UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

Current Report
Pursuant to Section 13 or 15(d) of
The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 19, 2006

WINTRUST FINANCIAL CORPORATION

(Exact name of registrant as specified in its charter)

Illinois	0-21923	36-3873352
(State or other jurisdiction of	(Commission File Number)	(I.R.S. Employer Identification No.)
Incorporation)
727 North Bank Lane
Lake Forest, Illinois		60045
(Address of principal		(Zip Code)
executive offices)

Registrant’s telephone number, including area code (847) 615-4096

Not Applicable
(Former name or former address, if changed since last year)

     Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

TABLE OF CONTENTS

Retail Banking & Financial Services Symposium Presentation

Item 7.01. Regulation FD Disclosure.

On June 20, 2006, at approximately 8:30 a.m. Eastern time, Wintrust Financial Corporation (the “Company”) will participate in the Piper Jaffray Retail Banking & Financial Services Symposium (the “Symposium”) held in Boston, Massachusetts. Attached as Exhibit 99.1 to this Current Report on Form 8-K is a copy of the Company’s slide presentation to be used at the Symposium.

The information contained in this Item 7.01 of this Form 8-K and the Exhibit attached hereto shall not be deemed filed for purposes of Section 18 of the Securities Act of 1934, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, except as shall be expressly set forth by specific reference.

Item 9.01. Financial Statements and Exhibits.

(c) Exhibits.

Exhibit No.	Description
99.1	Piper Jaffray Retail Banking & Financial Services Symposium Presentation

***

The slide presentation contains forward-looking statements within the meaning of federal securities laws. the Company intends such forward-looking statements to be covered by the safe harbor provision for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995, and is including this statement for purposes of invoking these safe harbor provisions. Actual results could differ materially from those addressed in the forward-looking statements due to factors such as changes in economic conditions, competition, or other factors that may influence the anticipated growth rate of loans and deposits, the quality of the loan portfolio and loan and deposit pricing, unanticipated changes in interest rates that negatively impact net interest income, lower than anticipated residential mortgage loan originations, future events that may cause unforeseen loan or lease losses, slower than anticipated development and growth of Tricom and the trust and investment business, unanticipated changes in the temporary staffing industry, the ability to adapt successfully to technological changes to compete effectively in the marketplace, competition and the related pricing of brokerage and asset management products, unforeseen difficulties in integrating the acquisitions of Hinsbrook Bancshares, Inc., Advantage National Bancorp, Inc., Village Bancorp, Inc., WestAmerica Mortgage Company, Guardian Real Estate Services, Inc., Northview Financial Corporation, Town Bankshares, Ltd., Antioch Holding Company and First Northwest Bancorp, Inc. with the Company, the ability to pursue additional acquisition and expansion strategies, the ability to attract and retain experienced senior management and other factors discussed in filings with the Securities and Exchange Commission by the Company. Therefore, there can be no assurances that future actual results will correspond to these forward-looking statements. The reader is cautioned not to place undue reliance on any forward looking statement made by or on behalf of the Company. Any such statement speaks only as of the date the statement was made or as of such date that may be referenced within the statement. The Company does not undertake any obligation to update or revise any forward-looking statements.

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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 hereunto duly authorized.

WINTRUST FINANCIAL CORPORATION (Registrant)
By:	/s/ David L. Stoehr
	David L. Stoehr
	Executive Vice President and Chief Financial Officer

Date: June 20, 2006

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