Alterra Capital to Hold Second Quarter Earnings Call

June 28, 2010

HAMILTON, Bermuda, Jun 28, 2010 (BUSINESS WIRE) --

Alterra Capital Holdings Limited (NASDAQ: ALTE; BSX: ALTE.BH) today announced that it will release Q2 2010 financial results after the market close on Tuesday, August 3, 2010. The following morning Alterra will hold an investment community conference call on Wednesday, August 4, 2010, at 10:00 a.m. EDT to discuss these results.

President and Chief Executive Officer W. Marston (Marty) Becker and Executive Vice President and Chief Financial Officer Joe Roberts will represent Alterra on the call, the details of which are as follows:

If you wish to pre-register for this event, please go to the following website:

http://www.theconferencingservice.com/prereg/key.process?key=PCVVC6YAX

In addition, interested persons may listen to the earnings call via Alterra's website: www.alterracap.com.

If you are unable to participate in the "live" call, a replay will be available from approximately 1:00 p.m. EDT on August 4, 2010 until September 4, 2010. To listen to the replay, US-based callers may dial 1-888-286-8010 international callers may use 1-617-801-6888; the access code for the replay is 42167467.

About Alterra Capital Holdings Limited

Alterra Capital Holdings Limited is a global enterprise dedicated to providing diversified specialty insurance and reinsurance products to corporations, public entities, property and casualty insurers, and life and health insurers. Alterra was formed on May 12, 2010 by the merger of Max Capital Group Ltd. and Harbor Point Limited.

Cautionary Note Regarding Forward-Looking Statements

This release may include forward-looking statements that reflect Alterra's current views with respect to future events and financial performance. These forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from those suggested by such statements. For further information regarding cautionary statements and factors affecting Alterra's future results, please refer to the most recent Annual Report on Form 10-K, Quarterly Reports on Form 10-Q filed subsequent to the Annual Report and other documents filed by Alterra with the SEC. Alterra undertakes no obligation to update or revise publicly any forward-looking statement whether as a result of new information, future developments or otherwise.

SOURCE: Alterra Capital Holdings Limited

Alterra Capital Holdings Limited
Susan Spivak Bernstein, 1-212-898-6640
Senior Vice President
susan.spivak@alterra-bm.com
or
Kekst and Company
Peter Hill, 1-212-521-4800
peter-hill@kekst.com