secwatch.observer — SEC 8-K summary
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Issuer:     ARCH CAPITAL GROUP LTD. (ACGL)
CIK:        0000947484
Form:       8-K
Filed at:   2026-04-28T23:59:59+00:00
Accession:  0000947484-26-000051
Event type: earnings
Sentiment:  positive
Materiality: 0.85
Item codes: 2.02, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Arch Capital Q1 net income $1.0B ($2.88 EPS); operating ROE 15.4%
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- Net income $1.0B vs $564M in Q1 2025; diluted EPS $2.88 vs $1.48.
- After-tax operating income $901M ($2.50 per share); annualized operating ROE 15.4%.
- Combined ratio 81.7% (82.3% ex-cat & prior-year development); prior-year reserve favorable development of $200M.
- Share repurchases of $783M during Q1; book value per share $66.19 (+1.7% from Dec 2025).
- Gross premiums written $6.4B (flat YoY); net premiums earned $4.0B (-4.8% YoY).

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/947484/000094748426000051/0000947484-26-000051-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/947484/000094748426000051/acgl-20260428.htm
  HTML page:      https://secwatch.observer/filing/0000947484-26-000051

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