For a reconciliation of Adjusted Book Value per Share to GAAP Book Value per
Share, click here.
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 page gives you fast and easy access to all the information on the site. You may also find the specific information you need by choosing from the Quick Link drop-down list to the right.