First Business Financial Services: Set to join Russell Microcap Index

MADISON, Wis., June 28, 2013 (GLOBE NEWSWIRE) — First Business
Financial Services, Inc. (Nasdaq:FBIZ) expects to join the Russell
Microcap(R) Index when Russell Investments reconstitutes its
comprehensive set of U.S. and global equity indexes after the market
close on June 28, 2013 according to a preliminary list of additions
posted on www.russell.com/indexes.

Membership in the Russell Microcap Index, which remains in place for
one year, means automatic inclusion in the appropriate growth and value
style indexes. Russell determines membership for its equity indexes
primarily by objective, market-capitalization rankings and style
attributes.

“We are very pleased to join the Russell Microcap Index because of the
increased market exposure it brings,” said Corey A. Chambas, President
and Chief Executive Officer. “Over the past two years we have increased
our capital markets exposure meaningfully through careful planning and
execution. Today we are excited for an even broader base of investors
to gain exposure to our recent earnings momentum, growth prospects and
impressive shareholder returns.”

Russell indexes are widely used by investment managers and
institutional investors for index funds and as benchmarks for both
passive and active investment strategies. Russell calculates more than
700,000 benchmarks daily covering approximately 98 percent of the
investable market globally, 80 countries and more than 10,000
securities. Approximately $4.1 trillion in assets are benchmarked to
the Russell Indexes.

Annual reconstitution of Russell Indexes captures the 4,000 largest
U.S. stocks as of the end of May, ranking them by total market
capitalization to create the Russell 3000 Index and Russell Microcap
Index. These investment tools originated from Russell’s multi-manager
investment business in the early 1980s when the company saw the need
for a more objective, market-driven set of benchmarks in order to
evaluate outside investment managers.

Total returns data for the Russell Microcap and other Russell Indexes
is available at
http://www.russell.com/indexes/data/US_Equity/Russell_US_Index_returns.
asp.

About Russell:

Russell Investments (Russell) is a global asset manager and one of only
a few firms that offers actively managed multi-asset portfolios and
services that include advice, investments and implementation. Russell
stands with institutional investors, financial advisors and individuals
working with their advisors-using the firm’s core capabilities that
extend across capital market insights, manager research, portfolio
construction, portfolio implementation and indexes to help each achieve
their desired investment outcomes.

Russell has more than $173 billion in assets under management (as of
3/31/2013) and works with over 2,500 institutional clients, independent
distribution partners and individual investors globally. As a
consultant to some of the largest pools of capital in the world,
Russell has $2.6 trillion in assets under advisement (as of
12/31/2012). It has four decades of experience researching and
selecting investment managers and meets annually with more than 2,200
managers around the world. Russell traded more than $1.4 trillion in
2012 through its implementation services business.

About First Business Financial Services, Inc.

First Business Financial Services (Nasdaq:FBIZ) is a $1.2 billion
Wisconsin-based bank holding company that specializes in focused
financial solutions for businesses, key executives, and high net worth
individuals through its operating companies. It is the second largest
Wisconsin-based commercial bank holding company listed on NASDAQ or the
New York Stock Exchange. Its companies include: First Business Bank –
Madison; First Business Bank – Milwaukee; First Business Bank –
Northeast; First Business Trust & Investments; First Business Equipment
Finance, LLC; and First Business Capital Corp. For additional
information, visit www.firstbusiness.com or call (608) 238-8008.

CONTACT: James F. Ropella
Senior Vice President and CFO
First Business Financial Services, Inc.
608-232-5970
[email protected]