White Mountains reported a decrease in book value per share and adjusted book value per share in Q4 2024, primarily due to mark-to-market declines in its investment portfolio, including MediaAlpha. However, the company saw growth in gross written premiums at Ark and Bamboo, and Kudu's portfolio surpassed $1 billion. The company had undeployed capital of approximately $700 million.
ABVPS decreased by 3% in Q4, mainly due to investment portfolio declines, including MediaAlpha.
Ark produced a 77% combined ratio and $264 million in gross written premiums, up 14% year-over-year.
Bamboo had a strong quarter with managed premiums and adjusted EBITDA up significantly year-over-year.
MediaAlpha's share price declined 38% in the quarter, resulting in a $122 million mark-to-market loss.
White Mountains anticipates continued growth in 2025, particularly for Bamboo, although the immediate focus is on supporting policyholders impacted by the wildfires in Los Angeles. Ark sees opportunities for profitable growth in 2025 despite a moderating rate environment.