UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

OR

For the transition period from                      to                     

Commission file number 0-21796

CDW Corporation

(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 x No o

Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Exchange Act) Yes x No o

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 3, 2004, 91,851,755 common shares were issued and 83,134,955 were outstanding.

CDW CORPORATION AND SUBSIDIARIES
INDEX

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Part I. Financial Information

CDW CORPORATION AND SUBSIDIARIES
CONDENSED CONSOLIDATED BALANCE SHEETS
(in thousands)

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)

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)

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)

(1)

The Company acquired $1.6 million of shares for treasury purposes in June 2004 for which cash settlement occurred in July 2004. Accordingly, the Company has excluded this non-cash item from both the “Purchase of treasury shares” 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 computers and related technology products and services in the United States. Our primary business is conducted from a combined corporate office and distribution center located in Vernon Hills, Illinois, and sales offices in Illinois, Virginia, Connecticut, New Jersey, and Toronto, Canada. Additionally, we market and sell products through CDW.com, CDWG.com, macwarehouse.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 2003 Annual Report on Form 10-K and documents incorporated therein as filed with the Securities and Exchange Commission. The accompanying financial data should be read in conjunction with the notes to consolidated financial statements contained in our 2003 Annual Report on 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, 2004 and December 31, 2003, the results of operations for the three and six month periods ended June 30, 2004 and 2003, the cash flows for the six month periods ended June 30, 2004 and 2003, and the changes in shareholders’ equity for the six month period ended June 30, 2004. The unaudited condensed consolidated statements of income 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 our Annual Report on Form 10-K for the year ended December 31, 2003 for an additional discussion of the most significant accounting policies and estimates used in the preparation of our financial statements.
		Stock-Based Compensation
		At June 30, 2004, we had several stock-based employee compensation plans. In accordance with Statement of Financial Accounting Standards No. 123, “Accounting for Stock-Based Compensation” (“SFAS 123”), we account for our stock-based compensation programs according to the provisions of Accounting Principles Board Opinion No. 25, “Accounting for Stock Issued to Employees.” Accordingly, compensation expense is recognized to the extent of employee or director services rendered based on the intrinsic value of compensatory options or shares granted under the plans. The following table illustrates the effect on net income and earnings per share if we had applied the fair value recognition provisions of SFAS 123 to stock-

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based employee compensation for the three and six month periods ended June 30, 2004 and 2003 (in thousands, except per share amounts):

3.		Marketable Securities
		The amortized cost and estimated fair values of our investments in marketable securities at June 30, 2004 were (in thousands):

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Estimated fair values of marketable securities are based on quoted market prices. The amortized cost and estimated fair value of our investments in marketable securities at June 30, 2004, by contractual maturity, were (in thousands):

		As of June 30, 2004, all of the marketable securities that are due after one year have maturity dates no later than June 30, 2006.
		Any gross unrealized holding gains and losses on available-for-sale securities are recorded as accumulated other comprehensive income, which is reflected as a separate component of shareholders’ equity. The gross realized gains and losses on marketable securities that are included in other expense in the Condensed Consolidated Statements of Income are not material.
4.		Financing Arrangements
		We have an aggregate $70 million available pursuant to two $35 million unsecured lines of credit with two financial institutions. One line of credit expires in June 2005, at which time we intend to renew the line, and the other does not have a fixed expiration date. Borrowings under the first credit facility bear interest at the prime rate less 2.5%, LIBOR plus 0.5% 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. At June 30, 2004, there were no borrowings under either of the credit facilities.
		We have entered into security agreements with certain financial institutions (“Flooring Companies”) in order to facilitate the purchase of inventory from various suppliers under certain terms and conditions. The agreements allowed for a maximum credit line of $70 million collateralized by inventory purchases financed by the Flooring Companies. All amounts owed the Flooring Companies are included in trade accounts payable.
5.		Earnings Per Share
		At June 30, 2004, we had 83,149,483 outstanding common shares. We have granted options to purchase common shares to the directors and coworkers of CDW 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):

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