Every 10-Q that White Mountains Insurance Group Ltd. (WTM) has filed with the SEC in the last 24 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 10-Q covers the quarterly report filed between annual reports, so if you follow WTM and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full WTM filings page.
White Mountains Insurance Group, Ltd. reported Q2 2026 consolidated revenues of $844.6 million, up from $689.2 million a year earlier, with growth driven by higher investment gains and contributions from Kudu, WTM Partners and Distinguished. Net income attributable to common shareholders rose to $199.5 million from $122.9 million, and diluted EPS increased to $80.58 from $47.75.
For the first six months of 2026, net income attributable to common shareholders was $172.3 million compared to $156.8 million in 2025. Net investment income reached $70.9 million for the quarter, alongside $209.0 million of net realized and unrealized investment gains. As of June 30, 2026, total assets were $13,766.7 million and total equity $6,120.5 million, supported by an investment portfolio totaling $8,136.0 million.
White Mountains Insurance Group reported total revenues of $517.8 million for the three months ended March 31, 2026 and a net loss attributable to common shareholders of $27.2 million, or $(12.59) per basic and diluted share, compared with earnings of $33.9 million a year earlier.
Results were heavily affected by investment performance, including $65.2 million of net realized and unrealized losses on its MediaAlpha stake and total net realized and unrealized investment losses of $54.4 million versus gains of $50.0 million in 2025. Core insurance operations at Ark/WM Outrigger generated net earned premiums of $373.8 million with $18.3 million of favorable prior-year reserve development, while cash flow from operations improved to $30.5 million from a use of $40.2 million.
White Mountains Insurance Group, Ltd. reported net income attributable to common shareholders of $113.8 million for the quarter and $270.6 million for the first nine months of 2025, down from $179.0 million and $360.8 million a year earlier. Total revenues rose to $864.2 million for the quarter and $2.13 billion year-to-date, reflecting strong contributions from P&C insurance, asset management and distribution businesses.
The company agreed to sell a controlling interest in Bamboo at a $1.75 billion enterprise value, expecting about $840 million in net cash and retaining a $250 million stake. It also acquired controlling interests in Distinguished, a specialty insurance distribution platform, and Enterprise Solutions, expanding non-insurance operations. Investment portfolios remained sizable, with $7.06 billion in total investments and growing Level 3 holdings tied mainly to Kudu participation contracts.