Arch Capital Group Ltd. to Report 2009 First Quarter Results on April 28, 2009.

HAMILTON, Bermuda -- Arch Capital Group Ltd. [NASDAQ: ACGL] announced that it expects to release its 2009 first quarter results after the close of regular stock market hours on Tuesday, April 28, 2009. The Company will hold a conference call for investors and analysts at 11:00 a.m. Eastern Time on Wednesday, April 29, 2009.

A live webcast of this call will be available via the Investor Relations - Events & Presentations section of the Company's website at http://www.archcapgroup.bm. A telephone replay of the conference call also will be available beginning on April 29 at 1:00 p.m. Eastern Time until May 6, 2009 at midnight Eastern Time. To access the replay, domestic callers should dial 888-286-8010 (passcode 14362334), and international callers should dial 617-801-6888 (passcode 14362334).

Arch Capital Group Ltd., a Bermuda-based company with over $3.8 billion in capital at December 31, 2008, provides insurance and reinsurance on a worldwide basis through its wholly owned subsidiaries.

Cautionary Note Regarding Forward-Looking Statements 

The Private Securities Litigation Reform Act of 1995 provides a "safe harbor" for forwardlooking statements. This release or any other written or oral statements made by or on behalf of Arch Capital Group Ltd. and its subsidiaries may include forwardlooking statements, which reflect our current views with respect to future events and financial performance. All statements other than statements of historical fact included in or incorporated by reference in this release are forwardlooking statements.

Forwardlooking statements can generally be identified by the use of forwardlooking terminology such as "may," "will," "expect," "intend," "estimate," "anticipate," "believe" or "continue" or their negative or variations or similar terminology. Forwardlooking statements involve our current assessment of risks and uncertainties. Actual events and results may differ materially from those expressed or implied in these statements. A non-exclusive list of the important factors that could cause actual results to differ materially from those in such forward-looking statements includes the following: adverse general economic and market conditions; increased competition; pricing and policy term trends; fluctuations in the actions of rating agencies and our ability to maintain and improve our ratings; investment performance; the loss of key personnel; the adequacy of our loss reserves, severity and/or frequency of losses, greater than expected loss ratios and adverse development on claim and/or claim expense liabilities; greater frequency or severity of unpredictable natural and man-made catastrophic events; the impact of acts of terrorism and acts of war; changes in regulations and/or tax laws in the United States or elsewhere; our ability to successfully integrate, establish and maintain operating procedures as well as integrate the businesses we have acquired or may acquire into the existing operations; changes in accounting principles or policies; material differences between actual and expected assessments for guaranty funds and mandatory pooling arrangements; availability and cost to us of reinsurance to manage our gross and net exposures; the failure of others to meet their obligations to us; and other factors identified in our filings with the U.S. Securities and Exchange Commission.

The foregoing review of important factors should not be construed as exhaustive and should be read in conjunction with other cautionary statements that are included herein or elsewhere. All subsequent written and oral forwardlooking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by these cautionary statements. We undertake no obligation to publicly update or revise any forwardlooking statement, whether as a result of new information, future events or otherwise.