The Index › Metabolic medicine › Which businesses must adjust as their customers change?

Delta

DAL

Delta Air Lines sells passenger air travel through its global hub network. We follow it because its customers may change what they buy as weight-loss drugs spread.

Revised after a check against the company's own annual filing. · entry updated 2026-10-19

Ticker: DAL
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Last refreshed from 10-Q filed 9 Oct 2026 (EDGAR)

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The living report

Bears on our standing view that AI's economy-wide productivity lift does not arrive before 2028. It is proved wrong if productivity jumps much sooner than we expect, or adoption stops spreading.

last revised 19 Oct 2026 · next scheduled disclosure not yet announced

The full report

Members: queues this company for a report on a coming night.

The market record

Free during the preview. Each figure shows only where two independent data providers, Massive and Yahoo, agree on it to the cent; a figure they do not agree on is left out. Dated, not live. It describes; it does not recommend.

Last close$87.20
close of 6 Nov 2026 · Massive and Yahoo agree

The day's range$85.70 – $87.86
6 Nov 2026 · both providers agree

52-week range$55.27 – $95.68
intraday low 18 Nov 2025 · intraday high 2 Jul 2026 · 251 sessions to 6 Nov 2026 · both providers agree

Market value$57.4 billion
the 6 Nov 2026 close × 657,912,380 shares outstanding on the 10-Q cover, as of 30 Sep 2026

Filings

Newest first, from EDGAR. Where a piece read a filing, one line of what it said.

6 Nov 20268-K · period ending 6 Nov 2026

9 Oct 202610-Q · period ending 30 Sep 2026
Its quarterly filing for the quarter ended September 30, 2026 said total operating cost per available seat mile (CASM) was up 25 percent on the year-earlier quarter. the piece

9 Oct 20268-K · period ending 9 Oct 2026
On 9 October Delta reported flat adjusted September-quarter profit. the piece

10 Jul 202610-Q · period ending 30 Jun 2026

10 Jul 20268-K · period ending 10 Jul 2026

22 Jun 20268-K · period ending 18 Jun 2026

12 Jun 20268-K · period ending 11 Jun 2026

8 Apr 202610-Q · period ending 31 Mar 2026

8 Apr 20268-K · period ending 8 Apr 2026

17 Mar 20268-K · period ending 17 Mar 2026

5 Mar 20268-K · period ending 27 Feb 2026

13 Feb 20268-K · period ending 11 Feb 2026

11 Feb 202610-K · period ending 31 Dec 2025

27 Jan 20268-K · period ending 27 Jan 2026

13 Jan 20268-K · period ending 12 Jan 2026

17 Dec 20258-K · period ending 11 Dec 2025

3 Dec 20258-K · period ending 3 Dec 2025

9 Oct 202510-Q · period ending 30 Sep 2025
On 9 October Delta reported flat adjusted September-quarter profit. the piece

9 Oct 20258-K · period ending 9 Oct 2025
On 9 October Delta reported flat adjusted September-quarter profit. the piece

30 Sep 20258-K · period ending 30 Sep 2025
Its quarterly filing for the quarter ended September 30, 2026 said total operating cost per available seat mile (CASM) was up 25 percent on the year-earlier quarter. the piece

11 Sep 20258-K · period ending 11 Sep 2025

10 Jul 20258-K · period ending 10 Jul 2025

10 Jul 202510-Q · period ending 30 Jun 2025

20 Jun 20258-K · period ending 19 Jun 2025

10 Jun 20258-K · period ending 5 Jun 2025

9 May 20258-K · period ending 9 May 2025

1 May 20258-K · period ending 29 Apr 2025

25 Apr 20258-K/A · period ending 12 Dec 2024

9 Apr 20258-K · period ending 9 Apr 2025

9 Apr 202510-Q · period ending 31 Mar 2025

10 Mar 20258-K · period ending 10 Mar 2025

11 Feb 202510-K · period ending 31 Dec 2024

15 Jan 20258-K · period ending 15 Jan 2025

10 Jan 20258-K · period ending 10 Jan 2025

13 Dec 20248-K · period ending 12 Dec 2024

20 Nov 20248-K · period ending 20 Nov 2024

Where it sits in the frame

The waterfall's proof point

Metabolic medicine: laboratory throughput is the productivity lift's nearest proof point, and it reports in pipeline data on a clock of quarters.

Tested by

AI's economy-wide productivity lift does not arrive before 2028 OPEN

Reports next

not yet announced

Latest disclosed

10-Q · filed 2026-10-09 · period ending 2026-09-30

Read the filing

Machine-readable

/index/DAL.json

What it has disclosed

Newest first. Every figure traces to a filing; "Show sources" shows which.

9 Oct 2026Delta full-year 2026 EPS guidance, low end: $5.10 (low end of range, vs $6.50 in July)

9 Oct 2026Delta full-year 2026 EPS guidance, high end: $5.60 (high end of range, vs $7.50 in July)

9 Oct 2026Delta fuel cost increase absorbed: $6 billion (increase in fuel costs)

30 Sep 2026Delta adjusted fuel expense, September quarter 2026: $4.1 billion (up 62 percent year on year)

30 Sep 2026Delta adjusted fuel expense increase, September quarter 2026: 62 percent (year on year)

30 Sep 2026Delta adjusted fuel price per gallon after refinery benefit, September quarter 2026: $3.61 a gallon (up 60 percent)

30 Sep 2026Delta adjusted fuel price increase, September quarter 2026: 60 percent (year on year)

30 Sep 2026Delta CASM increase, September quarter 2026: 25 percent (vs September 2025 quarter)

30 Sep 2026Delta adjusted (non-GAAP) pre-tax profit, September quarter 2026: $1.5 billion (matching last year)

30 Sep 2026Delta GAAP pre-tax profit, September quarter 2026: $1.1 billion

30 Sep 2026Delta operating revenue, September quarter 2026: $20.2 billion

10 Jul 2026Delta prior full-year EPS guidance (low end): $6.50–$7.50 (prior guidance, July)

10 Jul 2026Delta prior full-year EPS guidance (high end): $7.50 (prior guidance, July)

30 Jun 2026Delta premium revenue growth, June quarter 2026: 17 percent (vs year earlier)

30 Jun 2026Delta domestic unit revenue growth, June quarter 2026 (piece calls it revenue per seat mile): 12 percent (vs year earlier)

Mentioned in

Every piece that names this company, newest first: what it said, and the standing view it bore on. Written when the piece is committed; never edited, never removed.

21 Oct 2026Is a calmer Strait of Hormuz the end of the oil supply shock, or only the end of its worst phase?
Bears on our standing view that this inflation comes from broken supply, not too much money.

20 Oct 2026Outside the artificial-intelligence build, is the economy growing, or just charging more?
Bears on our standing view that this inflation comes from broken supply, not too much money.

Same question

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This entry

19 Oct 2026Entry rewritten in plain words: what the company sells, and why we follow it.

12 Oct 2026Verified against the 10-Q filed 2026-10-09 at launch.

Prices on this page are dated market records, shown free during the preview, each confirmed by two independent data providers. None is a recommendation.

Record

Written according to the Grant Bishop standard — machine-researched, machine-checked, human-judged; then read and committed by the publisher. Every number traces to a filing or a dated market record; every claim carries a date and what would prove it wrong.

Verification: multi-source verified, machine-drafted, human-gated
As of: 2026-10-09
Bears on: AI's economy-wide productivity lift does not arrive before 2028
Position disclosure: The publisher holds index-level U.S. equity exposure and no direct position in any single name discussed.
Not advice: General commentary for a general audience. Not advice for your situation.

Sources (12)

18-K, filed 6 Nov 2026, SEC EDGAR — https://www.sec.gov/Archives/edgar/data/27904/000119312526451940/d164939d8k.htm

210-Q, filed 9 Oct 2026, SEC EDGAR — https://www.sec.gov/Archives/edgar/data/27904/000002790426000038/dal-20260930.htm

38-K, filed 9 Oct 2026, SEC EDGAR — https://www.sec.gov/Archives/edgar/data/27904/000002790426000035/dal-20261009.htm

410-Q, filed 10 Jul 2026, SEC EDGAR — https://www.sec.gov/Archives/edgar/data/27904/000002790426000031/dal-20260630.htm

58-K, filed 10 Jul 2026, SEC EDGAR — https://www.sec.gov/Archives/edgar/data/27904/000002790426000029/dal-20260710.htm

68-K, filed 22 Jun 2026, SEC EDGAR — https://www.sec.gov/Archives/edgar/data/27904/000168316826005025/delta_8k.htm

78-K, filed 12 Jun 2026, SEC EDGAR — https://www.sec.gov/Archives/edgar/data/27904/000168316826004816/delta_8k.htm

810-Q, filed 8 Apr 2026, SEC EDGAR — https://www.sec.gov/Archives/edgar/data/27904/000002790426000022/dal-20260331.htm

98-K, filed 8 Apr 2026, SEC EDGAR — https://www.sec.gov/Archives/edgar/data/27904/000002790426000020/dal-20260408.htm

108-K, filed 17 Mar 2026, SEC EDGAR — https://www.sec.gov/Archives/edgar/data/27904/000168316826001875/delta_8k.htm

118-K, filed 5 Mar 2026, SEC EDGAR — https://www.sec.gov/Archives/edgar/data/27904/000168316826001510/delta_8k.htm

128-K, filed 13 Feb 2026, SEC EDGAR — https://www.sec.gov/Archives/edgar/data/27904/000168316826001033/delta_8k.htm

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