Allied World Schedules Second Quarter 2011 Earnings Announcement and Conference Call

By Allied World Assurance Company Holdings Ag, PRNE
Sunday, July 10, 2011

ZUG, Switzerland, July 11, 2011 -

Allied World Assurance Company Holdings, AG (NYSE: AWH) today
announced that it will release its financial results for the second
quarter ended June 30, 2011, after the close of market
on Wednesday, August 3, 2011.

Scott Carmilani, President and Chief Executive Officer,
and Joan Dillard, Chief Financial Officer, will host a
conference call on Thursday, August 4, 2011 at 9:00
am (Eastern Time) to discuss the second quarter 2011 financial
results.  This call will include a question and answer

The conference call can be accessed by dialing +1-877-317-6701
(U.S. and Canada callers) or +1-412-317-6701
(international callers) and entering the passcode 5885208
approximately ten minutes prior to the call.  A live webcast
of the call will be available online at  href="">  A replay
of the call will be available through Thursday, August 18,
2011 by dialing +1-877-344-7529 (U.S.
and Canada callers) or +1-412-317-0088 (international
callers) and entering the passcode 10001916.  In addition, the
webcast will remain available online through Thursday, August
18, 2011 at  href="">

About Allied World Assurance

Allied World Assurance Company Holdings, AG, through its
subsidiaries, is a global provider of innovative property, casualty
and specialty insurance and reinsurance solutions, offering
superior client service through a global network of offices and
branches.  All of Allied World’s rated insurance and
reinsurance subsidiaries are rated A by A.M. Best Company, A by
Standard & Poor’s and A2 by Moody’s, and our Lloyd’s Syndicate
2232 is rated A+ by Standard & Poor’s and Fitch.  Please
visit for further information on Allied World.

Cautionary Statement Regarding
Forward-Looking Statements

Any forward-looking statements made in this press release
reflect our current views with respect to future events and
financial performance and are made pursuant to the safe harbor
provisions of the Private Securities Litigation Reform Act of
1995.  Such statements involve risks and uncertainties, which
may cause actual results to differ materially from those set forth
in these statements.  For example, our forward-looking
statements could be affected by pricing and policy term trends;
increased competition; the impact of acts of terrorism and acts of
war; greater frequency or severity of unpredictable catastrophic
events; negative rating agency actions; the adequacy of our loss
reserves; the company or its subsidiaries becoming subject to
significant income taxes in the United States or elsewhere; changes
in regulations or tax laws; changes in the availability, cost or
quality of reinsurance or retrocessional coverage; adverse general
economic conditions; and judicial, legislative, political and other
governmental developments, as well as management’s response to
these factors, and other factors identified in our filings with the
U.S. Securities and Exchange Commission. You are cautioned not to
place undue reliance on these forward-looking statements, which
speak only as of the date on which they are made. We are under no
obligation (and expressly disclaim any such obligation) to update
or revise any forward-looking statement that may be made from time
to time, whether as a result of new information, future
developments or otherwise.

Faye Cook, Vice President, Marketing & Communications, +1-441-278-5406, faye.cook at, or Keith J. Lennox, Investor Relations Officer, +1-646-794-0750, keith.lennox at

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