ARCH CAPITAL GROUP LTD. (ACGL) Stock
ACGL has an Alpha Score of 74 out of 100 (moderate), computed on Nov 6, 2026 from 3 of 4 sub-scores. 5 members of Congress disclosed 6 trades in ACGL since 2020: 4 purchases and 2 sales, most recently Alan Armstrong (purchase, Mar 27, 2026). Company insiders reported 0 open-market buys and 1 sale on SEC Form 4 in the 90 days to Nov 6, 2026. Its trailing P/E ratio is 7.8 and its net margin 25.4% (key statistics as of Nov 4, 2026).
What is ACGL's Alpha Score?
How it works →Alpha Score of 74 reflects strong overall profile with strong momentum, strong value, strong quality. Based on 3 of 4 signals – score is capped at 90 until remaining data ingests.
Computed from 3 of 4 sub-scores; a sub-score is left out when its inputs are missing, and the composite is capped accordingly.
Computed Nov 6, 2026
A rules-based research rating, not a recommendation to buy or sell.
Which members of Congress traded ARCH CAPITAL GROUP LTD. (ACGL)?
Most recent: Alan Armstrong (purchase, Mar 27, 2026); records start Dec 15, 2020.
| Politician | Trade date | Type | Amount |
|---|---|---|---|
| Alan Armstrong R-OK · Senate | 2026-03-27 | purchase | $1k – $15k |
| Jefferson Shreve R-IN · House | 2025-05-12 | sale | $15k – $50k |
| Rob Bresnahan R-PA · House | 2025-02-25 | sale | $1k – $15k |
| Jefferson Shreve R-IN · House | 2025-02-24 | purchase | $15k – $50k |
| Dean Phillips D-MN · House | 2021-01-08 | purchase | $1k – $15k |
| Cindy Axne D-IA · House | 2020-12-15 | purchase | $1k – $15k |
From STOCK Act periodic transaction reports. House filings as of Nov 5, 2026. Senate records here end Oct 21, 2026; later Senate trades are not included.
See all ACGL political trades →Are ARCH CAPITAL GROUP LTD. insiders buying or selling?
SEC Form 4 filings| Date | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| Aug 18, 26 | Morin Francois | CFO and Treasurer | SELL | 11.0K | $1.1M |
| Mar 11, 26 | Posner Brian S | Director | SELL | 3.0K | $51K |
| Mar 10, 26 | Gansberg David | President, Arch Capital Group | SELL | 5.9K | $569K |
| Mar 10, 26 | Papadopoulo Nicolas | CEO | SELL | 21.9K | $2.1M |
SEC Form 4 filings as of Nov 6, 2026
See cluster-buy signals across all tickers →What are ACGL's key statistics?
Key statistics as of Nov 4, 2026
How does ACGL's valuation compare with the Financials sector?
| Metric | ACGL | Financials median | Companies in median |
|---|---|---|---|
| P/E ratio | 7.8 | 12.8 | 229 |
| Net margin | 25.41% | 20.69% | 216 |
| Return on equity | 19.52% | 12.32% | 243 |
Medians over the Financials stocks whose key statistics were refreshed in the last 35 days (newest Nov 8, 2026). P/E excludes loss-making companies.
ACGL price chart
Powered by TradingViewWhat does ARCH CAPITAL GROUP LTD. do?
Arch Capital Group Ltd. is a Bermuda-based company specializing in insurance, reinsurance, and mortgage insurance on a worldwide basis, with operations spanning the United States, Canada, Europe, Australia, and the United Kingdom. Its three core underwriting segments include insurance, which delivers specialty risk solutions across diverse industries; reinsurance, covering property catastrophe, property, liability, marine, aviation and space, trade credit and surety, agriculture, accident, life and health, and political risk; and mortgage, offering risk management and financing products to the mortgage insurance sector through platforms in the U.S., Europe, and Bermuda. Founded in 2001 and headquartered in Bermuda, Arch Capital Group Ltd. maintains a prominent position in the global insurance and reinsurance markets, leveraging its underwriting expertise, experienced management, and robust capital base to serve a broad spectrum of clients in the financial services sector, particularly within diversified insurance.