Longleaf Partners Small-Cap Fund, managed by Southeastern Asset Management, saw a 2.03% return in the third quarter of 2025, compared to the Russell 3000’s 8.18% and the Russell 2000’s 12.39%. For more details on the fund’s top picks, check out its top five holdings.

White Mountains Insurance Group, Ltd. (NYSE:WTM) had a one-month return of 5.43% and a 2.04% gain over the last 52 weeks. On December 1, 2025, its stock closed at $2,024.89 per share, with a market capitalization of $5.17 billion.

In its investor letter, Longleaf Partners Small-Cap Fund praised White Mountains Insurance Group, Ltd. (NYSE:WTM) for its value-per-share focus and recent profitable sale of Bamboo.

26 hedge fund portfolios held White Mountains Insurance Group, Ltd. (NYSE:WTM) at the end of the third quarter, up from 20 in the previous quarter. While the stock has potential, certain AI stocks may offer greater upside with less downside risk.

The London Company Small Cap Strategy shared their views on White Mountains Insurance Group, Ltd. (NYSE:WTM). Check out more investor letters from hedge funds and leading investors for additional insights.

Read more at Yahoo Finance: Longleaf Partners Small-Cap Fund’s Investment Theses for White Mountains (WTM)