---
schema_version: "secwatch.filing_event.v1"
accession: "0000947484-23-000072"
form_type: "8-K"
ticker: "ACGL"
cik: "0000947484"
company_name: "ARCH CAPITAL GROUP LTD."
filed_at: "2023-07-26T23:59:59+00:00"
generated_at: "2026-06-13T02:41:23.649594+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.78
calibrated_materiality_score: 0.78
confidence: "high"
source: SEC EDGAR
---

# Arch Capital Q2 net income $661M ($1.75 EPS); operating EPS $1.92, up 43% YoY

## Summary
- Net income of $661M ($1.75 diluted EPS) vs $394M ($1.04) YoY, up 68%.
- After-tax operating income of $726M ($1.92 per share) vs $506M ($1.34) YoY, up 43%.
- Gross premiums written $4,845M (+25.2% YoY); net premiums written $3,428M (+27.7%).
- Combined ratio 79.8% (including $119M catastrophe losses); ex-cat and prior year development 79.7%, improved from 80.8% YoY.
- Book value per share $37.04, up 4.8% from Q1 2023.

## SEC filing metadata
- accession: 0000947484-23-000072
- form_type: 8-K
- ticker: ACGL
- cik: 0000947484
- company_name: ARCH CAPITAL GROUP LTD.
- filed_at: 2023-07-26T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.78
- calibrated_materiality_score: 0.78
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/947484/000094748423000072/0000947484-23-000072-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/947484/000094748423000072/acgl-20230726.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000947484-23-000072
- JSON: https://secwatch.observer/filing/0000947484-23-000072.json
- Plain text: https://secwatch.observer/filing/0000947484-23-000072.txt

## Key facts
- Earnings Releases
  ARCH CAPITAL GROUP LTD. reported the quarter ended June 30, 2023 results: net income $661 million, EPS $1.75 per share.
  - Period: the quarter ended June 30, 2023
  - Net income: $661 million
  - EPS: $1.75 per share
  - Result: reported results
  source text: On July 26, 2023, Arch Capital Group Ltd. issued a press release reporting its earnings and the availability of its financial supplement for the quarter ended June 30, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/947484/000094748423000072/0000947484-23-000072-index.htm

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