White Mountains Stock Rockets +10% on $1.75B Bamboo Deal – What Investors Need to Know
Figure: White Mountains’ share price spiked on Oct. 3, 2025 after announcing the $1.75B Bamboo sale reuters.com investing.com. Stock Surge on Oct. 3, 2025 White Mountains saw one of its biggest single-day moves in years on Oct. 3, 2025. After closing the prior day near $1,665, WTM stock jumped nearly 11% intraday reuters.com, settling around $1,841 by market close (a gain of +10.62% from the previous close). This surge was driven by the surprise announcement that morning: WTM signed an agreement to sell most of its Bamboo homeowners insurance business to private equity firm CVC reuters.com investing.com. Investors reacted strongly because Bamboo had been