Cardinal Financial Corporation Added to Russell Indexes.

TYSONS CORNER, Va. -- Cardinal Financial Corporation (NASDAQ:CFNL) today announced that it was added to the U.S. broad-market Russell 3000[R] Index after the equity markets closed on June 27 as Russell Investments reconstituted its comprehensive family of global indexes. Membership in the Russell 3000, which remains in place for one year, means Cardinal is also included in the small-cap Russell 2000[R] Index as well as the appropriate growth and value indexes.

"We believe the addition of Cardinal Financial Corporation in the Russell indexes will provide an overall benefit to our stockholders by increasing our visibility in the investment community and potentially broadening our stockholder base," said Bernard Clineburg, Chairman and Chief Executive Officer. "Being named as a Russell 3000[R] company recognizes our value and growth potential, as well as our strong market position among businesses and consumers in the greater Washington, DC region."

The Russell 3000 also serves as the U.S. component to the Russell Global Index, which Russell launched last year.

Russell indexes are widely used by investment managers and institutional investors for index funds and as benchmarks for both passive and active investment strategies. An industry-leading $4.4 trillion in assets currently are benchmarked to them. 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.

About Cardinal Financial Corporation: Cardinal Financial Corporation, a financial holding company headquartered in Tysons Corner, Virginia with assets of $1.692 billion at March 31, 2008, serves the Washington Metropolitan region through its wholly owned subsidiary, Cardinal Bank. Cardinal also operates George Mason Mortgage, LLC; Cardinal Trust and Investment Services; and Wilson/Bennett Capital Management, Inc. The Company's stock is traded on NASDAQ (CFNL). For additional information, please visit our Web site at www.cardinalbank.com or call 703.584.3400.

About Russell: Russell Investments aims to improve financial security for people by providing strategic advice, world-class implementation, state-of-the-art performance benchmarks, and a range of institutional-quality investment products. With more than $213 billion in assets under management, Russell serves individual, institutional and advisor clients in more than 40 countries. Russell provides access to some of the world's best money managers. It helps investors put this access to work in corporate defined benefit and defined contribution plans, and in the life savings of individual investors. Headquartered in Tacoma, Wash., Russell has principal offices in Amsterdam, Auckland, Hong Kong, Johannesburg, London, Melbourne, New York, Paris, San Francisco, Seoul, Singapore, Sydney, Tokyo and Toronto. For more information on Russell indexes, go to www.russell.com.