White Mountains Insurance Group, Ltd.

White Mountains Insurance Group, Ltd. (WTM) is a Bermuda‑based diversified insurance holding company that combines underwriting operations, reinsurance and run‑off businesses with an investment portfolio. Investors should know it generates returns from insurance float and investment income while managing underwriting risks; its results can be affected by catastrophe losses, reserve development and capital market movements. With a market capitalisation of about $4.88bn, White Mountains tends to be evaluated on metrics such as combined ratio, book value per share and investment performance rather than short‑term price moves. The group’s capital allocation — including dividends, share repurchases and reinvestment — is important to returns and can change with economic and underwriting cycles. This summary is general, educational information only and not personal financial advice. Insurance stocks can be volatile; prospective investors should review the company’s filings, consider how it fits their portfolio and, if needed, consult a regulated financial adviser.