{"schema_version":"secwatch.filing_event.v1","accession":"0000947484-25-000041","form_type":"8-K","ticker":"ACGL","cik":"0000947484","company_name":"ARCH CAPITAL GROUP LTD.","filed_at":"2025-04-29T23:59:59+00:00","discovered_at":"2026-05-14T18:02:51.911432+00:00","generated_at":"2026-05-23T04:36:08.991018+00:00","sec_items":["2.02","9.01"],"event_type":"earnings","sentiment":"negative","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Arch Capital Q1 net income falls to $564M from $1.1B on $547M catastrophe losses","bullets":["Net income available to common shareholders $564M ($1.48/sh) vs $1.1B ($2.92/sh) in Q1 2024.","After-tax operating income $587M ($1.54/sh), down from $933M ($2.45/sh) YoY.","Pre-tax catastrophe losses of $547M, primarily from California wildfires; combined ratio 90.1% (vs 78.8%).","Gross premiums written up 8.9% to $6.5B; book value per share $55.15, +3.8% sequentially.","Share repurchases of ~$196M in Q1; CEO cites more competitive market but expects to stand out."],"urls":{"canonical":"https://secwatch.observer/filing/0000947484-25-000041","json":"https://secwatch.observer/filing/0000947484-25-000041.json","markdown":"https://secwatch.observer/filing/0000947484-25-000041.md","text":"https://secwatch.observer/filing/0000947484-25-000041.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/947484/000094748425000041/0000947484-25-000041-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/947484/000094748425000041/acgl-20250429.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-23T04:36:08.991018+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"}