---
schema_version: "secwatch.filing_event.v1"
accession: "0000947484-24-000091"
form_type: "8-K"
ticker: "ACGL"
cik: "0000947484"
company_name: "ARCH CAPITAL GROUP LTD."
filed_at: "2024-07-30T23:59:59+00:00"
generated_at: "2026-05-31T15:35:18.733313+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Arch Capital Q2 net income $1.3B, EPS $3.30, compared to $661M, $1.75 a year ago

## Summary
- Net income available to common shareholders of $1.3B ($3.30/share) vs $661M ($1.75/share) in Q2 2023.
- After-tax operating income $981M ($2.57/share) vs $726M ($1.92/share) in prior-year quarter.
- Gross premiums written rose 11.1% to $5.38B; net premiums earned up 20.2% to $3.57B.
- Combined ratio improved to 78.7% from 79.8% a year ago; ex-cat and prior-year development 76.7% vs 79.7%.
- Book value per share $52.75 at June 30, 2024, a 6.9% increase from March 31, 2024.

## SEC filing metadata
- accession: 0000947484-24-000091
- form_type: 8-K
- ticker: ACGL
- cik: 0000947484
- company_name: ARCH CAPITAL GROUP LTD.
- filed_at: 2024-07-30T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/947484/000094748424000091/0000947484-24-000091-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/947484/000094748424000091/acgl-20240730.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000947484-24-000091
- JSON: https://secwatch.observer/filing/0000947484-24-000091.json
- Plain text: https://secwatch.observer/filing/0000947484-24-000091.txt

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