Arch Capital Group Ltd. (ACGL)
Arch Capital Group provides insurance, reinsurance, and mortgage insurance on a global basis.
Financials stock comparison
ACGL vs PFG: which business are you actually underwriting?
Compare Arch Capital Group Ltd. with Principal Financial Group, Inc. using their business models, SEC classifications, fiscal calendars, current primary filings, and the research questions that matter. This is a thesis framework—not a price target or automatic winner.
- Sector
- Financials
- Industry
- Different SIC
- Shared themes
- 2
- Updated
- 2026-02-26
ACGL vs PFG: quick comparison
| Company fact | ACGL | PFG |
|---|---|---|
| Company | Arch Capital Group Ltd. | Principal Financial Group, Inc. |
| Exchange | NASDAQ | NASDAQ |
| Headquarters | Not recorded | Not recorded |
| Founded | Not recorded | Not recorded |
| SEC industry | Fire, Marine & Casualty Insurance | Accident & Health Insurance |
| Fiscal year-end | December 31 | December 31 |
| Latest annual filing | 10-K · 2026-02-26 | 10-K · 2026-02-18 |
How the businesses differ
Principal Financial Group, Inc. (PFG)
Principal Financial Group provides retirement plans, insurance, and asset management.
The useful starting point is not which ticker has performed better. It is whether the two companies convert the same economic forces into revenue and cash flow in the same way. ACGL is classified by the SEC as Fire, Marine & Casualty Insurance, while PFG is classified as Accident & Health Insurance. The different industry codes are a warning against treating sector membership as proof of identical economics.
Which thesis does each company fit?
Use the distinction below to decide which filing deserves deeper work. It is a research routing rule, not a recommendation or prediction.
Study ACGL when…
- The shape of the yield curve and net interest margins
- Credit quality and loan-loss provisions
- Regulation and capital requirements
- Deal activity and market volatility
Study PFG when…
- The shape of the yield curve and net interest margins
- Credit quality and loan-loss provisions
- Regulation and capital requirements
- Deal activity and market volatility
Shared research themes
US marketsRates & central banks
SEC filing comparison and disclosure evidence
Start with primary filings because fiscal calendars and accounting presentation can make superficially similar quarters incomparable.ACGL's fiscal year ends December 31, while PFG's ends December 31. Normalize the reporting periods before comparing growth, margins, capital intensity, or guidance.
The current verified House Clerk snapshot contains 0matched transaction rows for ACGLand 0 for PFG. These delayed, range-based disclosures can identify a filing to inspect; they do not establish motive, conviction, or a real-time trading signal.
ACGL primary filings
PFG primary filings
What this comparison cannot tell you
This page does not contain licensed live prices, a valuation model, earnings estimates, portfolio constraints, or a forecast of future returns. SEC classifications can be broad, company descriptions can lag strategic change, and the latest annual filing may predate a material acquisition or divestiture. Read subsequent quarterly and current reports before making a decision.
A stronger business is not automatically the better stock. Starting valuation, expectations, capital structure, cyclicality, dilution, and the probability of each thesis determine the investment outcome. Use this comparison to frame the work, then verify the numbers in the linked filings and current company disclosures.
More comparisons involving ACGL or PFG
ACGL vs PFG FAQs
Are ACGL and PFG direct competitors?
Arch Capital Group Ltd. and Principal Financial Group, Inc. sit in the same Financials sector but have different SEC industry classifications. The comparison is most useful for portfolio role and sector exposure, not as a claim that every product competes directly.
Which is better, ACGL or PFG?
There is no context-free winner. Compare the operating exposures, filing evidence, valuation, balance sheet, and risks against the specific thesis you are testing. This page deliberately does not turn a static profile into a buy or sell recommendation.
Does this ACGL vs PFG comparison include live prices?
No. Yield Theory does not republish unlicensed real-time market data. Use a regulated broker or licensed quote provider for current prices, then use the primary filings here to test the business thesis.
Where does the company information come from?
Company classifications, fiscal year-ends, and filing links come from the SEC EDGAR submissions API snapshot refreshed 2026-08-10. Business summaries and research themes are maintained by Yield Theory.
Data snapshot: SEC EDGAR submissions API, refreshed 2026-08-10. Independent educational research; not investment advice.
Go beyond ACGL vs PFG.
Yield Theory connects filings, capital flows, catalysts, and risks into an investable research process.
$15/mo or $150/yr · cancel future renewals anytime · sources included