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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

(Mark One)

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

For the quarterly period ended June 30, 2006

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 0-21796

CDW Corporation

(Exact name of registrant as specified in its charter)

Illinois		36-3310735
(State or other jurisdiction of		(I.R.S. Employer
incorporation or organization)		Identification No.)
200 N. Milwaukee Ave.		60061
Vernon Hills, Illinois		(Zip Code)
(Address of principal executive offices)

(847) 465-6000
(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 period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes þ No o

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

Large accelerated filer þ                    Accelerated filer o                     Non-accelerated filer 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.

As of August 2, 2006, 95,471,263 common shares were issued and 77,928,508 were outstanding.

CDW CORPORATION AND SUBSIDIARIES
INDEX

						Page No.
PART I.		Financial Information
		Item 1.		Financial Statements (unaudited):
				Condensed Consolidated Balance Sheets — June 30, 2006 and December 31, 2005			1
				Condensed Consolidated Statements of Income — Three and six months ended June 30, 2006 and 2005			2
				Condensed Consolidated Statement of Shareholders’ Equity — Six months ended June 30, 2006			3
				Condensed Consolidated Statements of Cash Flows — Six months ended June 30, 2006 and 2005			4
				Notes to Condensed Consolidated Financial Statements			5
		Item 2.		Management’s Discussion and Analysis of Financial Condition and Results of Operations			17
		Item 3.		Quantitative and Qualitative Disclosures About Market Risk			25
		Item 4.		Controls and Procedures			25
PART II.		Other Information
		Item 1.		Legal Proceedings			25
		Item 1A.		Risk Factors			26
		Item 2.		Unregistered Sales of Equity Securities and Use of Proceeds			26
		Item 4.		Submission of Matters to a Vote of Security Holders			27
		Item 6.		Exhibits			28
				Signature			29
Revolving Note
Certification of Chief Executive Officer
Certification of Chief Financial Officer
1350 Certification of Chief Executive Officer
1350 Certification of Chief Financial Officer

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Part I. Financial Information

Item 1. Financial Statements

CDW CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands)

(unaudited)

		June 30,				December 31,
		2006				2005
Assets
Current assets:
Cash and cash equivalents		$	119,533			$	201,250
Marketable securities			325,392				370,500
Accounts receivable, net of allowance for doubtful accounts of $9,574 and $9,564, respectively			689,824				637,245
Merchandise inventory			257,035				243,564
Miscellaneous receivables			50,953				27,848
Deferred income taxes			14,674				12,562
Prepaid expenses			12,072				8,274
Total current assets			1,469,483				1,501,243
Marketable securities			59,261				39,176
Property and equipment, net			115,780				97,277
Other assets			11,187				11,360
Total assets		$	1,655,711			$	1,649,056
Liabilities and Shareholders’ Equity
Current liabilities:
Accounts payable		$	277,317			$	245,201
Accrued expenses:
Compensation			40,016				42,585
Income taxes			17,573				7,409
Sales taxes			18,869				21,473
Advertising			24,172				18,193
Other			34,134				32,900
Total current liabilities			412,081				367,761
Long-term liabilities			22,138				16,730
Shareholders’ equity:
Preferred shares, $1.00 par value; 5,000 shares authorized; none issued			—				—
Common shares, $.01 par value; 500,000 shares authorized; 95,361 and 93,447 shares issued, respectively			954				934
Paid-in capital			581,679				507,832
Retained earnings			1,499,329				1,405,263
Unearned compensation			—				(400	)
Accumulated other comprehensive income			725				163
			2,082,687				1,913,792
Less cost of common shares in treasury; 17,243 shares and 13,483 shares, respectively			(861,195	)			(649,227	)
Total shareholders’ equity			1,221,492				1,264,565
Total liabilities and shareholders’ equity		$	1,655,711			$	1,649,056

The accompanying notes are an integral part of the consolidated financial statements.

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CDW CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(in thousands, except per share data)

(unaudited)

		Three Months Ended June 30,								Six Months Ended June 30,
		2006				2005				2006				2005
Net sales		$	1,633,458			$	1,539,595			$	3,222,087			$	3,014,677
Cost of sales			1,369,421				1,302,117				2,704,161				2,550,770
Gross profit			264,037				237,478				517,926				463,907
Selling and administrative expenses			126,192				105,325				254,940				207,563
Advertising expense			30,007				29,665				60,902				56,126
Income from operations			107,838				102,488				202,084				200,218
Interest income			5,492				3,989				10,699				7,168
Other expense, net			(94	)			(479	)			(1,056	)			(849	)
Income before income taxes			113,236				105,998				211,727				206,537
Income tax provision			40,125				38,937				76,938				78,079
Net income		$	73,111			$	67,061			$	134,789			$	128,458
Earnings per share:
Basic		$	0.93			$	0.82			$	1.70			$	1.57
Diluted		$	0.91			$	0.80			$	1.66			$	1.52
Weighted—average number of common shares outstanding:
Basic			78,994				81,337				79,488				81,975
Diluted			80,564				83,737				81,268				84,521
Dividends per share		$	0.52			$	0.43			$	0.52			$	0.43

The accompanying notes are an integral part of the consolidated financial statements.

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CDW CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENT OF SHAREHOLDERS’ EQUITY

(in thousands)

(unaudited)

																										Accumulated
		Total																								Other
		Shareholders’				Common				Paid-in				Retained				Unearned				Treasury				Comprehensive				Comprehensive
		Equity				Shares				Capital				Earnings				Compensation				Shares				(Loss) Income				Income
Balance at December 31, 2005		$	1,264,565			$	934			$	507,832			$	1,405,263			$	(400	)		$	(649,227	)		$	163
Share-based compensation			7,936				—				7,936				—				—				—				—
Reclass upon adoption of SFAS 123R			—				—				(400	)			—				400				—				—
Issuance of common stock under share-based compensation plans			45,487				20				45,467				—				—				—				—
Excess tax benefit from stock option and restricted stock transactions			20,844				—				20,844				—				—				—				—
Purchase of treasury shares, including forfeitures of restricted stock			(211,968	)			—				—				—				—				(211,968	)			—
Cash dividends			(40,723	)			—				—				(40,723	)			—				—				—
Net income			134,789				—				—				134,789				—				—				—			$	134,789
Net unrealized gains on marketable securities, net of tax			376				—				—				—				—				—				376				376
Foreign currency translation adjustment			186				—				—				—				—				—				186				186
Comprehensive income																														$	135,351
Balance at June 30, 2006		$	1,221,492			$	954			$	581,679			$	1,499,329			$	—			$	(861,195	)		$	725

The accompanying notes are an integral part of the consolidated financial statements.

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CDW CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

(unaudited)

		Six Months Ended June 30,
		2006				2005
Cash flows from operating activities:
Net income		$	134,789			$	128,458
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization			12,690				10,409
Accretion of marketable securities			(91	)			57
Share-based compensation expense			7,936				17
Allowance for doubtful accounts			10				(11	)
Deferred income taxes			(2,055	)			—
Tax benefit from stock option and restricted stock transactions			—				10,651
Gross excess tax benefits from share—based compensation			(11,438	)			—
Changes in assets and liabilities:
Accounts receivable			(52,589	)			(48,860	)
Miscellaneous receivables and other assets			(23,557	)			(5,167	)
Merchandise inventory			(13,471	)			(1,709	)
Prepaid expenses			(3,798	)			2,269
Accounts payable (1)			36,666				53,947
Accrued compensation			(2,569	)			6,356
Accrued income taxes and other expenses			35,617				8,100
Long-term liabilities			5,408				6,943
Net cash provided by operating activities			123,548				171,460
Cash flows from investing activities:
Purchases of available-for-sale securities			(168,260	)			(191,655	)
Redemptions and sales of available-for-sale securities			188,850				196,550
Purchases of held-to-maturity securities			(70,000	)			(20,000	)
Redemptions of held-to-maturity securities			74,900				5,000
Purchase of property and equipment			(30,625	)			(22,629	)
Net cash used in investing activities			(5,135	)			(32,734	)
Cash flows from financing activities:
Purchase of treasury shares, including forfeitures of restricted stock (1)			(211,968	)			(209,208	)
Proceeds from issuance of common stock under share-based compensation plans			45,487				16,608
Gross excess tax benefits from share-based compensation			11,438				—
Dividends paid			(40,723	)			(35,114	)
Change in book overdrafts			(4,550	)			56,221
Net cash used in financing activities			(200,316	)			(171,493	)
Effect of exchange rate changes on cash and cash equivalents			186				(135	)
Net decrease in cash			(81,717	)			(32,902	)
Cash and cash equivalents — beginning of period			201,250				148,804
Cash and cash equivalents — end of period		$	119,533			$	115,902

(1) The Company acquired $3.1 million of shares for treasury purposes in June 2005 for which cash settlement occurred in July 2005. Accordingly, the Company has excluded these non-cash items from both the “Purchase of treasury shares, including forfeitures of restricted stock” and “Accounts payable” amounts presented above.

         The accompanying notes are an integral part of the consolidated financial statements.

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CDW CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

1.		Description of Business
		CDW Corporation (collectively with its subsidiaries, “CDW” or the “Company”) is a leading direct marketer of multi-brand information technology products and services in the United States. Our primary business is conducted from corporate offices in Vernon Hills, Illinois, distribution centers in Vernon Hills, Illinois and North Las Vegas, Nevada, and sales offices in Illinois, Virginia, Connecticut, New Jersey, and Toronto, Canada. Additionally, we market and sell products through CDW.com, CDWG.com, and CDW.ca, our Web sites.
2.		Summary of Significant Accounting Policies
		Basis of Presentation
		The accompanying condensed consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America. Such principles were applied on a basis consistent with those reflected in our Annual Report on Form 10-K for the year ended December 31, 2005 (“2005 Form 10-K”) and documents incorporated therein as filed with the Securities and Exchange Commission, except as disclosed below. The accompanying financial data should be read in conjunction with the notes to consolidated financial statements contained in the 2005 Form 10-K and documents incorporated therein. In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments necessary to present fairly our financial position as of June 30, 2006 and December 31, 2005, the results of operations for the three and six month periods ended June 30, 2006 and 2005, the cash flows for the six month periods ended June 30, 2006 and 2005, and the changes in shareholders’ equity for the six month period ended June 30, 2006. Results for such interim periods are not necessarily indicative of results for the full year.
		Use of Estimates
		The preparation of financial statements in accordance with accounting principles generally accepted in the United States of America requires management to make use of certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reported periods. We base our estimates on historical experience and on various other assumptions that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about carrying values of assets and liabilities that are not readily apparent from other sources. Actual results could differ from those estimates. See the audited consolidated financial statements and notes thereto included in the 2005 Form 10-K for an additional discussion of the most significant accounting policies and estimates used in the preparation of our financial statements.
		Share-Based Compensation
		On January 1, 2006, we adopted Statement of Financial Accounting Standards No. 123R, “Share-Based Payment” (“SFAS 123R”). SFAS 123R requires the Company to measure all share-based payments to coworkers and directors using a fair-value-based method and record compensation expense related to these payments in our consolidated financial statements. We have elected to use the modified prospective method, which allows for prospective recognition of compensation expense without restatement of prior periods in the year of adoption.
		See Note 3 for further information on the adoption of SFAS 123R and the related disclosures, including pro forma information for prior periods as if we had recorded share-based compensation expense.

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		Recently Issued Accounting Standard
		In June 2006, the Financial Accounting Standards Board (“FASB”) issued FASB Interpretation No. 48, “Accounting for Uncertainty in Income Taxes – an Interpretation of FASB Statement 109” (“FIN 48”). FIN 48 prescribes a two-step process for the financial statement measurement and recognition of a tax position taken or expected to be taken in an income tax return. The first step involves the determination of whether it is more likely than not that a tax position will be sustained upon examination, based on the technical merits of the position. The second step requires that any tax position that meets the more-likely-than-not recognition threshold be measured and recognized in the financial statements at the largest amount of benefit that is greater than 50 percent likely of being realized upon ultimate settlement. FIN 48 also provides guidance on the accounting for related interest and penalties, financial statement classification, and disclosure. FIN 48 is effective for fiscal years beginning after December 15, 2006. We are currently evaluating the impact FIN 48 will have on our financial statements.
3.		Share-Based Compensation
		Share-Based Compensation Plan Descriptions
		We have established certain share-based compensation plans for the benefit of our coworkers and directors. The Company’s share-based compensation plans are intended to 1) align the interest of the Company’s shareholders and the recipients of awards under the plans, 2) attract, motivate, and retain coworkers and directors, and 3) motivate such persons to act in the long-term best interests of the Company and its shareholders. At the 2006 Annual Meeting of Shareholders, the CDW 2006 Stock Incentive Plan (“2006 Plan”) was approved. The 2006 Plan allows our Compensation and Stock Option Committee to grant stock options, restricted stock, restricted stock units and other equity-based awards to coworkers, including executive officers, and consultants. The 2006 Plan replaces the CDW 2000 Incentive Stock Option Plan (“2000 Plan”) and the equity award provisions of the CDW Senior Management Incentive Plan (“SMIP Plan”). With the approval of the 2006 Plan, no additional awards are allowed under the 2000 Plan or the SMIP Plan. Awards previously granted under these and prior plans remain outstanding in accordance with the terms of the plans under which they were granted. Upon adoption, there were 4,660,000 shares of common stock available for grants under the 2006 Plan. Shares not issued due to the expiration, termination, cancellation or forfeiture of either 1) outstanding options granted under the 2000 Plan or 2) equity-based awards that have been or will be granted under the 2006 Plan shall be available for future grants under the 2006 Plan.
		Grants to non-employee directors are made pursuant to the terms of the 2004 Non-Employee Director Equity Compensation Plan (“2004 Plan”). The 2004 Plan provides for the grant of stock options and restricted stock to non-employee directors on the terms set forth in the 2004 Plan.
		As of June 30, 2006, there were 4,193,155 shares of common stock available for future grants under these plans.
		Stock Options
		Stock options awarded under the 2004 Plan and the 2006 Plan have an exercise price equal to the fair market value of a share of common stock on the date of grant. Option awards under these plans vest ratably over five years and have a ten year contractual life. There are outstanding options that were awarded under prior plans that have vesting periods of seven to ten years and contractual lives of 20 years.
		Restricted Stock
		Under the terms of the 2004 Plan, newly elected or appointed directors receive a restricted stock grant of 1,000 shares upon the commencement of service on the Board of Directors. Restricted stock issued under the 2004 Plan vests in full after five years of continuous service. Restricted stock awards granted under the 2006 Plan vest ratably over five years.
		Recipients of restricted stock awards granted under these plans possess the rights of shareholders, including

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voting rights and the right to receive dividends.

Restricted Stock Units

The restricted stock unit awards that have been granted under the 2006 Plan obligate the Company to issue a specific number of shares of the Company’s common stock upon the vesting of the award. Restricted stock units vest ratably over five years from the date of grant.

Employee Stock Purchase Plan

We have established an Employee Stock Purchase Plan (“ESPP”) which provides that eligible coworkers may contribute up to 15% of their eligible compensation towards the quarterly purchase of our common stock. Effective January 1, 2006, we changed the provisions of the ESPP so that it is non-compensatory under the provisions of SFAS 123R. The coworkers’ purchase price will be 95% of the fair market value of the stock on the last business day of the quarterly offering period. Coworkers may purchase shares having a fair market value of up to $25,000 per year and 325 shares per quarter. No compensation expense is recorded in connection with the ESPP and the tables in this note exclude the impact of the ESPP unless otherwise noted. At the 2006 Annual Meeting of Shareholders, the Company’s shareholders approved an amendment to the ESPP pursuant to which 500,000 additional shares were added to the ESPP, increasing the number of shares available under the plan to 1,000,000. As of June 30, 2006, we had issued 371,403 shares over the life of the ESPP and the number of shares available for future issuance under the ESPP was 628,597.

Valuation and Expense Information under SFAS 123R

Under SFAS 123R, the value of share-based compensation awards must be attributed to the various periods during which the recipient must perform services in order to vest in the award. Upon adoption of SFAS 123R, the Company changed its method of attributing the value of share-based compensation expense from the accelerated approach specified in FASB Interpretation No. 28, “Accounting for Stock Appreciation Rights and Other Variable Stock Option or Award Plans” to the straight-line method. Compensation expense for awards made prior to January 1, 2006 will continue to be subject to the accelerated expense attribution method while compensation expense for share-based awards made after January 1, 2006 will be recognized using a straight-line method.

The fair value of each stock option grant made after April 1, 2005 was estimated on the grant date using a lattice-binomial model. The fair value of each stock option grant made prior to April 2, 2005 was estimated on the grant date using the Black-Scholes model. The weighted-average estimated fair value of options granted for the three and six month periods ended June 30, 2006 was $24.80 and $24.80, respectively. The weighted-average assumptions used to value option grants and compensatory stock purchase rights under the ESPP for the three and six month periods ended June 30, 2006 and 2005 are as follows:

		Three Months Ended June 30,								Six Months Ended June 30,
		2006				2005				2006				2005
Risk-free interest rate			4.93	%			3.90	%			4.93	%			3.86	%
Dividend yield			0.9	%			0.66	%			0.9	%			0.66	%
Expected life (years)			6.71				4.33				6.71				4.17
Stock price volatility			37.07	%			39.63	%			37.07	%			40.35	%

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The Company estimated the expected future volatility used in the lattice-binomial model valuation based on a combination of historic and implied volatility of the Company’s common stock. The Company believes that this blended approach provides a better estimate of the expected future volatility of the Company’s common stock over the expected life of its stock options. The lattice-binomial model takes into consideration early exercise behavior or patterns based on stock price appreciation. The Company estimated early exercise behavior patterns based on an analysis of historical exercise behavior. The risk-free interest rate assumption was based upon observed interest rates appropriate for the term of the Company’s stock options. The expected life of the options granted is derived from the output of the lattice-binomial option valuation model and represents the weighted-average period of time that options granted are expected to be outstanding. The dividend yield is based on the Company’s history and expectation of dividend payouts.

The following table sets forth the summary of stock option activity for the three and six month periods ended June 30, 2006:

										Weighted-
						Weighted-				Average				Aggregate
						Average				Remaining				Intrinsic
						Exercise				Contractual				Value
Options		Shares				Price				Term				($000) (1)
Outstanding at January 1, 2006			10,199,500			$	38.26
Granted			—				—
Exercised			(1,407,413	)			25.40
Forfeited or expired			(42,065	)			54.04
Outstanding at March 31, 2006			8,750,022			$	40.25				9.06				173,429
Granted			678,852				55.40
Exercised			(320,261	)			22.48
Forfeited or expired			(51,526	)			56.25
Outstanding at June 30, 2006			9,057,087			$	41.93				8.78				132,148
Exercisable at June 30, 2006			5,943,534			$	40.58				8.03				95,469
Expected to vest at June 30, 2006			3,039,798			$	44.41				9.86				36,106

(1) These amounts represent the difference between $54.65, the closing price of the Company’s common stock on June 30, 2006, and the exercise price.

Our net income for the three and six month periods ended June 30, 2006 includes $3.7 million and $7.9 million, respectively, of compensation costs and $1.4 million and $3.0 million, respectively, of income tax benefits related to our share-based compensation arrangements. No portion of share-based compensation was capitalized.

For the three and six month periods ended June 30, 2006:

	•		Cash proceeds related to stock option exercises were $7.2 million and $43.0 million, respectively.
	•		The intrinsic value of stock options exercised was $11.5 million and $56.7 million, respectively.
	•		The tax benefit realized from stock options exercised was $4.5 million and $21.6 million, respectively.

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A summary of the status of our nonvested restricted stock and restricted stock units (collectively, “nonvested shares”) as of January 1, 2006, and changes through the three and six month periods ended June 30, 2006, is presented below:

						Weighted-
						Average
						Grant-Date
Nonvested Shares		Shares				Fair Value
Nonvested at January 1, 2006			10,400			$	55.93
Granted			—				—
Vested			—				—
Forfeited			—				—
Nonvested at March 31, 2006			10,400			$	55.93
Granted			140,330			$	55.40
Vested			—				—
Forfeited			(402	)			55.40
Nonvested at June 30, 2006			150,328			$	55.44

As of June 30, 2006, there was $39.8 million of total unrecognized compensation cost related to nonvested share-based compensation awards granted under our plans. That cost is expected to be recognized over a weighted-average period of 4.19 years.

The Company has historically settled stock option exercises with newly issued common shares.

In April 2006, our Board of Directors authorized a new share repurchase program of up to 5,000,000 shares. This repurchase program is expected to remain in effect through April 2008 unless earlier terminated by the Board or completed.

Impact of Fair Value Recognition under SFAS 123 for Three and Six Month Periods Ended June 30, 2005

In periods prior to our adoption of SFAS 123R, net income and earnings per share amounts reported in our consolidated statements of income did not include share-based compensation expense for stock options and stock purchases under the ESPP because the Company opted to continue using the recognition provisions of Accounting Principles Board Opinion No. 25, “Accounting for Stock Issued to Employees” (“APB 25”) while providing required pro forma disclosures under Statement of Financial Accounting Standards 123, “Accounting for Stock-Based Compensation” (“SFAS 123”). The following table reflects the effect on net income and earnings per share assuming the Company had elected to apply the fair value recognition provisions of SFAS 123 (in thousands, except per share amounts). The results for the three and six month periods ended June 30, 2005 have not been restated.

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		Three Months Ended				Six Months Ended
		June 30, 2005				June 30, 2005
Net income, as reported		$	67,061			$	128,458
Add share-based employee compensation expense included in reported net income, net of related tax effects			—				10
Deduct total share-based employee compensation expense determined under fair value based method for all awards, net of related tax effects			(4,981	)			(10,046	)
Pro forma net income		$	62,080			$	118,422
Basic earnings per share, as reported		$	0.82			$	1.57
Diluted earnings per share, as reported		$	0.80			$	1.52
Pro forma basic earnings per share		$	0.76			$	1.44
Pro forma diluted earnings per share		$	0.74			$	1.39

The impact of accounting for share-based compensation under SFAS 123R for the three and six month periods ended June 30, 2006, was as follows (in thousands, except per share amounts):

		Three Months Ended				Six Months Ended
		June 30, 2006				June 30, 2006
Share-based compensation expense by type of award:
Stock options		$	3,467			$	7,605
Restricted stock			255				331
Total share—based compensation			3,722				7,936
Tax effect on share-based compensation			(1,434	)			(3,014	)
Net effect on net income		$	2,288			$	4,922
Tax effect on:
Cash flows from operating activities		$	(2,025	)		$	(11,438	)
Cash flows from financing activities		$	2,025			$	11,438
Effect on earnings per share:
Basic		$	0.03			$	0.06
Diluted		$	0.03			$	0.06

For the three and six month periods ended June 30, 2006, the share-based compensation expense of $255,000 and $331,000, respectively, related to restricted stock would also have been recorded as an expense under APB 25. Prior to the adoption of SFAS 123R, we presented all tax benefits for deductions resulting from the exercise of stock options and disqualifying dispositions as operating cash flows in our consolidated statement of cash flows. SFAS 123R requires the benefits from tax deductions in excess of recognized compensation expense to be reported as a financing cash flow, rather than as an operating cash flow. This requirement will reduce net operating cash flows and increase net financing cash flows in periods after adoption. Total cash flows will remain unchanged from what would have been reported under prior accounting rules.

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4.		Marketable Securities
		Estimated fair values of marketable securities are based on quoted market prices.
		The following table summarizes our investments in marketable securities at June 30, 2006 (in thousands):

						Gross
						Unrealized
		Estimated				Holding								Amortized
Security Type		Fair Value				Gains				Losses				Cost
Available-for-sale:
State and municipal bonds		$	226,670			$	—			$	(5	)		$	226,675
Total available-for-sale			226,670				—				(5	)			226,675
Held-to-maturity:
U.S. Government and Government agency securities			156,851				—				(1,132	)			157,983
Total held-to-maturity			156,851				—				(1,132	)			157,983
Total marketable securities		$	383,521			$	—			$	(1,137	)		$	384,658

The following table presents the gross unrealized losses and fair values of our investments in marketable securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position as of June 30, 2006 (in thousands):

		Less Than 12 Months								12 Months or Greater								Total
						Gross								Gross								Gross
						Unrealized								Unrealized								Unrealized
Security Type		Fair Value				Losses				Fair Value				Losses				Fair Value				Losses
State and municipal bonds		$	—			$	—			$	9,995			$	(5	)		$	9,995			$	(5	)
U.S Government and Government agency securities			110,573				(720	)			46,278				(412	)			156,851				(1,132	)
Total		$	110,573			$	(720	)		$	56,273			$	(417	)		$	166,846			$	(1,137	)

Because the Company believes that unrealized losses on fixed income securities are primarily attributable to changes in interest rates, and because the Company has the ability and intent to hold these investments until a recovery of fair value, which may be at maturity, the Company does not consider those investments to be other-than-temporarily impaired as of June 30, 2006.

The net unrealized holding losses on available—for-sale securities are determined by specific identification and are included in accumulated other comprehensive income, which is reflected as a separate component of shareholders’ equity. The gross realized losses on marketable securities that are included in other expense in the Consolidated Statements of Income are not material.

The following table summarizes the maturities of our fixed income securities as of June 30, 2006 (in thousands):

										Estimated				Amortized
										Fair value				Cost
Due in one year or Less										$	324,704			$	325,397
Due in greater than one year											58,817				59,261
Total investments in marketable securities										$	383,521			$	384,658

As of June 30, 2006, all of the marketable securities that are due after one year have maturity dates prior to June 30, 2008.

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5.		Financing Arrangements
		We have an aggregate $70.0 million available pursuant to two $35.0 million unsecured lines of credit with two financial institutions. One line of credit was renewed in June 2006, and now expires in June 2007. The other line does not have a fixed expiration date. Borrowings under the first credit facility bear interest at the prime rate less 2.5%, LIBOR plus 0.45% or the federal funds rate plus 0.5%, as determined by the Company. Borrowings under the second credit facility bear interest at the prime rate less 2.5%, LIBOR plus 0.45% or the federal funds rate plus 0.45%, as determined by the Company. The Company does not incur any facility fees associated with either line of credit. At June 30, 2006, there were no borrowings under either of the credit facilities.
		We have entered into security agreements with certain financial institutions in order to facilitate the purchase of inventory from various suppliers under certain terms and conditions. The agreements allow for a maximum credit line of $80.0 million collateralized by inventory purchases financed by the financial institutions. We do not incur any interest expenses associated with these agreements, as we pay the balances when they are due. All amounts owed the financial institutions are included in trade accounts payable.
6.		Earnings Per Share
		At June 30, 2006, we had 78,118,131 outstanding common shares. We have granted options to purchase common shares to the coworkers and directors of the Company under several stock option plans. These options have a dilutive effect on the calculation of earnings per share. The following table is a reconciliation of the numerators and denominators of the basic and diluted earnings per share computations as required by Statement of Financial Accounting Standards No. 128, “Earnings Per Share” (in thousands, except per share amounts):

		Three Months Ended								Six Months Ended
		June 30,								June 30,
		2006				2005				2006				2005
Basic earnings per share:
Income available to common shareholders (numerator)		$	73,111			$	67,061			$	134,789			$	128,458
Weighted-average common shares outstanding (denominator)			78,994				81,337				79,488				81,975
Basic earnings per share		$	0.93			$	0.82			$	1.70			$	1.57
Diluted earnings per share:
Income available to common shareholders (numerator)		$	73,111			$	67,061			$	134,789			$	128,458
Weighted-average common shares outstanding			78,994				81,337				79,488				81,975
Effect of dilutive securities:
Options on common stock			1,570				2,400				1,780				2,546
Total common shares and dilutive securities (denominator)			80,564				83,737				81,268				84,521
Diluted earnings per share		$	0.91			$	0.80			$	1.66			$	1.52

Additional options to purchase common shares and nonvested shares were outstanding during the three and six month periods ended June 30, 2006 and 2005, but were not included in the computation of diluted earnings per share because they were antidilutive in that either: 1) the exercise price of the options were greater than the average market price of common shares during the respective periods or 2) the deemed per share proceeds under the treasury stock method (the sum of the option exercise price, if applicable, any future compensation expense under SFAS 123R, and any related “windfall” tax benefits) for the options or nonvested shares on a per share basis exceeded the average market price of common shares during the respective periods. The following table summarizes the weighted-average number, and the weighted-average exercise price of those options or nonvested shares which were excluded from the calculations:

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		Three Months Ended								Six Months Ended
		June 30,								June 30,
		2006				2005				2006				2005
Weighted-average number of options (in 000’s)			2,378				1,264				2,223				1,251
Weighted-average exercise price		$	61.49			$	67.49			$	61.97			$	67.58
Weighted-average number of nonvested shares (in 000’s)			69				—				35				—

7.		Share Repurchase Programs
		Since 1998, we have repurchased a total of 17.2 million shares of our common stock at a total cost of $861.2 million under various share repurchase programs authorized by our Board of Directors. The program authorizing the repurchase of 4,529,600 shares that was approved by our Board of Directors in April 2005 was completed in March 2006. In April 2006, our Board of Directors authorized a new share repurchase program of up to 5,000,000 shares of our common stock. Share repurchases may be made from time to time in both open market and private transactions, as conditions warrant. The new program is expected to remain in effect through April 2008, unless earlier terminated by the Board or completed. Repurchased shares are held in treasury pending use for general corporate purposes, including issuances under various stock plans. The following table presents share repurchases during the three and six month periods ended June 30, 2006 and 2005 (in thousands):

		Three Months Ended June 30,								Six Months Ended June 30,
		2006				2005				2006				2005
Number of shares			1,543				1,485				3,760				3,742
Amount		$	84,095			$	82,104			$	211,946			$	212,332

8.		Segment Information
		We have two operating segments: corporate sector, which is primarily comprised of business customers, but also includes consumers, and public sector, which is comprised of federal, state and local government entities, educational institutions and healthcare customers. In accordance with Statement of Financial Accounting Standards No. 131, “Disclosure about Segments of an Enterprise and Related Information,” the internal organization that is used by management for making operating decisions and assessing performance is the source of our reportable segments.
		In July 2005, the Company announced the creation of a dedicated healthcare sales team. In creating this team, we consolidated healthcare accounts from across our entire sales organization and transferred these accounts to the new team in the public sector group. This new team focuses on IT solutions addressing the unique needs of a range of customers within the healthcare field. For financial reporting purposes, results of operations and assets related to healthcare customers are reported as part of the public sector segment. Segment information for the three and six month periods ended June 30, 2005 has been restated to reflect this change.
		The accounting policies of the segments are the same as those described in Note 2, “Summary of Significant Accounting Policies.” We allocate resources to and evaluate performance of our segments based on both sales and operating income.

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     The following tables present information about our reportable segments (in thousands):

		Three Months Ended June 30, 2006
		Corporate				Public				Headquarters /
		Sector				Sector				Other				Consolidated
Net sales		$	1,111,879			$	521,579			$	—			$	1,633,458
Income (loss) from operations		$	88,896			$	28,950			$	(10,008)			$	107,838
Net interest income and other expense															5,398
Income before income taxes														$	113,236
Total assets		$	596,065			$	250,747			$	808,899			$	1,655,711

		Three Months Ended June 30, 2005
		Corporate				Public				Headquarters /
		Sector				Sector				Other				Consolidated
Net sales		$	1,076,483			$	463,112			$	—			$	1,539,595
Income (loss) from operations		$	81,458			$	29,097			$	(8,067)			$	102,488
Net interest income and other expense															3,510
Income before income taxes														$	105,998
Total assets		$	434,453			$	265,373			$	863,554			$	1,563,380

		Six Months Ended June 30, 2006
		Corporate				Public				Headquarters /
		Sector				Sector				Other				Consolidated
Net sales		$	2,262,063			$	960,024			$	—			$	3,222,087
Income (loss) from operations		$	178,194			$	43,653			$	(19,763)			$	202,084
Net interest income and other expense															9,643
Income before income taxes														$	211,727
Total assets		$	596,065			$	250,747			$	808,899			$	1,655,711

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		Six Months Ended June 30, 2005
		Corporate				Public				Headquarters /
		Sector				Sector				Other				Consolidated
Net sales		$	2,164,784			$	849,893			$	—			$	3,014,677
Income (loss) from operations		$	164,559			$	51,707			$	(16,048)			$	200,218
Net interest income and other expense															6,319
Income before income taxes														$	206,537
Total assets		$	434,453			$	265,373			$	863,554			$	1,563,380

		Our assets are primarily managed by coworkers in our headquarters, including all cash, cash equivalents, and marketable securities, inventory, and the majority of all property and equipment. As a result, capital expenditures and related depreciation are immaterial for the two operating segments. The operating segments’ assets consist principally of trade and intercompany accounts receivable.
		No single customer accounted for more than 1% of net sales in the three or six month periods ended June 30, 2006 or 2005. During the three and six month periods ended June 30, 2006 and the three and six month periods ended June 30, 2005, approximately 2% and 1%, respectively, of our net sales were to customers outside of the continental United States, primarily in Canada.
9.		Effective Tax Rate
		The income tax provision for the three and six month periods ended June 30, 2006 includes a benefit of $2.3 million relating to the resolution of an audit of the Company’s 2003 federal income tax return.
10.		Contingencies
		On September 9, 2003, CDW completed the purchase of certain assets of Bridgeport Holdings, Inc., Micro Warehouse, Inc., Micro Warehouse, Inc. of Ohio, and Micro Warehouse Gov/Ed, Inc. (collectively, “Micro Warehouse”). On September 10, 2003, Micro Warehouse filed voluntary petitions for relief under chapter 11 of title 11 of the United States Code (the “Bankruptcy Code”) in the United States Bankruptcy Court for the District of Delaware (Case No. 03-12825). On January 20, 2004, the Official Committee of Unsecured Creditors (the “Committee”) appointed in the Micro Warehouse bankruptcy proceedings filed a motion with the court seeking the production of certain documents for review and certain representatives of CDW for depositions. On February 12, 2004, the Bankruptcy Court entered an order approving a stipulation between the Committee and CDW whereby CDW consented to the Committee’s production requests. Pursuant to the stipulation, CDW produced the requested documents and certain CDW representatives were deposed. In a subsequent filing with the Bankruptcy Court, the Committee stated its belief that the Micro Warehouse estate has a claim against CDW for a transfer of assets for less than reasonably equivalent value arising from the sale of such assets to CDW. The Bankruptcy Court confirmed a plan of distribution with respect to Micro Warehouse which became effective on October 14, 2004. In connection therewith, any such claim that the estate had against CDW was transferred to the Bridgeport Holdings, Inc. Liquidating Trust (the “Liquidating Trust”). On March 3, 2005, the Liquidating Trust filed a civil claim against CDW in the United States Bankruptcy Court for the District of Delaware. The Liquidating Trust alleges that CDW did not pay reasonably equivalent value for the assets it acquired from Micro Warehouse and seeks to have CDW’s “purchase of Micro Warehouse” set aside and an amount of damages, to be determined at trial, paid to it. CDW believes that it paid reasonably equivalent value for the assets it acquired from Micro Warehouse and believes that the outcome of this claim will not have a material adverse effect on CDW’s financial condition. It is not possible for CDW to estimate a

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range of any possible loss that could result from this litigation.

From time to time, customers of CDW file voluntary petitions for reorganization under the United States bankruptcy laws. In such cases, certain pre-petition payments received by CDW could be considered preference items and subject to return to the bankruptcy administrator. CDW believes that the final resolution of any such preference items will not have a material adverse effect on its financial condition.

In addition, CDW is party to legal proceedings that arise from time to time, both with respect to specific transactions, such as the purchase of certain assets from Micro Warehouse described above, and in the ordinary course of our business. CDW is also subject to audit by federal, state and local tax authorities, by various government agencies relating to sales under certain government contracts and by vendors relating to vendor incentive programs. We do not believe that any current audit or pending or threatened litigation will have a material adverse effect on our financial condition. Litigation and audits, however, involve uncertainties and it is possible that the eventual outcome of litigation or audits could adversely affect our results of operations for a particular period.

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

     The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our unaudited condensed consolidated financial statements and the notes thereto.

Overview

     We are a leading direct marketer of multi-brand information technology products and services in the United States. Our primary business is conducted from corporate offices in Vernon Hills, Illinois, distribution centers in Vernon Hills, Illinois and North Las Vegas, Nevada, and sales offices in Illinois, Virginia, Connecticut, New Jersey, and Toronto, Canada. Additionally, we market and sell products through CDW.com, CDWG.com, and CDW.ca, our Web sites.

     For financial reporting purposes, we have two operating segments: corporate sector, which is primarily comprised of business customers, but also includes consumers (which generated approximately 1% of net sales in the three and six month periods ended June 30, 2006 and 2005); and public sector, which is comprised of federal, state and local government entities, educational institutions and healthcare customers. See Note 8 to the Condensed Consolidated Financial Statements for more information on our operating segments.

     CDW management monitors a number of financial and non-financial measures and ratios on a daily, weekly, and monthly basis in order to track the progress of the business and make adjustments as necessary. We believe that the most important of these measures and ratios include daily sales, by business segment and total company, gross margin, number of orders shipped per day, number of orders shipped complete per day, inventory balance, aging and turnover, cash, cash equivalents and marketable securities balance, accounts receivable balance and aging, accounts receivable days sales outstanding, operating expenses and operating margin. The measures and ratios are compared to standards or objectives set by management, so that actions can be taken, as necessary, in order to achieve the standards and objectives.

     In Item 7 (“Management’s Discussion and Analysis of Financial Condition and Results of Operations”) of our Annual Report on Form 10-K for the year ended December 31, 2005 (“2005 Form 10-K”), which was filed with the Securities and Exchange Commission on March 6, 2006, we included a discussion of the most significant accounting policies and estimates used in the preparation of our financial statements. There has been no material change in the policies and estimates used by us in the preparation of our financial statements as described in the 2005 Form 10-K, except as disclosed below with regard to the adoption of Statement of Financial Accounting Standards No. 123R, “Share-Based Payment” (“SFAS 123R”).

Recently Adopted and Newly Issued Accounting Standards

     On January 1, 2006, we adopted SFAS 123R. SFAS 123R requires the Company to measure all share-based payments to coworkers and directors using a fair-value-based method and record compensation expense related to these payments in our consolidated financial statements. We have elected to use the modified prospective method, which allows for prospective recognition of compensation expense without restatement of prior periods in the year of adoption.

     See Note 3 to the Condensed Consolidated Financial Statements for further information on the adoption of SFAS 123R and the related disclosures, including pro forma information for prior periods as if we had recorded share-based compensation expense.

     In June 2006, the Financial Accounting Standards Board (“FASB”) issued FASB Interpretation No. 48, “Accounting for Uncertainty in Income Taxes – an Interpretation of FASB Statement 109” (“FIN 48”). FIN 48 prescribes a two-step process for the financial statement measurement and recognition of a tax position taken or expected to be taken in an income tax return. The first step involves the determination of whether it is more likely than not that a tax position will be sustained upon examination, based on the technical merits of the position. The second step requires that any tax position that meets the more-likely-than-not recognition threshold be measured and recognized in the financial statements at the largest amount of benefit that is greater than 50 percent likely of being realized

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upon ultimate settlement. FIN 48 also provides guidance on the accounting for related interest and penalties, financial statement classification, and disclosure. FIN 48 is effective for fiscal years beginning after December 15, 2006. We are currently evaluating the impact FIN 48 will have on our financial statements.

Results Of Operations

     The following table sets forth for the periods indicated information derived from our consolidated statements of income expressed as a percentage of net sales:

				Percentage of Net Sales
				Three Months Ended June 30,										Six Months Ended June 30,
	Financial Results			2006					2005					2006					2005
	Net sales				100.0	%				100.0	%				100.0	%				100.0	%
	Cost of sales				83.8					84.6					83.9					84.6
	Gross profit				16.2					15.4					16.1					15.4
	Selling and administrative expenses				7.7					6.8					7.9					6.9
	Advertising expense				1.9					1.9					1.9					1.8
	Income from operations				6.6					6.7					6.3					6.7
	Interest and other income/expense				0.3					0.2					0.3					0.2
	Income before income taxes				6.9					6.9					6.6					6.9
	Income tax provision				2.4					2.5					2.4					2.6
	Net income				4.5	%				4.4	%				4.2	%				4.3	%

The following table sets forth for the periods indicated a summary of certain of our consolidated operating statistics:

				Three Months Ended June 30,										Six Months Ended June 30,
	Operating Statistics			2006					2005					2006					2005
	% of sales to commercial customers (1)				99.1%					98.8%					99.0%					98.7%
	Direct web sales (000’s)			$	493,522				$	422,614				$	994,489				$	859,091
	Sales force, end of period				2,179					1,962					2,179					1,962
	Annualized inventory turnover				23					25					23					24
	Accounts receivable — days sales outstanding				38					37					39					38

(1) Commercial customers are defined as public sector and corporate customers excluding consumers.

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     The following table presents net sales of products by product category as a percentage of total net sales of products. Net sales of products do not include items such as commission revenue or delivery charges to customers, and were approximately 97% of total net sales in the three and six month periods ended June 30, 2006 and 2005.

     Product lines are based upon internal product code classifications. Product mix for the three and six month periods ended June 30, 2005 have been retroactively adjusted for certain changes in individual product classifications.

				Three Months Ended June 30,										Six Months Ended June 30,
	Analysis of Product Mix			2006					2005					2006					2005
	Notebook computers and accessories				13.2	%				12.6	%				12.9	%				12.9	%
	Desktop computers and servers				13.4					13.9					13.5					14.0
	Subtotal computer products				26.6					26.5					26.4					26.9
	Software				17.0					17.5					17.2					17.3
	Data storage devices				13.4					13.5					13.5					13.6
	Printers				11.5					12.3					11.7					12.4
	NetComm products				10.3					10.0					10.3					9.9
	Video				9.8					9.4					9.7					9.1
	Add-on boards/memory				4.8					4.4					4.7					4.4
	Input devices				3.5					3.4					3.3					3.3
	Other				3.1					3.0					3.2					3.1
	Total				100.0	%				100.0	%				100.0	%				100.0	%
The following table represents the change in year-over-year net sales of products by product category for each of the periods indicated. Product lines are based upon internal product code classifications. The rates of change for the three and six month periods ended June 30, 2005 have been retroactively adjusted for certain changes in individual product classifications.
				Three Months Ended June 30,										Six Months Ended June 30,
	Analysis of Product Category Growth			2006					2005					2006					2005
	Notebook computers and accessories				11.0	%				5.9	%				7.1	%				7.7	%
	Desktop computers and servers				2.1					18.6					2.6					17.7
	Subtotal computer products				6.4					12.2					4.7					12.7
	Software				2.5					15.8					6.1					12.7
	Data storage devices				4.3					11.9					5.9					11.3
	Printers				(0.7	)				4.9					0.1					4.8
	NetComm products				8.6					14.8					11.3					13.7
	Video				9.3					9.7					12.8					10.8
	Add-on boards/memory				15.4					5.7					11.9					6.1
	Input devices				8.8					9.7					7.0					8.1
	Other				10.1					26.4					11.4					24.9

Three Month Period Ended June 30, 2006 Compared to Three Month Period Ended June 30, 2005

     Net sales in the second quarter of 2006 increased 6.1% to $1.633 billion, compared to $1.540 billion in the second quarter of 2005. Sales of notebook computers and accessories and add-on board/memory products each increased more than 10% in the second quarter of 2006 over the second quarter of 2005. Corporate sector segment sales increased 3.3% to $1.112 billion in the second quarter of 2006 from $1.076 billion in the second quarter of 2005, and comprised 68% of our total net sales for the quarter. Public sector segment sales increased 12.6% to $521.6 million in the second quarter of 2006 from $463.1 million in the second quarter of 2005, and comprised 32% of our total net sales for the quarter.

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     Gross profit increased 11.2% to $264.0 million in the second quarter of 2006, compared to $237.5 million in the second quarter of 2005. As a percentage of net sales, gross profit was 16.2% in the second quarter of 2006, compared to 15.4% in the second quarter of 2005. The increase in the gross profit margin was primarily due to increased net service contract and commission revenue, a higher level of vendor incentives, and a favorable comparison of delivery charges due to more limited delivery promotions.

     Our objective for gross profit as a percentage of net sales is between 15.25% and 16.0%. This revised objective has been raised 25 basis points from the previous objective referred to in our Form 10-Q for the quarterly period ended March 31, 2006, to reflect recent performance. The gross profit margin depends on various factors, including vendor incentive and inventory price protection programs, cooperative advertising funds classified as a reduction of cost of sales, product mix, net service contract revenue, commission revenue, pricing strategies, market conditions, and other factors, any of which could result in changes in gross margins from recent experience.

     Selling and administrative expenses increased 19.8% in the second quarter of 2006 to $126.2 million, compared to $105.3 million in the second quarter of 2005, while increasing as a percentage of net sales to 7.7% versus 6.8% in the second quarter of 2005. The primary categories that impacted selling and administrative expenses were:

	•		Payroll costs increased $15.6 million. This increase was primarily due to the continued investment in our sales force, increases in administrative areas to support a larger and growing business, and increased sales commission expense due to the achievement of a higher gross profit margin. Included in payroll costs in the second quarter of 2006 was $2.4 million related to the operation of our new distribution center in North Las Vegas, Nevada. Also, we recorded $3.7 million in share-based compensation expense during the second quarter of 2006 due to the adoption of SFAS 123R on January 1, 2006.
	•		Employee-related costs (which includes items such as profit sharing, incentive awards and health benefits) in the second quarter of 2006 were comparable to the second quarter of 2005. We experienced increased health benefits expense due to higher insurance rates and coverage for a larger number of coworkers, however, this increase was offset by decreases in other areas.
	•		Occupancy costs increased $2.4 million, primarily due to $3.4 million of depreciation expense, rent and operating expenses, such as property taxes and utilities, related to our new distribution center in North Las Vegas, Nevada and additional leased office space in Chicago and Vernon Hills, Illinois, partially offset by reductions in other areas.
	•		Other selling and administrative costs increased $2.9 million. This includes $0.5 million in expenses related to our new distribution center in North Las Vegas, Nevada. In addition, we experienced increased administrative expenses required to support a larger business, such as professional fees, general insurance, and travel and entertainment expenses.

     Advertising expense increased to $30.0 million in the second quarter of 2006, compared to $29.7 million in the same period of 2005. As a percentage of net sales, advertising expense was 1.9% in the second quarter of 2006 and 2005.

     Consolidated operating income was $107.8 million in the second quarter of 2006, an increase of 5.2% from $102.5 million in the second quarter of 2005. Consolidated operating income as a percentage of net sales was 6.6% in the second quarter of 2006, compared to 6.7% in the second quarter of 2005. Corporate sector segment operating income was $88.9 million in the second quarter of 2006, an increase of 9.1% from $81.5 million in the second quarter of 2005. The increase in corporate sector segment operating income was primarily due to improved gross margin. Public sector segment operating income was $29.0 million in the second quarter of 2006, a decrease of 0.5% from $29.1 million in the second quarter of 2005. The decrease in public sector segment operating income was primarily due to the investment in additional sales resources. Headquarters expenses increased to $10.0 million in the second quarter of 2006 compared to $8.1 million in the second quarter of 2005, primarily due to a larger number of coworkers and the recognition of share-based compensation expense due to the adoption of SFAS 123R on January 1, 2006.

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     Our objective for operating income as a percentage of net sales is a range of 6.0% to 6.5% for the remainder of 2006. This reflects a 10 basis point increase from the previous range of 5.9% to 6.4% referred to in our Form 10-Q for the quarterly period ended March 31, 2006.

     The effective income tax rate, expressed as a percentage of income before income taxes, decreased to 35.4% in the second quarter of 2006 compared to 36.7% in the second quarter of 2005. This decrease was primarily attributable to the resolution of an audit of the Company’s 2003 federal income tax return in the second quarter of 2006. The change in the effective tax rate increased diluted earnings per share in the second quarter of 2006 by $0.02 compared to the second quarter of 2005.

     Net income in the second quarter of 2006 was $73.1 million, a 9.0% increase from $67.1 million in the second quarter of 2005. Diluted earnings per share were $0.91 in the second quarter of 2006, an increase of 13.8% from $0.80 in the second quarter of 2005. The change in the weighted-average number of common shares outstanding in the second quarter of 2006 compared to the second quarter of 2005 increased diluted earnings per share by approximately $0.04.

Six Month Period Ended June 30, 2006 Compared to Six Month Period Ended June 30, 2005

     Net sales in the six month period ended June 30, 2006 increased 6.9% to $3.222 billion, compared to $3.015 billion in the same period of 2005. Sales of netcomm products, video, and add-on boards/memory products each increased more than 10% in the first six months of 2006 over the first six months of 2005. Corporate sector segment sales increased 4.5% to $2.262 billion in the six month period ended June 30, 2006 from $2.165 billion in the six month period ended June 30, 2005, and comprised 70% of our total net sales for the period. Public sector segment sales increased 13.0% to $960.0 million in the six month period ended June 30, 2006 from $849.9 million in the six month period ended June 30, 2005, and comprised 30% of our total net sales for the period.

     Gross profit increased 11.6% to $517.9 million in the first six months of 2006, compared to $463.9 million in the first six months of 2005. As a percentage of net sales, gross profit was 16.1% in the first six months of 2006, compared to 15.4% in the same period of 2005. The increase in the gross profit margin was primarily due to higher product margins, increased net service contract revenue and commission revenue, and a favorable comparison of delivery charges due to more limited delivery promotions.

     Our objective for gross profit as a percentage of net sales is between 15.25% and 16.0%. This revised objective has been raised 25 basis points from the previous objective referred to in our Form 10-Q for the quarterly period ended March 31, 2006, to reflect recent performance. The gross profit margin depends on various factors, including vendor incentive and inventory price protection programs, cooperative advertising funds classified as a reduction of cost of sales, product mix, net service contract revenue, commission revenue, pricing strategies, market conditions, and other factors, any of which could result in changes in gross margins from recent experience.

     Selling and administrative expenses increased 22.8% in the first six months of 2006 to $254.9 million, compared to $207.6 million in the same period of 2005, while increasing as a percentage of net sales to 7.9% in the first six months of 2006 versus 6.9% in the first six months of 2005. The primary reasons for the increase in selling and administrative expenses were:

	•		Payroll costs increased $31.8 million. This increase was primarily due to the continued investment in our sales force, increases in administrative areas to support a larger and growing business, and increased sales commission expense due to the achievement of a higher gross profit margin. Included in payroll costs in the first six months of 2006 was $4.2 million related to the operation of our new distribution center in North Las Vegas, Nevada. Also, we recorded $7.9 million in share-based compensation expense during the first six months of 2006 due to the adoption of SFAS 123R on January 1, 2006.
	•		Employee-related costs (which includes items such as profit sharing, incentive awards and health benefits) increased $3.7 million. Health benefits expense increased by $2.7 million due to higher insurance rates and

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coverage for a larger number of coworkers. In addition, we recorded $1.2 million of additional profit sharing expense during the first six months of 2006.

	•		Occupancy costs increased $5.4 million, primarily due to $6.4 million of depreciation expense, rent and operating expenses, such as property taxes and utilities, related to our new distribution center in North Las Vegas, Nevada and additional leased office space in Chicago and Vernon Hills, Illinois, partially offset by reductions in other areas.
	•		Other selling and administrative costs increased $6.6 million. This includes $0.5 million in expenses related to our new distribution center in North Las Vegas, Nevada. In the first six months of 2006, we recorded severance expense of $2.1 million in connection with payments to several individuals who left the Company. In addition, we experienced increased administrative expenses required to support a larger business, such as professional fees, general insurance, and travel and entertainment expenses.

     Advertising expense increased to $60.9 million in the six month period ended June 30, 2006, compared to $56.1 million in the same period of 2005. As a percentage of net sales, advertising expense increased to 1.9% in the first six months of 2006, compared to 1.8% in the first six months of 2005.

     Consolidated operating income was $202.1 million in the six month period ended June 30, 2006, an increase of 0.9% from $200.2 million in the six month period ended June 30, 2005. Consolidated operating income as a percentage of net sales decreased to 6.3% in the first six months of 2006, compared to 6.7% in the same period of 2005. The decrease in operating income as a percentage of net sales was primarily due to the increased selling and administrative expenses, partially offset by the increased gross profit. Corporate sector segment operating income was $178.2 million in the first six months of 2006, an increase of 8.3% from $164.6 million in the first six months of 2005. The increase in corporate sector segment operating income was primarily due to an increase in sales and improved gross margin. Public sector segment operating income was $43.7 million in the first six months of 2006, a decrease of 15.6% from $51.7 million in the first six months of 2005. The decrease in public sector segment operating income was primarily due to lower gross margin and increased selling and administrative expenses related to the investment in additional sales resources, increased costs related to the adoption of SFAS 123R, and increased corporate allocations. Headquarters expenses increased to $19.8 million in the six month period ended June 30, 2006 compared to $16.0 million in the same period of 2005, primarily due to a larger number of coworkers and the recognition of share-based compensation expense due to the adoption of SFAS 123R on January 1, 2006.

     Our objective for operating income as a percentage of net sales is a range of 6.0% to 6.5% for the remainder of 2006. This reflects a 10 basis point increase from the previous range of 5.9% to 6.4% referred to in our Form 10-Q for the quarterly period ended March 31, 2006.

     The effective income tax rate, expressed as a percentage of income before income taxes, decreased to 36.3% in the six month period ended June 30, 2006 compared to 37.8% in the six month period ended June 30, 2005. This decrease was primarily attributable to the resolution of an audit of the Company’s 2003 federal income tax return in the second quarter of 2006. The change in the effective tax rate increased diluted earnings per share in the first six months of 2006 by $0.04 compared to the first six months of 2005.

     Net income in the first six months of 2006 was $134.8 million, a 4.9% increase from $128.5 million in the first six months of 2005. Diluted earnings per share were $1.66 in the first six months of 2006, an increase of 9.2% from $1.52 in the first six months of 2005. The change in the weighted-average number of common shares outstanding in the first six months of 2006 compared to the first six months of 2005 increased diluted earnings per share by approximately $0.07.

Seasonality

     Sales in our corporate sector segment, which primarily serves business customers, have not historically experienced significant seasonality throughout the year. In contrast, sales in our public sector segment have historically been higher in the third quarter than in other quarters due to the buying patterns of federal government and education customers. If sales to federal government and education customers increase as a percentage of overall

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sales, the Company as a whole may experience increased seasonality in future periods.

Legal Proceedings

     For a description of certain legal proceedings, see Item 1 of Part II of this Form 10-Q.

Liquidity and Capital Resources

Working Capital

     We have historically financed our operations and capital expenditures primarily through cash flows from operations. At June 30, 2006, we had cash, cash equivalents, and current marketable securities of $444.9 million, representing a decrease of $126.8 million in cash, cash equivalents, and current marketable securities from December 31, 2005. This decrease was primarily due to the repurchase of shares of our common stock and the payment of cash dividends during the first six months of 2006. Our working capital decreased $76.1 million, to $1,057.4 million at June 30, 2006 from $1,133.5 million at December 31, 2005. The decrease in working capital was primarily a result of increases in accounts payable and accrued liabilities and decreases in cash, and cash equivalents, and current marketable securities, partially offset by increases in accounts receivable, merchandise inventory, and miscellaneous receivables.

     We have an aggregate $70.0 million available pursuant to two $35.0 million unsecured lines of credit with two financial institutions. One line of credit was renewed in June 2006, and now expires in June 2007. The other line does not have a fixed expiration date. The Company does not incur any facility fees associated with either line of credit. At June 30, 2006, there were no borrowings under either of the credit facilities.

     We have entered into security agreements with certain financial institutions in order to facilitate the purchase of inventory from various suppliers under certain terms and conditions. The agreements allow for a maximum credit line of $80.0 million collateralized by inventory purchases financed by the financial institutions. We do not incur any interest expenses associated with these agreements, as we pay the balances when they are due. All amounts owed the financial institutions are included in trade accounts payable.

     Since 1998, we have repurchased a total of 17.2 million shares of our common stock at a total cost of $861.2 million under various share repurchase programs authorized by our Board of Directors. The program authorizing the repurchase of 4,529,600 shares that was approved by our Board of Directors in April 2005 was completed in March 2006. In April 2006, our Board of Directors authorized a new share repurchase program of up to 5,000,000 shares of our common stock. Share repurchases may be made from time to time in both open market and private transactions, as conditions warrant. The new program is expected to remain in effect through April 2008, unless earlier terminated by the Board or completed. Repurchased shares are held in treasury pending use for general corporate purposes, including issuances under various stock plans. The following table presents share repurchases during the three and six month periods ended June 30, 2006 and 2005 (in thousands):

		Three Months Ended June 30,								Six Months Ended June 30,
		2006				2005				2006				2005
Number of shares			1,543				1,485				3,760				3,742
Amount		$	84,095			$	82,104			$	211,946			$	212,332

     Total capital expenditures for 2006 are expected to be approximately $45 million to $50 million. Our internally generated cash flow has been sufficient to fund our capital expenditures and we believe this will continue.

     Our current and anticipated uses of our cash, cash equivalents and marketable securities are to fund growth in working capital and capital expenditures necessary to support future growth in sales, our stock buyback programs, potential dividends and possible expansion through acquisitions. We believe that the funds held in cash, cash equivalents and marketable securities, and funds available under the credit facilities, will be sufficient to fund our working capital and cash requirements for the foreseeable future.

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Cash Flows for the Six Month Period Ended June 30, 2006

     Net cash provided by operating activities was $123.5 million in the six month period ended June 30, 2006. The primary factors that affected our cash flow from operations were net income and changes in accounts receivable, accounts payable, and accrued income taxes and other expenses.

     Net cash used in investing activities for the six month period ended June 30, 2006 was $5.1 million, including $263.8 million provided by redemptions, sales and maturities of marketable securities offset by $238.3 million to purchase marketable securities and $30.6 million used for capital expenditures. Capital expenditures during the first six months of 2006 consisted primarily of machinery and equipment and leasehold improvements related to our new distribution center in North Las Vegas, Nevada, and additional leased office space in Chicago and Vernon Hills, Illinois.

     Net cash used in financing activities for the six month period ended June 30, 2006 was $200.3 million. The primary factors that affected our cash flow from financing activities were the repurchase of shares of our common stock at a total cost of $212.0 million and the payment of cash dividends totaling $40.7 million, partially offset by proceeds of $45.5 million from the issuance of common stock under share-based compensation plans.

     Any statements in this report that are forward-looking (that is, not historical in nature) are made pursuant to the safe harbor provisions of The Private Securities Litigation Reform Act of 1995. Such forward-looking statements include, for example, statements concerning the Company’s sales growth, cooperative advertising reimbursements, gross profit as a percentage of sales, selling and administrative expenses, advertising expense, operating income as a percentage of sales, and effective tax rate. In addition, words such as “likely,” “may,” “would,” “could,” “should,” “anticipate,” “believe,” “estimate,” “expect,” “intend,” “plan,” “objective,” and similar expressions, may identify forward-looking statements in this report. Forward-looking statements in this report are based on the Company’s beliefs and expectations as of the date of this report and are subject to risks and uncertainties, including those described below, which may have a significant impact on the Company’s business, operating results or financial condition. Investors are cautioned that these forward-looking statements are inherently uncertain. Should one or more of the risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results or outcomes may vary materially from those described herein. The following factors, among others, may have an impact on the accuracy of the forward-looking statements contained in this report: the continued acceptance of the Company’s distribution channel by vendors and customers, the timely availability and acceptance of new products, continuation of key vendor relationships and support programs, changes in pricing by our vendors, changes in the competitive environment, the continuing development, maintenance and operation of the Company’s I.T. systems, changes and uncertainties in economic and geopolitical conditions that could affect the rate of I.T. spending by the Company’s customers, the ability of the Company to hire and retain qualified account managers and any additional factors described from time to time in the Company’s filings with the Securities and Exchange Commission. These among other factors are discussed in further detail under Item 1A, Risk Factors, and elsewhere in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2005, which was filed with the Securities and Exchange Commission on March 6, 2006, and which discussion is incorporated by reference herein.

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Item 3. Quantitative and Qualitative Disclosures About Market Risk

     There has been no material change from the information provided in Item 7A of the Company’s Annual Report on Form 10-K for the year ended December 31, 2005.

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

     As required by Rule 13a-15(b) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), the Company’s management carried out an evaluation, with the participation of the Company’s Chief Executive Officer and Chief Financial Officer, of the effectiveness of the Company’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the last fiscal quarter. Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that, as of June 30, 2006, the Company’s disclosure controls and procedures were effective to ensure that information required to be disclosed by the Company (including its consolidated subsidiaries) in the reports the Company files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms.

Changes in Internal Control Over Financial Reporting

     There was no change in the Company’s internal control over financial reporting that occurred during the Company’s fiscal quarter ended June 30, 2006 that materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

Part II. Other Information

Item 1. Legal Proceedings

     On September 9, 2003, CDW completed the purchase of certain assets of Bridgeport Holdings, Inc., Micro Warehouse, Inc., Micro Warehouse, Inc. of Ohio, and Micro Warehouse Gov/Ed, Inc. (collectively, “Micro Warehouse”). On September 10, 2003, Micro Warehouse filed voluntary petitions for relief under chapter 11 of title 11 of the United States Code (the “Bankruptcy Code”) in the United States Bankruptcy Court for the District of Delaware (Case No. 03-12825). On January 20, 2004, the Official Committee of Unsecured Creditors (the “Committee”) appointed in the Micro Warehouse bankruptcy proceedings filed a motion with the court seeking the production of certain documents for review and certain representatives of CDW for depositions. On February 12, 2004, the Bankruptcy Court entered an order approving a stipulation between the Committee and CDW whereby CDW consented to the Committee’s production requests. Pursuant to the stipulation, CDW produced the requested documents and certain CDW representatives were deposed. In a subsequent filing with the Bankruptcy Court, the Committee stated its belief that the Micro Warehouse estate has a claim against CDW for a transfer of assets for less than reasonably equivalent value arising from the sale of such assets to CDW. The Bankruptcy Court confirmed a plan of distribution with respect to Micro Warehouse which became effective on October 14, 2004. In connection therewith, any such claim that the estate had against CDW was transferred to the Bridgeport Holdings, Inc. Liquidating Trust (the “Liquidating Trust”). On March 3, 2005, the Liquidating Trust filed a civil claim against CDW in the United States Bankruptcy Court for the District of Delaware. The Liquidating Trust alleges that CDW did not pay reasonably equivalent value for the assets it acquired from Micro Warehouse and seeks to have CDW’s “purchase of Micro Warehouse” set aside and an amount of damages, to be determined at trial, paid to it. CDW believes that it paid reasonably equivalent value for the assets it acquired from Micro Warehouse and believes that the outcome of this claim will not have a material adverse effect on CDW’s financial condition.

     From time to time, customers of CDW file voluntary petitions for reorganization under the United States bankruptcy laws. In such cases, certain pre-petition payments received by CDW could be considered preference items and subject to return to the bankruptcy administrator. CDW believes that the final resolution of any such preference items will not have a material adverse effect on its financial condition.

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     In addition, CDW is party to legal proceedings that arise from time to time, both with respect to specific transactions, such as the purchase of certain assets from Micro Warehouse described above, and in the ordinary course of our business. CDW is also subject to audit by federal, state and local tax authorities, by various government agencies relating to sales under certain government contracts and by vendors relating to vendor incentive programs. We do not believe that any current audit or pending or threatened litigation will have a material adverse effect on our financial condition. Litigation and audits, however, involve uncertainties and it is possible that the eventual outcome of litigation or audits could adversely affect our results of operations for a particular period.

Item 1A. Risk Factors

     There has been no material change from the risk factors described in Item 1A of the Company’s Annual Report on Form 10-K for the year ended December 31, 2005.

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

Issuer Purchases of Equity Securities (1)

										(c)
		(a)								Total number of				(d)
		Total				(b)				shares purchased as				Maximum number of
		number of				Average				part of publicly				shares that may yet
		shares				price paid				announced plans or				be purchased under
Period		purchased				per share				programs				the plans or programs
April 1, 2006 through April 30, 2006			—				—				—				5,000,000
May 1, 2006 through May 31, 2006			380,000			$	55.69				380,000				4,620,000
June 1, 2006 through June 30, 2006			1,163,157			$	54.12				1,162,755				3,457,245
Total			1,543,157	(2)		$	54.51				1,542,755

(1)		In April 2006, our Board of Directors authorized a new share repurchase program of up to 5,000,000 shares of our common stock. Share repurchases may be made from time to time in both open market and private transactions, as conditions warrant. This program is expected to remain in effect through April 2008, unless earlier terminated by the Board or completed.
(2)		Includes forfeitures of 402 shares of restricted stock granted to coworkers. All other shares were purchased pursuant to the publicly announced program.

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Item 4. Submission of Matters to a Vote of Security Holders

	(a)		The Company held its annual meeting of shareholders on May 17, 2006.
	(b)		Set forth below are the four matters that were presented to and voted upon by our shareholders, and the results of such shareholders’ votes.

1. Election of Directors

	Nominee		Votes For		Votes Withheld				Non-Votes
	Michelle L. Collins		74,688,890			64,709				—
	Casey G. Cowell		74,464,776			288,822				—
	John A. Edwardson		74,059,890			693,708				—
	Daniel S. Goldin		74,689,969			63,630				—
	Thomas J. Hansen		74,686,308			67,290				—
	Donald P. Jacobs		74,500,996			252,602				—
	Stephan A. James		74,458,628			294,970				—
	Michael P. Krasny		74,686,209			67,389				—
	Terry L. Lengfelder		74,685,370			68,229				—
	Susan D. Wellington		74,463,328			290,271				—
	Brian E. Williams		72,762,611			1,990,987				—

	2.		Ratification of the Selection of Independent Registered Public Accounting Firm
			The ratification of the selection of PricewaterhouseCoopers LLP, independent registered public accounting firm, as auditors for the Company for the 2006 fiscal year.

	Votes For			Votes Against				Abstentions				Non-Votes
	74,036,288			642,833				74,477				—

3. Approval of the CDW 2006 Stock Incentive Plan

	Votes For			Votes Against				Abstentions				Non-Votes
	55,400,695			13,201,772				347,649				5,803,482

4. Approval of An Amendment to the CDW Employee Stock Purchase Plan

	Votes For			Votes Against				Abstentions				Non-Votes
	62,742,693			5,860,610				346,812				5,802,483

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Item 6. Exhibits

		Exhibits:
			10.1			Revolving Note between the Company and LaSalle National Bank dated June 30, 2006
			10.2			Form of Stock Option Agreement for Coworkers, incorporated by reference from the exhibits filed with the Company’s Current Report on Form 8-K filed on May 19, 2006
			10.3			Form of Restricted Stock Award Agreement for Coworkers, incorporated by reference from the exhibits filed with the Company’s Current Report on Form 8-K filed on May 19, 2006
			31.1			Certification of Chief Executive Officer Pursuant to Rule 13a–14(a) under the Securities Exchange Act of 1934
			31.2			Certification of Chief Financial Officer Pursuant to Rule 13a–14(a) under the Securities Exchange Act of 1934
			32.1			Certification of Chief Executive Officer Pursuant to 18 U.S.C. 1350
			32.2			Certification of Chief Financial Officer Pursuant to 18 U.S.C 1350

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SIGNATURE

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.

		CDW CORPORATION
Date: August 9, 2006		By:		/s/ Barbara A. Klein Barbara A. Klein
				Senior Vice President and Chief Financial Officer
				(Duly authorized officer and principal financial officer)

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