UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 22, 2011

First Business Financial Services, Inc.
(Exact name of registrant as specified in its charter)


Wisconsin	1-34095	39-1576570
(State or other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)


401 Charmany Drive, Madison, Wisconsin		53719
(Address of Principal Executive Offices)		(Zip Code)

Registrant’s telephone number, including area code: (608) 238-8008

(Former name or former address if changed since last report.)

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

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

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

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

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

Item 8.01. Other Events.

On June 22, 2011, First Business Financial Services, Inc. (the “Company”) issued a press release stating that the Company will join the Russell Microcap® Index when Russell Investments reconstitutes its family of U.S. indexes on June 24, 2011. A copy of the press release is furnished as Exhibit 99.1 and is incorporated by reference herein.

Item 9.01. Financial Statements and Exhibits

(d) Exhibits

Exhibit
Number

99.1 Press Release of First Business Financial Services, Inc., dated June 22, 2011.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: June 22, 2011

FIRST BUSINESS FINANCIAL SERVICES, INC.

By:  /s/ Barbara M. Conley
        Barbara M. Conley
        Senior Vice President and General Counsel

FIRST BUSINESS FINANCIAL SERVICES, INC.

Exhibit Index to Current Report on Form 8-K

Exhibit
Number

99.1 Press Release of First Business Financial Services, Inc., dated June 22, 2011.

First Business Financial Services, Inc. 8-K