secwatch.observer — SEC 8-K summary
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Issuer:     WHITE MOUNTAINS INSURANCE GROUP LTD (WTM)
CIK:        0000776867
Form:       8-K
Filed at:   2023-11-06T23:59:59+00:00
Accession:  0000776867-23-000016
Event type: earnings
Sentiment:  neutral
Materiality: 0.80
Item codes: 2.02, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

White Mountains Q3 ABVPS up 1% to $1,588; acquires Bamboo, launches WM Partners
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- Book value per share $1,542, adjusted $1,588, both up 1% in Q3 and 6% YTD including dividends.
- BAM gross written premiums & MSC $36M in Q3 vs $46M a year ago; Ark combined ratio 81% (87% year ago).
- WM Outrigger Re combined ratio 44%, pre-tax income $37M; Kudu annualized adjusted EBITDA grew to $47M.
- MediaAlpha share price decline reduced ABVPS by 1%; carrying value $189M vs $236M at June 30.
- Announced acquisition of Bamboo and launch of WM Partners; undeployed capital roughly $400M.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/776867/000077686723000016/0000776867-23-000016-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/776867/000077686723000016/wtm-20231106.htm
  HTML page:      https://secwatch.observer/filing/0000776867-23-000016

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer