White Mountains Insurance Group conducts its business in the following areas: municipal bond insurance, property and casualty insurance and reinsurance, specialty insurance distribution, capital solutions for asset management firms, and other operations. Co.'s municipal bond insurance business is conducted through its subsidiary HG Global Ltd. and its reinsurance subsidiary HG Re Ltd. Co.'s property and casualty insurance and reinsurance business is conducted through its subsidiary Ark Insurance Holdings Limited. Co.'s specialty insurance distribution business is conducted through its subsidiary NSM Insurance HoldCo, LLC. Co. also provides capital solutions for asset management firms.