quarters
	Ended		Weeks Ended		Weeks Ended		Ended		Ended
	August 27,		November 20,		August 27,		November 19,		November 19,
(in thousands, except ratio)	2011		2010		2011		2011		2011
Net income	$	848,974	$	172,076	$	676,898	$	191,125	$	868,023
Add: Interest expense		170,557		37,253		133,304		39,094		172,398
Income tax expense		475,272		96,792		378,480		110,715		489,195
EBIT		1,494,803		306,121		1,188,682		340,934		1,529,616
Add: Depreciation expense		196,209		44,291		151,918		48,647		200,565
Rent expense		213,846		47,546		166,300		51,303		217,603
Share-based expense		26,625		5,071		21,554		7,562		29,116
EBITDAR	$	1,931,483	$	403,029	$	1,528,454	$	448,446	$	1,976,900
Debt									$	3,354,317
Capital lease obligations										86,759
Add: Rent x 6(1)										1,305,618
Adjusted debt									$	4,746,694
Adjusted debt / EDITDAR										2.4

	A		B		A-B=C		D		C+D
									Trailing Four
	Fiscal Year		Twelve		Forty		Twelve Weeks		Quarters
	Ended		Weeks Ended		Weeks Ended		Ended		Ended
	August 28,		November 21,		August 28,		November 20,		November 20,
(in thousands, except ratio)	2010		2009		2010		2010		2010
Net income	$	738,311	$	143,300	$	595,011	$	172,076	$	767,087
Add: Interest expense		158,909		36,340		122,569		37,253		159,822
Income tax expense		422,194		80,788		341,406		96,792		438,198
EBIT		1,319,414		260,428		1,058,986		306,121		1,365,107
Add: Depreciation expense		192,084		42,566		149,518		44,291		193,809
Rent expense		195,632		44,397		151,235		47,546		198,781
Share-based expense		19,120		4,251		14,869		5,071		19,940
EBITDAR	$	1,726,250	$	351,642	$	1,374,608	$	403,029	$	1,777,637
Debt									$	2,879,217
Capital lease obligations										85,019
Add: Rent x 6(1)										1,192,686
Adjusted debt									$	4,156,922
Adjusted debt / EDITDAR										2.3

(1) Rent is multiplied by a factor of six to capitalize operating leases in the determination of adjusted debt.

Critical Accounting Policies

Preparation of our consolidated financial statements requires us to make estimates and assumptions affecting the reported amounts of assets and liabilities at the date of the financial statements, reported amounts of revenues and expenses during the reporting period and related disclosures of contingent liabilities. Our policies are evaluated on an ongoing basis, and our significant judgments and estimates are drawn from historical experience and other assumptions that we believe to be reasonable under the circumstances. Actual results could differ under different assumptions or conditions.

Our critical accounting policies are described in Management’s Discussion and Analysis of Financial Condition and Results of Operations in our Annual Report on Form 10-K for the year ended August 27, 2011. Our critical accounting policies have not changed since the filing of our Annual Report on Form 10-K for the year ended August 27, 2011.

18

Forward-Looking Statements

Certain statements contained in this Quarterly Report on Form 10-Q are forward-looking statements. Forward-looking statements typically use words such as “believe,” “anticipate,” “should,” “intend,” “plan,” “will,” “expect,” “estimate,” “project,” “positioned,” “strategy” and similar expressions. These are based on assumptions and assessments made by our management in light of experience and perception of historical trends, current conditions, expected future developments and other factors that we believe to be appropriate. These forward-looking statements are subject to a number of risks and uncertainties, including without limitation: credit market conditions; the impact of recessionary conditions; competition; product demand; the ability to hire and retain qualified employees; consumer debt levels; inflation; weather; raw material costs of our suppliers; energy prices; war and the prospect of war, including terrorist activity; construction delays; access to available and feasible financing; and changes in laws or regulations. Certain of these risks are discussed in more detail in the “Risk Factors” section contained in Item 1A under Part 1 of our Annual Report on Form 10-K for the year ended August 27, 2011, and these Risk Factors should be read carefully. Forward-looking statements are not guarantees of future performance and actual results, developments and business decisions may differ from those contemplated by such forward-looking statements, and events described above and in the “Risk Factors” could materially and adversely affect our business. Forward-looking statements speak only as of the date made. Except as required by applicable law, we undertake no obligation to update publicly any forward-looking statements, whether as a result of new information, future events or otherwise. Actual results may materially differ from anticipated results.

Item 3. Quantitative and Qualitative Disclosures About Market Risk.

At November 19, 2011, there have been no material changes to our instruments and positions that are sensitive to market risk since the disclosures in our Annual Report on Form 10-K for the year ended August 27, 2011, except as described below.

The fair value of our debt was estimated at $3.609 billion as of November 19, 2011, and $3.633 billion as of August 27, 2011, based on the quoted market prices for the same or similar debt issues or on the current rates available to AutoZone for debt of the same terms. Such fair value is greater than the carrying value of debt by $254.7 million at November 19, 2011 and $281.0 million at August 27, 2011. We had $604.3 million of variable rate debt outstanding at November 19, 2011, and $601.7 million of variable rate debt outstanding at August 27, 2011. At these borrowing levels for variable rate debt, a one percentage point increase in interest rates would have had an unfavorable annual impact on our pre-tax earnings and cash flows of $6.0 million in fiscal 2012. The primary interest rate exposure on variable rate debt is based on LIBOR. We had outstanding fixed rate debt of $2.750 billion at November 19, 2011, and $2.750 billion at August 27, 2011. A one percentage point increase in interest rates would reduce the fair value of our fixed rate debt by $105.9 million at November 19, 2011.

Item 4. Controls and Procedures.

As of November 19, 2011, an evaluation was performed under the supervision and with the participation of our management, including the Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, as amended. Based on that evaluation, our management, including the Chief Executive Officer and Chief Financial Officer, concluded that our disclosure controls and procedures were effective as of November 19, 2011. During or subsequent to the quarter ended November 19, 2011, there were no changes in our internal controls that have materially affected or are reasonably likely to materially affect, internal controls over financial reporting.

Item 4T. Controls and Procedures.

Not applicable.

19

PART II. OTHER INFORMATION

Item 1. Legal Proceedings.

We were a defendant in a lawsuit entitled “Coalition for a Level Playing Field, L.L.C., et al., v. AutoZone, Inc. et al.,” filed in the U.S. District Court for the Southern District of New York in October 2004. The case was originally filed by more than 200 plaintiffs, which are principally automotive aftermarket warehouse distributors and jobbers, against a number of defendants, including automotive aftermarket retailers and aftermarket automotive parts manufacturers. In the amended complaint, the plaintiffs alleged, inter alia, that some or all of the automotive aftermarket retailer defendants had knowingly received, in violation of the Robinson-Patman Act (the “Act”), from various of the manufacturer defendants benefits such as volume discounts, rebates, early buy allowances and other allowances, fees, inventory without payment, sham advertising and promotional payments, a share in the manufacturers’ profits, benefits of pay-on-scan purchases, implementation of radio frequency identification technology, and excessive payments for services purportedly performed for the manufacturers. Additionally, a subset of plaintiffs alleged a claim of fraud against the automotive aftermarket retailer defendants based on discovery issues in a prior litigation involving similar claims under the Act. In the prior litigation, the discovery dispute, as well as the underlying claims, was decided in favor of AutoZone and the other automotive aftermarket retailer defendants who proceeded to trial, pursuant to a unanimous jury verdict which was affirmed by the Second Circuit Court of Appeals. In the current litigation, the plaintiffs sought an unspecified amount of damages (including statutory trebling), attorneys’ fees, and a permanent injunction prohibiting the aftermarket retailer defendants from inducing and/or knowingly receiving discriminatory prices from any of the aftermarket manufacturer defendants and from opening up any further stores to compete with the plaintiffs as long as the defendants allegedly continue to violate the Act.

In an order dated September 7, 2010, and issued on September 16, 2010, the court granted motions to dismiss all claims against AutoZone and its co-defendant competitors and suppliers. Based on the record in the prior litigation, the court dismissed with prejudice all overlapping claims — that is, those covering the same time periods covered by the prior litigation and brought by the judgment plaintiffs in the prior litigation. The court also dismissed with prejudice the plaintiffs’ attempt to revisit discovery disputes from the prior litigation. Further, with respect to the other claims under the Act, the court found that the factual statements contained in the complaint fall short of what would be necessary to support a plausible inference of unlawful price discrimination. Finally, the court held that the AutoZone pay-on-scan program is a difference in non-price terms that are not governed by the Act. The court ordered the case closed, but also stated that “in an abundance of caution the Court [was] defer[ring] decision on whether to grant leave to amend to allow plaintiff an opportunity to propose curative amendments.” The plaintiffs filed a motion for leave to amend their complaint and attached a proposed Third Amended and Supplemental Complaint (the “Third Amended Complaint”) on behalf of four plaintiffs. The Third Amended Complaint repeated and expanded certain allegations from previous complaints, asserting two claims under the Act, but stated that all other plaintiffs have withdrawn their claims, and that, inter alia, Chief Auto Parts, Inc. had been dismissed as a defendant. AutoZone and the co-defendants filed an opposition to the motion seeking leave to amend.

In an order dated September 28, 2011, the court denied the four remaining plaintiffs’ motion for leave to file a Third Amended Complaint because the proposed Third Amended Complaint failed to address deficiencies previously identified by the court. On October 26, 2011, an appeal of the dismissal was filed by 143 plaintiffs to the United States Court of appeals for the Second Circuit. Briefing by both sides will proceed over the next several months and will likely be followed by oral argument.

We believe this suit to be without merit and are vigorously defending against it. We are unable to estimate a loss or possible range of loss.

In 2004, AutoZone acquired a store site in Mount Ephraim, New Jersey that had previously been the site of a gasoline service station and contained evidence of groundwater contamination. Upon acquisition, we voluntarily reported the groundwater contamination issue to the New Jersey Department of Environmental Protection and entered into a Voluntary Remediation Agreement providing for the remediation of the contamination associated with the property. AutoZone has conducted and paid for (at an immaterial cost to us) remediation of visible contamination on the property and is investigating, and will be addressing, potential vapor intrusion impacts in downgradient residences and businesses. The New Jersey Department of Environmental Protection has indicated that it will assert that the Company is liable for the downgradient impacts under a joint and severable liability theory, and we intend to contest any such assertion. Pursuant to the Voluntary Remediation Agreement, upon completion of all remediation required by the agreement, we believe we should be eligible to be reimbursed up to 75 percent of qualified remediation costs by the State of New Jersey. We have asked the state for clarification that the agreement applies to off-site work, and the state is considering the request. Although the aggregate amount of additional costs that we may incur pursuant to the remediation cannot currently be ascertained, we do not currently believe that fulfillment of our obligations under the agreement or otherwise will result in costs that are material to our financial condition, results of operations or cash flow.

We are involved in various legal proceedings incidental to the conduct of our business, including several lawsuits containing class-action allegations in which the plaintiffs are current and former hourly and salaried employees who allege various wage and hour violations and unlawful termination practices. We do not currently believe that, either individually or in the aggregate, these matters will result in liabilities material to our financial condition, results of operations or cash flows.

Item 1A. Risk Factors.

As of the date of this filing, there have been no material changes in our risk factors from those disclosed in Part I, Item 1A, of our Annual Report on Form 10-K for the fiscal year ended August 27, 2011.

20

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

Shares of common stock repurchased by the Company during the quarter ended November 19, 2011, were as follows:

Issuer Repurchases of Equity Securities

					Total Number of		Maximum Dollar
					Shares Purchased as		Value that May Yet
	Total Number		Average		Part of Publicly		Be Purchased Under
	of Shares		Price Paid		Announced Plans or		the Plans or
Period	Purchased		per Share		Programs		Programs
August 28, 2011 to September 24, 2011		—	$	—		—	$	968,626,605
September 25, 2011 to October 22, 2011		495,979		322.09		495,979		808,876,585
October 23, 2011 to November 19, 2011		458,410		327.25		458,410		658,861,646
Total		954,389	$	324.57		954,389	$	658,861,646

During 1998, the Company announced a program permitting the Company to repurchase a portion of its outstanding shares not to exceed a dollar maximum established by the Company’s Board of Directors. The program was most recently amended on September 28, 2011, to increase the repurchase authorization to $11.15 billion from $10.4 billion and does not have an expiration date. All of the above repurchases were part of this program. We had no share repurchases of our common stock subsequent to November 19, 2011.

Item 3. Defaults Upon Senior Securities.

Not applicable.

Item 4. Removed and Reserved.

Not applicable.

Item 5. Other Information.

Not applicable.

21

Item 6. Exhibits.

The following exhibits are filed as part of this report:

	3.1	Restated Articles of Incorporation of AutoZone, Inc. incorporated by reference to Exhibit 3.1 to the Quarterly Report on Form 10-Q for the quarter ended February 13, 1999.
	3.2	Fifth Amended and Restated By-laws of AutoZone, Inc. incorporated by reference to Exhibit 3.1 to the Current Report on Form 8-K dated September 28, 2011.
	*10.1	Second Amendment to AutoZone, Inc. Executive Deferred Compensation Plan incorporated by reference to Exhibit 10.1 to the Form 8-K dated December 14, 2011.
	*10.2	First Amendment to AutoZone, Inc. Fourth Amended and Restated Executive Stock Purchase Plan incorporated by reference to Exhibit 10.2 to the Form 8-K dated December 14, 2011.
	12.1	Computation of Ratio of Earnings to Fixed Charges.
	15.1	Letter Regarding Unaudited Interim Financial Statements.
	31.1	Certification of Principal Executive Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
	31.2	Certification of Principal Financial Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
	32.1	Certification of Principal Executive Officer Pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
	32.2	Certification of Principal Financial Officer Pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
**101.INS		XBRL Instance Document
**101.SCH		XBRL Taxonomy Extension Schema Document
**101.CAL		XBRL Taxonomy Extension Calculation Document
**101.LAB		XBRL Taxonomy Extension Labels Document
**101.PRE XBRL		Taxonomy Extension Presentation Document
**101.DEF XBRL		Taxonomy Extension Definition Document

*	Management contract or compensatory plan or arrangement.
**	In accordance with Regulation S-T, the Interactive Data Files in Exhibit 101 to the Quarterly Report on Form 10-Q shall be deemed “furnished” and not “filed.”

22

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.

AUTOZONE, INC.
By:	/s/ WILLIAM T. GILES William T. Giles
	Chief Financial Officer, Executive Vice President,
	Finance, Information Technology and Store Development
	(Principal Financial Officer)
By:	/s/ CHARLIE PLEAS, III Charlie Pleas, III
	Senior Vice President, Controller
	(Principal Accounting Officer)

Dated: December 15, 2011

23

EXHIBIT INDEX

The following exhibits are filed as part of this report:

	3.1	Restated Articles of Incorporation of AutoZone, Inc. incorporated by reference to Exhibit 3.1 to the Quarterly Report on Form 10-Q for the quarter ended February 13, 1999.
	3.2	Fifth Amended and Restated By-laws of AutoZone, Inc. incorporated by reference to Exhibit 3.1 to the Current Report on Form 8-K dated September 28, 2011.
	*10.1	Second Amendment to AutoZone, Inc. Executive Deferred Compensation Plan incorporated by reference to Exhibit 10.1 to the Form 8-K dated December 14, 2011.
	*10.2	First Amendment to AutoZone, Inc. Fourth Amended and Restated Executive Stock Purchase Plan incorporated by reference to Exhibit 10.2 to the Form 8-K dated December 14, 2011.
	12.1	Computation of Ratio of Earnings to Fixed Charges.
	15.1	Letter Regarding Unaudited Interim Financial Statements.
	31.1	Certification of Principal Executive Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
	31.2	Certification of Principal Financial Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
	32.1	Certification of Principal Executive Officer Pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
	32.2	Certification of Principal Financial Officer Pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
**101.INS		XBRL Instance Document
**101.SCH		XBRL Taxonomy Extension Schema Document
**101.CAL		XBRL Taxonomy Extension Calculation Document
**101.LAB		XBRL Taxonomy Extension Labels Document
**101.PRE		XBRL Taxonomy Extension Presentation Document
**101.DEF		XBRL Taxonomy Extension Definition Document

*	Management contract or compensatory plan or arrangement.
**	In accordance with Regulation S-T, the Interactive Data Files in Exhibit 101 to the Quarterly Report on Form 10-Q shall be deemed “furnished” and not “filed.”

24

EX-12.1

Exhibit 12.1

Computation of Ratio of Earnings to Fixed Charges
(Unaudited)
(in thousands, except ratios)

	Twelve Weeks Ended
	November 19,			November 20,
	2011			2010
Earnings:
Income before income taxes	$	301,840		$	268,868
Fixed charges		55,596			52,637
Less: Capitalized interest		(162	)		(132	)
Adjusted earnings	$	357,274		$	321,373
Fixed charges:
Gross interest expense	$	37,867		$	36,092
Amortization of debt expense		1,738			1,725
Interest portion of rent expense		15,991			14,820
Fixed charges	$	55,596		$	52,637
Ratio of earnings to fixed charges		6.4			6.1

	Fiscal Year Ended August
	2011			2010			2009			2008			2007
	(52 weeks)			(52 weeks)			(52 weeks)			(53 weeks)			(52 weeks)
Earnings:
Income before income taxes	$	1,324,246		$	1,160,505		$	1,033,746		$	1,007,389		$	936,150
Fixed charges		240,329			223,608			204,017			173,311			170,852
Less: Capitalized interest		(1,059	)		(1,093	)		(1,301	)		(1,313	)		(1,376	)
Adjusted earnings	$	1,563,516		$	1,383,020		$	1,236,462		$	1,179,387		$	1,105,626
Fixed charges:
Gross interest expense	$	164,712		$	156,135		$	143,860		$	120,006		$	121,592
Amortization of debt expense		8,962			6,495			3,644			1,837			1,719
Interest portion of rent expense		66,655			60,978			56,513			51,468			47,541
Fixed charges	$	240,329		$	223,608		$	204,017		$	173,311		$	170,852
Ratio of earnings to fixed charges		6.5			6.2			6.1			6.8			6.5

EX-15.1

Exhibit 15.1

The Board of Directors and Stockholders
AutoZone, Inc.

We are aware of the incorporation by reference in the following Registration Statements of AutoZone, Inc. and in the related Prospectuses of our report dated December 15, 2011, related to the unaudited condensed consolidated financial statements of AutoZone, Inc. that are included in its Quarterly Report on Form 10-Q for the quarter ended November 19, 2011:

Registration Statement (Form S-8 No. 333-19561) pertaining to the AutoZone, Inc. 1996 Stock Option Plan

Registration Statement (Form S-8 No. 333-42797) pertaining to the AutoZone, Inc. Amended and Restated Employee Stock Purchase Plan

Registration Statement (Form S-8 No. 333-48981) pertaining to the AutoZone, Inc. 1998 Director Stock Option Plan

Registration Statement (Form S-8 No. 333-48979) pertaining to the AutoZone, Inc. 1998 Director Compensation Plan

Registration Statement (Form S-8 No. 333-88245) pertaining to the AutoZone, Inc. Second Amended and Restated 1996 Stock Option Plan

Registration Statement (Form S-8 No. 333-88243) pertaining to the AutoZone, Inc. Amended and Restated 1998 Director Stock Option Plan

Registration Statement (Form S-8 No. 333-88241) pertaining to the AutoZone, Inc. Amended and Restated Director Compensation Plan

Registration Statement (Form S-8 No. 333-75142) pertaining to the AutoZone, Inc. Third Amended and Restated 1998 Director Stock Option Plan

Registration Statement (Form S-8 No. 333-75140) pertaining to the AutoZone, Inc. Executive Stock Purchase Plan

Registration Statement (Form S-3 No. 333-83436) pertaining to a shelf registration to sell 15,000,000 shares of common stock owned by certain selling stockholders

Registration Statement (Form S-3 No. 333-100205) pertaining to a registration to sell $500 million of debt securities

Registration Statement (Form S-8 No. 333-103665) pertaining to the AutoZone, Inc. 2003 Director Compensation Plan

Registration Statement (Form S-8 No. 333-103666) pertaining to the AutoZone, Inc. 2003 Director Stock Option Plan

Registration Statement (Form S-3 No. 333-107828) pertaining to a registration to sell $500 million of debt securities

Registration Statement (Form S-3 No. 333-118308) pertaining to the registration to sell $200 million of debt securities

Registration Statement (Form S-8 No. 333-139559) pertaining to the AutoZone, Inc. 2006 Stock Option Plan

Registration Statement (Form S-3 No. 333-152592) pertaining to a shelf registration to sell debt securities

Registration Statement (Form S-8 No. 333-171186) pertaining to the AutoZone, Inc. 2011 Equity Incentive Award Plan

/s/ Ernst & Young LLP

Memphis, Tennessee
December 15, 2011

EX-31.1

Exhibit 31.1

CERTIFICATION PURSUANT TO
RULES 13a-14(a) AND 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,
AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, William C. Rhodes, III, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of AutoZone, Inc. (“registrant”);

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(s) 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(s) 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.

December 15, 2011

/s/ WILLIAM C. RHODES, III  

William C. Rhodes, III 

Chairman, President and Chief Executive Officer (Principal Executive Officer) 

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO
RULES 13a-14(a) AND 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,
AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, William T. Giles, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of AutoZone, Inc. (“registrant”);

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(s) 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(s) 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.

December 15, 2011

/s/ WILLIAM T. GILES  

William T. Giles 

Chief Financial Officer, Executive Vice President, Finance, Information Technology and Store Development (Principal Financial Officer) 

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of AutoZone, Inc. (the “Company”) on Form 10-Q for the period ended November 19, 2011, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, William C. Rhodes, III, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(i) the Report fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934; and

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

December 15, 2011

/s/ WILLIAM C. RHODES, III  

William C. Rhodes, III 

Chairman, President and Chief Executive Officer (Principal Executive Officer) 

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of AutoZone, Inc. (the “Company”) on Form 10-Q for the period ended November 19, 2011, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, William T. Giles, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(i) the Report fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934; and

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

December 15, 2011

/s/ WILLIAM T. GILES  

William T. Giles 

Chief Financial Officer, Executive Vice President, Finance, Information Technology and Store Development (Principal Financial Officer) 

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Segment Reporting (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Nov. 19, 2011 OperatingSegment ReportableSegment Store	Nov. 20, 2010
Net Sales
Net sales	$ 1,924,341	$ 1,791,662
Segment Profit
Gross profit	983,627	907,748
Operating, selling, general and administrative expenses	(642,693)	(601,627)
Interest expense, net	(39,094)	(37,253)
Income before income taxes	301,840	268,868
Segment Reporting (Textuals) [Abstract]
Number of operating segments	2
Number of reportable segments	1
Number of automotive parts and accessories stores in the United States, including Puerto Rico and Mexico	4,832
Auto Parts Stores [Member]
Net Sales
Net sales	1,884,138	1,754,987
Segment Profit
Gross profit	952,357	878,865
Other [Member]
Net Sales
Net sales	40,203	36,675
Segment Profit
Gross profit	$ 31,270	$ 28,883

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Pension and Savings Plans (Details) (USD $)	3 Months Ended
	Nov. 19, 2011	Nov. 20, 2010
Net periodic pension expense
Interest cost	$ 2,819,000	$ 2,678,000
Expected return on plan assets	(2,704,000)	(2,181,000)
Amortization of net loss	2,260,000	2,653,000
Net periodic pension expense	2,375,000	3,150,000
Pension and Savings Plans (Textuals) [Abstract]
Annual contributions by the Company to pension plans	1,300,000
Expected contributions to the plan during the remainder of fiscal 2011	$ 5,400,000

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General (Details)	3 Months Ended
	Nov. 19, 2011
General (Textuals) [Abstract]
Description of reporting periods	Operating results for the twelve weeks ended November 19, 2011, are not necessarily indicative of the results that may be expected for the fiscal year ending August 25, 2012. Each of the first three quarters of AutoZone’s fiscal year consists of 12 weeks, and the fourth quarter consists of 16 or 17 weeks. The fourth quarters for fiscal 2011 and fiscal 2012 each have 16 weeks. Additionally, the Company’s business is somewhat seasonal in nature, with the highest sales generally occurring during the months of February through September and the lowest sales generally occurring in the months of December and January.

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Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Nov. 19, 2011	Nov. 20, 2010
Comprehensive Income
Net income	$ 191,125	$ 172,076
Foreign currency translation adjustments	(23,987)	12,668
Net impact from derivative instruments	2,877	(1,059)
Pension liability adjustments	10,419	1,623
Unrealized losses from marketable securities	(261)	(73)
Comprehensive income	$ 180,173	$ 185,235

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Marketable Securities

3 Months Ended

Nov. 19, 2011

Marketable Securities [Abstract]

Marketable Securities

Note D — Marketable Securities

The Company’s basis for determining the cost of a security sold is the “Specific Identification Model”. Unrealized gains (losses) on marketable securities are recorded in Accumulated other comprehensive loss. The Company’s available-for-sale marketable securities consisted of the following:

	November 19, 2011
	Amortized		Gross		Gross
	Cost		Unrealized		Unrealized
(in thousands)	Basis		Gains		Losses			Fair Value
Corporate securities	$	27,030	$	146	$	(136	)	$	27,040
Government bonds		30,516		259		(18	)		30,757
Mortgage-backed securities		3,069		23		—			3,092
Asset-backed securities and other		13,604		70		(8	)		13,666
	$	74,219	$	498	$	(162	)	$	74,555

	August 27, 2011
	Amortized		Gross		Gross
	Cost		Unrealized		Unrealized
(in thousands)	Basis		Gains		Losses			Fair Value
Corporate securities	$	26,261	$	229	$	(45	)	$	26,445
Government bonds		29,464		343		—			29,807
Mortgage-backed securities		4,291		55		—			4,346
Asset-backed securities and other		12,377		156		—			12,533
	$	72,393	$	783	$	(45	)	$	73,131

The debt securities held at November 19, 2011, had effective maturities ranging from less than one year to approximately 3 years. The Company did not realize any material gains or losses on its marketable securities during the twelve week period ended November 19, 2011.

The Company holds twenty-seven securities that are in an unrealized loss position of approximately $162 thousand at November 19, 2011. The Company has the intent and ability to hold these investments until recovery of fair value or maturity, and does not deem the investments to be impaired on an other than temporary basis. In evaluating whether the securities are deemed to be impaired on an other than temporary basis, the Company considers factors such as the duration and severity of the loss position, the credit worthiness of the investee, the term to maturity and the intent and ability to hold the investments until maturity or until recovery of fair value.

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Fair Value Measurements (Details Textuals) (Fair Value, Measurements, Recurring [Member], USD $) In Thousands, unless otherwise specified	Nov. 19, 2011	Aug. 27, 2011
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements (Textuals) [Abstract]
Short-term marketable securities	$ 13,046	$ 11,872
Long term marketable securities	$ 61,509	$ 61,259

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Fair Value Measurements (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Thousands, unless otherwise specified	Nov. 19, 2011	Aug. 27, 2011
Company's assets and liabilities measured at fair value on a recurring basis
Other current assets	$ 13,046	$ 11,872
Other long-term assets	61,509	61,259
Total	74,555	73,131
Level 1 [Member]
Company's assets and liabilities measured at fair value on a recurring basis
Other current assets	13,046	11,872
Other long-term assets	55,674	55,390
Total	68,720	67,262
Level 2 [Member]
Company's assets and liabilities measured at fair value on a recurring basis
Other current assets	0	0
Other long-term assets	5,835	5,869
Total	5,835	5,869
Level 3 [Member]
Company's assets and liabilities measured at fair value on a recurring basis
Other current assets	0	0
Other long-term assets	0	0
Total	$ 0	$ 0

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Marketable Securities (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Nov. 19, 2011 SecuritiesHold	Aug. 27, 2011
Available-for-sale marketable securities
Available-For-Sale Marketable Securities, Amortized Cost Basis	$ 74,219	$ 72,393
Available-For-Sale Marketable Securities, Gross Unrealized Gains	498	783
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(162)	(45)
Available-For-Sale Marketable Securities, Fair Value	74,555	73,131
Marketable Securities (Textuals) [Abstract]
Available for sale securities debt maturity period range	Less than one year to approximately 3 years
Number of securities held in unrealized loss position	27
Available for sale securities in continuous unrealized loss position amount	162
Corporate securities [Member]
Available-for-sale marketable securities
Available-For-Sale Marketable Securities, Amortized Cost Basis	27,030	26,261
Available-For-Sale Marketable Securities, Gross Unrealized Gains	146	229
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(136)	(45)
Available-For-Sale Marketable Securities, Fair Value	27,040	26,445
Government bonds [Member]
Available-for-sale marketable securities
Available-For-Sale Marketable Securities, Amortized Cost Basis	30,516	29,464
Available-For-Sale Marketable Securities, Gross Unrealized Gains	259	343
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(18)	0
Available-For-Sale Marketable Securities, Fair Value	30,757	29,807
Mortgage-backed securities [Member]
Available-for-sale marketable securities
Available-For-Sale Marketable Securities, Amortized Cost Basis	3,069	4,291
Available-For-Sale Marketable Securities, Gross Unrealized Gains	23	55
Available-For-Sale Marketable Securities, Gross Unrealized Losses	0	0
Available-For-Sale Marketable Securities, Fair Value	3,092	4,346
Asset-Backed securities and other [Member]
Available-for-sale marketable securities
Available-For-Sale Marketable Securities, Amortized Cost Basis	13,604	12,377
Available-For-Sale Marketable Securities, Gross Unrealized Gains	70	156
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(8)	0
Available-For-Sale Marketable Securities, Fair Value	$ 13,666	$ 12,533

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Derivative Financial Instruments (Details) (USD $)	3 Months Ended			1 Months Ended
	Nov. 19, 2011 ForwardStartingSwap	Nov. 20, 2010	Dec. 12, 2011	Nov. 30, 2010 Loss on expired swaps [Member]	Nov. 20, 2010 Forward Starting Swap, One [Member]	Nov. 20, 2010 Forward Starting Swap, Two [Member]	Nov. 20, 2010 Forward Starting Swap, Three [Member]
Derivative [Line Items]
Notional amount of forward swaps					$ 150,000,000	$ 150,000,000	$ 100,000,000
Fixed rates of the hedges based on LIBOR					3.15%	3.13%	2.57%
Losses recognized in OCI upon expiration of swaps				11,700,000
Derivative Financial Instruments (Textuals) [Abstract]
Number of forward starting swaps	3
Senior notes issued during period	0	500,000,000
Derivative description of terms	The swaps were benchmarked based on the 3-month London InterBank Offered Rate.
Derivative instrument, variable interest rate months of LIBOR	3 months
Ineffective portion recognized of forward starting swaps	0
Accumulated other comprehensive loss related to net unrealized gain (loss), net of tax	4,200,000
Net realized losses associated with terminated interest derivatives reclassified from accumulated other comprehensive loss to interest expense	406,000	43,000
Expected losses reclassified to interest expense			$ 1,700,000

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Fair Value Measurements

3 Months Ended

Nov. 19, 2011

Fair Value Measurements [Abstract]

Fair Value Measurements

Note C — Fair Value Measurements

The Company defines fair value as the price received to transfer an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company uses a hierarchy of valuation inputs to measure fair value.

The hierarchy prioritizes the inputs into three broad levels:

Level 1 inputs—unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access. An active market for the asset or liability is one in which transactions for the asset or liability occur with sufficient frequency and volume to provide ongoing pricing information.

Level 2 inputs—inputs other than quoted market prices included in Level 1 that are observable, either directly or indirectly, for the asset or liability. Level 2 inputs include, but are not limited to, quoted prices for similar assets or liabilities in an active market, quoted prices for identical or similar assets or liabilities in markets that are not active and inputs other than quoted market prices that are observable for the asset or liability, such as interest rate curves and yield curves observable at commonly quoted intervals, volatilities, credit risk and default rates.

Level 3 inputs—unobservable inputs for the asset or liability.

Financial Assets & Liabilities Measured at Fair Value on a Recurring Basis

The Company’s assets and liabilities measured at fair value on a recurring basis were as follows:

	November 19, 2011
(in thousands)	Level 1		Level 2		Level 3		Fair Value
Other current assets	$	13,046	$	—	$	—	$	13,046
Other long-term assets		55,674		5,835		—		61,509
	$	68,720	$	5,835	$	—	$	74,555

	August 27, 2011
(in thousands)	Level 1		Level 2		Level 3		Fair Value
Other current assets	$	11,872	$	—	$	—	$	11,872
Other long-term assets		55,390		5,869		—		61,259
	$	67,262	$	5,869	$	—	$	73,131

At November 19, 2011, the fair value measurement amounts for assets and liabilities recorded in the accompanying Condensed Consolidated Balance Sheet consisted of short-term marketable securities of $13.0 million, which are included within Other current assets, and long-term marketable securities of $61.5 million, which are included in Other long-term assets. The Company’s marketable securities are typically valued at the closing price in the principal active market as of the last business day of the quarter or through the use of other market inputs relating to the securities, including benchmark yields and reported trades. The fair values of the marketable securities, by asset class, are described in “Note D — Marketable Securities”.

Non-Financial Assets measured at Fair Value on a Non-Recurring Basis

Non-financial assets could be required to be measured at fair value on a non-recurring basis in certain circumstances, including the event of impairment. The assets could include assets acquired in an acquisition as well as property, plant and equipment that are determined to be impaired. During the twelve week periods ended November 19, 2011 and November 20, 2010, the Company did not have any significant non-financial assets measured at fair value on a non-recurring basis in periods subsequent to initial recognition.

Financial Instruments not Recognized at Fair Value

The Company has financial instruments, including cash and cash equivalents, accounts receivable, other current assets and accounts payable. The carrying amounts of these financial instruments approximate fair value because of their short maturities. A discussion of the carrying values and fair values of the Company’s debt is included in “Note H — Financing”.

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Merchandise Inventories (Details) (USD $) In Millions, unless otherwise specified	Nov. 19, 2011	Aug. 27, 2011
Merchandise Inventories (Textuals) [Abstract]
Unrecorded adjustment for LIFO value in excess of replacement value	$ 255.0	$ 253.3

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Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Nov. 19, 2011	Aug. 27, 2011
Current assets:
Cash and cash equivalents	$ 96,676	$ 97,606
Accounts receivable	135,695	140,690
Merchandise inventories	2,531,210	2,466,107
Other current assets	79,092	88,022
Total current assets	2,842,673	2,792,425
Property and equipment:
Property and equipment	4,408,429	4,371,872
Less: Accumulated depreciation and amortization	(1,741,324)	(1,702,997)
Property and equipment, net	2,667,105	2,668,875
Goodwill	302,645	302,645
Deferred income taxes	19,312	10,661
Other long-term assets	100,845	94,996
Other long-term assets, total	422,802	408,302
Assets	5,932,580	5,869,602
Current liabilities:
Accounts payable	2,843,741	2,755,853
Accrued expenses and other	444,538	449,327
Income taxes payable	85,222	25,185
Deferred income taxes	170,048	166,449
Short-term borrowings	35,417	34,082
Total current liabilities	3,578,966	3,430,896
Long-term debt	3,318,900	3,317,600
Other long-term liabilities	381,813	375,338
Commitments and contingencies
Stockholders' deficit:
Preferred stock, authorized 1,000 shares; no shares issued
Common stock, par value $.01 per share, authorized 200,000 shares; 44,245 shares issued and 39,316 shares outstanding as of November 19, 2011; 44,084 shares issued and 40,109 shares outstanding as of August 27, 2011	442	441
Additional paid-in capital	628,109	591,384
Retained deficit	(452,873)	(643,998)
Accumulated other comprehensive loss	(130,644)	(119,691)
Treasury stock, at cost	(1,392,133)	(1,082,368)
Total stockholders' deficit	(1,347,099)	(1,254,232)
Liabilities and Stockholders' Deficit	$ 5,932,580	$ 5,869,602

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General

3 Months Ended

Nov. 19, 2011

General [Abstract]

General

Note A — General

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles for interim financial information and with instructions to Form 10-Q and Article 10 of Regulation S-X of the Securities and Exchange Commission’s (the “SEC”) rules and regulations. Accordingly, they do not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments, including normal recurring accruals, considered necessary for a fair presentation have been included. For further information, refer to the consolidated financial statements and related notes included in the AutoZone, Inc. (“AutoZone” or the “Company”) Annual Report on Form 10-K for the year ended August 27, 2011.

Operating results for the twelve weeks ended November 19, 2011, are not necessarily indicative of the results that may be expected for the fiscal year ending August 25, 2012. Each of the first three quarters of AutoZone’s fiscal year consists of 12 weeks, and the fourth quarter consists of 16 or 17 weeks. The fourth quarters for fiscal 2011 and fiscal 2012 each have 16 weeks. Additionally, the Company’s business is somewhat seasonal in nature, with the highest sales generally occurring during the months of February through September and the lowest sales generally occurring in the months of December and January.

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Financing (Details Textuals) (USD $)	3 Months Ended
	Nov. 19, 2011	Nov. 20, 2010	Sep. 13, 2011	Aug. 27, 2011
Debt Instrument [Line Items]
Amount available under credit facility			$ 800,000,000
Expiration of credit facility	September 2011
Letter of credit facility maximum borrowing capacity			1,250,000,000
Proceeds from issuance of debt	0	500,000,000
Financing (Textuals) [Abstract]
Remaining borrowing capacity under revolving credit facility	996,600,000
Short-term borrowings	35,417,000			34,082,000
Interest rate on short-term borrowings	4.53%
Interest accrual on foreign currency loans the basis points	Interest accrues on Eurodollar loans at a defined Eurodollar rate, defined as LIBOR plus the applicable percentage, as defined in the revolving credit facility, depending upon the Company’s senior, unsecured, (non-credit enhanced) long-term debt rating.
Fair value of the Company's debt	3,609,000,000			3,633,000,000
Excess (shortfall) of fair value of debt over (from) carrying value	254,700,000			281,000,000
Repayment of commercial paper borrowings	0	199,300,000
4.750% Senior Notes that matured on November 15, 2010 [Member]
Debt Instrument [Line Items]
Stated interest rate percentage		4.75%
5.875% Senior Notes due October 2012, effective interest rate of 6.33% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	5.875%
Effective interest rate	6.33%
4.375% Senior Notes due June 2013, effective interest rate of 5.65% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	4.375%
Effective interest rate	5.65%
6.500% Senior Notes due January 2014, effective interest rate of 6.63% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	6.50%
Effective interest rate	6.63%
5.750% Senior Notes due January 2015, effective interest rate of 5.89% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	5.75%
Effective interest rate	5.89%
5.500% Senior Notes due November 2015, effective interest rate of 4.86% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	5.50%
Effective interest rate	4.86%
6.950% Senior Notes due June 2016, effective interest rate of 7.09% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	6.95%
Effective interest rate	7.09%
7.125% Senior Notes due August 2018, effective interest rate of 7.28% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	7.125%
Effective interest rate	7.28%
4.000% Senior Notes due November 2020, effective interest rate of 4.43% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	4.00%
Effective interest rate	4.43%
Proceeds from issuance of debt		500,000,000
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Letter of credit facility maximum borrowing capacity			175,000,000
Commercial paper, weighted average interest rate of 0.37% and 0.35% at November 19, 2011 and August 27, 2011, respectively [Member]
Debt Instrument [Line Items]
Commercial paper borrowings, maturity period (in months)	12 months
Weighted average interest rate of commercial paper	0.37%			0.35%
Letters of Credit [Member]
Debt Instrument [Line Items]
Letter of credit facility maximum borrowing capacity			200,000,000
Revolving credit facility, which was scheduled to expire in July 2012 [Member]
Debt Instrument [Line Items]
Expiration of credit facility	July 2012
Letter of credit facility maximum borrowing capacity			$ 1,000,000,000

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Financing (Tables)

3 Months Ended

Nov. 19, 2011

Financing [Abstract]

Components of Company's long-term debt

	November 19,		August 27,
(in thousands)	2011		2011
5.875% Senior Notes due October 2012, effective interest rate of 6.33%	$	300,000	$	300,000
4.375% Senior Notes due June 2013, effective interest rate of 5.65%		200,000		200,000
6.500% Senior Notes due January 2014, effective interest rate of 6.63%		500,000		500,000
5.750% Senior Notes due January 2015, effective interest rate of 5.89%		500,000		500,000
5.500% Senior Notes due November 2015, effective interest rate of 4.86%		300,000		300,000
6.950% Senior Notes due June 2016, effective interest rate of 7.09%		200,000		200,000
7.125% Senior Notes due August 2018, effective interest rate of 7.28%		250,000		250,000
4.000% Senior Notes due November 2020, effective interest rate of 4.43%		500,000		500,000
Commercial paper, weighted average interest rate of 0.37% and 0.35% at November 19, 2011 and August 27, 2011, respectively		568,900		567,600
	$	3,318,900	$	3,317,600

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Stock Repurchase Program (Details) (USD $)	1 Months Ended		3 Months Ended	167 Months Ended
	Dec. 15, 2011	Sep. 28, 2011	Nov. 19, 2011	Nov. 19, 2011
Stock Repurchase Program (Textuals) [Abstract]
Stock Repurchased Authorized Value		$ 10,400,000,000
Stock Repurchased During Period, Shares	0		954,389	128,300,000
Purchase of treasury stock	0		309,800,000	10,500,000,000
Remaining Value Authorized For Share Repurchases			658,900,000	658,900,000
Stock repurchase authorized during the period, value		750,000,000
Stock repurchase authorized amended value		$ 11,150,000,000	$ 11,150,000,000
Treasury stock acquired repurchase authorization			From January 1, 1998 to November 19, 2011, the Company has repurchased a total of 128.3 million shares at an aggregate cost of $10.5 billion, including 954,389 shares of its common stock at an aggregate cost of $309.8 million during the twelve week period ended November 19, 2011. On September 28, 2011, the Board voted to increase the authorization by $750 million to raise the cumulative share repurchase authorization from $10.4 billion to $11.15 billion. Considering cumulative repurchases as of November 19, 2011, the Company had $658.9 million remaining under the Board’s authorization to repurchase its common stock. The Company had no share repurchases of its common stock subsequent to November 19, 2011.

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Segment Reporting (Tables)

3 Months Ended

Nov. 19, 2011

Segment Reporting [Abstract]

Segment results

	Twelve Weeks Ended
	November 19,			November 20,
(in thousands)	2011			2010
Net Sales
Auto Parts Stores	$	1,884,138		$	1,754,987
Other		40,203			36,675
Total	$	1,924,341		$	1,791,662
Segment Profit
Auto Parts Stores	$	952,357		$	878,865
Other		31,270			28,883
Gross profit		983,627			907,748
Operating, selling, general and administrative expenses		(642,693	)		(601,627	)
Interest expense, net		(39,094	)		(37,253	)
Income before income taxes	$	301,840		$	268,868

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Share-Based Payments

3 Months Ended

Nov. 19, 2011

Share-Based Payments [Abstract]

Share-Based Payments

Note B — Share-Based Payments

AutoZone recognizes compensation expense for share-based payments based on the fair value of the awards at the grant date. Share-based payments include stock option grants, restricted stock grants, restricted stock unit grants and the discount on shares sold to employees under share purchase plans. Additionally, directors’ fees are paid in restricted stock units with value equivalent to the value of shares of common stock as of the grant date. The change in fair value of liability-based stock awards is also recognized in share-based compensation expense.

Total share-based compensation expense (a component of Operating, selling, general and administrative expenses) was $7.6 million for the twelve week period ended November 19, 2011, and was $5.1 million for the comparable prior year period.

During the twelve week period ended November 19, 2011, 162,510 shares of stock options were exercised at a weighted average exercise price of $118.12. In the comparable prior year period, 218,666 shares of stock options were exercised at a weighted average exercise price of $104.16.

During the twelve week period ended November 19, 2011, the Company made stock option grants of 375,630 shares. The Company granted options to purchase 423,520 shares during the comparable prior year period. The weighted average fair value of the stock option awards granted during the twelve week periods ended November 19, 2011 and November 20, 2010, using the Black-Scholes-Merton multiple-option pricing valuation model, was $93.04 and $58.53 per share, respectively, using the following weighted average key assumptions:

	Twelve Weeks Ended
	November 19,			November 20,
	2011			2010
Expected price volatility		31	%		31	%
Risk-free interest rate		0.7	%		1.0	%
Weighted average expected lives (in years)		5.3			4.3
Forfeiture rate		10	%		10	%
Dividend yield		0	%		0	%

See AutoZone’s Annual Report on Form 10-K for the year ended August 27, 2011 for a discussion regarding the methodology used in developing AutoZone’s assumptions to determine the fair value of the option awards and a description of AutoZone’s 2011 Equity Incentive Award Plan and the 2011 Director Compensation Program.

For the twelve week period ended November 19, 2011, 372,170 stock options were excluded from the diluted earnings per share computation because they would have been anti-dilutive. For the comparable prior year period, no anti-dilutive shares were excluded from the diluted earnings per share computation.

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Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	Nov. 19, 2011	Aug. 27, 2011
Stockholders' deficit:
Preferred stock, shares authorized	1,000	1,000
Preferred stock, shares issued
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	200,000	200,000
Common stock, shares issued	44,245	44,084
Common stock, shares outstanding	39,316	40,109

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Segment Reporting

3 Months Ended

Nov. 19, 2011

Segment Reporting [Abstract]

Segment Reporting

Note L — Segment Reporting

The Company’s two operating segments (Domestic Auto Parts and Mexico) are aggregated as one reportable segment: Auto Parts Stores. The criteria the Company used to identify the reportable segment are primarily the nature of the products the Company sells and the operating results that are regularly reviewed by the Company’s chief operating decision maker to make decisions about the resources to be allocated to the business units and to assess performance. The accounting policies of the Company’s reportable segment are the same as those described in Note A in its Annual Report on Form 10-K for the year ended August 27, 2011.

The Auto Parts Stores segment is a retailer and distributor of automotive parts and accessories through the Company’s 4,832 stores in the United States, including Puerto Rico, and Mexico. Each store carries an extensive product line for cars, sport utility vehicles, vans and light trucks, including new and remanufactured automotive hard parts, maintenance items, accessories and non-automotive products.

The Other category reflects business activities that are not separately reportable, including ALLDATA, which produces, sells and maintains diagnostic and repair information software used in the automotive repair industry, and E-commerce, which includes direct sales to customers through www.autozone.com.

The Company evaluates its reportable segment primarily on the basis of net sales and segment profit, which is defined as gross profit. Segment results for the periods presented were as follows:

	Twelve Weeks Ended
	November 19,			November 20,
(in thousands)	2011			2010
Net Sales
Auto Parts Stores	$	1,884,138		$	1,754,987
Other		40,203			36,675
Total	$	1,924,341		$	1,791,662
Segment Profit
Auto Parts Stores	$	952,357		$	878,865
Other		31,270			28,883
Gross profit		983,627			907,748
Operating, selling, general and administrative expenses		(642,693	)		(601,627	)
Interest expense, net		(39,094	)		(37,253	)
Income before income taxes	$	301,840		$	268,868

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Document and Entity Information	3 Months Ended
	Nov. 19, 2011	Dec. 12, 2011
Document and Entity Information [Abstract]
Entity Registrant Name	AUTOZONE INC
Entity Central Index Key	0000866787
Document Type	10-Q
Document Period End Date	Nov. 19, 2011
Amendment Flag	false
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--08-25
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		39,359,829

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Share-Based Payments (Tables)

3 Months Ended

Nov. 19, 2011

Share-Based Payments [Abstract]

Weighted average fair value of the stock option awards granted, weighted average key assumptions

	Twelve Weeks Ended
	November 19,			November 20,
	2011			2010
Expected price volatility		31	%		31	%
Risk-free interest rate		0.7	%		1.0	%
Weighted average expected lives (in years)		5.3			4.3
Forfeiture rate		10	%		10	%
Dividend yield		0	%		0	%

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Condensed Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Nov. 19, 2011	Nov. 20, 2010
Condensed Consolidated Statements of Income [Abstract]
Net sales	$ 1,924,341	$ 1,791,662
Cost of sales, including warehouse and delivery expenses	940,714	883,914
Gross profit	983,627	907,748
Operating, selling, general and administrative expenses	642,693	601,627
Operating profit	340,934	306,121
Interest expense, net	39,094	37,253
Income before income taxes	301,840	268,868
Income taxes	110,715	96,792
Net income	$ 191,125	$ 172,076
Weighted average shares for basic earnings per share	39,865	44,669
Effect of dilutive stock equivalents	999	965
Adjusted weighted average shares for diluted earnings per share	40,864	45,634
Basic earnings per share	$ 4.79	$ 3.85
Diluted earnings per share	$ 4.68	$ 3.77

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Pension and Savings Plans

3 Months Ended

Nov. 19, 2011

Pension and Savings Plans [Abstract]

Pension and Savings Plans

Note G — Pension and Savings Plans

The components of net periodic pension expense related to the Company’s pension plans consisted of the following:

	Twelve Weeks Ended
	November 19,			November 20,
(in thousands)	2011			2010
Interest cost	$	2,819		$	2,678
Expected return on plan assets		(2,704	)		(2,181	)
Amortization of net loss		2,260			2,653
Net periodic pension expense	$	2,375		$	3,150

The Company makes contributions in amounts at least equal to the minimum funding requirements of the Employee Retirement Income Security Act of 1974, as amended by the Pension Protection Act of 2006. During the twelve week period ended November 19, 2011, the Company made contributions to its funded plan in the amount of $1.3 million. The Company expects to contribute approximately $5.4 million to the plan during the remainder of fiscal 2012; however, a change to the expected cash funding may be impacted by a change in interest rates or a change in the actual or expected return on plan assets.

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Merchandise Inventories

3 Months Ended

Nov. 19, 2011

Merchandise Inventories [Abstract]

Merchandise Inventories

Note F — Merchandise Inventories

Inventories are stated at the lower of cost or market using the last-in, first-out (“LIFO”) method for domestic inventories and the first-in, first-out (“FIFO”) method for Mexico inventories. Included in inventories are related purchasing, storage and handling costs. Due to price deflation on the Company’s merchandise purchases, the Company’s domestic inventory balances are effectively maintained under the FIFO method. The Company’s policy is not to write up inventory in excess of replacement cost. The cumulative balance of this unrecorded adjustment, which will be reduced upon experiencing price inflation on the Company’s merchandise purchases, was $255.0 million at November 19, 2011, and $253.3 million at August 27, 2011.

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Comprehensive Income (Tables)

3 Months Ended

Nov. 19, 2011

Comprehensive Income [Abstract]

Comprehensive Income

	Twelve Weeks Ended
	November 19,			November 20,
(in thousands)	2011			2010
Net income	$	191,125		$	172,076
Foreign currency translation adjustments		(23,987	)		12,668
Net impact from derivative instruments		2,877			(1,059	)
Pension liability adjustments		10,419			1,623
Unrealized losses from marketable securities		(261	)		(73	)
Comprehensive income	$	180,173		$	185,235

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Fair Value Measurements (Tables)

3 Months Ended

Nov. 19, 2011

Fair Value Measurements [Abstract]

Company's assets and liabilities measured at fair value on a recurring basis

	November 19, 2011
(in thousands)	Level 1		Level 2		Level 3		Fair Value
Other current assets	$	13,046	$	—	$	—	$	13,046
Other long-term assets		55,674		5,835		—		61,509
	$	68,720	$	5,835	$	—	$	74,555

	August 27, 2011
(in thousands)	Level 1		Level 2		Level 3		Fair Value
Other current assets	$	11,872	$	—	$	—	$	11,872
Other long-term assets		55,390		5,869		—		61,259
	$	67,262	$	5,869	$	—	$	73,131

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Comprehensive Income

3 Months Ended

Nov. 19, 2011

Comprehensive Income [Abstract]

Comprehensive Income

Note J — Comprehensive Income

Comprehensive income includes foreign currency translation adjustments; the impact from certain derivative financial instruments designated and effective as cash flow hedges, including changes in fair value, as applicable; the reclassification of gains and/or losses from Accumulated other comprehensive loss to net income to offset the earnings impact of the underlying items being hedged; pension liability adjustments and changes in the fair value of certain investments classified as available-for-sale.

Comprehensive income consisted of the following:

	Twelve Weeks Ended
	November 19,			November 20,
(in thousands)	2011			2010
Net income	$	191,125		$	172,076
Foreign currency translation adjustments		(23,987	)		12,668
Net impact from derivative instruments		2,877			(1,059	)
Pension liability adjustments		10,419			1,623
Unrealized losses from marketable securities		(261	)		(73	)
Comprehensive income	$	180,173		$	185,235

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Financing

3 Months Ended

Nov. 19, 2011

Financing [Abstract]

Financing

Note H — Financing

The Company’s long-term debt consisted of the following:

	November 19,		August 27,
(in thousands)	2011		2011
5.875% Senior Notes due October 2012, effective interest rate of 6.33%	$	300,000	$	300,000
4.375% Senior Notes due June 2013, effective interest rate of 5.65%		200,000		200,000
6.500% Senior Notes due January 2014, effective interest rate of 6.63%		500,000		500,000
5.750% Senior Notes due January 2015, effective interest rate of 5.89%		500,000		500,000
5.500% Senior Notes due November 2015, effective interest rate of 4.86%		300,000		300,000
6.950% Senior Notes due June 2016, effective interest rate of 7.09%		200,000		200,000
7.125% Senior Notes due August 2018, effective interest rate of 7.28%		250,000		250,000
4.000% Senior Notes due November 2020, effective interest rate of 4.43%		500,000		500,000
Commercial paper, weighted average interest rate of 0.37% and 0.35% at November 19, 2011 and August 27, 2011, respectively		568,900		567,600
	$	3,318,900	$	3,317,600

As of November 19, 2011, the commercial paper borrowings and the 5.875% Senior Notes due October 2012 mature in the next twelve months, but are classified as long-term in the accompanying Condensed Consolidated Balance Sheets, as the Company has the ability and intent to refinance them on a long-term basis. Specifically, excluding the effect of commercial paper borrowings, the Company had $996.6 million of availability under its $1.0 billion revolving credit facility, expiring in September 2016, which would allow it to replace these short-term obligations with long-term financing.

In addition to the long-term debt discussed above, as of November 19, 2011, the Company had $35.4 million of short-term borrowings that are scheduled to mature in the next 12 months. The short-term borrowings are unsecured, peso-denominated borrowings and accrued interest at 4.53% as of November 19, 2011.

In September 2011, the Company amended and restated its $800 million revolving credit facility, which was scheduled to expire in July 2012. The capacity under the revolving credit facility was increased to $1.0 billion. This credit facility is available to primarily support commercial paper borrowings, letters of credit and other short-term unsecured bank loans. The capacity of the credit facility may be increased to $1.250 billion prior to the maturity date at the Company’s election and subject to bank credit capacity and approval, may include up to $200 million in letters of credit, and may include up to $175 million in capital leases each fiscal year. Under the revolving credit facility, the Company may borrow funds consisting of Eurodollar loans or base rate loans. Interest accrues on Eurodollar loans at a defined Eurodollar rate, defined as LIBOR plus the applicable percentage, as defined in the revolving credit facility, depending upon the Company’s senior, unsecured, (non-credit enhanced) long-term debt rating. Interest accrues on base rate loans as defined in the credit facility. The Company also has the option to borrow funds under the terms of a swingline loan subfacility. The revolving credit facility expires in September 2016.

On November 15, 2010, the Company issued $500 million in 4.000% Senior Notes due 2020 under the Company’s shelf registration statement filed with the SEC on July 29, 2008 (the “Shelf Registration”). The Shelf Registration allows the Company to sell an indeterminate amount in debt securities to fund general corporate purposes, including repaying, redeeming or repurchasing outstanding debt and for working capital, capital expenditures, new store openings, stock repurchases and acquisitions. The Company used the proceeds from the issuance of debt to repay the principal due relating to the $199.3 million in 4.750% Senior Notes that matured on November 15, 2010, to repay a portion of the commercial paper borrowings and for general corporate purposes.

The fair value of the Company’s debt was estimated at $3.609 billion as of November 19, 2011, and $3.633 billion as of August 27, 2011, based on the quoted market prices for the same or similar issues or on the current rates available to the Company for debt of the same terms. Such fair value is greater than the carrying value of debt by $254.7 million at November 19, 2011, and $281.0 million at August 27, 2011.

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Stock Repurchase Program

3 Months Ended

Nov. 19, 2011

Stock Repurchase Program [Abstract]

Stock Repurchase Program

Note I — Stock Repurchase Program

From January 1, 1998 to November 19, 2011, the Company has repurchased a total of 128.3 million shares at an aggregate cost of $10.5 billion, including 954,389 shares of its common stock at an aggregate cost of $309.8 million during the twelve week period ended November 19, 2011. On September 28, 2011, the Board voted to increase the authorization by $750 million to raise the cumulative share repurchase authorization from $10.4 billion to $11.15 billion. Considering cumulative repurchases as of November 19, 2011, the Company had $658.9 million remaining under the Board’s authorization to repurchase its common stock. The Company had no share repurchases of its common stock subsequent to November 19, 2011.

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Litigation

3 Months Ended

Nov. 19, 2011

Litigation [Abstract]

Litigation

Note K — Litigation

The Company was a defendant in a lawsuit entitled “Coalition for a Level Playing Field, L.L.C., et al., v. AutoZone, Inc. et al.,” filed in the U.S. District Court for the Southern District of New York in October 2004. The case was originally filed by more than 200 plaintiffs, which are principally automotive aftermarket warehouse distributors and jobbers, against a number of defendants, including automotive aftermarket retailers and aftermarket automotive parts manufacturers. In the amended complaint, the plaintiffs alleged, inter alia, that some or all of the automotive aftermarket retailer defendants had knowingly received, in violation of the Robinson-Patman Act (the “Act”), from various of the manufacturer defendants benefits such as volume discounts, rebates, early buy allowances and other allowances, fees, inventory without payment, sham advertising and promotional payments, a share in the manufacturers’ profits, benefits of pay-on-scan purchases, implementation of radio frequency identification technology, and excessive payments for services purportedly performed for the manufacturers. Additionally, a subset of plaintiffs alleged a claim of fraud against the automotive aftermarket retailer defendants based on discovery issues in a prior litigation involving similar claims under the Act. In the prior litigation, the discovery dispute, as well as the underlying claims, was decided in favor of AutoZone and the other automotive aftermarket retailer defendants who proceeded to trial, pursuant to a unanimous jury verdict which was affirmed by the Second Circuit Court of Appeals. In the current litigation, the plaintiffs sought an unspecified amount of damages (including statutory trebling), attorneys’ fees, and a permanent injunction prohibiting the aftermarket retailer defendants from inducing and/or knowingly receiving discriminatory prices from any of the aftermarket manufacturer defendants and from opening up any further stores to compete with the plaintiffs as long as the defendants allegedly continue to violate the Act.

In an order dated September 7, 2010, and issued on September 16, 2010, the court granted motions to dismiss all claims against AutoZone and its co-defendant competitors and suppliers. Based on the record in the prior litigation, the court dismissed with prejudice all overlapping claims — that is, those covering the same time periods covered by the prior litigation and brought by the judgment plaintiffs in the prior litigation. The court also dismissed with prejudice the plaintiffs’ attempt to revisit discovery disputes from the prior litigation. Further, with respect to the other claims under the Act, the court found that the factual statements contained in the complaint fall short of what would be necessary to support a plausible inference of unlawful price discrimination. Finally, the court held that the AutoZone pay-on-scan program is a difference in non-price terms that are not governed by the Act. The court ordered the case closed, but also stated that “in an abundance of caution the Court [was] defer[ring] decision on whether to grant leave to amend to allow plaintiff an opportunity to propose curative amendments.” The plaintiffs filed a motion for leave to amend their complaint and attached a proposed Third Amended and Supplemental Complaint (the “Third Amended Complaint”) on behalf of four plaintiffs. The Third Amended Complaint repeated and expanded certain allegations from previous complaints, asserting two claims under the Act, but stated that all other plaintiffs have withdrawn their claims, and that, inter alia, Chief Auto Parts, Inc. had been dismissed as a defendant. AutoZone and the co-defendants filed an opposition to the motion seeking leave to amend.

In an order dated September 28, 2011, the court denied the four remaining plaintiffs’ motion for leave to file a Third Amended Complaint because the proposed Third Amended Complaint failed to address deficiencies previously identified by the court. On October 26, 2011, an appeal of the dismissal was filed by 143 plaintiffs to the United States Court of appeals for the Second Circuit. Briefing by both sides will proceed over the next several months and will likely be followed by oral argument.

The Company believes this suit to be without merit and is vigorously defending against it. The Company is unable to estimate a loss or possible range of loss.

In 2004, the Company acquired a store site in Mount Ephraim, New Jersey that had previously been the site of a gasoline service station and contained evidence of groundwater contamination. Upon acquisition, the Company voluntarily reported the groundwater contamination issue to the New Jersey Department of Environmental Protection and entered into a Voluntary Remediation Agreement providing for the remediation of the contamination associated with the property. The Company has conducted and paid for (at an immaterial cost to the Company) remediation of visible contamination on the property and is investigating, and will be addressing, potential vapor intrusion impacts in downgradient residences and businesses. The New Jersey Department of Environmental Protection has indicated that it will assert that the Company is liable for the downgradient impacts under a joint and severable liability theory, and the Company intends to contest any such assertion. Pursuant to the Voluntary Remediation Agreement, upon completion of all remediation required by the agreement, the Company believes it should be eligible to be reimbursed up to 75 percent of qualified remediation costs by the State of New Jersey. The Company has asked the state for clarification that the agreement applies to off-site work, and the state is considering the request. Although the aggregate amount of additional costs that the Company may incur pursuant to the remediation cannot currently be ascertained, the Company does not currently believe that fulfillment of its obligations under the agreement or otherwise will result in costs that are material to its financial condition, results of operations or cash flow.

The Company is involved in various other legal proceedings incidental to the conduct of its business, including several lawsuits containing class-action allegations in which the plaintiffs are current and former hourly and salaried employees who allege various wage and hour violations and unlawful termination practices. The Company does not currently believe that, either individually or in the aggregate, these matters will result in liabilities material to the Company’s financial condition, results of operations or cash flows.

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Financing (Details) (USD $) In Thousands, unless otherwise specified	Nov. 19, 2011	Aug. 27, 2011
The Company's long-term debt consisted of the following:
Long-term debt	$ 3,318,900	$ 3,317,600
5.875% Senior Notes due October 2012, effective interest rate of 6.33% [Member]
The Company's long-term debt consisted of the following:
Long-term debt	300,000	300,000
4.375% Senior Notes due June 2013, effective interest rate of 5.65% [Member]
The Company's long-term debt consisted of the following:
Long-term debt	200,000	200,000
6.500% Senior Notes due January 2014, effective interest rate of 6.63% [Member]
The Company's long-term debt consisted of the following:
Long-term debt	500,000	500,000
5.750% Senior Notes due January 2015, effective interest rate of 5.89% [Member]
The Company's long-term debt consisted of the following:
Long-term debt	500,000	500,000
5.500% Senior Notes due November 2015, effective interest rate of 4.86% [Member]
The Company's long-term debt consisted of the following:
Long-term debt	300,000	300,000
6.950% Senior Notes due June 2016, effective interest rate of 7.09% [Member]
The Company's long-term debt consisted of the following:
Long-term debt	200,000	200,000
7.125% Senior Notes due August 2018, effective interest rate of 7.28% [Member]
The Company's long-term debt consisted of the following:
Long-term debt	250,000	250,000
4.000% Senior Notes due November 2020, effective interest rate of 4.43% [Member]
The Company's long-term debt consisted of the following:
Long-term debt	500,000	500,000
Commercial paper, weighted average interest rate of 0.37% and 0.35% at November 19, 2011 and August 27, 2011, respectively [Member]
The Company's long-term debt consisted of the following:
Long-term debt	$ 568,900	$ 567,600

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Pension and Savings Plans (Tables)

3 Months Ended

Nov. 19, 2011

Pension and Savings Plans [Abstract]

Net periodic pension expense

	Twelve Weeks Ended
	November 19,			November 20,
(in thousands)	2011			2010
Interest cost	$	2,819		$	2,678
Expected return on plan assets		(2,704	)		(2,181	)
Amortization of net loss		2,260			2,653
Net periodic pension expense	$	2,375		$	3,150

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Share-Based Payments (Details)	3 Months Ended
	Nov. 19, 2011 Year	Nov. 20, 2010 Year
Weighted average fair value of the stock option awards granted, weighted average key assumptions
Expected price volatility	31.00%	31.00%
Risk-free interest rate	0.70%	1.00%
Weighted average expected lives (in years)	5.3	4.3
Forfeiture rate	10.00%	10.00%
Dividend yield	0.00%	0.00%

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Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Nov. 19, 2011	Nov. 20, 2010
Cash flows from operating activities:
Net income	$ 191,125	$ 172,076
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of property and equipment	48,647	44,291
Amortization of debt origination fees	1,738	1,725
Income tax benefit from exercise of stock options	(11,157)	(8,994)
Deferred income taxes	6,241	5,454
Share-based compensation expense	7,562	5,071
Changes in operating assets and liabilities:
Accounts receivable	4,856	9,622
Merchandise inventories	(75,122)	(49,303)
Accounts payable and accrued expenses	87,317	78,929
Income taxes payable	70,891	88,961
Other, net	10,196	9,521
Net cash provided by operating activities	342,294	357,353
Cash flows from investing activities:
Capital expenditures	(61,924)	(45,811)
Purchase of marketable securities	(11,091)	(9,923)
Proceeds from sale of marketable securities	10,069	7,337
Disposal of capital assets	1,057	526
Net cash used in investing activities	(61,889)	(47,871)
Cash flows from financing activities:
Net proceeds (payments) of commercial paper	1,300	(337,300)
Net proceeds from short-term borrowings	4,496	5,738
Proceeds from issuance of debt	0	500,000
Repayment of debt	0	(199,300)
Net proceeds from sale of common stock	18,561	21,952
Purchase of treasury stock	(309,765)	(299,655)
Income tax benefit from exercise of stock options	11,157	8,994
Payments of capital lease obligations	(6,448)	(5,131)
Other, net	0	(5,450)
Net cash used in financing activities	(280,699)	(310,152)
Effect of exchange rate changes on cash	(636)	403
Net decrease in cash and cash equivalents	(930)	(267)
Cash and cash equivalents at beginning of period	97,606	98,280
Cash and cash equivalents at end of period	$ 96,676	$ 98,013

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Derivative Financial Instruments

3 Months Ended

Nov. 19, 2011

Derivative Financial Instruments [Abstract]

Derivative Financial Instruments

Note E — Derivative Financial Instruments

During the first quarter of fiscal 2011, the Company was party to three forward starting swaps, of which two were entered into during the fourth quarter of fiscal 2010 and one was entered into during the first quarter of fiscal 2011. These agreements were designated as cash flow hedges and were used to hedge the exposure to variability in future cash flows resulting from changes in variable interest rates related to the $500 million Senior Note debt issuance during the first quarter of fiscal 2011. The swaps had notional amounts of $150 million, $150 million and $100 million with associated fixed rates of 3.15%, 3.13%, and 2.57%, respectively. The swaps were benchmarked based on the 3-month London InterBank Offered Rate (“LIBOR”). These swaps expired in November 2010 and resulted in a loss of $11.7 million, which has been deferred in Accumulated other comprehensive loss and will be reclassified to Interest expense over the life of the underlying debt. The hedges remained highly effective until they expired; therefore, no ineffectiveness was recognized in earnings.

At November 19, 2011, the Company had $4.2 million recorded in Accumulated other comprehensive loss related to net realized losses associated with terminated interest rate swap derivatives which were designated as hedges. Net losses are amortized into Interest expense over the remaining life of the associated debt. During the twelve week period ended November 19, 2011, the Company reclassified $406 thousand of net losses from Accumulated other comprehensive loss to Interest expense. In the comparable prior year period, the Company reclassified $43 thousand of net losses from Accumulated other comprehensive loss to Interest expense. The Company expects to reclass $1.7 million of net losses from Accumulated other comprehensive loss to Interest expense over the next 12 months.

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Share-Based Payments (Details Textuals) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Nov. 19, 2011	Nov. 20, 2010
Share-Based Payments (Textuals) [Abstract]
Total share-based expense related to stock options and share purchase plans	$ 7.6	$ 5.1
Stock options exercised - Shares	162,510	218,666
Stock options exercised - Weighted average exercise price	$ 118.12	$ 104.16
Stock options granted	375,630	423,520
Weighted average grant date fair value of options granted	$ 93.04	$ 58.53
Anti-dilutive shares excluded from the computation of earnings per share	372,170	0

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Litigation (Details)	3 Months Ended
	Nov. 19, 2011 Plaintiffs
Litigation (Textuals) [Abstract]
Number of plaintiffs in lawsuit entitled Coalition for a Level Playing Field, L.L.C., et al., v. AutoZone, Inc. et al.	More than 200
Site contingency, recovery from third party of environmental remediation cost	In 2004, the Company acquired a store site in Mount Ephraim, New Jersey that had previously been the site of a gasoline service station and contained evidence of groundwater contamination. Upon acquisition, the Company voluntarily reported the groundwater contamination issue to the New Jersey Department of Environmental Protection and entered into a Voluntary Remediation Agreement providing for the remediation of the contamination associated with the property. The Company has conducted and paid for (at an immaterial cost to the Company) remediation of visible contamination on the property and is investigating and will be addressing potential vapor intrusion impacts in downgradient residences and businesses. Pursuant to the Voluntary Remediation Agreement, upon completion of all remediation required by the agreement, the Company is eligible to be reimbursed up to 75 percent of its remediation costs by the State of New Jersey. Although the aggregate amount of additional costs that the Company may incur pursuant to the Voluntary Remediation Agreement cannot currently be ascertained, the Company does not currently believe that fulfillment of its obligations under the agreement will result in costs that are material to its financial condition, results of operations or cash flow.
Reimbursable remediation costs	75.00%
Number of plaintiffs who filed motions for leave and to amend their complaint	4
Number of plaintiffs dismissed	143

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Marketable Securities (Tables)

3 Months Ended

Nov. 19, 2011

Marketable Securities [Abstract]

Available-for-sale marketable securities

	November 19, 2011
	Amortized		Gross		Gross
	Cost		Unrealized		Unrealized
(in thousands)	Basis		Gains		Losses			Fair Value
Corporate securities	$	27,030	$	146	$	(136	)	$	27,040
Government bonds		30,516		259		(18	)		30,757
Mortgage-backed securities		3,069		23		—			3,092
Asset-backed securities and other		13,604		70		(8	)		13,666
	$	74,219	$	498	$	(162	)	$	74,555

	August 27, 2011
	Amortized		Gross		Gross
	Cost		Unrealized		Unrealized
(in thousands)	Basis		Gains		Losses			Fair Value
Corporate securities	$	26,261	$	229	$	(45	)	$	26,445
Government bonds		29,464		343		—			29,807
Mortgage-backed securities		4,291		55		—			4,346
Asset-backed securities and other		12,377		156		—			12,533
	$	72,393	$	783	$	(45	)	$	73,131