Industrials stock comparison

CTAS vs DAL: how the two businesses compare

  • Bigger business: DAL, with $63.4B of yearly revenue, about 5.6× CTAS's $11.3B.
  • More profitable: CTAS keeps 18 cents of each sales dollar as profit, against 8 cents at DAL.
  • More cash from each sale: CTAS turns 20 cents of each sales dollar into operating cash flow, against 13 cents at DAL.

From each company's latest annual SEC filing. Fiscal years can end on different dates.

Delta Air Lines (DAL) is the larger business by reported revenue: $63.4B in its fiscal year ended Dec 2025, about 5.6× CTAS's $11.3B (fiscal year ended May 2026). CTAS's net margin was 17.8% and DAL's 7.9%. The SEC classifies them differently (Men's & Boys' Furnishgs, Work Clothg, & Allied Garments; Air Transportation, Scheduled); what connects them is shared exposure to the Economic trends research theme, not a common industry.

Figures come from each company's own SEC filings. This page compares the businesses; it is not a price target or a verdict.

Sector
Industrials
SEC industry
Different
Separate classifications
Fiscal year ends
Different
CTAS May 31 · DAL December 31
Reviewed
Jul 29, 2026

CTAS vs DAL: quick comparison

Company factCTASDAL
CompanyCintas CorporationDelta Air Lines, Inc.
ExchangeNASDAQNYSE
SEC industryMen's & Boys' Furnishgs, Work Clothg, & Allied GarmentsAir Transportation, Scheduled
Fiscal year-endMay 31December 31
Latest annual filing10-K · 2026-07-2910-K · 2026-02-11

CTAS vs DAL: audited financials

  • Scale: DAL's $63.4B of revenue is about 5.6× CTAS's $11.3B.
  • Net margin: CTAS kept 17.8% of revenue as net income versus 7.9% at DAL.
  • Cash conversion: operating cash flow equalled CTAS 20.2% of revenue, or 1.14× net income; DAL 13.2% of revenue, or 1.67× net income. A ratio well above 1× usually reflects non-cash charges or working-capital release; well below 1× can reflect working-capital build or non-cash gains.
  • Periods: the fiscal years end about 5 months apart (2026-05-31 for CTAS, 2025-12-31 for DAL), so each figure reflects somewhat different demand and cost conditions.

CTAS: FY ending 2026-05-31 · DAL: FY ending 2025-12-31. Figures as tagged in each issuer's SEC XBRL filing; fiscal calendars may not align.

Where CTAS and DAL overlap, and where they don't

Overlap

  • Shared research theme: Economic trends.

Differences

  • Different SEC industries: CTAS files as Men's & Boys' Furnishgs, Work Clothg, & Allied Garments; DAL as Air Transportation, Scheduled.
  • Offset fiscal calendars: CTAS's year ends May 31 and DAL's December 31, about 5 months apart.
  • Scale: DAL reported about 5.6× the annual revenue of CTAS.
  • Profitability: net margin of 17.8% for CTAS versus 7.9% for DAL.

Overlap is drawn from SEC classifications and Yield Theory research themes. It is not evidence that the companies sell to the same customers or compete product for product.

Cintas Corporation (CTAS)

Cintas provides uniform rental, facility supplies, and safety products to businesses.

Delta Air Lines, Inc. (DAL)

Delta Air Lines operates a major passenger and cargo airline with domestic and international routes.

What moves each company

Company-specific drivers maintained by Yield Theory. Use them to decide which filing deserves deeper work; they are not predictions.

What moves CTAS

We have not yet published a company-specific driver list for CTAS. The primary source is Item 1 (Business) and Item 1A (Risk Factors) of its 10-K filed 2026-07-29.

What moves DAL

We have not yet published a company-specific driver list for DAL. The primary source is Item 1 (Business) and Item 1A (Risk Factors) of its 10-K filed 2026-02-11.

The investment question

You now know DAL reports about 5.6× CTAS's revenue, and CTAS keeps more of each dollar as net income. Those are the facts. The investment question is what each share price already assumes about their exposure to economic trends, and which evidence in the next filings would prove that assumption wrong.

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SEC filing comparison and disclosure evidence

Start with primary filings because fiscal calendars and accounting presentation can make superficially similar quarters incomparable. CTAS's fiscal year ends May 31, while DAL's ends December 31. Normalize the reporting periods before comparing growth, margins, capital intensity, or guidance.

The current verified House and Senate snapshot contains 9 matched transaction rows for CTAS and 8 matched transaction rows for DAL. These delayed, range-based disclosures can identify a filing to inspect; they do not establish motive, conviction, or a real-time trading signal.

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.

CTAS vs DAL FAQs

Are CTAS and DAL direct competitors?

Not necessarily. Cintas files as Men's & Boys' Furnishgs, Work Clothg, & Allied Garments and Delta Air Lines as Air Transportation, Scheduled. The pair is compared because both map to the Economic trends research theme, not because the filings show head-to-head competition.

Is CTAS or DAL the bigger company by revenue?

Delta Air Lines (DAL) is the larger business by reported revenue: $63.4B in its fiscal year ended Dec 2025, about 5.6× CTAS's $11.3B (fiscal year ended May 2026). CTAS's net margin was 17.8% and DAL's 7.9%. The SEC classifies them differently (Men's & Boys' Furnishgs, Work Clothg, & Allied Garments; Air Transportation, Scheduled); what connects them is shared exposure to the Economic trends research theme, not a common industry. Each figure is the annual amount tagged in the company's own SEC XBRL filing; market value depends on live prices, which this page does not publish.

Which is better, CTAS or DAL?

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 CTAS vs DAL comparison include live prices?

No. Yield Theory does not republish unlicensed real-time market data. The financial figures on this page are the audited annual numbers Cintas Corporation and Delta Air Lines, Inc. tagged in their SEC XBRL filings. Use a regulated broker or licensed quote provider for current prices and valuation multiples.

Where does the company information come from?

Company classifications, fiscal year-ends, and filing links come from the SEC EDGAR submissions API snapshot refreshed 2026-10-03. Business summaries and research themes are maintained by Yield Theory.

Data snapshot: SEC EDGAR submissions API, refreshed 2026-10-03. Independent educational research; not investment advice.

Which business differences matter to the investment thesis?

CTAS vs DAL compares reported results. The reports below show how we connect operating evidence to an investment thesis, its assumptions, catalysts, and risks. $39/month or $249/year.

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