WTM

In the past six months, White Mountains Insurance Group Ltd. experienced a net loss in Q1 2026 due to unrealized investment losses from its stake in MediaAlpha, though operating results for Ark, Kudu, and HG Global were solid. White Mountains Partners acquired Hawkeye Electric and BaseSix Systems, representing a combined equity investment of approximately $132 million. White Mountains invested $125 million in Bishop Street Underwriters. The company completed the acquisition of an additional 50% stake in Distinguished Programs Group LLC for approximately $220 million. WTM's stock reached an all-time high of $2,333.00 on April 16, 2026, with a 52-week range between $1,648.00 and $2,333.00.