Delta Air Lines, Inc. (DAL)
Delta Air Lines operates a major passenger and cargo airline with domestic and international routes.
Industrials stock comparison
DAL vs IEX: which business are you actually underwriting?
Compare Delta Air Lines, Inc. with IDEX Corporation 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
- Industrials
- Industry
- Different SIC
- Shared themes
- 1
- Updated
- 2026-02-19
DAL vs IEX: quick comparison
| Company fact | DAL | IEX |
|---|---|---|
| Company | Delta Air Lines, Inc. | IDEX Corporation |
| Exchange | NYSE | NYSE |
| Headquarters | Not recorded | Not recorded |
| Founded | Not recorded | Not recorded |
| SEC industry | Air Transportation, Scheduled | Pumps & Pumping Equipment |
| Fiscal year-end | December 31 | December 31 |
| Latest annual filing | 10-K · 2026-02-11 | 10-K · 2026-02-19 |
How the businesses differ
IDEX Corporation (IEX)
IDEX makes fluid-handling pumps, dispensing equipment, and fire-and-rescue products.
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. DAL is classified by the SEC as Air Transportation, Scheduled, while IEX is classified as Pumps & Pumping Equipment. 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 DAL when…
- Capital-spending and manufacturing PMIs
- Reshoring and supply-chain reconfiguration
- Defense budgets and geopolitical conflict
- Freight rates and logistics demand
Study IEX when…
- Capital-spending and manufacturing PMIs
- Reshoring and supply-chain reconfiguration
- Defense budgets and geopolitical conflict
- Freight rates and logistics demand
Shared research themes
US markets
SEC filing comparison and disclosure evidence
Start with primary filings because fiscal calendars and accounting presentation can make superficially similar quarters incomparable.DAL's fiscal year ends December 31, while IEX'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 DALand 0 for IEX. These delayed, range-based disclosures can identify a filing to inspect; they do not establish motive, conviction, or a real-time trading signal.
DAL primary filings
IEX 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 DAL or IEX
DAL vs IEX FAQs
Are DAL and IEX direct competitors?
Delta Air Lines, Inc. and IDEX Corporation sit in the same Industrials 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, DAL or IEX?
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 DAL vs IEX 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 DAL vs IEX.
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