---
schema_version: "secwatch.filing_event.v1"
accession: "0000947484-24-000007"
form_type: "8-K"
ticker: "ACGL"
cik: "0000947484"
company_name: "ARCH CAPITAL GROUP LTD."
filed_at: "2024-02-14T23:59:59+00:00"
generated_at: "2026-06-06T02:58:55.963391+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Arch Capital Q4 net income $2.3B ($6.12 EPS); operating income $945M; book value up 21.5%

## Summary
- Net income $2.3B ($6.12 diluted EPS) vs $849M ($2.26) in Q4 2022; includes $1.18B deferred tax asset from Bermuda corporate income tax.
- After-tax operating income $945M ($2.49 per share) vs $806M ($2.14) YoY, a 17.3% increase.
- Combined ratio excluding catastrophic activity and prior year development improved to 78.9% from 82.0%.
- Book value per common share $46.94, up 21.5% from $38.63 at Sept 30, 2023.
- Gross premiums written $4.25B, up 12% YoY; CEO bullish on 2024 market conditions.

## SEC filing metadata
- accession: 0000947484-24-000007
- form_type: 8-K
- ticker: ACGL
- cik: 0000947484
- company_name: ARCH CAPITAL GROUP LTD.
- filed_at: 2024-02-14T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/947484/000094748424000007/0000947484-24-000007-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/947484/000094748424000007/acgl-20240214.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000947484-24-000007
- JSON: https://secwatch.observer/filing/0000947484-24-000007.json
- Plain text: https://secwatch.observer/filing/0000947484-24-000007.txt

## Key facts
- Earnings Releases
  ARCH CAPITAL GROUP LTD. reported the quarter ended December 31, 2023 results: net income $2.3 billion, EPS $6.12 per share.
  - Period: the quarter ended December 31, 2023
  - Net income: $2.3 billion
  - EPS: $6.12 per share
  - Result: reported results
  source text: Arch Capital Group Ltd. issued a press release reporting its earnings and the availability of its financial supplement for the quarter ended December 31, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/947484/000094748424000007/0000947484-24-000007-index.htm

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