For a reconciliation of Adjusted Book Value per Share to GAAP Book Value per
White Mountains is a Bermuda-domiciled financial services holding company with
business interests in property and casualty insurance and reinsurance.
Our goal is to provide you with the financial information you need, right at your
fingertips. This site offers extensive information about White Mountains, its
subsidiaries and affiliated companies. The navigational area at the top of the
gives you fast and easy access to all the information on the site. You may also
the specific information you need by choosing from the Quick Link drop-down list