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Daily close · 2026-11-06
Price return
Both stocks start at 0% on the first shared trading day.
ACGL207.39%
RGA134.36%
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Split-adjusted closing prices. Dividends are excluded.Year ranges begin January 1 of the end year minus the selected years.
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CONTEXT ATTACHEDACGL + RGAPrices, financials and SEC filing evidence
Similarity
Limited detail
4 shared / 6 total tags
The available classifications are too broad to identify close peers. Compare the business descriptions and filing evidence below.
How similar are their businesses?
The score compares business activities in annual filings released in 2025. Core activities receive four times the weight of material activities. Industries that fewer companies share carry more weight.
Positive activities from the two selected annual filings. Expand each group to view all its activities, or use the complete table below. These are classification sets, not revenue shares. The weighted similarity score also accounts for exposure and how common each activity is.Show business activity table · 6 rows, 3 columns
Core activities receive full weight; material activities receive one quarter. Select a tag to read the filing evidence.
Business activity
ACGL
RGA
Core
Core
Material
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Core
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Not tagged
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Material
What each company does
Compare the businesses
AL
Arch Capital Group Ltd
ACGL · XNAS
Arch Capital Group Ltd., together with its subsidiaries, provides insurance, reinsurance, and mortgage insurance products in the United States, Canada, Bermuda, the United Kingdom, Europe, and Australia. The Insurance segment offers commercial automobile; commercial multiperil; financial and professional line liability; admitted, excess, and surplus casualty lines; property and short-tail specialty; workers compensation; casualty; marine and aviation; excess and surplus casualty; construction and national accounts; alternative market risks and employer's liability; travel, accident, and health; contract and commercial surety coverage; and other insurance products, as well as Lloyd's syndicates; programs; and warranty and lenders solutions. Its Reinsurance segment provides reinsurance products for casualty; marine and aviation; property catastrophe; property excluding property catastrophe; and other specialty products. The Mortgage segment offers U.S. primary mortgage insurance business written predominantly on loans sold to the Federal National Mortgage Association and Federal Home Loan Mortgage Corporation; reinsurance and underwriting services related to the U.S. credit-risk transfer business and other U.S. mortgage reinsurance transactions; and international mortgage insurance and reinsurance business covering loans. It markets its products through a group of licensed independent retail and wholesale brokers. The company was formerly known as Risk Capital Holdings, Inc. Arch Capital Group Ltd. was founded in 1995 and is headquartered in Pembroke, Bermuda.
Reinsurance Group of America, Incorporated provides reinsurance and financial solutions. It offers individual and group life and health insurance products, such as term life, credit life, universal life, whole life, group life and health, joint and last survivor insurance, critical illness, disability, and longevity products, as well as asset-intensive and financial reinsurance products; and other capital motivated solutions. The company also provides reinsurance for mortality, morbidity, lapse, and investment-related risk associated with products; and reinsurance for investment-related risks. In addition, the company develops and markets technology solutions; and offers consulting and outsourcing solutions for the insurance and reinsurance industries. It operates in the United States, Latin America, Canada, Europe, the Middle East, Africa, and the Asia Pacific. Reinsurance Group of America, Incorporated was founded in 1973 and is headquartered in Chesterfield, Missouri.
USD values from stored observations. Fiscal period endings and availability dates may differ.
ACGL period ended 2025-12-31 · available 2026-02-26 · SEC filing ↗RGA period ended 2025-12-31 · available 2026-02-20 · SEC filing ↗
Behind the comparison
Sources and methodology
Price return uses split-adjusted daily closes and excludes dividends. Both stocks start on the first shared trading day within the selected window. Unavailable metrics leave gaps.
Financials use SEC canonical statements available by the displayed cutoff, retaining each company's fiscal period end. Annual and quarterly amounts are shown separately. P/E is unavailable when earnings do not support a positive ratio.
Business overlap uses industry tags from annual filings released in 2025. Each core activity receives full weight; each material activity receives one quarter of that weight. Rarer industries carry more weight. We sum the smaller exposure for each shared activity and divide it by the sum of the larger exposure for every activity in either company. This measures business overlap, rather than price correlation or expected returns.
Search eligibility requires distinct issuers, a shared core category and at least 20% weighted overlap, supported by industry or sector evidence and specific business activities. Broad classifications require stronger overlap within the same sector. Comparisons also need at least 252 shared price observations within two years, recent trading and a common sourced revenue or net-income trend. Missing P/E or gross margin alone does not exclude a comparison. The eligibility snapshot refreshes daily. Related comparisons use a separate, stricter peer rule; their ten-peer discovery limit does not limit search eligibility. Other stock pairs remain available in the comparison tool.
Statements available through 2026-11-10. Industry snapshot: 2025-12-31 · 5,721 classified issuers.