---
schema_version: "secwatch.filing_event.v1"
accession: "0000947484-25-000059"
form_type: "8-K"
ticker: "ACGL"
cik: "0000947484"
company_name: "ARCH CAPITAL GROUP LTD."
filed_at: "2025-07-29T23:59:59+00:00"
generated_at: "2026-05-18T00:02:44.918391+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Arch Capital Q2 net income $1.2B ($3.23 EPS); combined ratio 81.2%

## Summary
- Net income $1.2B ($3.23 diluted EPS) vs $1.3B ($3.30) year ago; operating income $979M ($2.58).
- Combined ratio 81.2% (vs 78.7% a year ago); ex-cats & prior year dev: 80.9% (vs 76.7%).
- Gross premiums written $6.2B (+15.1% YoY); net premiums earned $4.3B (+21.7%).
- Book value per share $59.17, up 7.3% from Q1; share repurchases $163M.
- Pre-tax catastrophe losses $154M; favorable prior year reserve development $139M.

## SEC filing metadata
- accession: 0000947484-25-000059
- form_type: 8-K
- ticker: ACGL
- cik: 0000947484
- company_name: ARCH CAPITAL GROUP LTD.
- filed_at: 2025-07-29T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/947484/000094748425000059/0000947484-25-000059-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/947484/000094748425000059/acgl-20250729.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000947484-25-000059
- JSON: https://secwatch.observer/filing/0000947484-25-000059.json
- Plain text: https://secwatch.observer/filing/0000947484-25-000059.txt

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