Wintrust Financial Corporation

Form 10-K, Exhibit 12.2

Computation of Ratio of Earnings to Fixed Charges and Preferred Stock Dividends

The following table presents the calculation of the ratio of earnings to fixed charges and preferred stock dividends for the last five years.

(dollars in thousands)

	September 30,			September 30,			September 30,			September 30,			September 30,			September 30,
			Years ended December 31,
			2011			2010			2009			2008			2007
Income before income taxes	A		$	128,033		$	100,807		$	117,504		$	30,641		$	83,824
Interest expense:
Interest on deposits			$	87,938		$	123,779		$	171,259		$	219,437		$	294,914
Interest on other borrowings	C			56,478			53,492			44,479			50,719			55,093
Total interest expense	B		$	144,416		$	177,271		$	215,738		$	270,156		$	350,007
Dividends on preferred shares (1)	D		$	6,592		$	44,810		$	27,009		$	3,377		$	—
Ratio of earnings to fixed charges and preferred stock dividends:
Including deposit interest	(A+B	) / (B+D)		1.80	x		1.25	x		1.37	x		1.10	x		1.24	x
Excluding deposit interest	(A+C	) / (C+D)		2.93	x		1.57	x		2.27	x		1.50	x		2.52	x

(1) The dividends on preferred shares were increased to amounts representing the pretax earnings that would be required to cover such dividend requirements.