---
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"
generated_at: "2026-06-19T17:16:10.270281+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Arch Capital Q4 net income $849.5M ($2.26/sh), combined ratio 73.5%; BVPS up 9.9%

## Summary
- 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%.

## SEC filing metadata
- 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
- event_type: earnings
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 9.01
- 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

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000947484-23-000005
- JSON: https://secwatch.observer/filing/0000947484-23-000005.json
- Plain text: https://secwatch.observer/filing/0000947484-23-000005.txt

## Key facts
- Earnings Releases
  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.
  - Period: the quarter ended December 31, 2022
  - Revenue: Net premiums earned 2,760,919
  - Net income: $849.5 million
  - EPS: $2.26 per share
  - Result: reported results
  source text: 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_url: https://www.sec.gov/Archives/edgar/data/947484/000094748423000005/0000947484-23-000005-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.