Assay

Financial-condition grades for SEC filers

Company Report · as of Oct 9, 2026


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Delta AIR Lines, Inc.DAL · other
GradeTortoiseCmiddle fifth of 336 graded peers; percentile 56.4, sampling error 2.6 points; lower is stronger
Rank190 of 336
ProfitabilityCpercentile 43.3
SolvencyC/Dpercentile 59.6
Growth and financingCpercentile 47.0
Reliability0.94 AUCfailure model, filers with over $2.67B assets; 95% interval 0.88 to 0.97; 61 events, 2020 to 2025
Peer failure rate0.52% a yearItem 1.03 bankruptcies, same asset band, 2012 to 2025
Size bandover $2.67B assetstotal assets $81.3B[1]
Standard universeinsiderevenue above $1M and assets above $10M[1-2]
Warningsnone activenot computable: distress
Inputs computable8 of 14
Graded fromfilings received through Feb 11, 2026240 days before the rescan; every figure keyed to the SEC receipt date
Last close$82.162026-10-08; market equity $54.0B; iex feed
Price used in gradeNone
Share price, twelve months to the rescansplit-adjusted close; a lollipop at every rescan carries the letter held then; baseline ticks are SEC receipt dates of the inputs; ranges and dragging scroll the full history
$60$80NovDecJanFebMarAprMayJunJulAugSepOctBC$82.14
ABCDE20132014201520162017201820192020202120222023202420252026

Percentile at every rescan on file, Jan 21, 2012 to Oct 9, 2026; stronger toward the top. Hover for the date.

Open this report as it stood on

Letter setLetterPercentileBand
Jan 21, 2012nonen/aQ5
Feb 21, 2016B33.6Q5
Mar 21, 2018C/D61.4Q5
Sep 21, 2018D63.9Q5
Feb 21, 2019C/D61.5Q5
Feb 21, 2020C44.7Q5
Feb 21, 2021nonen/aQ5
Feb 21, 2022E98.2Q5
Feb 21, 2023D/E81.0Q5
Feb 21, 2024C/D61.2Q5
Mar 21, 2024D64.7Q5
Feb 21, 2025B33.8Q5
Feb 21, 2026C54.4Q5

Each date opens the report as it stood on that rescan.

Business, in the company's words. Opening of Item 1 of the 10-K received Feb 11, 2026; the document on sec.gov.

As a global airline based in the United States, we connect customers across our expansive global network with a commitment to ensuring that the future of travel is connected, personalized and enjoyable. In 2025, we served over 200 million customers safely, reliably and with industry-leading customer service innovation. As we celebrated our centennial year in 2025, we continued to differentiate Delta from the industry and to invest in extending our competitive advantages. These enduring competitive advantages, which support our trusted consumer brand, include our people and culture, operational reliability, global network, customer loyalty and financial foundation.

The Fourteen Inputs [top]

Lower percentile is stronger. Source numbers open the SEC filing; a range that spans filings opens the sources table.

InputPercentile, 0 to 100ValueSourcePeer medianPercentilePeersPeriod end
Profitability, sleeve percentile 43.3
Gross profitabilitynot computable27.1%
one or more required annual facts are missing
Return on invested capital17.0%[3-11]10.0%26.01512025-12-31
Accruals ratio(4.3%)[1,12-14](5.9%)60.65062025-12-31
Gross margin stability, five yearsnot computable2.2 pts
five annual gross margins are required; found 0
Solvency, sleeve percentile 59.6
Twelve-month failure probabilitynot computable0.04%
liabilities and a nearby cover-page share count are required at 2026-06-30
Altman Z double-primenot computable2.05
one or more required annual facts are missing
Net debt to EBITDA0.99x[3,6,8,15]2.52x26.81842025-12-31
Interest coveragenot computable2.18x
latest aligned inputs end 2017-12-31; latest annual assets end 2025-12-31
Current ratio0.40x[16-17]1.32x92.55062025-12-31
Growth and financing, sleeve percentile 47.0
Revenue growth, three-year compound7.8%[2,18-20]5.1%37.64032025-12-31
Free cash flow growth, three-year compoundnot computable8.7%
current FCF must be positive and base FCF must exceed $100,000
Reinvestment rate47.2%[3-5,15-17,21-23]11.9%34.91902025-12-31
Asset growth, three years4.0%[1,14,24-25]4.1%50.34382025-12-31
Net share issuance, one year1.1%[26-27](0.4%)65.13562026-01-31

Gross profitability. Revenue less cost of goods sold, over total assets.

Accruals ratio. Net income less operating cash flow, over average assets; lower is stronger.

Gross margin stability, five years. Standard deviation of gross margin; lower is stronger.

Twelve-month failure probability. CHS model; lower is stronger.

Net debt to EBITDA. Lower is stronger.

Net share issuance, one year. Split-adjusted; lower is stronger.

Sleeves are equal-weighted; within a sleeve each computable input carries equal weight. Composite -0.001; sampling error 2.6 percentile points on 336 peers.

Among 336 Peers [top]

ABCDESCCO, Southern Copper; A, percentile 8.7; market equity $165.7BSCCOPWR, Quanta Services, Inc.; B, percentile 32.2; market equity $103.0BPWRNFLX, Netflix Inc.; B, percentile 35.5; market equity $298.0BNFLXUBER, Uber Technologies, Inc.; C, percentile 44.8; market equity $143.5BUBERUNP, Union Pacific Corp.; C, percentile 53.7; market equity $165.3BUNPDIS, Walt Disney Co.; D, percentile 64.2; market equity $184.8BDISDAL 56.4strongerweaker

Composite score of every graded peer, smoothed. Vertical rules are the letter band edges at the 20th, 40th, 60th and 80th percentiles. Small dots are the six largest peers by market equity.

RankCompanyPercentileLetterWarnings
185Neogenomics Inc. (NEO)

Neogenomics Inc. (NEO)

Cmiddle fifth; percentile 54.9

Nasdaq · Services-Testing Laboratories

market equity $2.1B; last close $16.03

No active warnings; 9 of 14 inputs

54.9C
186Life Time Group Holdings, Inc. (LTH)

Life Time Group Holdings, Inc. (LTH)

Cmiddle fifth; percentile 55.2

NYSE · Services-Membership Sports & Recreation Clubs

market equity $9.0B; last close $40.29

No active warnings; 10 of 14 inputs

55.2C
187United Airlines Holdings, Inc. (UAL)

United Airlines Holdings, Inc. (UAL)

Cmiddle fifth; percentile 55.5

Nasdaq · Air Transportation, Scheduled

market equity $34.9B; last close $107.42

No active warnings; 9 of 14 inputs

55.5C
188Equifax Inc. (EFX)

Equifax Inc. (EFX)

Cmiddle fifth; percentile 55.8

NYSE · Services-Consumer Credit Reporting, Collection Agencies

market equity $17.1B; last close $145.31

No active warnings; 10 of 14 inputs

55.8C
189International Seaways, Inc. (INSW)

International Seaways, Inc. (INSW)

Cmiddle fifth; percentile 56.1

NYSE · Water Transportation

market equity $6.0B; last close $121.81

No active warnings; 8 of 14 inputs

56.1C
190Delta AIR Lines, Inc. (DAL)

Delta AIR Lines, Inc. (DAL)

Cmiddle fifth; percentile 56.4

NYSE · Air Transportation, Scheduled

market equity $54.0B; last close $82.16

No active warnings; 8 of 14 inputs

56.4C
191Vivakor, Inc. (VIVK)

Vivakor, Inc. (VIVK)

Cmiddle fifth; percentile 56.7

Nasdaq · Refuse Systems

market equity $32.8M; last close $4.43

Warnings: short runway, late filer; 7 of 14 inputs

56.7Cshort runway, late filer
192Ameresco, Inc. (AMRC)

Ameresco, Inc. (AMRC)

Cmiddle fifth; percentile 57.0

NYSE · Construction - Special Trade Contractors

last close $21.01

No active warnings; 7 of 14 inputs

57.0C
193Republic Services, Inc. (RSG)

Republic Services, Inc. (RSG)

Cmiddle fifth; percentile 57.3

NYSE · Refuse Systems

market equity $66.4B; last close $216.68

No active warnings; 11 of 14 inputs

57.3C
194ManpowerGroup Inc. (MAN)

ManpowerGroup Inc. (MAN)

C/Don the C/D boundary; percentile 57.6

NYSE · Services-Help Supply Services

market equity $2.5B; last close $54.38

No active warnings; 9 of 14 inputs

57.6C/D
195GEE Group Inc. (JOB)

GEE Group Inc. (JOB)

C/Don the C/D boundary; percentile 57.9

NYSE · Services-Employment Agencies

market equity $23.7M; last close $0.21

No active warnings; 10 of 14 inputs

57.9C/D
Peer policyLetterPercentilePeers
all graded filers, equal sleevesC53.42204
sector peers, equal sleeves (the grade)C56.4336
same exchange, equal sleevesC51.8984
sector peers, equal inputsC56.1336

Each letter is one fifth of the 336 graded peers, about 67 companies. A boundary letter (A/B, B/C, C/D, D/E) marks a percentile within one sampling error of a band edge.

What the Price Implies [top]

Market measures at the 2026-10-08 close. None enters the grade. Percentile among graded peers with the same measure.

MeasureValuePeer medianPercentileReading
Twelve-month price change, skipping the latest month38.9%2.0%77hotter than 77 of 100 peers
Distance from 52-week high(12.3%)(26.8%)76closer to its high than 76 of 100 peers
EBIT to enterprise value9.7%4.4%88pricier than 12 of 100 peers
Free cash flow yield7.1%4.1%72pricier than 28 of 100 peers
Book value to price0.400.3459pricier than 41 of 100 peers
Sales to price1.170.7066pricier than 34 of 100 peers
Composite equity issuance, five years(0.5%)(8.8%)65more equity-funded than 65 of 100 peers
Relative strength against the sector, log excess return0.18(0.13)77ahead of 77 of 100 peers

Inputs: market equity $54.0B; EBIT $5.8B; free cash flow $3.8B; book equity $21.8B; sales $63.4B; debt $10.5B; cash $4.7B[28].

Diagnostics [top]

Diagnostics do not feed the grade.

Piotroski F-score: None of 9, period end 2025-12-31
Return on assets above zero6.6%✓ pass[12,14]
Operating cash flow above zero$8.3B✓ pass[13]
Return on assets improved1.9 pts✓ pass[12,14,24,29]
Operating cash flow exceeds net income$3.3B✓ pass[12-13]
Long-term leverage fell(2.9 pts)✓ pass[1,14,24,30-31]
Current ratio improved2.8 pts✓ pass[16-17,22-23]
No new shares issued1.1%✗ fail[26-27]
Gross margin improvedn/a
Asset turnover improved0.4 pts✓ pass[2,14,18,24]
Cash, filings, liquidity
Cash and equivalents$4.7B[32]
Operating cash flow, four quarters$8.1B[13,32-36]
Months of runwaynot finite
trailing operating cash flow is nonnegative, so runway is not finite
Late filings, two years0
NT 10-K or NT 10-Q
Days since last periodic filing91
10-Q received Jul 10, 2026
Median daily dollar volume$481.1M
63 sessions
Days since newest grade input240

Downloads [top]

Sources [top]

Every citation on this page. Filing opens the SEC index page for that submission; viewer opens the SEC interactive data for the same filing; series opens the SEC XBRL API record for that tag and company.

#ConceptXBRL tagValuePeriod endReceivedFormLinks
1assetsus-gaap:Assets$81.3B2025-12-312026-02-1110-Kfiling · viewer · series
2revenueus-gaap:RevenueFromContractWithCustomerExcludingAssessedTax$63.4B2025-12-312026-02-1110-Kfiling · viewer · series
3operating incomeus-gaap:OperatingIncomeLoss$5.8B2025-12-312026-02-1110-Kfiling · viewer · series
4pretax incomeus-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest$6.2B2025-12-312026-02-1110-Kfiling · viewer · series
5income taxus-gaap:IncomeTaxExpenseBenefit$1.2B2025-12-312026-02-1110-Kfiling · viewer · series
6total debtus-gaap:LongTermDebtAndCapitalLeaseObligations$12.5B2025-12-312026-02-1110-Kfiling · viewer · series
7book equityus-gaap:StockholdersEquity$20.9B2025-12-312026-02-1110-Kfiling · viewer · series
8cashus-gaap:CashAndCashEquivalentsAtCarryingValue$4.3B2025-12-312026-02-1110-Kfiling · viewer · series
9total debtus-gaap:LongTermDebtAndCapitalLeaseObligations$14.0B2024-12-312026-02-1110-Kfiling · viewer · series
10book equityus-gaap:StockholdersEquity$15.3B2024-12-312026-02-1110-Kfiling · viewer · series
11cashus-gaap:CashAndCashEquivalentsAtCarryingValue$3.1B2024-12-312026-02-1110-Kfiling · viewer · series
12net incomeus-gaap:NetIncomeLoss$5.0B2025-12-312026-02-1110-Kfiling · viewer · series
13operating cash flowus-gaap:NetCashProvidedByUsedInOperatingActivities$8.3B2025-12-312026-02-1110-Kfiling · viewer · series
14assetsus-gaap:Assets$75.4B2024-12-312026-02-1110-Kfiling · viewer · series
15depreciation amortizationus-gaap:DepreciationDepletionAndAmortization$2.4B2025-12-312026-02-1110-Kfiling · viewer · series
16current assetsus-gaap:AssetsCurrent$11.0B2025-12-312026-02-1110-Kfiling · viewer · series
17current liabilitiesus-gaap:LiabilitiesCurrent$27.6B2025-12-312026-02-1110-Kfiling · viewer · series
18revenueus-gaap:RevenueFromContractWithCustomerExcludingAssessedTax$61.6B2024-12-312026-02-1110-Kfiling · viewer · series
19revenueus-gaap:RevenueFromContractWithCustomerExcludingAssessedTax$58.0B2023-12-312026-02-1110-Kfiling · viewer · series
20revenueus-gaap:RevenueFromContractWithCustomerExcludingAssessedTax$50.6B2022-12-312025-02-1110-Kfiling · viewer · series
21capital expenditureus-gaap:PaymentsToAcquireProductiveAssets$4.5B2025-12-312026-02-1110-Kfiling · viewer · series
22current assetsus-gaap:AssetsCurrent$9.8B2024-12-312026-02-1110-Kfiling · viewer · series
23current liabilitiesus-gaap:LiabilitiesCurrent$26.7B2024-12-312026-02-1110-Kfiling · viewer · series
24assetsus-gaap:Assets$73.6B2023-12-312026-02-1110-Kfiling · viewer · series
25assetsus-gaap:Assets$72.3B2022-12-312025-02-1110-Kfiling · viewer · series
26shares outstandingdei:EntityCommonStockSharesOutstanding653,130,7082026-01-312026-02-1110-Kfiling · viewer · series
27shares outstandingdei:EntityCommonStockSharesOutstanding645,962,0062025-01-312025-02-1110-Kfiling · viewer · series
28shares outstandingdei:EntityCommonStockSharesOutstanding657,623,0302026-06-302026-07-1010-Qfiling · viewer · series
29net incomeus-gaap:NetIncomeLoss$3.5B2024-12-312026-02-1110-Kfiling · viewer · series
30long term debtus-gaap:LongTermDebtNoncurrent$11.9B2025-12-312026-02-1110-Kfiling · viewer · series
31long term debtus-gaap:LongTermDebtNoncurrent$13.5B2024-12-312026-02-1110-Kfiling · viewer · series
32cashus-gaap:CashAndCashEquivalentsAtCarryingValue$4.7B2026-06-302026-07-1010-Qfiling · viewer · series
33operating cash flowus-gaap:NetCashProvidedByUsedInOperatingActivities$4.0B2026-06-302026-07-1010-Qfiling · viewer · series
34operating cash flowus-gaap:NetCashProvidedByUsedInOperatingActivities$2.4B2026-03-312026-04-0810-Qfiling · viewer · series
35operating cash flowus-gaap:NetCashProvidedByUsedInOperatingActivities$6.1B2025-09-302025-10-0910-Qfiling · viewer · series
36operating cash flowus-gaap:NetCashProvidedByUsedInOperatingActivities$4.2B2025-06-302026-07-1010-Qfiling · viewer · series

Limitations [top]

Grade boundary. Percentile 56.4 is 3.6 points from the nearest band edge; sampling error is 2.6 points.

Peer group. Sector assignment from four-digit SIC codes, hand-tuned and published. The grade under three alternative peer policies is tabled above.

Size. Within a sector the letter tracks size. Among graded filers in the smallest asset band, 72% grade E and 0% grade A; in the largest, 13% grade E and 21% grade A. Universe as of Oct 9, 2026.

Failure model. filings 2012-01-01 to 2019-12-31 fit, filings 2020-01-01 to 2025-12-31 test; status post hoc pending confirmation. pre-registered on 2026 filings once their 12-month outcome windows close; supported if the paired per-quintile gain over the pooled model has a lower bound above 0.05.

Input validity. Revenue or total assets at or below $100,000 sets the degenerate-inputs flag. An input whose denominator is at or below $100,000 is left not computable rather than ranked.

Returns. No input on this page has a post-2015 confidence interval on returns that excludes zero. The grade ranks reported financial condition and is not a return forecast.