Wintrust Financial (WTFC) 8-K Wintrust Financial Corporation Reports 2009 Fourth Quarter Results Showing Improved Credit Quality

Exhibit 99.1

Wintrust Financial Corporation
727 North Bank Lane, Lake Forest, Illinois 60045

News Release

FOR IMMEDIATE RELEASE January 27, 2010

FOR MORE INFORMATION CONTACT:

Edward J. Wehmer, President & Chief Executive Officer
David A. Dykstra, Senior Executive Vice President & Chief Operating Officer
(847) 615-4096
Web site address: www.wintrust.com

WINTRUST FINANCIAL CORPORATION REPORTS
2009 FOURTH QUARTER RESULTS SHOWING IMPROVED CREDIT QUALITY

     LAKE FOREST, ILLINOIS—Wintrust Financial Corporation (“Wintrust” or “the Company”) (Nasdaq WTFC) announced net income of $28.2 million or $0.90 per diluted common share for the quarter ended December 31, 2009. This compares with earnings of $32.0 million ($1.07 per diluted common share) for the third quarter of 2009 and $2.0 million ($0.02 per diluted common share) for the fourth quarter of 2008. Net income for the year ended December 31, 2009 was $73.1 million ($2.18 per diluted common share) compared to $20.5 million ($0.76 per diluted common share) for the year-ended December 31, 2008.

     Edward J. Wehmer, President and Chief Executive Officer, commented “We are pleased to report net income for the full year of $73.1 million and net income for the fourth quarter of $28.2 million and a significant improvement in the level of non-performing loans. Core pre-tax earnings, or earnings before taxes, provision for credit losses, other real-estate owned expenses and the bargain purchase gains, were $148 million for the full year of 2009 compared to $90 million in 2008. This same measure of earnings increased to $44 million in the fourth quarter of 2009 compared to $18 million in the fourth quarter of 2008.”

     Commenting on credit, Mr. Wehmer said, “Wintrust reduced its non-performing loans by 43% during the fourth quarter to a level below where it stood a year ago. Total non-performing loans represent only 1.57% of the total loan portfolio at year-end 2009. During the fourth quarter, we recorded a provision for credit losses of $39 million and net charge-offs of $35 million. Additionally, we recognized $5 million of expenses related to write-downs, valuation adjustments and operating costs on other real estate owned during the fourth quarter. Our allowance for loan losses increased to $98 million or 1.17% of total loans. Adding our reserve for unfunded lending-related commitments and credit-related discounts on purchased loans brings the Company’s total credit reserves to $139 million or 1.65% of total loans.”

     Mr. Wehmer continued to note that “near-term delinquencies also improved during the quarter as both 60 to 89 day delinquencies and 30 to 59 day delinquencies declined during the quarter. Only $37 million of the Company’s loans, representing 0.4% of total loans, are 60 to 89 days past due and still accruing and only $64 million of the Company’s loans, representing 0.8% of total loans, are 30 to 59 days past due and still accruing.”

     Mr. Wehmer also noted, “While the Company’s net interest margin for the quarter decreased to 3.10% from 3.25% in the third quarter, positive results from deposit re-pricing and commensurate pricing on lending continue. The decrease in our net interest margin is a by-product of the large amount of liquidity currently residing on our balance sheet, which generates relatively little income. Additionally, net interest margin was impacted by a reduction in the amount of discount recognized into income on the purchased loan portfolio, which resulted from a lower rate of prepayments in the fourth quarter.”

     Re-emphasizing his statement from last quarter, Mr. Wehmer summarized, “Our goal was to be in a position to not just make it through this credit cycle but to do so in a manner that would allow us to take advantage of the opportunities that result from these occurrences — specifically a material dislocation of assets, banks and people in the overall market. To date, we have had good success capitalizing on the dislocation of assets and people. Our focus on increasing core earnings and clearing our balance sheet of problem assets will now allow us to participate in FDIC assisted acquisitions as well as unassisted acquisitions of banks. These opportunities will all be evaluated for their long-term strategic value to the company and if completed, done with a disciplined approach. Internally, we still have core earnings improvement opportunities remaining in the areas of deposit re-pricing, core franchise growth and liquidity redeployment. At quarter end, the Company had approximately $1 billion in overnight liquid funds and short-term interest-bearing deposits with banks and was operating at slightly less than an 85% loan to deposit ratio — just below the low end of our desired 85% to 90% range. Redeploying a portion of those liquid assets into higher yielding assets is a priority.”

     Total assets of $12.2 billion at December 31, 2009 increased $80 million from September 30, 2009 and $1.6 billion from December 31, 2008. Total deposits as of December 31, 2009 were $9.9 billion, an increase of $70 million from September 30, 2009 and $1.5 billion from December 31, 2008. Total loans, including loans held for sale, grew to $8.7 billion as of December 31, 2009, an increase of $219 million over the $8.5 billion balance as of September 30, 2009 and an increase of $1.0 billion over the December 31, 2008 balance of $7.7 billion. During the fourth quarter of 2009 the Company completed the acquisition of $83.4 million of life insurance premium finance receivables (see “Acquisitions” for the impact of this transaction). The Company’s loan portfolio is diversified

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amongst a wide variety of loan types. Please see the tables included in the remainder of this release for additional disclosures regarding the components of the commercial and commercial real estate portfolio, the allowance for credit losses and loan portfolio aging statistics.

     Total shareholders’ equity was $1.1 billion, or a book value of $35.27 per common share, at December 31, 2009, compared to $1.1 billion, or a book value of $33.03 per common share, at December 31, 2008.

     Wintrust’s key operating measures and growth rates for the fourth quarter of 2009 as compared to the sequential and linked quarters are shown in the table below:

										% or			% or
										basis point (bp)			basis point (bp)
										change			change
	Three Months Ended									from			from
	December 31,			September 30,			December 31,			3rd Quarter			4th Quarter
($ in thousands, except per share data)	2009			2009			2008			2009(4)			2008
Net income	$	28,167		$	31,995		$	1,955			(12	)%		1,341	%
Net income per common share — diluted	$	0.90		$	1.07		$	0.02			(16	)%		4,400	%
Net revenue(1)	$	172,022		$	238,343		$	82,117			(28	)%		109	%
Net interest income	$	86,934		$	87,663		$	62,745			(1	)%		39	%
Net interest margin(2)		3.10	%		3.25	%		2.78	%	(15)		bp	32		bp
Net overhead ratio(3)		0.17	%		(1.95)	%		1.80	%	212		bp	(163)		bp
Return on average assets		0.92	%		1.08	%		0.08	%	(16)		bp	84		bp
Return on average common equity		10.97	%		13.79	%		0.22	%	(282)		bp	1,075		bp
At end of period
Total assets	$	12,215,620		$	12,136,021		$	10,658,326			3	%		15	%
Total loans	$	8,411,771		$	8,275,257		$	7,621,069			7	%		10	%
Total loans, including loans held-for-sale	$	8,687,486		$	8,468,512		$	7,682,185			10	%		13	%
Total deposits	$	9,917,074		$	9,847,163		$	8,376,750			3	%		18	%
Total equity	$	1,138,639		$	1,106,082		$	1,066,572			12	%		7	%

(1)	Net revenue is net interest income plus non-interest income.
(2)	See “Supplemental Financial Measures/Ratios” for additional information on this performance measure/ratio.
(3)	The net overhead ratio is calculated by netting total non-interest expense and total non-interest income, annualizing this amount, and dividing by that period’s average total assets. A lower ratio indicates a higher degree of efficiency.
(4)	Period-end balance sheet percentage changes are annualized.

     Certain returns, yields, performance ratios, or quarterly growth rates are “annualized” in this presentation to represent an annual time period. This is done for analytical purposes to better discern for decision-making purposes underlying performance trends when compared to full-year or year-over-year amounts. For example, a 5% growth rate for a quarter would represent an annualized 20% growth rate. Additional supplemental financial information showing quarterly trends can be found on the Company’s web site at www.wintrust.com by choosing “Financial Reports” and then choosing “Supplemental Financial Info.”

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Impacting Comparative Financial Results: Acquisitions, Securitization andStock Offerings/Regulatory Capital

Acquisitions

     OnJuly 28, 2009 the Company announced that its indirect, wholly-owned subsidiary, First Insurance Funding Corp. (“FIFC”) completed the purchase of a majority of the U.S. life insurance premium finance assets of A.I. Credit Corp. and A.I. Credit Consumer Discount Company (“the seller”), subsidiaries of American International Group, Inc. In doing so, FIFC acquired one of the largest life insurance premium finance portfolios in the industry, as well as certain other assets related to the life insurance premium finance business and assumed certain related liabilities. Subsequent to post-closing adjustments, an aggregate unpaid principal balance of $949.3 million was purchased for $685.3 million in cash. At closing, a portion of the portfolio with an aggregate purchase price of approximately $230 million was placed in escrow, pending the receipt of required third party consents. To the extent any of the required consents are not obtained prior to October 28, 2010, the portion of the portfolio for which such required consents are not obtained will be reassumed by the seller, and the corresponding portion of the purchase price will be returned to FIFC. Also, as a part of this purchase, $84.4 million of additional life insurance premium finance assets were available for future purchase by FIFC subject to satisfying certain conditions. As discussed below, on October 2, 2009, upon the satisfaction of these conditions, the Company completed the purchase of the majority of these additional loans.

     The July 28, 2009 purchase was accounted for as a business combination as required by FASB Statement of Financial Accounting Standards No. 141 (revised 2007) which is now part of Accounting Standards Codification (ASC) 805 Business Combinations (“ASC 805”), which became effective for the Company beginning on January 1, 2009. ASC 805 establishes principles and requirements for the acquirer in a business combination, including the recognition and measurement of the identifiable assets acquired, the liabilities assumed and any non-controlling interest in the acquired entity as of the acquisition date; the recognition and measurement of the goodwill acquired in the business combination or gain from a bargain purchase as of the acquisition date; and the determination of additional disclosures needed to enable users of the financial statements to evaluate the nature and financial effects of the business combination. Under ASC 805, acquired assets and liabilities assumed are required to be recorded at fair value at the acquisition date, including loans. ASC 805 eliminated recognition at the acquisition date of an allowance for loan losses on acquired loans; rather, credit-related factors are now incorporated directly into the fair value of the

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loans. Other significant changes include recognizing transaction costs and most restructuring costs as expenses when incurred. The accounting requirements of ASC 805 are applied on a prospective basis for all transactions completed after the effective date and early adoption was not permitted. Under ASC 805 a gain is recorded equal to the amount by which the fair value of net assets purchased exceeded the purchase price. The Company recognized a $28.5 million gain in the fourth quarter of 2009, in addition to the $113.1 million recognized in the third quarter of 2009, relating to the loans it acquired for which required third party consents were obtained. This gain is shown as a component of non-interest income on our statement of income. The difference between the fair value of the loans acquired and the outstanding principal balance of these loans at the date of purchase represented a discount of $113.3 million and is comprised of two components, an accretable component totaling $74.8 million and a non-accretable component totaling $38.5 million. The accretable component will be recognized into interest income using the effective yield method over the estimated remaining life of the loans. The non-accretable portion will be evaluated each quarter and if the loans’ credit related conditions improve, a portion will be transferred to the accretable component and accreted over future periods. In the event a specific loan prepays in whole, any remaining accretable and non-accretable discount is recognized in income immediately. If credit related conditions deteriorate, an allowance related to these loans will be established as part of our provision for loan losses. The impact related to this transaction is included in Wintrust’s consolidated financial results only since the effective date of acquisition.

     OnOctober 2, 2009, the conditions were satisfied in relation to the majority of the additional life insurance premium finance assets that were available for purchase and FIFC purchased $83.4 million of the $84.4 million of life insurance premium finance assets available for an aggregate purchase price of $60.5 million. The Company recorded a $14.5 million bargain purchase gain relating to this purchase in the fourth quarter of 2009. The difference between the fair value of these loans acquired on October 2, 2009 and the outstanding principal balance of theses loans represents a discount of $8.4 million and is comprised of two components, an accretable component totaling $5.7 million and a non-accretable component totaling $2.7 million. These discount components were accounted for in a similar fashion as the discounts described above. The impact related to this transaction is included in Wintrust’s consolidated financial results only since the effective date of acquisition. The “Purchased Loan Portfolio – Summary of Acquisitions” table in the Non-Interest Income section presented later in this document displays the balance sheet and income statement impact of these transactions.

     OnApril 20, 2009 Wayne Hummer Asset Management Company completed its previously announced agreement to purchase certain assets and assume certain liabilities of Advanced Investment Partners, LLC (“AIP”).

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AIP is an investment management firm specializing in the active management of domestic equity investment strategies. The impact related to the AIP transaction is included in Wintrust’s consolidated financial results only since the effective date of acquisition.

     OnDecember 23, 2008, the Company announced the acquisition by Wintrust Mortgage Corporation of certain assets and the assumption of certain liabilities of the mortgage banking business of Professional Mortgage Partners (“PMP”) of Downers Grove, Illinois. PMP was founded in 1999 and had approximately $1.6 billion in annual mortgage originations in 2008. The terms of the cash transaction were not disclosed, however, a significant portion of the net purchase price for the PMP assets is conditioned upon certain future profitability measures. During the fourth quarter of 2009, the Company recorded an additional $1.5 million of purchase price that became payable based upon PMP attaining the required profitability measures. The impact related to the PMP transaction is included in Wintrust’s consolidated financial results only since the effective date of acquisition.

Securitization — Sale of Loans

     OnSeptember 11, 2009 Wintrust’s indirect, wholly-owned subsidiary, FIFC Premium Funding I, LLC (the “Issuer”), closed on the sale of $600,000,000 aggregate principal amount of its Series 2009-A Premium Finance Asset Backed Notes, Class A (the “Notes”). The Notes were issued in a securitization transaction sponsored by First Insurance Funding Corp. At the time of closing, the securitization was off-balance sheet financing transaction for the Company. However, in accordance with newly applicable accounting guidance, effective January 1, 2010 the transaction will be recorded on the balance sheet of the Company as a secured borrowing.

     The Notes bear interest at an annual rate equal to one-month LIBOR plus 1.45% and have an expected average term of 2.93 years; provided, however, that the entire unpaid balance of the Notes shall be due and payable in full on February 17, 2014. At the time of issuance, the Notes were eligible collateral under the Federal Reserve Bank of New York’s Term Asset-Backed Securities Loan Facility (“TALF”). The Notes are rated Aaa by Moody’s and AAA by Standard & Poor’s. The Issuer’s obligations under the Notes are secured by revolving loans made to buyers of property and casualty insurance policies to finance the related premiums payable by the buyers to the insurance companies for the policies. The premium finance loans will be transferred from time to time by FIFC to FIFC Funding I, LLC (the “Depositor”) and by the Depositor to the Issuer.

     The Notes have not been and will not be registered under the Securities Act of 1933, as amended (the “Securities Act”), or any applicable state securities laws and may not be offered or sold in the United States without

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registration under the Securities Act or any applicable exemption from registration. The Notes were sold in a private placement to qualified institutional buyers only pursuant to an exemption under Rule 144A of the Securities Act. The Notes are restricted securities and may only be resold to qualified institutional buyers in a transaction meeting the requirements of Rule 144A and may not otherwise be reoffered, resold, pledged or otherwise transferred.

     As a result of this transaction the Company recognized a gain of $3.6 million in the third quarter of 2009. A total of $695 million in premium finance property and casualty receivables were initially transferred into the securitization. The Company retained interests of approximately $84 million and a sellers’ interest in loans of $11 million. Approximately $50 million of the retained interests are classified as debt securities on the Company’s balance sheet and the remainder is classified in other assets. As a result of pay-downs of loans in the revolving securitization facility, the Company transferred $357 million of property and casualty premium finance receivables to the securitization facility during the fourth quarter of 2009 and recognized $4.4 million of gains.

Stock Offerings/Regulatory Capital

     The Company announced on December 19, 2008 that it had received the proceeds from a $250 million investment in Wintrust by the U.S. Treasury Department. The investment was made as part of the U.S. Treasury Department’s Capital Purchase Program, which was designed to infuse capital into the nation’s healthy banks in order to expand the flow of credit to U.S. consumers and businesses on competitive terms to promote the sustained growth and vitality of the U.S. economy.

     The investment by the U.S. Treasury Department was comprised of $250 million in preferred shares, with a warrant to purchase 1,643,295 shares of Wintrust common stock at a per share exercise price of $22.82 and a term of 10 years. If declared, dividends on the preferred stock are payable quarterly in arrears at a rate of 5% annually for the first five years and 9% thereafter. This investment can, with the approval of the Federal Reserve, be repurchased. The Company subsequently filed a shelf registration statement to fulfill the requirement of the Capital Purchase Program that the U.S. Department of Treasury be able to publicly sell the preferred shares and warrant it purchased from Wintrust.

     On August 26, 2008, the Company sold $50 million ($49.4 million net of issuance costs) of non-cumulative perpetual convertible preferred stock in a private transaction. If declared, dividends on the preferred stock are payable quarterly in arrears at a rate of 8.00% per annum. The shares are convertible into common stock at the

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option of the holder at a price per share of $25.72. On and after August 26, 2010, the preferred stock will be subject to mandatory conversion into common stock under certain circumstances.

Financial Performance Overview — Fourth Quarter of 2009

     For the fourth quarter of 2009, net interest income totaled $86.9 million, an increase of $24.2 million as compared to the fourth quarter of 2008 and a decrease of $730,000 as compared to the third quarter of 2009. Average earning assets for the fourth quarter of 2009 increased by $2.1 billion compared to the fourth quarter of 2008. Earning asset growth over the past 12 months was primarily a result of the $1.1 billion increase in average loans and $1.0 billion increase in liquidity management assets. The average earning asset growth of $2.1 billion over the past 12 months was funded by a $1.3 billion increase in the average balances of savings, NOW, MMA and Wealth Management deposits, an increase in the average balance of net free funds of $532 million, an increase in the average balance of retail certificates of deposit of $438 million offset by a decrease in the average balance of wholesale borrowings of $145 million and a decrease in the average balance of brokered certificates of deposit of $2 million.

     The net interest margin for the fourth quarter of 2009 was 3.10%, compared to 2.78% in the fourth quarter of 2008 and 3.25% in the third quarter of 2009. The increase in net interest margin in the fourth quarter of 2009 compared to the fourth quarter of 2008 is primarily attributable to the acquisition of the life insurance premium finance portfolio and lower costs of interest-bearing deposits. In the fourth quarter of 2009, the yield on loans decreased 15 basis points and the rate on interest-bearing deposits decreased 21 basis points compared to the third quarter of 2009. The bulk of the decrease in yield on loans is attributable to life insurance premium finance receivables as there were fewer prepayments in the fourth quarter. Management believes opportunities for increasing credit spreads in commercial loan portfolio and re-pricing of maturities of retail certificates of deposits should contribute to net interest margin expansion. Also contributing to the decrease in the net interest margin in the fourth quarter of 2009 when compared to the third quarter of 2009 is an increase in the average balance of liquidity management assets, primarily liquid over-night funds and short-term interest-bearing deposits with banks, of $491 million as a result of the securitization transaction completed in September of 2009. These excess liquid funds earned less than 50 basis points during the fourth quarter of 2009.

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     Non-interest income totaled $85.1 million in the fourth quarter of 2009, increasing $65.7 million, or 339%, compared to the fourth quarter of 2008 and decreasing $65.6 million, or 173% on an annualized basis, compared to the third quarter of 2009. The change, in comparison to both prior periods, was primarily attributable to the bargain purchase gain recorded relating to the acquisition of the premium finance assets as described earlier under “Acquisitions” and the gain on the sale of loans in a securitization as described earlier under “Securitizations – Sale of Loans.” In addition, mortgage banking revenue increased $13.4 million when compared to the fourth quarter of 2008 and increased $3.3 million when compared to the third quarter of 2009. These changes were primarily attributable to varying levels of activity in mortgage loans originated for sale to the secondary market during 2009 and higher spreads on loans sold in the fourth quarter as mortgage interest rates decreased during the quarter. Mortgages originated for sale totaled $962 million in the fourth quarter of 2009 compared to $960 million in the third quarter of 2009 and $263 million in the fourth quarter of 2008.

     Non-interest expense totaled $90.3 million in the fourth quarter of 2009, increasing $25.4 million, or 39%, compared to the fourth quarter of 2008 and decreasing $2.2 million, or 10% on an annualized basis, compared to the third quarter of 2009. The increase compared to the fourth quarter of 2008 was attributable to a $4.7 million increase in other real estate expenses (including losses recognized on sales), a $12.3 million increase in salaries and employee benefits, a $1.2 million increase in professional fees and a $3.1 million increase in the FDIC deposit insurance expense.

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Financial Performance Overview — Full Year 2009

     The net interest margin for 2009 was 3.01%, compared to 2.81% in 2008. The increase in the net interest margin in 2009 when compared to 2008 is primarily attributable to the positive impact of controlling interest-bearing deposit costs and the positive impact of the transaction described earlier under “Acquisitions” which partially mitigated the overall decline in loan yields in 2009. The yield on earning assets decreased by 81 basis points in 2009 compared to 2008 while the rate paid on total interest-bearing deposits decreased by 102 basis points in 2009 compared 2008.

     Non-interest income totaled $317.6 million in 2009, increasing $218.0 million, or 219%, compared to 2008. The increase was primarily attributable to the $156.0 million bargain purchase gain, an increase of $47.3 million in mortgage banking revenue and an increase in gains on sales of commercial premium finance receivables of $6.1 million. The increase in mortgage banking revenue is primarily attributable to a significant increase in mortgage loans originated and sold to the secondary market. Mortgages originated for sale totaled $4.7 billion in 2009 compared to $1.6 billion in 2008. In 2009 the Company recognized an increase of $27.4 million in trading income. Offsetting the increase in trading income was the decrease of $27.0 million on fees from the sale of covered call options compared to 2008. The majority of the increase in trading income resulted from an increase in the market value of certain collateralized mortgage obligations held as trading assets. The Company purchased these securities at a significant discount during the first quarter of 2009. These securities have increased in value since their purchase due to market spreads tightening, increased mortgage prepayments due to a favorable mortgage rate environment and lower than projected default rates.

     Non-interest expense totaled $344.1 million in 2009, increasing $87.9 million, or 34%, compared to 2008. The change compared to 2008 was attributable to a $41.8 million increase in salaries and employee benefits and a $15.6 million increase in FDIC insurance expense related to deposit insurance rate increases, the one-time industry-wide FDIC deposit insurance special assessment in the second quarter of 2009 and growth in the assessable deposit base. Additionally, $13.4 million of increased expenses related to other real-estate owned (including losses on sales) and $4.6 million from increased professional fees, primarily as a result of the elevated level of non-performing assets contributed to the $87.9 million non-interest expense growth. The $41.8 million increase in salaries and employee benefits is largely attributable to an increase in variable pay (commissions) of $22.0 million primarily as a result of the higher mortgage loan origination volumes.

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Financial Performance Overview — Credit Quality

     Non-performing loans totaled $131.8 million, or 1.57% of total loans, at December 31, 2009, compared to $231.7 million, or 2.80% of total loans, at September 30, 2009 and $136.1 million, or 1.79% of total loans, at December 31, 2008. Other real-estate owned (“OREO”) of $80.2 million at December 31, 2009 was up $39.5 million compared to September 30, 2009 and increased $47.6 million compared to December 31, 2008. See “Other Real Estate Owned” later in this document for more detail.

     Management’s objective was to begin 2010 with a large portion of the Company’s problem assets cleared from its balance sheet. During the latter half of 2009, management focused on significantly lowering the Company’s level of non-performing loans. In the fourth quarter, this was accomplished through a focus on gaining control or getting possession of collateral from borrowers whose loans were in non-accrual status. Achievement of this goal enabled a number of these properties to be transferred to other real estate owned. Those properties the Company obtained via foreclosure or via deed in lieu of foreclosure were aggressively marketed for sale. Additionally, management worked with financially distressed borrowers to restructure $32 million of loans. These actions helped distressed borrowers maintain their homes or businesses and kept these loans in an accruing status for the Company.

     The provision for credit losses totaled $38.6 million for the fourth quarter of 2009 compared to $91.2 million for the third quarter of 2009 and $14.5 million in the fourth quarter of 2008. Net charge-offs for the fourth quarter totaled 161 basis points on an annualized basis compared to 53 basis points on an annualized basis in the fourth quarter of 2008 and 365 basis points on an annualized basis in the third quarter of 2009. The provision for credit losses totaled $168.0 million for all of 2009 compared to $57.4 million for all of 2008. Net charge-offs for the full year of 2009 totaled 165 basis points compared to 51 basis points for the full year of 2008.

     The allowance for credit losses at December 31, 2009 totaled $101.9 million and increased to 1.21% of total loans compared to $98.2 million or 1.19% of total loans at September 30, 2009 and $71.4 million, or 0.94% of total loans at December 31, 2008. In addition, at December 31, 2009, there are $37.3 million of non-accretable discounts on the purchased life insurance premium finance receivables. Adding the reserve for unfunded lending-related commitments and non-accretable discounts on the purchased premium finance receivables brings the Company’s total credit-related reserves to $139 million, or 1.65% of total loans, as of December 31, 2009.

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WINTRUST FINANCIAL CORPORATION
SELECTED FINANCIAL HIGHLIGHTS

	Three Months Ended						Twelve Months Ended
	December 31,						December 31,
(Dollars in thousands, except per share data)	2009			2008			2009			2008
Selected Financial Condition Data (at end of period):
Total assets	$	12,215,620		$	10,658,326
Total loans		8,411,771			7,621,069
Total deposits		9,917,074			8,376,750
Junior subordinated debentures		249,493			249,515
Total shareholders’ equity		1,138,639			1,066,572
Selected Statements of Income Data:
Net interest income	$	86,934		$	62,745		$	311,876		$	244,567
Net revenue(1)		172,022			82,117			629,523			344,245
Income before taxes		43,102			2,727			117,504			30,641
Net income		28,167			1,955			73,069			20,488
Net income per common share — Basic		0.96			0.02			2.23			0.78
Net income per common share — Diluted		0.90			0.02			2.18			0.76
Selected Financial Ratios and Other Data:
Performance Ratios:
Net interest margin(2)		3.10	%		2.78	%		3.01	%		2.81	%
Non-interest income to average assets		2.77			0.77			2.78			1.02
Non-interest expense to average assets		2.94			2.57			3.01			2.63
Net overhead ratio(3)		0.17			1.80			0.23			1.60
Efficiency ratio(2) (4)		52.54			75.22			54.44			73.00
Return on average assets		0.92			0.08			0.64			0.21
Return on average equity		10.97			0.22			6.70			2.44
Average total assets	$	12,189,096		$	10,060,206		$	11,415,322		$	9,753,220
Average total shareholders’ equity		1,126,594			846,982			1,081,792			779,437
Average loans to average deposits ratio		86.9	%		93.5	%		90.5	%		94.3	%
Common Share Data at end of period:
Market price per common share	$	30.79		$	20.57
Book value per common share	$	35.27		$	33.03
Common shares outstanding		24,206,819			23,756,674
Other Data at end of period:
Leverage ratio(5)		9.28	%		10.55	%
Tier 1 capital to risk-weighted assets(5)		11.20	%		11.63	%
Total capital to risk-weighted assets(5)		12.67	%		13.07	%
Allowance for credit losses(6)	$	101,831		$	71,352
Credit discounts on purchased loans(7)		37,323			—
Total credit-related reserves		139,154			71,352
Non-performing loans		131,804			136,094
Allowance for credit losses to total loans(6)		1.21	%		0.94	%
Total credit-related reserves to total loans(8)		1.65	%		0.94	%
Non-performing loans to total loans		1.57	%		1.79	%
Number of:
Bank subsidiaries		15			15
Non-bank subsidiaries		8			7
Banking offices		78			79

(1)	Net revenue is net interest income plus non-interest income.
(2)	See “Supplemental Financial Measures/Ratios” for additional information on this performance measure/ratio.
(3)	The net overhead ratio is calculated by netting total non-interest expense and total non-interest income, annualizing this amount, and dividing by that period’s average total assets. A lower ratio indicates a higher degree of efficiency.
(4)	The efficiency ratio is calculated by dividing total non-interest expense by tax-equivalent net revenues (less securities gains or losses). A lower ratio indicates more efficient revenue generation.
(5)	Capital ratios for current quarter-end are estimated.
(6)	The allowance for credit losses includes both the allowance for loan losses and the allowance for lending-related commitments.
(7)	Represents the credit discounts on purchased life insurance premium finance loans.
(8)	The sum of allowance for credit losses and credit discounts on purchased life insurance premium finance loans divided by total loans outstanding plus the credit discounts on purchased life insurance premium finance loans.

12

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CONDITION

	(Unaudited)			(Unaudited)
	December 31,			September 30,			December 31,
(In thousands)	2009			2009			2008
Assets
Cash and due from banks	$	135,133		$	128,898		$	219,794
Federal funds sold and securities purchased under resale agreements		23,483			22,863			226,110
Interest bearing deposits with banks		1,025,663			1,168,362			123,009
Available-for-sale securities, at fair value		1,328,815			1,434,248			784,673
Trading account securities		33,774			29,204			4,399
Brokerage customer receivables		20,871			19,441			17,901
Loans held-for-sale		275,715			193,255			61,116
Loans, net of unearned income		8,411,771			8,275,257			7,621,069
Less: Allowance for loan losses		98,277			95,096			69,767
Net loans		8,313,494			8,180,161			7,551,302
Premises and equipment, net		350,345			352,890			349,875
Accrued interest receivable and other assets		416,678			315,806			240,664
Trade date securities receivable		—			—			788,565
Goodwill		278,025			276,525			276,310
Other intangible assets		13,624			14,368			14,608
Total assets	$	12,215,620		$	12,136,021		$	10,658,326
Liabilities and Shareholders’ Equity
Deposits:
Non-interest bearing	$	864,306		$	841,668		$	757,844
Interest bearing		9,052,768			9,005,495			7,618,906
Total deposits		9,917,074			9,847,163			8,376,750
Notes payable		1,000			1,000			1,000
Federal Home Loan Bank advances		430,987			433,983			435,981
Other borrowings		247,437			252,071			336,764
Subordinated notes		60,000			65,000			70,000
Junior subordinated debentures		249,493			249,493			249,515
Accrued interest payable and other liabilities		170,990			181,229			121,744
Total liabilities		11,076,981			11,029,939			9,591,754
Shareholders’ equity:
Preferred stock		284,824			284,061			281,873
Common stock		27,079			26,965			26,611
Surplus		589,939			580,988			571,887
Treasury stock		(122,733	)		(122,437	)		(122,290	)
Retained earnings		366,152			342,873			318,793
Accumulated other comprehensive loss		(6,622	)		(6,368	)		(10,302	)
Total shareholders’ equity		1,138,639			1,106,082			1,066,572
Total liabilities and shareholders’ equity	$	12,215,620		$	12,136,021		$	10,658,326

13

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)

	Three Months Ended					Years Ended
	December 31,					December 31,
(In thousands, except per share data)	2009		2008			2009			2008
Interest income
Interest and fees on loans	$	122,140	$	107,598		$	465,777		$	443,849
Interest bearing deposits with banks		1,369		125			3,574			340
Federal funds sold and securities purchased under resale agreements		38		30			271			1,333
Securities		13,119		17,868			57,371			68,101
Trading account securities		20		33			106			102
Brokerage customer receivables		143		164			515			998
Total interest income		136,829		125,818			527,614			514,723
Interest expense
Interest on deposits		38,998		50,740			171,259			219,437
Interest on Federal Home Loan Bank advances		4,510		4,570			18,002			18,266
Interest on notes payable and other borrowings		1,663		2,387			7,064			10,718
Interest on subordinated notes		286		770			1,627			3,486
Interest on junior subordinated debentures		4,438		4,606			17,786			18,249
Total interest expense		49,895		63,073			215,738			270,156
Net interest income		86,934		62,745			311,876			244,567
Provision for credit losses		38,603		14,456			167,932			57,441
Net interest income after provision for credit losses		48,331		48,289			143,944			187,126
Non-interest income
Wealth management		8,047		6,705			28,357			29,385
Mortgage banking		16,495		3,138			68,527			21,258
Service charges on deposit accounts		3,437		2,684			13,037			10,296
Gain on sales of commercial premium finance receivables		4,429		361			8,576			2,524
Gains (losses) on available-for-sale securities, net		642		(3,618	)		(268	)		(4,171	)
Gain on bargain purchase		42,951		—			156,013			—
Other		9,087		10,102			43,405			40,386
Total non-interest income		85,088		19,372			317,647			99,678
Non-interest expense
Salaries and employee benefits		47,955		35,616			186,878			145,087
Equipment		4,097		4,190			16,119			16,215
Occupancy, net		6,124		5,947			23,806			22,918
Data processing		3,404		3,007			12,982			11,573
Advertising and marketing		1,366		1,642			5,369			5,351
Professional fees		3,556		2,334			13,399			8,824
Amortization of other intangible assets		744		781			2,784			3,129
Other		23,071		11,417			82,750			43,066
Total non-interest expense		90,317		64,934			344,087			256,163
Income before taxes		43,102		2,727			117,504			30,641
Income tax expense		14,935		772			44,435			10,153
Net income	$	28,167	$	1,955		$	73,069		$	20,488
Preferred stock dividends and discount accretion		4,888		1,532			19,556			2,076
Net income applicable to common shares	$	23,279	$	423		$	53,513		$	18,412
Net income per common share — Basic	$	0.96	$	0.02		$	2.23		$	0.78
Net income per common share — Diluted	$	0.90	$	0.02		$	2.18		$	0.76
Cash dividends declared per common share	$	—	$	—		$	0.27		$	0.36
Weighted average common shares outstanding		24,166		23,726			24,010			23,624
Dilutive potential common shares		2,845		447			2,335			507
Average common shares and dilutive common shares		27,011		24,173			26,345			24,131

14

SUPPLEMENTAL FINANCIAL MEASURES/RATIOS

The accounting and reporting policies of Wintrust conform to generally accepted accounting principles (“GAAP”) in the United States and prevailing practices in the banking industry. However, certain non-GAAP performance measures and ratios are used by management to evaluate and measure the Company’s performance. These include taxable-equivalent net interest income (including its individual components), net interest margin (including its individual components) and the efficiency ratio. Management believes that these measures and ratios provide users of the Company’s financial information a more meaningful view of the performance of the interest-earning and interest-bearing liabilities and of the Company’s operating efficiency. Other financial holding companies may define or calculate these measures and ratios differently.

Management reviews yields on certain asset categories and the net interest margin of the Company and its banking subsidiaries on a fully taxable-equivalent (“FTE”) basis. In this non-GAAP presentation, net interest income is adjusted to reflect tax-exempt interest income on an equivalent before-tax basis. This measure ensures comparability of net interest income arising from both taxable and tax-exempt sources. Net interest income on a FTE basis is also used in the calculation of the Company’s efficiency ratio. The efficiency ratio, which is calculated by dividing non-interest expense by total taxable-equivalent net revenue (less securities gains or losses), measures how much it costs to produce one dollar of revenue. Securities gains or losses are excluded from this calculation to better match revenue from daily operations to operational expenses.

A reconciliation of certain non-GAAP performance measures and ratios used by the Company to evaluate and measure the Company’s performance to the most directly comparable GAAP financial measures is shown below:

	Three Months Ended						Years Ended
	December 31,						December 31,
(Dollars in thousands)	2009			2008			2009			2008
(A) Interest income (GAAP)	$	136,829		$	125,818		$	527,614		$	514,723
Taxable-equivalent adjustment:
— Loans		99			146			462			645
— Liquidity management assets		406			432			1,720			1,795
— Other earning assets		9			17			38			47
Interest income — FTE	$	137,343		$	126,413		$	529,834		$	517,210
(B) Interest expense (GAAP)		49,895			63,073			215,738			270,156
Net interest income — FTE	$	87,448		$	63,340		$	314,096		$	247,054
(C) Net interest income (GAAP) (A minus B)	$	86,934		$	62,745		$	311,876		$	244,567
(D) Net interest margin (GAAP)		3.08	%		2.75	%		2.99	%		2.78	%
Net interest margin — FTE		3.10	%		2.78	%		3.01	%		2.81	%
(E) Efficiency ratio (GAAP)		52.70	%		75.74	%		54.64	%		73.52	%
Efficiency ratio — FTE		52.54	%		75.22	%		54.44	%		73.00	%

15

Loans

Loan Portfolio Mix and Growth Rates

										% Growth
										From			From
	December 31,			September 30,			December 31,			September 30,			December 31,
(Dollars in thousands)	2009			2009			2008			2009(1)			2008
Balance:
Commercial and commercial real estate	$	5,039,906		$	5,035,859		$	4,778,664			—	%		5	%
Home equity		930,482			928,548			896,438			1			4
Residential real estate		306,296			281,151			262,908			35			17
Premium finance receivables — commercial		730,144			752,032			1,243,858			(12	)		(41	)
Premium finance receivables — life insurance		1,197,893			1,045,653			102,728			58		NM
Indirect consumer loans(2)		98,134			115,528			175,955			(60	)		(44	)
Other loans		108,916			116,486			160,518			(26	)		(32	)
Total loans, net of unearned income	$	8,411,771		$	8,275,257		$	7,621,069			7	%		10	%
Mix:
Commercial and commercial real estate		60	%		61	%		63	%
Home equity		11			11			12
Residential real estate		4			4			3
Premium finance receivables — commercial		9			9			16
Premium finance receivables — life insurance		14			13			2
Indirect consumer loans(2)		1			1			2
Other loans		1			1			2
Total loans, net of unearned income		100	%		100	%		100	%

(1)	Annualized
(2)	Includes autos, boats, snowmobiles and other indirect consumer loans.

NM = Not Meaningful

Commercial and Commercial Real Estate Loans

								> 90 Days		Allowance
As of December 31, 2009			%of					Past Due		For Credit
			Total			Non-		and Still		Losses
(Dollars in thousands)	Balance		Loans			accrual		Accruing		Allocation
Commercial:
Commercial and industrial	$	1,361,225		16.2	%	$	15,094	$	561	$	22,579
Franchise		133,953		1.6			—		—		2,118
Mortgage warehouse lines of credit		121,781		1.4			—		—		1,643
Community Advantage — homeowner associations		67,086		0.8			—		—		161
Aircraft		41,654		0.5			—		—		167
Other		17,510		0.2			1,415		—		1,344
Total Commercial	$	1,743,209		20.7	%	$	16,509	$	561	$	28,012
Commercial Real Estate:
Land and development	$	1,003,728		11.9	%	$	65,762	$	—	$	25,188
Office		529,856		6.3			3,222		—		6,273
Industrial		463,526		5.5			5,686		—		6,316
Retail		554,934		6.6			1,593		—		7,487
Mixed use and other		744,653		8.8			4,376		—		9,242
Total Commercial Real Estate Loans	$	3,296,697		39.2	%	$	80,639	$	—	$	54,506
Total Commercial and Commercial Real Estate	$	5,039,906		59.9	%	$	97,148	$	561	$	82,518
Commercial Real Estate—collateral location by state:
Illinois	$	2,641,291		80.1	%
Wisconsin		366,862		11.1
Total primary markets	$	3,008,153		91.2	%
Arizona		46,257		1.4
Indiana		46,099		1.4
Florida		45,655		1.4
Other (no individual state greater than 0.9%)		150,533		4.6
Total	$	3,296,697		100.0	%

16

DEPOSITS

Deposit Portfolio Mix and Growth Rates

										% Growth
										From			From
	December 31,			September 30,			December 31,			September 30,			December 31,
(Dollars in thousands)	2009			2009			2008			2009(1)			2008
Balance:
Non-interest bearing	$	864,306		$	841,668		$	757,844			11	%		14	%
NOW		1,415,856			1,245,689			1,040,105			54			36
Wealth Management deposits(2)		971,113			935,740			716,178			15			36
Money market		1,534,632			1,468,228			1,124,068			18			37
Savings		561,916			513,239			337,808			38			66
Time certificates of deposit		4,569,251			4,842,599			4,400,747			(22	)		4
Total deposits	$	9,917,074		$	9,847,163		$	8,376,750			3	%		18	%
Mix:
Non-interest bearing		9	%		9	%		9	%
NOW		14			13			12
Wealth Management deposits(2)		10			9			9
Money market		15			15			13
Savings		6			5			4
Time certificates of deposit		46			49			53
Total deposits		100	%		100	%		100	%

(1)	Annualized
(2)	Represents deposit balances at the Company’s subsidiary banks from brokerage customers of Wayne Hummer Investments, trust and asset management customers of Wayne Hummer Trust Company and brokerage customers from unaffiliated companies which have been placed into deposit accounts of the Banks.

Deposit Maturity Analysis
As of December 31, 2009

											Weighted-
	Non-										Average
	Interest		Savings								Rate of
	Bearing		And				Time				Maturing Time
	and		Money		Wealth		Certificates		Total		Certificates
(Dollars in thousands)	NOW(1)		Market(1)		Mgt(1) (2)		of Deposit		Deposits		of Deposit
1 — 3 months	$	2,280,162	$	2,096,548	$	877,113	$	1,147,432	$	6,401,255		2.12	%
4 — 6 months		—		—		—		866,120		866,120		2.32
7 — 9 months		—		—		—		652,724		652,724		2.29
10 — 12 months		—		—		94,000		678,940		772,940		2.11
13 — 18 months		—		—		—		629,013		629,013		2.66
19 — 24 months		—		—		—		230,110		230,110		2.81
24+ months		—		—		—		364,912		364,912		3.30
Total	$	2,280,162	$	2,096,548	$	971,113	$	4,569,251	$	9,917,074		2.39	%

(1)	Balances of non-contractual maturity deposits are shown as maturing in the earliest time frame. These deposits do not have contractual maturities and re-price in varying degrees to changes in overall interest rates.
(2)	Wealth management deposit balances from unaffiliated companies are shown maturing in the period in which the current contractual obligation to hold these funds matures.

17

NET INTEREST INCOME

The following table presents a summary of Wintrust’s average balances, net interest income and related net interest margins, calculated on a fully tax-equivalent basis, for the fourth quarter of 2009 compared to the fourth quarter of 2008 (linked quarters):

	For the Three Months Ended								For the Three Months Ended
	December 31, 2009								December 31, 2008
(Dollars in thousands)	Average			Interest		Rate			Average			Interest		Rate
Liquidity management assets(1) (2) (7)	$	2,569,584		$	14,932		2.31	%	$	1,607,707		$	18,455		4.57	%
Other earning assets(2) (3) (7)		26,167			171		2.59			21,630			214		3.94
Loans, net of unearned income(2) (4) (7)		8,604,007			122,240		5.64			7,455,418			107,744		5.75
Total earning assets(7)	$	11,199,757		$	137,343		4.87	%	$	9,084,755		$	126,413		5.54	%
Allowance for loan losses		(97,269	)							(67,342	)
Cash and due from banks		124,219								127,700
Other assets		962,389								915,093
Total assets	$	12,189,096							$	10,060,206
Interest-bearing deposits	$	9,016,863		$	38,998		1.72	%	$	7,271,505		$	50,740		2.78	%
Federal Home Loan Bank advances		432,028			4,510		4.14			439,432			4,570		4.14
Notes payable and other borrowings		234,754			1,663		2.81			379,914			2,387		2.50
Subordinated notes		63,261			286		1.77			73,364			770		4.11
Junior subordinated debentures		249,493			4,438		6.96			249,520			4,606		7.22
Total interest-bearing liabilities	$	9,996,399		$	49,895		1.98	%	$	8,413,735		$	63,073		2.98	%
Non-interest bearing deposits		886,988								705,616
Other liabilities		179,115								93,873
Equity		1,126,594								846,982
Total liabilities and shareholders’ equity	$	12,189,096							$	10,060,206
Interest rate spread(5) (7)							2.89	%							2.56	%
Net free funds/contribution(6)	$	1,203,358					0.21		$	671,020					0.22
Net interest income/Net interest margin(7)				$	87,448		3.10	%				$	63,340		2.78	%

(1)	Liquidity management assets include available-for-sale securities, interest earning deposits with banks, federal funds sold and securities purchased under resale agreements.
(2)	Interest income on tax-advantaged loans, trading account securities and securities reflects a tax-equivalent adjustment based on a marginal federal corporate tax rate of 35%. The total adjustments for the three months ended December 31, 2009 and 2008 were $513,000 and $594,000, respectively.
(3)	Other earning assets include brokerage customer receivables and trading account securities.
(4)	Loans, net of unearned income, include loans held-for-sale and non-accrual loans.
(5)	Interest rate spread is the difference between the yield earned on earning assets and the rate paid on interest-bearing liabilities.
(6)	Net free funds are the difference between total average earning assets and total average interest-bearing liabilities. The estimated contribution to net interest margin from net free funds is calculated using the rate paid for total interest-bearing liabilities.
(7)	See “Supplemental Financial Measures/Ratios” for additional information on this performance measure/ratio.

18

The following table presents a summary of Wintrust’s average balances, net interest income and related net interest margins, calculated on a fully tax-equivalent basis, for the fourth quarter of 2009 compared to the third quarter of 2009 (sequential quarters):

	For the Three Months Ended								For the Three Months Ended
	December 31, 2009								September 30, 2009
(Dollars in thousands)	Average			Interest		Rate			Average			Interest		Rate
Liquidity management assets(1) (2) (7)	$	2,569,584		$	14,932		2.31	%	$	2,078,330		$	15,403		2.94	%
Other earning assets(2) (3) (7)		26,167			171		2.59			24,874			148		2.36
Loans, net of unearned income(2) (4) (7)		8,604,007			122,240		5.64			8,665,281			126,541		5.79
Total earning assets(7)	$	11,199,757		$	137,343		4.87	%	$	10,768,485		$	142,092		5.24	%
Allowance for loan losses		(97,269	)							(85,300	)
Cash and due from banks		124,219								109,645
Other assets		962,389								1,004,690
Total assets	$	12,189,096							$	11,797,520
Interest-bearing deposits	$	9,016,863		$	38,998		1.72	%	$	8,799,578		$	42,806		1.93	%
Federal Home Loan Bank advances		432,028			4,510		4.14			434,134			4,536		4.14
Notes payable and other borrowings		234,754			1,663		2.81			245,352			1,779		2.88
Subordinated notes		63,261			286		1.77			65,000			333		2.01
Junior subordinated debentures		249,493			4,438		6.96			249,493			4,460		6.99
Total interest-bearing liabilities	$	9,996,399		$	49,895		1.98	%	$	9,793,557		$	53,914		2.18	%
Non-interest bearing deposits		886,988								775,202
Other liabilities		179,115								158,666
Equity		1,126,594								1,070,095
Total liabilities and shareholders’ equity	$	12,189,096							$	11,797,520
Interest rate spread(5) (7)							2.89	%							3.06	%
Net free funds/contribution(6)	$	1,203,358					0.21		$	974,928					0.19
Net interest income/Net interest margin(7)				$	87,448		3.10	%				$	88,178		3.25	%

(1)	Liquidity management assets include available-for-sale securities, interest earning deposits with banks, federal funds sold and securities purchased under resale agreements.
(2)	Interest income on tax-advantaged loans, trading account securities and securities reflects a tax-equivalent adjustment based on a marginal federal corporate tax rate of 35%. The total adjustments for the three months ended December 31, 2009 was $513,000 and for the three months ended September 30, 2009 was $515,000.
(3)	Other earning assets include brokerage customer receivables and trading account securities.
(4)	Loans, net of unearned income, include loans held-for-sale and non-accrual loans.
(5)	Interest rate spread is the difference between the yield earned on earning assets and the rate paid on interest-bearing liabilities.
(6)	Net free funds are the difference between total average earning assets and total average interest-bearing liabilities. The estimated contribution to net interest margin from net free funds is calculated using the rate paid for total interest-bearing liabilities.
(7)	See “Supplemental Financial Measures/Ratios” for additional information on this performance measure/ratio.

The lower level of net interest income recorded in the fourth quarter of 2009 compared to the third quarter of 2009 was attributable to an increase in the average balance of liquidity management assets, primarily liquid over-night funds and short-term interest-bearing deposits with banks, of $491 million as a result of the securitization transaction completed in September of 2009. Average earning asset growth of $431 million in the fourth quarter of 2009 compared to the third quarter of 2009 was comprised of $491 million of liquid management asset growth offset by a decrease of $61 million in average total loans. The $431 million of average earning asset growth was primarily funded by a $217 million increase in the average balances of interest-bearing deposits and a $228 million increase in the average balance of net free funds.

In the fourth quarter of 2009, the yield on loans decreased 15 basis points and the rate on interest-bearing deposits decreased 21 basis points compared to the third quarter of 2009. The bulk of the decrease in yield on loans is attributable to the life insurance premium finance receivables as lower levels of discount accretion were recognized in the fourth quarter as a result of lower prepayments of the purchased life insurance premium finance receivables compared to the third quarter of 2009. Management believes opportunities remain for increasing credit spreads in

19

commercial and commercial real estate loan portfolios and for lower rates from the re-pricing of maturing retail certificates of deposits, both of which should contribute to net interest margin expansion.

The following table presents a summary of Wintrust’s average balances, net interest income and related net interest margins, calculated on a fully tax-equivalent basis, for the year ended December 31, 2009 compared to the year ended December 31, 2008:

	For the Year Ended								For the Year Ended
	December 31, 2009								December 31, 2008
(Dollars in thousands)	Average			Interest		Rate			Average			Interest		Rate
Liquidity management assets(1) (2) (7)	$	2,086,653		$	62,936		3.02	%	$	1,532,282		$	71,569		4.67	%
Other earning assets(2) (3) (7)		23,979			659		2.75			23,052			1,147		4.98
Loans, net of unearned income(2) (4) (7)		8,335,421			466,239		5.59			7,245,609			444,494		6.13
Total earning assets(7)	$	10,446,053		$	529,834		5.07	%	$	8,800,943		$	517,210		5.88	%
Allowance for loan losses		(82,029	)							(57,656	)
Cash and due from banks		108,471								117,923
Other assets		942,827								892,010
Total assets	$	11,415,322							$	9,753,220
Interest-bearing deposits	$	8,419,081		$	171,259		2.03	%	$	7,014,217		$	219,437		3.13	%
Federal Home Loan Bank advances		434,520			18,002		4.14			435,761			18,266		4.19
Notes payable and other borrowings		258,322			7,064		2.73			387,377			10,718		2.77
Subordinated notes		66,205			1,627		2.42			74,589			3,486		4.60
Junior subordinated debentures		249,497			17,786		7.03			249,575			18,249		7.19
Total interest-bearing liabilities	$	9,427,625		$	215,738		2.29	%	$	8,161,519		$	270,156		3.31	%
Non-interest bearing deposits		788,034								672,924
Other liabilities		117,871								139,340
Equity		1,081,792								779,437
Total liabilities and shareholders’ equity	$	11,415,322							$	9,753,220
Interest rate spread(5) (7)							2.78	%							2.57	%
Net free funds/contribution(6)	$	1,018,428					0.23		$	639,424					0.24
Net interest income/Net interest margin(7)				$	314,096		3.01	%				$	247,054		2.81	%

(1)	Liquidity management assets include available-for-sale securities, interest earning deposits with banks, federal funds sold and securities purchased under resale agreements.
(2)	Interest income on tax-advantaged loans, trading account securities and securities reflects a tax-equivalent adjustment based on a marginal federal corporate tax rate of 35%. The total adjustments for the twelve months ended December 31, 2009 and 2008 were $2.2 million and $2.5 million, respectively.
(3)	Other earning assets include brokerage customer receivables and trading account securities.
(4)	Loans, net of unearned income, include loans held-for-sale and non-accrual loans.
(5)	Interest rate spread is the difference between the yield earned on earning assets and the rate paid on interest-bearing liabilities.
(6)	Net free funds are the difference between total average earning assets and total average interest-bearing liabilities. The estimated contribution to net interest margin from net free funds is calculated using the rate paid for total interest-bearing liabilities.
(7)	See “Supplemental Financial Measures/Ratios” for additional information on this performance measure/ratio.

20

NON-INTEREST INCOME

For the fourth quarter of 2009, non-interest income totaled $85.1 million, an increase of $65.7 million compared to the fourth quarter of 2008. The increase was primarily attributable to the bargain purchase gain related to the life insurance premium finance loan acquisition (see “Acquisitions”), the gains associated with the securitization transaction (see “Securitization - Sale of Loans”), an increase in mortgage banking revenue and trading income offset by lower levels of fees from the sale of covered call options. For the full year of 2009, non-interest income totaled $317.6 million, an increase of $218.0 million compared to the full year of 2008.

The following table presents non-interest income by category for the periods presented:

	Three Months Ended
	December 31,					$			%
(Dollars in thousands)	2009		2008			Change			Change
Brokerage	$	5,034	$	4,310			724			17
Trust and asset management		3,013		2,395			618			26
Total wealth management		8,047		6,705			1,342			20
Mortgage banking		16,495		3,138			13,357		NM
Service charges on deposit accounts		3,437		2,684			753			28
Gain on sales of premium finance receivables		4,429		361			4,068		NM
(Losses) gains on available-for-sale securities, net		642		(3,618	)		4,260			118
Gain on bargain purchase		42,951		—			42,951		NM
Other:
Fees from covered call options		—		7,438			(7,438	)		(100	)
Bank Owned Life Insurance		642		(319	)		961		NM
Trading income		4,437		(105	)		4,542		NM
Administrative services		511		670			(159	)		(24	)
Miscellaneous		3,497		2,418			1,079			45
Total other		9,087		10,102			(1,015	)		(10	)
Total non-interest income	$	85,088	$	19,372			65,716		NM

	Years Ended
	December 31,						$			%
(Dollars in thousands)	2009			2008			Change			Change
Brokerage	$	17,726		$	18,649			(923	)		(5	)
Trust and asset management		10,631			10,736			(105	)		(1	)
Total wealth management		28,357			29,385			(1,028	)		(3	)
Mortgage banking		68,527			21,258			47,269		NM
Service charges on deposit accounts		13,037			10,296			2,741			27
Gain on sales of premium finance receivables		8,576			2,524			6,052		NM
Losses on available-for-sale securities, net		(268	)		(4,171	)		3,903			94
Gain on bargain purchase		156,013			—			156,013		NM
Other:
Fees from covered call options		1,998			29,024			(27,026	)		(93	)
Bank Owned Life Insurance		2,044			1,622			422			26
Trading income		27,692			291			27,401		NM
Administrative services		1,975			2,941			(966	)		(33	)
Miscellaneous		9,696			6,508			3,188			49
Total other		43,405			40,386			3,019			7
Total non-interest income	$	317,647		$	99,678			217,969		NM

NM = Not Meaningful

21

Wealth management is comprised of the trust and asset management revenue of Wayne Hummer Trust Company and the asset management fees, brokerage commissions, trading commissions and insurance product commissions at Wayne Hummer Investments and Wayne Hummer Asset Management Company. Wealth management revenue totaled $8.0 million in the fourth quarter of 2009 and $6.7 million in the fourth quarter of 2008. Increased asset valuations due to the recent equity market improvements have helped revenue growth from trust and asset management activities. On a full-year basis, wealth management revenue totaled $28.4 million in 2009, down $1.0 million, or 3% compared to 2008.

Mortgage banking includes revenue from activities related to originating, selling and servicing residential real estate loans for the secondary market. For the quarter ended December 31, 2009, this revenue source totaled $16.5 million, an increase of $13.4 million when compared to the fourth quarter of 2008. The increase was primarily attributable to gains recognized on loans sold to the secondary market. Future growth of mortgage banking is impacted by the interest rate environment and esidential housing conditions and will continue to be dependent upon both. Mortgages originated and sold totaled $962 million in the fourth quarter of 2009 compared to $960 million in the third quarter of 2009 and $263 million in the fourth quarter of 2008. The positive impact of the PMP transaction, completed at the end of 2008, contributed to mortgage banking revenue growth in all quarters of 2009. On a full-year basis, mortgage banking revenue totaled $68.5 million in 2009, increasing $47.3 million compared to 2008. Mortgages originated and sold totaled $4.7 billion in 2009 compared to $1.6 billion in 2008.

Service charges on deposit accounts totaled $3.4 million for the fourth quarter of 2009, an increase of $753,000, or 28%, when compared to the same quarter of 2008. The majority of deposit service charges relates to customary fees on overdrawn accounts and returned items. The level of service charges received is substantially below peer group levels, as management believes in the philosophy of providing high quality service without encumbering that service with numerous activity charges.

As a result of paydowns of loans in the revolving securitization facility, the Company transferred $357 million of property and casualty premium finance receivables to the securitization facility during the fourth quarter of 2009 and recognized $4.4 million of gains (see “Securitization — Sale of Loans”). No such sales occurred during the fourth quarter of 2008.

Other non-interest income for the fourth quarter of 2009 totaled $9.1 million, a decrease of $1.0 million, compared to $10.1 million in the fourth quarter of 2008. Trading income increased $4.5 million as the Company recognized $6.2 million in trading income resulting primarily from the increase in market value of certain collateralized mortgage obligations. The Company purchased these securities at a significant discount during the first quarter of 2009. These securities have increased in value since their purchase due to market spreads tightening, increased mortgage prepayments due to favorable mortgage rate environment and lower than projected default rates. Offsetting the increase in trading income were fees from certain covered call option transactions decreasing by $7.4 million, as no income was recorded from this activity in the fourth quarter of 2009. Historically, compression in the net interest margin was effectively offset, as has consistently been the case, by the Company’s covered call strategy. In the fourth quarter of 2009 management chose to not engage in covered call option activity due to lower than acceptable security yields which resulted in the elimination of revenue from the Company’s covered call strategy. An illustration of the past effectiveness of this strategy is shown in the Supplemental Financial Information section (see page titled “Net Interest Margin (Including Call Option Income)”).

22

The bargain purchase gain resulted from the acquisition of the life insurance premium finance receivable portfolio. See “Acquisitions” for a complete discussion of the transaction. The following table summarizes the components of this transaction:

Purchased Loan Portfolio
Summary of Acquisition

															Credit
															discounts -
	Gross		Net						Bargain						non-
	loan		purchase			Total			purchase			Accretable			accretable
(Dollars in thousands)	balance		price			discounts			gain			discounts			discounts
Loans purchased on July 28, 2009:
- Initial acquisition values	$	949,322	$	685,306		$	(264,016	)	$	(150,646	)	$	(74,837	)	$	(38,533	)
- Initial bargain purchase gain(4)										99,949			—			—
- Accretion (effective yield method)										—			3,530			—
- Bargain purchase gain recognized as accounts clear escrow(3)										11,313			—			—
- Accretion recognized as accounts prepay										—			3,925			2,338
Remaining balances at September 30, 2009(1)									$	(39,384	)	$	(67,382	)	$	(36,195	)
- Accretion (effective yield method)										—			5,057			—
- Bargain purchase gain recognized as accounts clear escrow(3)										28,490			—			—
- Accretion recognized as accounts prepay										—			2,708			1,612
- Credit loss										—			—			8
Remaining balances at December 31, 2009(1)					��				$	(10,894	)	$	(59,617	)	$	(34,575	)
Loans purchased on October 2, 2009:
- Initial acquisition values	$	83,392	$	60,460		$	(22,932	)	$	(14,461	)	$	(5,723	)	$	(2,748	)
- Initial bargain purchase gain										14,461			—			—
- Accretion (effective yield method)										—			314			—
Remaining balances at December 31, 2009(2)									$	—		$	(5,409	)	$	(2,748	)
Total remaining balances at December 31, 2009(1)									$	(10,894	)	$	(65,026	)	$	(37,323	)

(1)	The remaining unrecognized bargain purchase gain is recognizable subject to the receipt of required third party consents.
(2)	None of the purchase price proceeds from the October 2, 2009 purchase are held in escrow. The bargain purchase gain was fully recognizable in the fourth quarter of 2009.
(3)	Third party consents were received and funds were released from escrow.
(4)	An additional $1.8 million of gain was recognized in conjunction with the establishment of a customer list intangible asset.

23

NON-INTEREST EXPENSE

Non-interest expense for the fourth quarter of 2009 totaled $90.3 million and increased approximately $25.4 million, or 39%, from the fourth quarter 2008 total of $64.9 million. On a full-year basis, non-interest expense for 2009 totaled $344.1 million and increased $87.9 million, or 34% compared to 2008.

The following table presents non-interest expense by category for the periods presented:

	Three Months Ended
	December 31,				$			%
(Dollars in thousands)	2009		2008		Change			Change
Salaries and employee benefits	$	47,955	$	35,616		12,339			35
Equipment		4,097		4,190		(93	)		(2	)
Occupancy, net		6,124		5,947		177			3
Data processing		3,404		3,007		397			13
Advertising and marketing		1,366		1,642		(276	)		(17	)
Professional fees		3,556		2,334		1,222			52
Amortization of other intangible assets		744		781		(37	)		(5	)
Other:
Commissions — 3rd party brokers		757		802		(45	)		(6	)
Postage		1,367		1,012		355			35
Stationery and supplies		859		757		102			13
FDIC insurance		4,731		1,681		3,050			181
OREO expenses, net		5,293		641		4,652		NM
Miscellaneous		10,064		6,524		3,540			54
Total other		23,071		11,417		11,654			102
Total non-interest expense	$	90,317	$	64,934		25,383			39

	Years Ended
	December 31,				$			%
(Dollars in thousands)	2009		2008		Change			Change
Salaries and employee benefits	$	186,878	$	145,087		41,791			29
Equipment		16,119		16,215		(96	)		(1	)
Occupancy, net		23,806		22,918		888			4
Data processing		12,982		11,573		1,409			12
Advertising and marketing		5,369		5,351		18			—
Professional fees		13,399		8,824		4,575			52
Amortization of other intangible assets		2,784		3,129		(345	)		(11	)
Other:
Commissions — 3rd party brokers		3,095		3,769		(674	)		(18	)
Postage		4,833		4,120		713			17
Stationery and supplies		3,189		3,005		184			6
FDIC Insurance		21,199		5,600		15,599		NM
OREO expenses, net		18,963		5,601		13,362		NM
Miscellaneous		31,471		20,971		10,500			50
Total other		82,750		43,066		39,684			92
Total non-interest expense	$	344,087	$	256,163		87,924			34

NM = Not Meaningful

Salaries and employee benefits comprised 53% of total non-interest expense in the fourth quarter of 2009 and 55% in the fourth quarter of 2008. Salaries and employee benefits expense increased $12.3 million, or 35%, in the fourth quarter of 2009 compared to the fourth quarter of 2008 primarily as a result of higher commission and incentive compensation expenses related to mortgage banking activities and the incremental costs of the PMP staff. The higher commission and incentive compensation expense is primarily attributable to an increase in variable pay (commissions) of $6.3 million as a result of the higher mortgage loan origination volumes. On a full-year basis, salaries and employee benefits in 2009 increased $41.8 million, or 29%, compared to 2008. Of this increase, $22 million was attributable to an increase in variable pay (commissions) primarily as a result of the higher mortgage loan origination volumes (including

24

the impact of PMP), approximately $10 million related to the base salaries of new employees as a result of the PMP transaction and increases in base salaries for existing employees of the Company.

Professional fees include legal, audit and tax fees, external loan review costs and normal regulatory exam assessments. Professional fees for the fourth quarter of 2009 were $3.6 million, an increase of $1.2 million, or 52%, compared to the same period in 2008. On a full-year basis, professional fees were $13.4 million in 2009, an increase of $4.6 million, or 52%, compared 2008. These increases are primarily a result of increased legal costs related to non-performing assets and acquisition related activities.

FDIC insurance totaled $4.7 million in the fourth quarter of 2009, an increase of $3.1 million compared to $1.7 million in the fourth quarter of 2008. On a full-year basis, FDIC insurance totaled $21.2 million in 2009, an increase of $15.6 million compared to $5.6 million in 2008. The increase in FDIC insurance rates at the beginning of 2009 and growth in the assessable deposit base contributed to the significant increases in FDIC insurance costs for the fourth quarter of 2009 while the full year of 2009 results were also negatively impacted by the industry-wide special assessment on financial institutions in the second quarter of 2009.

OREO expenses include all costs related with obtaining, maintaining and selling of other real estate owned properties. This expense totaled $5.3 million in the fourth quarter of 2009, an increase of $4.7 million compared to $641,000 in the fourth quarter of 2008. On a full-year basis, OREO expenses totaled $19.0 million in 2009, an increase of $13.4 million compared to $5.6 million in 2008.

Miscellaneous expense includes expenses such as ATM expenses, correspondent bank charges, directors’ fees, telephone, travel and entertainment, corporate insurance, dues and subscriptions and lending origination costs that are not deferred. Miscellaneous expenses in the fourth quarter of 2009 increased $3.5 million, or 54%, compared to the same period in the prior year. On full-year basis, miscellaneous expenses increased $10.5 million in 2009, or 50%, compared to 2008.

25

ASSET QUALITY

Allowance for Credit Losses

	Three Months Ended						Years Ended
	December 31,						December 31,
(Dollars in thousands)	2009			2008			2009			2008
Allowance for loan losses at beginning of period	$	95,096		$	66,327		$	69,767		$	50,389
Provision for credit losses		38,603			14,456			167,932			57,441
Reclassification to allowance for lending-related commitments		(494	)		(1,093	)		(2,037	)		(1,093	)
Charge-offs:
Commercial and commercial real estate loans		31,788			7,539			124,136			30,469
Home equity loans		1,572			231			4,605			284
Residential real estate loans		385			627			1,067			1,631
Premium finance receivables — commercial		2,532			1,275			8,153			4,073
Premium finance receivables — life insurance		—			—			—			—
Indirect consumer loans		427			501			1,848			1,322
Consumer and other loans		148			157			644			618
Total charge-offs		36,852			10,330			140,453			38,397
Recoveries:
Commercial and commercial real estate loans		789			211			1,242			496
Home equity loans		812			1			815			1
Residential real estate loans		—			—			—			—
Premium finance receivables — commercial		194			144			651			662
Premium finance receivables — life insurance		—			—			—			—
Indirect consumer loans		44			38			179			173
Consumer and other loans		85			13			181			95
Total recoveries		1,924			407			3,068			1,427
Net charge-offs		(34,928	)		(9,923	)		(137,385	)		(36,970	)
Allowance for loan losses at period end	$	98,277		$	69,767		$	98,277		$	69,767
Allowance for unfunded lending-related commitments at period end	$	3,554		$	1,586		$	3,554		$	1,586
Allowance for credit losses at period end	$	101,831		$	71,353		$	101,831		$	71,353
Credit-related discounts on purchased loans		37,323			—			37,323			—
Total credit reserves	$	139,154		$	71,353		$	139,154		$	71,353
Annualized net charge-offs by category as a percentage of its own respective category’s average:
Commercial and commercial real estate loans		2.42	%		0.62	%		2.46	%		0.65	%
Home equity loans		0.32			0.11			0.41			0.04
Residential real estate loans		0.28			0.79			0.21			0.49
Premium finance receivables — commercial		1.38			0.37			0.67			0.29
Premium finance receivables — life insurance		—			—			—			—
Indirect consumer loans		1.43			0.98			1.24			0.53
Consumer and other loans		0.22			0.35			0.35			0.32
Total loans, net of unearned income		1.61	%		0.53	%		1.65	%		0.51	%
Net charge-offs as a percentage of the provision for loan losses		90.48	%		68.64	%		81.81	%		64.36	%
Loans at period-end							$	8,411,771		$	7,621,068
Allowance for loan losses as a percentage of loans at period-end								1.17	%		0.92	%
Allowance for credit losses as a percentage of loans at period-end								1.21	%		0.94	%
Total credit reserves as a percentage of loans (net of discounts) at period-end								1.65	%		0.94	%

26

The allowance for credit losses is comprised of the allowance for loan losses and the allowance for lending-related commitments. The allowance for loan losses is a reserve against loan amounts that are actually funded and outstanding while the allowance for lending-related commitments relates to certain amounts that Wintrust is committed to lend but for which funds have not yet been disbursed. The allowance for lending-related commitments (separate liability account) represents the portion of the provision for credit losses that was associated with unfunded lending-related commitments. The provision for credit losses may contain both a component related to funded loans (provision for loan losses) and a component related to lending-related commitments (provision for unfunded loan commitments and letters of credit). Total credit-related reserves include the credit discounts on the purchased life insurance premium finance receivables which are netted with the loan balance.

The provision for credit losses totaled $38.6 million for the fourth quarter of 2009, $91.2 million in the third quarter of 2009 and $14.5 million for the fourth quarter of 2008. For the quarter ended December 31, 2009, net charge-offs totaled $34.9 million compared to $79.7 million in the third quarter of 2009 and $9.9 million recorded in the fourth quarter of 2008. On a ratio basis, annualized net charge-offs as a percentage of average loans were 1.61% in the fourth quarter of 2009, 3.65% in the third quarter of 2009, and 0.53% in the fourth quarter of 2008. On a full-year basis, the provision for credit losses totaled $167.9 million for 2009 and $57.4 million for 2008. Net charge-offs totaled $137.4 million in 2009 compared to $37.0 million recorded in 2008. On a ratio basis, annualized net charge-offs as a percentage of average loans were 1.65% in 2009 and 0.51% in 2008.

Management believes the allowance for loan losses is adequate to provide for inherent losses in the portfolio. There can be no assurances however, that future losses will not exceed the amounts provided for, thereby affecting future results of operations. The amount of future additions to the allowance for loan losses will be dependent upon management’s assessment of the adequacy of the allowance based on its evaluation of economic conditions, changes in real estate values, interest rates, the regulatory environment, the level of past-due and non-performing loans, and other factors. The increase from the end of the prior quarter reflects the continued economic weaknesses in the Company’s markets and is the result of an individual review of a significant number of individual credits as well as the overall risk factors impacting certain types of credits, specifically credits with residential development collateral valuation exposure.

27

The tables below show the aging of the Company’s loan portfolio at December 31, 2009 and September 30, 2009:

				90+ days			60-89			30-59
As of December 31, 2009	Non-			and still			days past			days past
(Dollars in thousands)	Accrual			accruing			due			due			Current			Total Loans
Loan Balances:
Commercial and commercial real estate loans	$	97,148		$	561		$	25,293		$	44,389		$	4,872,515		$	5,039,906
Home equity loans		8,883			—			894			2,107			918,598			930,482
Residential real estate loans		3,779			412			406			3,043			298,656			306,296
Premium finance receivables — commercial		11,878			6,271			3,975			9,639			698,381			730,144
Premium finance receivables — life insurance		704			—			5,385			1,854			1,189,950			1,197,893
Indirect consumer loans		995			461			614			2,143			93,921			98,134
Consumer and other loans		617			95			511			537			107,156			108,916
Total loans, net of unearned income	$	124,004		$	7,800		$	37,078		$	63,712		$	8,179,177		$	8,411,771
Aging as a % of Loan Balance:
Commercial and commercial real estate loans		1.9	%		—	%		0.5	%		0.9	%		96.7	%		100.0	%
Home equity loans		1.0			—			0.1			0.2			98.7			100.0
Residential real estate loans		1.2			0.1			0.1			1.0			97.5			100.0
Premium finance receivables — commercial		1.6			0.9			0.5			1.3			95.6			100.0
Premium finance receivables — life insurance		0.1			—			0.4			0.2			99.3			100.0
Indirect consumer loans		1.0			0.5			0.6			2.2			95.7			100.0
Consumer and other loans		0.6			0.1			0.5			0.5			98.4			100.0
Total loans, net of unearned income		1.5	%		0.1	%		0.4	%		0.8	%		97.2	%		100.0	%

				90+ days			60-89			30-59
As of September 30, 2009	Non-			and still			days past			days past
(Dollars in thousands)	Accrual			accruing			due			due			Current			Total Loans
Loan Balances:
Commercial and commercial real estate loans	$	166,726		$	23,377		$	31,957		$	80,069		$	4,733,730		$	5,035,859
Home equity loans		6,808			100			716			5,375			915,549			928,548
Residential real estate loans		4,077			1,172			476			1,595			273,831			281,151
Premium finance receivables — commercial		16,093			11,714			6,394			7,880			709,951			752,032
Premium finance receivables — life insurance		—			—			—			—			1,045,653			1,045,653
Indirect consumer loans		736			549			862			2,398			110,983			115,528
Consumer and other loans		282			25			556			304			115,319			116,486
Total loans, net of unearned income	$	194,722		$	36,937		$	40,961		$	97,621		$	7,905,016		$	8,275,257
Aging as a % of Loan Balance:
Commercial and commercial real estate loans		3.3	%		0.5	%		0.6	%		1.6	%		94.0	%		100.0	%
Home equity loans		0.7			—			0.1			0.6			98.6			100.0
Residential real estate loans		1.5			0.4			0.2			0.6			97.4			100.0
Premium finance receivables — commercial		2.1			1.6			0.9			1.0			94.4			100.0
Premium finance receivables — life insurance		—			—			—			—			100.0			100.0
Indirect consumer loans		0.6			0.5			0.7			2.1			96.1			100.0
Consumer and other loans		0.2			—			0.5			0.3			99.0			100.0
Total loans, net of unearned income		2.4	%		0.4	%		0.5	%		1.2	%		95.5	%		100.0	%

The amounts shown in the non-accrual and the 90+ days and still accruing columns represent the Company’s total reported non-performing loans balance. As of December 31, 2009, only $37 million of all loans, or 0.4%, were 60 to 89 days past due and only $64 million, or 0.8%, were 30 to 59 days (or one payment) past due.

The majority of the commercial and commercial real estate loans shown as 60 to 89 days and 30 to 59 days past due are on the Company’s internal problem loan reporting system. Loans on this system are closely monitored by management on a monthly basis.

The Company’s home equity and residential loan portfolios continue to exhibit very good delinquency ratios. Home equity loans at December 31, 2009 that are current with regard to the contractual terms of the loan agreement represent

28

98.7% of the total home equity portfolio. Residential real estate loans at December 31, 2009 that are current with regards to the contractual terms of the loan agreements comprise 97.5% of total residential real estate loans outstanding.

The ratio of non-performing commercial premium finance receivables fluctuates throughout the year due to the nature and timing of canceled account collections from insurance carriers. Due to the nature of collateral for commercial premium finance receivables it customarily takes 60-150 days to convert the collateral into cash collections. Accordingly, the level of non-performing commercial premium finance receivables is not necessarily indicative of the loss inherent in the portfolio. In the event of default, Wintrust has the power to cancel the insurance policy and collect the unearned portion of the premium from the insurance carrier. In the event of cancellation, the cash returned in payment of the unearned premium by the insurer should generally be sufficient to cover the receivable balance, the interest and other charges due. Due to notification requirements and processing time by most insurance carriers, many receivables will become delinquent beyond 90 days while the insurer is processing the return of the unearned premium. Management continues to accrue interest until maturity as the unearned premium is ordinarily sufficient to pay-off the outstanding balance and contractual interest due.

Non-performing Loans

The following table sets forth Wintrust’s non-performing loans at the dates indicated.

	December 31,			September 30,			June 30,			December 31,
(Dollars in thousands)	2009			2009			2009			2008
Loans past due greater than 90 days and still accruing:
Residential real estate and home equity	$	412		$	1,272		$	1,447		$	617
Commercial, consumer and other		656			23,402			7,860			14,750
Premium finance receivables — commercial		6,271			11,714			14,301			9,339
Premium finance receivables — life insurance		—			—			—			—
Indirect consumer loans		461			549			695			679
Total past due greater than 90 days and still accruing		7,800			36,937			24,303			25,385
Non-accrual loans:
Residential real estate and home equity		12,662			10,885			11,925			6,528
Commercial, consumer and other		97,765			167,008			184,960			91,814
Premium finance receivables — commercial		11,878			16,093			15,806			11,454
Premium finance receivables — life insurance		704			—			—			—
Indirect consumer loans		995			736			1,225			913
Total non-accrual		124,004			194,722			213,916			110,709
Total non-performing loans:
Residential real estate and home equity		13,074			12,157			13,372			7,145
Commercial, consumer and other		98,421			190,410			192,820			106,564
Premium finance receivables — commercial		18,149			27,807			30,107			20,793
Premium finance receivables — life insurance		704			—			—			—
Indirect consumer loans		1,456			1,285			1,920			1,592
Total non-performing loans	$	131,804		$	231,659		$	238,219		$	136,094
Total non-performing loans by category as a percent of its own respective category’s period-end balance:
Residential real estate and home equity		1.06	%		1.00	%		1.12	%		0.62	%
Commercial, consumer and other		1.91			3.70			3.71			2.16
Premium finance receivables — commercial		2.49			3.70			3.39			1.67
Premium finance receivables — life insurance		0.06			—			—			—
Indirect consumer loans		1.48			1.11			1.44			0.90
Total non-performing loans		1.57	%		2.80	%		3.14	%		1.79	%
Allowance for loan losses as a percentage of non-performing loans		74.56	%		41.05	%		35.73	%		51.26	%

29

Non-performing Residential Real Estate and Home Equity

The non-performing residential real estate and home equity loans totaled $13.1 million as of December 31, 2009. The balance increased $917,000 from September 30, 2009 and increased $5.9 million from December 31, 2008. The December 31, 2009 non-performing balance is comprised of $4.2 million of residential real estate (17 individual credits) and $8.9 million of home equity loans (19 individual credits). On average, this is approximately 2 non-performing residential real estate loans and home equity loans per chartered bank within the Company. The Company believes control and collection of these loans is very manageable. At this time, management believes reserves are adequate to absorb inherent losses that may occur upon the ultimate resolution of these credits.

Non-performing Commercial, Consumer and Other

The commercial, consumer and other non-performing loan category totaled $98.4 million as of December 31, 2009 compared to $190.4 million as of September 30, 2009 and $106.6 million as of December 31, 2008.

Management is pursuing the resolution of all credits in this category. At this time, management believes reserves are adequate to absorb inherent losses that may occur upon the ultimate resolution of these credits.

Non-performing Commercial Premium Finance Receivables

The table below presents the level of non-performing property and casualty premium finance receivables as of December 31, 2009 and 2008, and the amount of net charge-offs for the quarters then ended.

(Dollars in thousands)	December 31, 2009			December 31, 2008
Non-performing premium finance receivables—commercial	$	18,149		$	20,793
- as a percent of premium finance receivables—commercial outstanding		2.49	%		1.67	%
Net charge-offs of premium finance receivables—commercial	$	2,338		$	1,131
- annualized as a percent of average premium finance receivables—commercial		1.38	%		0.37	%

The non-performing and annualized charge-off ratios for 2009 represent only those receivables that remained on the Company’s books after the securitization in the third quarter of 2009. Including the activity of the securitization, non-performing property and casualty premium finance receivables would have been 1.63% and the annualized net charge offs as a percent of the average balance of property and casualty premium finance receivables would have been 0.73%.

Fluctuations in this category may occur due to timing and nature of account collections from insurance carriers. The Company’s underwriting standards, regardless of the condition of the economy, have remained consistent. We anticipate that net charge-offs and non-performing asset levels in the near term will continue to be at levels that are within acceptable operating ranges for this category of loans. Management is comfortable with administering the collections at this level of non-performing property and casualty premium finance receivables.

Non-performing Indirect Consumer Loans

Total non-performing indirect consumer loans were $1.5 million at December 31, 2009, compared to $1.3 million at September 30, 2009 and $1.6 million at December 31, 2008. The ratio of these non-performing loans to total indirect consumer loans was 1.48% at December 31, 2009 compared to 1.11% at September 30, 2009 and 0.90% at December 31, 2008. As noted in the Allowance for Credit Losses table, net charge-offs as a percent of total indirect consumer loans were 1.43% for the quarter ended December 31, 2009 compared to 0.98% in the same period in 2008. Given the 44% decline in outstanding balances in the indirect consumer loan portfolio since December 31, 2008, the 1.43% charge-off ratio represents only $383,000 of total net charge-offs in the fourth quarter of 2009.

At the beginning of the third quarter of 2008, the Company ceased the origination of indirect automobile loans. This niche business served the Company well over the past 12 years in helping de novo banks quickly, and profitably, grow into their physical structures. Competitive pricing pressures significantly reduced the long-term potential profitably of this niche business. Given the current economic environment and the retirement of the founder of this niche business, exiting the origination of this business was deemed to be in the best interest of the Company. The Company will continue to service its existing portfolio during the duration of the credits.

30

Restructured Loans

Restructured loans represent loans in which economic concessions have been granted to borrowers to better align the terms of the loan with their current ability to pay. During the fourth quarter of 2009, $32 million in loans had the terms modified. $31.7 million of the modified loans were in an accruing status at the time of the restructuring and remain accruing as of December 31, 2009. These actions helped financially distressed borrowers maintain their homes or businesses and kept these loans in an accruing status for the Company.

Other Real Estate Owned

The table below presents a summary of other real estate owned as of December 31, 2009 and shows the changes in the balance from September 30, 2009 for each property type:

							Residential
	Residential						Real Estate						Commercial						Total
	Real Estate						Development						Real Estate						Balance
(Dollars in thousands)	$			R			$			R			$			R			$			R
Balance at September 30, 2009	$	8,013			9		$	23,834			12		$	8,792			9		$	40,639			30
Transfers in at fair value less estimated costs to sell		7,713			13			31,282			14			29,652			28			68,627			55
Fair value adjustments		68			—			(932	)		—			27			—			(837	)		—
Resolved		(9,905	)		(16	)		(12,192	)		(8	)		(6,189	)		(11	)		(28,286	)		(35	)
Balance at December 31, 2009	$	5,889			6		$	41,992			18		$	32,282			26		$	80,163			50
Balance at December 31, 2008																			$	32,572

$ — balance

R — number of relationships

31

WINTRUST SUBSIDIARIES AND LOCATIONS

Wintrust is a financial holding company whose common stock is traded on the Nasdaq Global Select Market (Nasdaq: WTFC). Its 15 community bank subsidiaries are: Lake Forest Bank & Trust Company, Hinsdale Bank & Trust Company, North Shore Community Bank & Trust Company in Wilmette, Libertyville Bank & Trust Company, Barrington Bank & Trust Company, Crystal Lake Bank & Trust Company, Northbrook Bank & Trust Company, Advantage National Bank in Elk Grove Village, Village Bank & Trust in Arlington Heights, Beverly Bank & Trust Company in Chicago, Wheaton Bank & Trust Company, State Bank of The Lakes in Antioch, Old Plank Trail Community Bank, N.A. in New Lenox, St. Charles Bank & Trust Company and Town Bank in Hartland, Wisconsin. The banks also operate facilities in Illinois in Algonquin, Bloomingdale, Buffalo Grove, Cary, Chicago, Clarendon Hills, Deerfield, Downers Grove, Frankfort, Geneva, Glencoe, Glen Ellyn, Gurnee, Grayslake, Highland Park, Highwood, Hoffman Estates, Island Lake, Lake Bluff, Lake Villa, Lindenhurst, McHenry, Mokena, Mundelein, North Chicago, Northfield, Palatine, Prospect Heights, Ravinia, Riverside, Roselle, Sauganash, Skokie, Spring Grove, Vernon Hills, Wauconda, Western Springs, Willowbrook and Winnetka, and in Delafield, Elm Grove, Madison and Wales, Wisconsin.

Additionally, the Company operates various non-bank subsidiaries. First Insurance Funding Corporation, one of the largest insurance premium finance companies operating in the United States, serves commercial and life insurance loan customers throughout the country. Tricom, Inc. of Milwaukee provides high-yielding, short-term accounts receivable financing and value-added out-sourced administrative services, such as data processing of payrolls, billing and cash management services, to temporary staffing service clients located throughout the United States. Wintrust Mortgage Corporation (formerly known as WestAmerica Mortgage Company) engages primarily in the origination and purchase of residential mortgages for sale into the secondary market through origination offices located throughout the United States. Loans are also originated nationwide through relationships with wholesale and correspondent offices. Wayne Hummer Investments, LLC is a broker-dealer providing a full range of private client and brokerage services to clients and correspondent banks located primarily in the Midwest. Wayne Hummer Asset Management Company provides money management services and advisory services to individual accounts. Advanced Investment Partners, LLC is an investment management firm specializing in the active management of domestic equity investment strategies. Wayne Hummer Trust Company, a trust subsidiary, allows Wintrust to service customers’ trust and investment needs at each banking location. Wintrust Information Technology Services Company provides information technology support, item capture and statement preparation services to the Wintrust subsidiaries.

FORWARD-LOOKING STATEMENTS

This document contains forward-looking statements within the meaning of federal securities laws. Forward-looking information can be identified through the use of words such as “intend,” “plan,” “project,” “expect,” “anticipate,” “believe,” “estimate,” “contemplate,” “possible,” “point,” “will,” “may,” “should,” “would” and “could.” Forward-looking statements and information are not historical facts, are premised on many factors and assumptions, and represent only management’s expectations, estimates and projections regarding future events. Similarly, these statements are not guarantees of future performance and involve certain risks and uncertainties that are difficult to predict, which may include, but are not limited to, those listed below and the Risk Factors discussed under Item 1A of the Company’s 2008 Annual Report on Form 10-K and in any of the Company’s subsequent SEC filings. The Company intends such forward-looking statements to be covered by the safe harbor provisions 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. Such forward-looking statements may be deemed to include, among other things, statements relating to the Company’s future financial performance, the performance of its loan portfolio, the expected amount of future credit reserves and charge-offs, delinquency trends, growth plans, regulatory developments, securities that the Company may offer from time to time, and management’s long-term performance goals, as well as statements relating to the anticipated effects on financial condition and results of operations from expected developments or events, the Company’s business and growth strategies, including future acquisitions of banks, specialty finance or wealth management businesses, internal growth and plans to form additional de novo banks or branch offices. Actual results could differ materially from those addressed in the forward-looking statements as a result of numerous factors, including the following:

• negative economic conditions that adversely affect the economy, housing prices, the job market and other factors that may affect the Company’s liquidity and the performance of its loan portfolios, particularly in the markets in which it operates;

32

• the extent of defaults and losses on the Company’s loan portfolio, which may require further increases in its allowance for credit losses;

• estimates of fair value of certain of the Company’s assets and liabilities, which could change in value significantly from period to period;

• changes in the level and volatility of interest rates, the capital markets and other market indices that may affect, among other things, the Company’s liquidity and the value of its assets and liabilities;

• a decrease in the Company’s regulatory capital ratios, including as a result of further declines in the value of its loan portfolios, or otherwise;

• effects resulting from the Company’s participation in the Capital Purchase Program, including restrictions on dividends and executive compensation practices, as well as any future restrictions that may become applicable to the Company;

• legislative or regulatory changes, particularly changes in regulation of financial services companies and/or the products and services offered by financial services companies;

• increases in the Company’s FDIC insurance premiums, or the collection of special assessments by the FDIC;

• competitive pressures in the financial services business which may affect the pricing of the Company’s loan and deposit products as well as its services (including wealth management services);

• delinquencies or fraud with respect to the Company’s premium finance business;

• the Company’s ability to comply with covenants under its securitization facility and credit facility;

• credit downgrades among commercial and life insurance providers that could negatively affect the value of collateral securing the Company’s premium finance loans;

• any negative perception of the Company’s reputation or financial strength;

• the loss of customers as a result of technological changes allowing consumers to complete their financial transactions without the use of a bank;

• the ability of the Company to attract and retain senior management experienced in the banking and financial services industries;

• failure to identify and complete favorable acquisitions in the future, or unexpected difficulties or developments related to the integration of recent acquisitions, including with respect to any FDIC-assisted acquisitions;

• unexpected difficulties or unanticipated developments related to the Company’s strategy of de novo bank formations and openings, which typically require over 13 months of operations before becoming profitable due to the impact of organizational and overhead expenses, the startup phase of generating deposits and the time lag typically involved in redeploying deposits into attractively priced loans and other higher yielding earning assets;

• changes in accounting standards, rules and interpretations and the impact on the Corporation’s financial statements;

• significant litigation involving the Company; and

• the ability of the Company to receive dividends from its subsidiaries.

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 Wintrust. 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 undertakes no obligation to release revisions to these forward-looking statements or reflect events or circumstances after the date of this press release. Persons are advised, however, to consult further disclosures management makes on related subjects in its reports filed with the Securities and Exchange Commission and in its press releases.

CONFERENCE CALL, WEB CAST AND REPLAY

The Company will hold a conference call at 1:00 p.m. (CDT) Wednesday, January 27, 2010 regarding fourth quarter 2009 results. Individuals interested in listening should call (888) 684-1279 and enter Conference ID #3202747. A simultaneous audio-only web cast and replay of the conference call may be accessed via the Company’s web site at (http://www.wintrust.com), Investor News and Events, Presentations & Conference Calls. The text of the fourth quarter 2009 earnings press release will be available on the home page of the Company’s web site at (http://www.wintrust.com) and at the Investor News and Events, Press Releases link on its website.

#       #      #

33

WINTRUST FINANCIAL CORPORATION

Supplemental Financial Information

5 Quarter Trends

34

WINTRUST FINANCIAL CORPORATION — SUPPLEMENTAL FINANCIAL INFORMATION
Selected Financial Highlights — 5 Quarter Trends

(Dollars in thousands, except per share data)	Three Months Ended
Selected Financial Condition Data	December 31,			September 30,			June 30,			March 31,			December 31,
(at end of period):	2009			2009			2009			2009			2008
Total assets	$	12,215,620		$	12,136,021		$	11,359,536		$	10,818,941		$	10,658,326
Total loans		8,411,771			8,275,257			7,595,476			7,841,447			7,621,069
Total deposits		9,917,074			9,847,163			9,191,332			8,625,977			8,376,750
Junior subordinated debentures		249,493			249,493			249,493			249,502			249,515
Total shareholders’ equity		1,138,639			1,106,082			1,065,076			1,063,227			1,066,572
Selected Statements of Income Data:
Net interest income	$	86,934		$	87,663		$	72,497		$	64,782		$	62,745
Net revenue(1)		172,022			238,343			117,949			101,209			82,117
Income before taxes		43,102			54,587			10,041			9,774			2,727
Net income		28,167			31,995			6,549			6,358			1,955
Net income per common share — Basic		0.96			1.14			0.06			0.06			0.02
Net income per common share — Diluted		0.90			1.07			0.06			0.06			0.02
Selected Financial Ratios and Other Data:
Performance Ratios:
Net interest margin(2)		3.10	%		3.25	%		2.91	%		2.71	%		2.78	%
Non-interest income to average assets		2.77			5.07			1.65			1.38			0.77
Non-interest expense to average assets		2.94			3.11			3.06			2.91			2.57
Net overhead ratio(3)		0.17			(1.95	)		1.41			1.53			1.80
Efficiency ratio(2) (4)		52.54			38.69			72.02			74.10			75.22
Return on average assets		0.92			1.08			0.24			0.24			0.08
Return on average equity		10.97			13.79			0.79			0.71			0.22
Average total assets	$	12,189,096		$	11,797,520		$	11,037,468		$	10,724,966		$	10,060,206
Average total shareholders’ equity		1,126,594			1,070,095			1,067,395			1,061,654			846,982
Average loans to average deposits ratio		86.9	%		90.5	%		92.8	%		93.4	%		93.5	%
Common Share Data at end of period:
Market price per common share	$	30.79		$	27.96		$	16.08		$	12.30		$	20.57
Book value per common share	$	35.27		$	34.10		$	32.59		$	32.64		$	33.03
Common shares outstanding		24,206,819			24,103,068			23,979,804			23,910,983			23,756,674
Other Data at end of period:
Leverage ratio(5)		9.28	%		9.32	%		9.66	%		9.89	%		10.55	%
Tier 1 capital to risk-weighted assets(5)		11.20	%		10.80	%		10.94	%		11.15	%		11.63	%
Total capital to risk-weighted assets(5)		12.67	%		12.29	%		12.37	%		12.59	%		13.07	%
Allowance for credit losses(6)	$	101,831		$	98,225		$	86,699		$	75,834		$	71,352
Credit discounts on purchased loans(7)		37,323			36,195			—			—			—
Total credit-related reserves		139,154			134,420			86,699			75,834			71,352
Non-performing loans		131,804			231,659			238,219			175,866			136,094
Allowance for credit losses to total loans(6)		1.21	%		1.19	%		1.14	%		0.97	%		0.94	%
Total credit-related reserves to total loans(8)		1.65	%		1.62	%		1.14	%		0.97	%		0.94	%
Non-performing loans to total loans		1.57	%		2.80	%		3.14	%		2.24	%		1.79	%
Number of:
Bank subsidiaries		15			15			15			15			15
Non-bank subsidiaries		8			8			8			7			7
Banking offices		78			78			79			79			79

(1)	Net revenue includes net interest income and non-interest income.
(2)	See “Supplemental Financial Measures/Ratios” for additional information on this performance measure/ratio.
(3)	The net overhead ratio is calculated by netting total non-interest expense and total non-interest income, annualizing this amount, and dividing by that period’s total average assets. A lower ratio indicates a higher degree of efficiency.
(4)	The efficiency ratio is calculated by dividing total non-interest expense by tax-equivalent net revenue (less securities gains or losses). A lower ratio indicates more efficient revenue generation.
(5)	Capital ratios for current quarter-end are estimated.
(6)	The allowance for credit losses includes both the allowance for loan losses and the allowance for lending-related commitments.
(7)	Represents the credit discounts on purchased life insurance premium finance loans.
(8)	The sum of allowance for credit losses and credit discounts on purchased life insurance premium finance loans divided by total loans outstanding plus the credit discounts on purchased life insurance premium finance loans.

35

WINTRUST FINANCIAL CORPORATION — SUPPLEMENTAL FINANCIAL INFORMATION
Consolidated Statements of Condition — 5 Quarter Trends

	(Unaudited)			(Unaudited)			(Unaudited)			(Unaudited)
	December 31,			September 30,			June 30,			March 31,			December 31,
(In thousands)	2009			2009			2009			2009			2008
| | | | |
Assets
Cash and due from banks	$	135,133		$	128,898		$	122,382		$	122,207		$	219,794
Federal funds sold and securities purchased under resale agreements		23,483			22,863			41,450			98,454			226,110
Interest-bearing deposits with banks		1,025,663			1,168,362			655,759			266,512			123,009
Available-for-sale securities, at fair value		1,328,815			1,434,248			1,267,410			1,413,576			784,673
Trading account securities		33,774			29,204			22,973			13,815			4,399
Brokerage customer receivables		20,871			19,441			17,701			15,850			17,901
Loans held-for-sale		275,715			193,255			821,100			218,707			61,116
Loans, net of unearned income		8,411,771			8,275,257			7,595,476			7,841,447			7,621,069
Less: Allowance for loan losses		98,277			95,096			85,113			74,248			69,767
Net loans		8,313,494			8,180,161			7,510,363			7,767,199			7,551,302
Premises and equipment, net		350,345			352,890			350,447			349,245			349,875
Accrued interest receivable and other assets		416,678			315,806			260,182			263,145			240,664
Trade date securities receivable		—			—			—			—			788,565
Goodwill		278,025			276,525			276,525			276,310			276,310
Other intangible assets		13,624			14,368			13,244			13,921			14,608
Total assets	$	12,215,620		$	12,136,021		$	11,359,536		$	10,818,941		$	10,658,326
Liabilities and Shareholders’ Equity
Deposits:
Non-interest bearing	$	864,306		$	841,668		$	793,173		$	745,194		$	757,844
Interest bearing		9,052,768			9,005,495			8,398,159			7,880,783			7,618,906
Total deposits		9,917,074			9,847,163			9,191,332			8,625,977			8,376,750
Notes payable		1,000			1,000			1,000			1,000			1,000
Federal Home Loan Bank advances		430,987			433,983			435,980			435,981			435,981
Other borrowings		247,437			252,071			244,286			250,488			336,764
Subordinated notes		60,000			65,000			65,000			70,000			70,000
Junior subordinated debentures		249,493			249,493			249,493			249,502			249,515
Trade date securities payable		—			—			—			7,170			—
Accrued interest payable and other liabilities		170,990			181,229			107,369			115,596			121,744
Total liabilities		11,076,981			11,029,939			10,294,460			9,755,714			9,591,754
Shareholders’ equity:
Preferred stock		284,824			284,061			283,518			282,662			281,873
Common stock		27,079			26,965			26,835			26,766			26,611
Surplus		589,939			580,988			577,473			575,166			571,887
Treasury stock		(122,733	)		(122,437	)		(122,302	)		(122,302	)		(122,290	)
Retained earnings		366,152			342,873			317,713			315,855			318,793
Accumulated other comprehensive loss		(6,622	)		(6,368	)		(18,161	)		(14,920	)		(10,302	)
Total shareholders’ equity		1,138,639			1,106,082			1,065,076			1,063,227			1,066,572
Total liabilities and shareholders’ equity	$	12,215,620		$	12,136,021		$	11,359,536		$	10,818,941		$	10,658,326

36

WINTRUST FINANCIAL CORPORATION — SUPPLEMENTAL FINANCIAL INFORMATION
Consolidated Statements of Income (Unaudited) — 5 Quarter Trends

	Three Months Ended
	December 31,		September 30,			June 30,		March 31,			December 31,
(In thousands, except per share data)	2009		2009			2009		2009			2008
Interest income
Interest and fees on loans	$	122,140	$	126,448		$	110,302	$	106,887		$	107,598
Interest bearing deposits with banks		1,369		778			767		660			125
Federal funds sold and securities purchased under resale agreements		38		106			66		61			30
Securities		13,119		14,106			15,819		14,327			17,868
Trading account securities		20		7			55		24			33
Brokerage customer receivables		143		132			120		120			164
Total interest income		136,829		141,577			127,129		122,079			125,818
Interest expense
Interest on deposits		38,998		42,806			43,502		45,953			50,740
Interest on Federal Home Loan Bank advances		4,510		4,536			4,503		4,453			4,570
Interest on notes payable and other borrowings		1,663		1,779			1,752		1,870			2,387
Interest on subordinated notes		286		333			428		580			770
Interest on junior subordinated debentures		4,438		4,460			4,447		4,441			4,606
Total interest expense		49,895		53,914			54,632		57,297			63,073
Net interest income		86,934		87,663			72,497		64,782			62,745
Provision for credit losses		38,603		91,193			23,663		14,473			14,456
Net interest income after provision for credit losses		48,331		(3,530	)		48,834		50,309			48,289
Non-interest income
Wealth management		8,047		7,501			6,883		5,926			6,705
Mortgage banking		16,495		13,204			22,596		16,232			3,138
Service charges on deposit accounts		3,437		3,447			3,183		2,970			2,684
Gain on sales of commercial premium finance receivables		4,429		3,629			196		322			361
Gains (losses) on available-for-sale securities, net		642		(412	)		1,540		(2,038	)		(3,618	)
Gain on bargain purchase		42,951		113,062			—		—			—
Other		9,087		10,249			11,054		13,015			10,102
Total non-interest income		85,088		150,680			45,452		36,427			19,372
Non-interest expense
Salaries and employee benefits		47,955		48,088			46,015		44,820			35,616
Equipment		4,097		4,069			4,015		3,938			4,190
Occupancy, net		6,124		5,884			5,608		6,190			5,947
Data processing		3,404		3,226			3,216		3,136			3,007
Advertising and marketing		1,366		1,488			1,420		1,095			1,642
Professional fees		3,556		4,089			2,871		2,883			2,334
Amortization of other intangible assets		744		677			676		687			781
Other		23,071		25,042			20,424		14,213			11,417
Total non-interest expense		90,317		92,563			84,245		76,962			64,934
Income before income taxes		43,102		54,587			10,041		9,774			2,727
Income tax expense		14,935		22,592			3,492		3,416			772
Net income	$	28,167	$	31,995		$	6,549	$	6,358		$	1,955
Preferred stock dividends and discount accretion		4,888		4,668			5,000		5,000			1,532
Net income applicable to common shares	$	23,279	$	27,327		$	1,549	$	1,358		$	423
Net income per common share — Basic	$	0.96	$	1.14		$	0.06	$	0.06		$	0.02
Net income per common share — Diluted	$	0.90	$	1.07		$	0.06	$	0.06		$	0.02
Cash dividends declared per common share	$	—	$	0.09		$	—	$	0.18		$	—
Weighted average common shares outstanding		24,166		24,052			23,964		23,855			23,726
Dilutive potential common shares		2,845		2,493			300		221			447
Average common shares and dilutive common shares		27,011		26,545			24,264		24,076			24 173

37

WINTRUST FINANCIAL CORPORATION — SUPPLEMENTAL FINANCIAL INFORMATION

Period End Loan Balances — 5 Quarter Trends

	December 31,			September 30,			June 30,			March 31,			December 31,
(Dollars in thousands)	2009			2009			2009			2009			2008
Balance:
Commercial and commercial real estate	$	5,039,906		$	5,035,859		$	5,083,917		$	4,933,355		$	4,778,664
Home equity		930,482			928,548			912,399			920,412			896,438
Residential real estate		306,296			281,151			279,345			280,808			262,908
Premium finance receivables — commercial(2)		730,144			752,032			888,115			1,287,261			1,243,858
Premium finance receivables — life insurance		1,197,893			1,045,653			182,399			130,895			102,728
Indirect consumer loans(1)		98,134			115,528			133,808			154,257			175,955
Other Loans		108,916			116,486			115,493			134,459			160,518
Total loans, net of unearned income	$	8,411,771		$	8,275,257		$	7,595,476		$	7,841,447		$	7,621,069
Mix:
Commercial and commercial real estate		60	%		61	%		67	%		63	%		63	%
Home equity		11			11			12			12			12
Residential real estate		4			4			3			4			3
Premium finance receivables — commercial(2)		9			9			12			16			16
Premium finance receivables — life insurance		14			13			2			2			2
Indirect consumer loans(1)		1			1			2			2			2
Other loans		1			1			2			1			2
Total loans, net of unearned income		100	%		100	%		100	%		100	%		100	%

(1)	Includes autos, boats, snowmobiles and other indirect consumer loans.
(2)	Excludes $520 million of property and casualty premium finance receivables reclassified to held-for-sale in the second quarter of 2009.

WINTRUST FINANCIAL CORPORATION — SUPPLEMENTAL FINANCIAL INFORMATION

Period End Deposit Balances — 5 Quarter Trends

	December 31,			September 30,			June 30,			March 31,			December 31,
(Dollars in thousands)	2009			2009			2009			2009			2008
Balance:
Non-interest bearing	$	864,306		$	841,668		$	793,173		$	745,194		$	757,844
NOW		1,415,856			1,245,689			1,072,255			1,064,663			1,040,105
Wealth management deposits(1)		971,113			935,740			919,968			833,291			716,178
Money market		1,534,632			1,468,228			1,379,164			1,313,157			1,124,068
Savings		561,916			513,239			461,377			406,376			337,808
Time certificates of deposit		4,569,251			4,842,599			4,565,395			4,263,296			4,400,747
Total deposits	$	9,917,074		$	9,847,163		$	9,191,332		$	8,625,977		$	8,376,750
Mix:
Non-interest bearing		9	%		9	%		9	%		9	%		9	%
NOW		14			13			11			12			13
Wealth management deposits(1)		10			9			10			10			7
Money market		15			15			15			15			13
Savings		6			5			5			5			4
Time certificates of deposit		46			49			50			49			54
Total deposits		100	%		100	%		100	%		100	%		100	%

(1) Represents deposit balances at the Company’s subsidiary banks from brokerage customers of Wayne Hummer Investments, the trust and asset management customers of Wayne Hummer Trust Company and brokerage customers from unaffiliated companies which have been placed into deposit accounts of the Banks.

38

WINTRUST FINANCIAL CORPORATION — SUPPLEMENTAL FINANCIAL INFORMATION

Quarterly Average Balances — 5 Quarter Trends

	Three Months Ended
	December 31,			September 30,			June 30,			March 31,			December 31,
(Dollars in thousands)	2009			2009			2009			2009			2008
Liquidity management assets	$	2,569,584		$	1,851,179		$	1,851,179		$	1,839,161		$	1,607,707
Other earning assets		26,167			22,694			22,694			22,128			21,630
Loans, net of unearned income		8,604,007			8,212,572			8,212,572			7,924,849			7,455,418
Total earning assets	$	11,199,757		$	10,086,445		$	10,086,445		$	9,786,138		$	9,084,755
Allowance for loan losses		(97,269	)		(72,990	)		(72,990	)		(72,044	)		(67,342	)
Cash and due from banks		124,219			118,402			118,402			107,550			127,700
Other assets		962,389			905,611			905,611			903,322			915,093
Total assets	$	12,189,096		$	11,037,468		$	11,037,468		$	10,724,966		$	10,060,206
Interest-bearing deposits	$	9,016,863		$	8,097,096		$	8,097,096		$	7,747,879		$	7,271,505
Federal Home Loan Bank advances		432,028			435,983			435,983			435,982			439,432
Notes payable and other borrowings		234,754			249,123			249,123			301,894			379,914
Subordinated notes		63,261			66,648			66,648			70,000			73,364
Junior subordinated debentures		249,493			249,494			249,494			249,506			249,520
Total interest-bearing liabilities	$	9,996,399		$	9,098,344		$	9,098,344		$	8,805,261		$	8,413,735
Non-interest bearing deposits		886,988			754,479			754,479			733,911			705,616
Other liabilities		179,115			117,250			117,250			124,140			93,873
Equity		1,126,594			1,067,395			1,067,395			1,061,654			846,982
Total liabilities and shareholders’ equity	$	12,189,096		$	11,037,468		$	11,037,468		$	10,724,966		$	10,060,206

WINTRUST FINANCIAL CORPORATION — SUPPLEMENTAL FINANCIAL INFORMATION

Net Interest Margin — 5 Quarter Trends

	Three Months Ended
	December 31,			September 30,			June 30,			March 31,			December 31,
Yield earned on:	2009			2009			2009			2009			2008
Liquidity management assets		2.31	%		2.94	%		3.71	%		3.42	%		4.57	%
Other earning assets		2.59			2.36			3.27			2.85			3.94
Loans, net of unearned income		5.64			5.79			5.39			5.48			5.75
Total earning assets		4.87	%		5.24	%		5.08	%		5.08	%		5.54	%
Rate paid on:
Interest-bearing deposits		1.72	%		1.93	%		2.15	%		2.41	%		2.78	%
Federal Home Loan Bank advances		4.14			4.14			4.14			4.14			4.14
Notes payable and other borrowings		2.81			2.88			2.82			2.51			2.50
Subordinated notes		1.77			2.01			2.54			3.31			4.11
Junior subordinated debentures		6.96			6.99			7.05			7.12			7.22
Total interest-bearing liabilities		1.98	%		2.18	%		2.41	%		2.64	%		2.98	%
Rate Spread		2.89	%		3.06	%		2.67	%		2.44	%		2.56	%
Net Free Funds Contribution		0.21			0.19			0.24			0.27			0.22
Net Interest Margin		3.10	%		3.25	%		2.91	%		2.71	%		2.78	%

39

WINTRUST FINANCIAL CORPORATION — SUPPLEMENTAL FINANCIAL INFORMATION

Net Interest Margin (Including Call Option Income) — 5 Quarter Trends

	Three Months Ended
	December 31,			September 30,			June 30,			March 31,			December 31,
	2009			2009			2009			2009			2008
Net Interest Income	$	87,448		$	88,178		$	73,067		$	65,402		$	63,340
Call Option Income		—			—			—			1,998			7,438
Net Interest Income Including Call Option Income	$	87,448		$	88,178		$	73,067		$	67,400		$	70,778
Yield on Earning Assets		4.87	%		5.24	%		5.08	%		5.08	%		5.54	%
Rate on Interest-bearing Liabilities		1.98			2.18			2.41			2.64			2.98
Rate Spread		2.89	%		3.06	%		2.67	%		2.44	%		2.56	%
Net Free Funds Contribution		0.21			0.19			0.24			0.27			0.22
Net Interest Margin		3.10	%		3.25	%		2.91	%		2.71	%		2.78	%
Call Option Income		—			—			—			0.08			0.33
Net Interest Margin including Call Option Income		3.10	%		3.25	%		2.91	%		2.79	%		3.11	%

WINTRUST FINANCIAL CORPORATION — SUPPLEMENTAL FINANCIAL INFORMATION

Net Interest Margin (Including Call Option Income) — YTD Trends

	Years Ended
	December 31,
	2009			2008			2007			2006			2005
Net Interest Income	$	314,096		$	247,054		$	264,777		$	250,507		$	218,086
Call Option Income		1,998			29,024			2,628			3,157			11,434
Net Interest Income Including Call Option Income	$	316,094		$	276,078		$	267,405		$	253,664		$	229,520
Yield on Earning Assets		5.07	%		5.88	%		7.21	%		6.91	%		5.92	%
Rate on Interest-bearing Liabilities		2.29			3.31			4.39			4.11			3.00
Rate Spread		2.78	%		2.57	%		2.82	%		2.80	%		2.92	%
Net Free Funds Contribution		0.23			0.24			0.29			0.30			0.24
Net Interest Margin		3.01	%		2.81	%		3.11	%		3.10	%		3.16	%
Call Option Income		0.02			0.33			0.03			0.04			0.17
Net Interest Margin including Call Option Income		3.03	%		3.14	%		3.14	%		3.14	%		3.33	%

40

WINTRUST FINANCIAL CORPORATION — SUPPLEMENTAL FINANCIAL INFORMATION

Non-Interest Income — 5 Quarter Trends

	Three Months Ended
	December 31,			September 30,			June 30,		March 31,			December 31,
(Dollars in thousands)	2009			2009			2009		2009			2008
Brokerage	$	5,034		$	4,593		$	4,280	$	3,819		$	4,310
Trust and asset management		3,013			2,908			2,603		2,107			2,395
Total wealth management		8,047			7,501			6,883		5,926			6,705
Mortgage banking		16,495			13,204			22,596		16,232			3,138
Service charges on deposit accounts		3,437			3,447			3,183		2,970			2,684
Gain on sale of property and casualty premium		4,429	��		3,629			196		322			361
(Losses) gains on available-for-sale securities, net		642			(412	)		1,540		(2,038	)		(3,618	)
Gain on bargain purchase		42,951			113,062			—		—			—
Other:
Fees from covered call options		—			—			—		1,998			7,438
Bank Owned Life Insurance		642			552			565		286			(319	)
Trading income		4,437			6,236			8,274		8,744			(105	)
Administrative services		511			527			454		482			670
Miscellaneous		3,497			2,934			1,761		1,505			2,418
Total other income		9,087			10,249			11,054		13,015			10,102
Total non-interest income	$	85,088		$	150,680		$	45,452	$	36,427		$	19,372

WINTRUST FINANCIAL CORPORATION — SUPPLEMENTAL FINANCIAL INFORMATION

Non-Interest Expense — 5 Quarter Trends

	Three Months Ended
	December 31,		September 30,		June 30,		March 31,		December 31,
(Dollars in thousands)	2009		2009		2009		2009		2008
Salaries and employee benefits	$	47,955	$	48,088	$	46,015	$	44,820	$	35,616
Equipment		4,097		4,069		4,015		3,938		4,190
Occupancy, net		6,124		5,884		5,608		6,190		5,947
Data processing		3,404		3,226		3,216		3,136		3,007
Advertising and marketing		1,366		1,488		1,420		1,095		1,642
Professional fees		3,556		4,089		2,871		2,883		2,334
Amortization of other intangibles		744		677		676		687		781
Other:
Commissions — 3rd party brokers		757		843		791		704		802
Postage		1,367		1,139		1,146		1,180		1,012
Stationery and supplies		859		769		793		768		757
FDIC Insurance		4,731		4,334		9,121		3,013		1,681
OREO expenses, net		5,293		10,243		1,072		2,356		641
Miscellaneous		10,064		7,714		7,501		6,192		6,524
Total other expense		23,071		25,042		20,424		14,213		11,417
Total non-interest expense	$	90,317	$	92,563	$	84,245	$	76,962	$	64,934

41

WINTRUST FINANCIAL CORPORATION — SUPPLEMENTAL FINANCIAL INFORMATION

Allowance for Credit Losses — 5 Quarter Trends

	Three Months Ended
	December 31,			September 30,			June 30,			March 31,			December 31,
(Dollars in thousands)	2009			2009			2009			2009			2008
Balance at beginning of period	$	95,096		$	85,113		$	74,248		$	69,767		$	66,327
Provision for credit losses		38,603			91,193			23,663			14,473			14,456
Reclassification to allowance for lending-related commitments		(494	)		(1,543	)		—			—			(1,093	)
Charge-offs:
Commercial and commercial real estate loans		31,788			74,613			9,846			7,890			7,539
Home equity loans		1,572			1,727			795			511			231
Residential real estate loans		385			422			108			152			627
Premium finance receivables — commercial		2,532			2,478			1,792			1,351			1,275
Premium finance receivables — life insurance		—			—			—			—			—
Indirect consumer loans		427			588			473			361			501
Consumer and other loans		148			244			130			121			157
Total charge-offs		36,852			80,072			13,144			10,386			10,330
Recoveries:
Commercial and commercial real estate loans		789			139			107			208			211
Home equity loans		812			1			1			1			1
Residential real estate loans		—			—			—			—			—
Premium finance receivables — commercial		194			161			155			141			144
Premium finance receivables — life insurance		—			—			—			—			—
Indirect consumer loans		44			62			44			29			38
Consumer and other loans		85			42			39			15			13
Total recoveries		1,924			405			346			394			407
Net charge-offs		(34,928	)		(79,667	)		(12,798	)		(9,992	)		(9,923	)
Allowance for loan losses at end of period	$	98,277		$	95,096		$	85,113		$	74,248		$	69,767
Allowance for lending-related commitments at end of period	$	3,554		$	3,129		$	1,586		$	1,586		$	1,586
Allowance for credit losses at end of period	$	101,831		$	98,225		$	86,699		$	75,834		$	71,353
Credit-related discounts on purchased loans		37,323			36,195			—			—			—
Total credit reserves	$	139,154		$	134,420		$	86,699		$	75,834		$	71,535
Annualized net charge-offs by category as a percentage of its own respective category’s average:
Commercial and commercial real estate loans		2.42	%		5.83	%		0.78	%		0.65	%		0.62	%
Home equity loans		0.32			0.75			0.35			0.23			0.11
Residential real estate loans		0.28			0.33			0.09			0.14			0.79
Premium finance receivables — commercial		1.38			0.74			0.48			0.37			0.37
Premium finance receivables — life insurance		—			—			—			—			—
Indirect consumer loans		1.43			1.67			1.20			0.81			0.98
Consumer and other loans		0.22			0.71			0.25			0.27			0.35
Total loans, net of unearned income		1.61	%		3.65	%		0.63	%		0.51	%		0.53	%
Net charge-offs as a percentage of the provision for loan losses		90.48	%		87.36	%		54.08	%		69.04	%		68.64	%
Loans at period-end	$	8,411,771		$	8,275,257		$	7,595,476		$	7,841,447		$	7,621,068
Allowance for loan losses as a percentage of loans at period-end		1.17	%		1.15	%		1.12	%		0.95	%		0.92	%
Allowance for credit losses as a percentage of loans at period-end		1.21	%		1.19	%		1.14	%		0.97	%		0.94	%
Total credit reserves as a percentage of loans (net of discounts) at period-end		1.65	%		1.62	%		1.14	%		0.97	%		0.94	%

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WINTRUST FINANCIAL CORPORATION — SUPPLEMENTAL FINANCIAL INFORMATION

Non-Performing Loans — 5 Quarter Trends

	December 31,			September 30,			June 30,			March 31,			December 31,
(Dollars in thousands)	2009			2009			2009			2009			2008
Loans past due greater than 90 days and still accruing:
Residential real estate and home equity	$	412		$	1,272		$	1,447		$	726		$	617
Commercial, consumer and other		656			23,402			7,860			4,958			14,750
Premium finance receivables — commercial		6,271			11,714			14,301			9,722			9,339
Premium finance receivables — life insurance		—			—			—			—			—
Indirect consumer loans		461			549			695			1,076			679
Total past due greater than 90 days and still accruing		7,800			36,937			24,303			16,482			25,385
Non-accrual loans:
Residential real estate and home equity		12,662			10,885			11,925			9,209			6,528
Commercial, consumer and other		97,765			167,008			184,960			136,397			91,814
Premium finance receivables — commercial		11,878			16,093			15,806			12,694			11,454
Premium finance receivables — life insurance		704			—			—			—			—
Indirect consumer loans		995			736			1,225			1,084			913
Total non-accrual		124,004			194,722			213,916			159,384			110,709
Total non-performing loans:
Residential real estate and home equity		13,074			12,157			13,372			9,935			7,145
Commercial, consumer and other		98,421			190,410			192,820			141,355			106,564
Premium finance receivables — commercial		18,149			27,807			30,107			22,416			20,793
Premium finance receivables — life insurance		704			—			—			—			—
Indirect consumer loans		1,456			1,285			1,920			2,160			1,592
Total non-performing loans	$	131,804		$	231,659		$	238,219		$	175,866		$	136,094
Total non-performing loans by category as a percent of its own respective category’s period-end balance:
Residential real estate and home equity		1.06	%		1.00	%		1.12	%		0.83	%		0.62	%
Commercial, consumer and other		1.91			3.70			3.71			2.79			2.16
Premium finance receivables — commercial		2.49			3.70			3.39			1.74			1.67
Premium finance receivables — life insurance		0.06			—			—			—			—
Indirect consumer loans		1.48			1.11			1.44			1.40			0.90
Total non-performing loans		1.57	%		2.80	%		3.14	%		2.24	%		1.79	%
Allowance for loan losses as a percentage of non-performing loans		74.56	%		41.05	%		35.73	%		42.22	%		51.26	%

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