Insurance — US stocks
The Insurance sector includes 70 listed US companies with a combined market capitalization of $1.21T. Its largest constituent is Chubb Limited Common Stock (CB). Below are the biggest Insurance stocks and the latest news across them.
Largest Insurance stocks
- 1Chubb Limited Common StockCB$123Bmarket cap
- 2Progressive Corporation (The) Common StockPGR$115Bmarket cap
- 3Aon plc Class A Ordinary Shares (Ireland)AON$70Bmarket cap
- 4Manulife Financial Corporation Common StockMFC$64Bmarket cap
- 5The Travelers Companies, Inc. Common StockTRV$63Bmarket cap
- 6AFLAC Incorporated Common StockAFL$59Bmarket cap
- 7Allstate Corporation (The) Common StockALL$55Bmarket cap
- 8Arthur J. Gallagher & Co. Common StockAJG$54Bmarket cap
- 9MetLife, Inc. Common StockMET$54Bmarket cap
- 10Sun Life Financial Inc. Common StockSLF$40Bmarket cap
- 11American International Group, Inc. New Common StockAIG$39Bmarket cap
- 12Prudential Financial, Inc. Common StockPRU$36Bmarket cap
- 13The Hartford Insurance Group, Inc. Common StockHIG$35Bmarket cap
- 14Prudential Public Limited Company Common StockPUK$33Bmarket cap
- 15Arch Capital GroupACGL$31Bmarket cap
- 16Cincinnati FinancialCINF$25Bmarket cap
- 17W.R. Berkley Corporation Common StockWRB$25Bmarket cap
- 18Markel Group Inc. Common StockMKL$23Bmarket cap
- 19Principal Financial GroupPFG$22Bmarket cap
- 20Loews Corporation Common StockL$22Bmarket cap
- 21Brown & Brown, Inc. Common StockBRO$20Bmarket cap
- 22Reinsurance Group of America, Incorporated Common StockRGA$13Bmarket cap
- 23Fidelity National Financial, Inc. Common StockFNF$13Bmarket cap
- 24Aegon Ltd. New York Registry SharesAEG$13Bmarket cap
- 25Assurant, Inc. Common StockAIZ$13Bmarket cap
- 26RenaissanceRe Holdings Ltd. Common StockRNR$12Bmarket cap
- 27CNA Financial Corporation Common StockCNA$12Bmarket cap
- 28American Financial Group, Inc. Common StockAFG$11Bmarket cap
- 29Erie Indemnity CompanyERIE$10Bmarket cap
- 30Old Republic International Corporation Common StockORI$9Bmarket cap
Latest Insurance news
Social Security Reform Calls Revive 1983 Greenspan-Commission Playbook: What It Means for Insurers, MET, PRU
Jun 23, 2026
Social Security $500 Cut Risk and a Bipartisan Fix: What It Means for UNH, HUM, CVS
Jun 20, 2026
Medicaid Cuts, IRA Tax Trap, Estate Risks: What They Mean for CNC, SCHW, PRU
Jun 20, 2026
401(k) Balances Hit Record Highs: What Vanguard's Data Means for Asset Managers BLK, TROW
Jun 20, 2026
Retirement Savings Gap in Focus: What a 60-Year-Old's $2,000 Roth IRA Signals for Asset Managers (SCHW, BLK, PRU)
Jun 19, 2026
Indexed Universal Life Boom: What the IUL Trend Means for EQH, LNC, CRBG and Life Insurers
Jun 16, 2026
Warren Presses Trump on Social Security Retirement Age: What Reform Risk Means for Investors
Jun 15, 2026
Can Annuities Really Beat the Stock Market? A Retiree's Guide to Fixed-Rate Annuity Claims
Jun 14, 2026
Social Security Funding Debate: No Case for Massive Benefit Cuts, Says MarketWatch Analysis
Jun 13, 2026
Social Security 2032 Benefit Cut Warning: 22% Reduction Threat and What Retirement Investors Must Do
Jun 13, 2026
Social Security 22% Cliff Looms by 2033: 4 Retirement Income Plays Beyond Washington
Jun 13, 2026Insurance — frequently asked
What are the largest Insurance stocks?
The biggest US Insurance companies by market cap include Chubb Limited Common Stock (CB), Progressive Corporation (The) Common Stock (PGR), Aon plc Class A Ordinary Shares (Ireland) (AON), Manulife Financial Corporation Common Stock (MFC), The Travelers Companies, Inc. Common Stock (TRV). The full ranked list is shown above.
How big is the US Insurance sector?
The Insurance sector spans 70 listed US companies with a total market capitalization of about $1.21T.
Where can I see Insurance news?
The latest stories across Insurance companies are listed in the news section on this page, updated as they are published.
Market capitalization figures are aggregated from listed US companies and provided for information only — not investment advice.