{"schema_version":"secwatch.filing_event.v1","accession":"0000947484-23-000005","form_type":"8-K","ticker":"ACGL","cik":"0000947484","company_name":"ARCH CAPITAL GROUP LTD.","filed_at":"2023-02-13T23:59:59+00:00","discovered_at":"2026-05-14T18:03:48.683876+00:00","generated_at":"2026-06-19T17:16:10.270281+00:00","sec_items":["2.02","9.01"],"event_type":"earnings","sentiment":"positive","materiality_score":0.8,"calibrated_materiality_score":0.8,"confidence":"high","headline":"Arch Capital Q4 net income $849.5M ($2.26/sh), combined ratio 73.5%; BVPS up 9.9%","bullets":["Net income available to common shareholders $849.5M ($2.26 diluted EPS) vs $613.1M ($1.58) in Q4 2021, up 38.5%.","After-tax operating income $805.9M ($2.14/sh) vs $493.3M ($1.27) in prior-year quarter.","Combined ratio improved to 73.5% from 77.6% YoY; underwriting income $734.3M, +55.7%.","Book value per share $32.62, up 9.9% from Q3 2022; annualized ROE 29.5%.","Gross premiums written $3.795B, +32.6%; net premiums written $3.035B, +49.2%."],"urls":{"canonical":"https://secwatch.observer/filing/0000947484-23-000005","json":"https://secwatch.observer/filing/0000947484-23-000005.json","markdown":"https://secwatch.observer/filing/0000947484-23-000005.md","text":"https://secwatch.observer/filing/0000947484-23-000005.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/947484/000094748423000005/0000947484-23-000005-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/947484/000094748423000005/acgl-20230213.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-19T17:16:10.270281+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":[{"claim_id":"34b63878c1a28575b927b28fd942aa45e8ef68fd","claim":"ARCH CAPITAL GROUP LTD. reported the quarter ended December 31, 2022 results: revenue Net premiums earned 2,760,919, net income $849.5 million, EPS $2.26 per share.","evidence_excerpt":"Three Months Ended December 31, 2022 2021 % Change Gross premiums written $ 3,795,262 $ 2,861,575 32.6 Net premiums written 3,034,636 2,034,427 49.2 Net premiums earned 2,760,919 2,083,630 32.5 Underwriting income 734,264 471,611 55.7 Underwriting Ratios % Point Change Loss ratio 45.0 % 47.8 % (2.8) Underwriting expense ratio 28.5 % 29.8 % (1.3) Combined","evidence_source":"SEC 8-K Item 2.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/947484/000094748423000005/0000947484-23-000005-index.htm","confidence":0.9,"family_label":"Earnings Releases","details":[{"label":"Period","value":"the quarter ended December 31, 2022"},{"label":"Revenue","value":"Net premiums earned 2,760,919"},{"label":"Net income","value":"$849.5 million"},{"label":"EPS","value":"$2.26 per share"},{"label":"Result","value":"reported results"}],"fact_type":"earnings_release"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}