{"schema_version":"secwatch.filing_event.v1","accession":"0000947484-25-000008","form_type":"8-K","ticker":"ACGL","cik":"0000947484","company_name":"ARCH CAPITAL GROUP LTD.","filed_at":"2025-02-10T23:59:59+00:00","discovered_at":"2026-05-14T18:03:06.911272+00:00","generated_at":"2026-05-27T00:45:18.797544+00:00","sec_items":["2.02","9.01"],"event_type":"earnings","sentiment":"negative","materiality_score":0.8,"calibrated_materiality_score":0.8,"confidence":"high","headline":"Arch Capital Q4 net income $925M ($2.42 EPS); cat losses $393M; estimates $450-550M from California wildfires","bullets":["Net income available to common shareholders $925M ($2.42 diluted EPS), down from $2.3B ($6.12) in Q4 2023.","Pre-tax cat losses of $393M from Hurricanes Milton and Helene; combined ratio 85.0% vs 78.9% a year ago.","After-tax operating income $866M ($2.26 per share) vs $945M ($2.49) prior year; operating ROE 16.7%.","CEO estimates California wildfire losses for Arch between $450M and $550M; insured market loss $35-45B.","Book value per share $53.11, down 6.8% from Sept 30 due to $5.00 special dividend paid Dec 4."],"urls":{"canonical":"https://secwatch.observer/filing/0000947484-25-000008","json":"https://secwatch.observer/filing/0000947484-25-000008.json","markdown":"https://secwatch.observer/filing/0000947484-25-000008.md","text":"https://secwatch.observer/filing/0000947484-25-000008.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/947484/000094748425000008/0000947484-25-000008-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/947484/000094748425000008/acgl-20250210.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-27T00:45:18.797544+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"}