{"schema_version":"secwatch.filing_event.v1","accession":"0000776867-25-000013","form_type":"8-K","ticker":"WTM","cik":"0000776867","company_name":"WHITE MOUNTAINS INSURANCE GROUP LTD","filed_at":"2025-08-07T23:59:59+00:00","discovered_at":"2026-05-14T18:02:46.353686+00:00","generated_at":"2026-05-17T18:39:03.898612+00:00","sec_items":["2.02","9.01"],"event_type":"earnings","sentiment":"positive","materiality_score":0.7,"calibrated_materiality_score":0.7,"confidence":"high","headline":"White Mountains Q2 BVPS +3% to $1,804; Ark combined ratio 84%, Bamboo record quarter","bullets":["BVPS $1,804 (+3% for Q2 and H1); comprehensive income $124M vs -$55M prior year.","Ark combined ratio 84% (improved from 87%); GWP $815M (+17% YoY).","Bamboo MGA pre-tax $15M, MGA adj. EBITDA $26M; managed premiums $191M (+59% YoY).","HG Global GWP $19M (record Q2, +66% YoY); Kudu adj. EBITDA $16M, ROE 8%.","Completed BroadStreet deal, announced Distinguished acquisition; undeployed capital ~$300M."],"urls":{"canonical":"https://secwatch.observer/filing/0000776867-25-000013","json":"https://secwatch.observer/filing/0000776867-25-000013.json","markdown":"https://secwatch.observer/filing/0000776867-25-000013.md","text":"https://secwatch.observer/filing/0000776867-25-000013.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/776867/000077686725000013/0000776867-25-000013-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/776867/000077686725000013/wtm-20250807.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T18:39:03.898612+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}