FUNDAMENTAL RATING
FUNDAMENTAL SCORE
48 / 100
Summary
Delta Air Lines posts an Altman Z-score of 1.50, which sits below the distress threshold of 1.81 and flags near-term solvency risk for this capitalization profile. Net income shows a volatile multi-year picture: net income CAGR is 56.0% (three-year), but one or more annual results are extreme outliers that materially inflate that rate, and stripping the outlier leaves a less consistent earnings trend. Latest annual revenue rose 2.8% while net income rose 44.8%, and the most recent quarter reported $756M in net income, a 52.9% decline QoQ (quarter-over-quarter). The Piotroski F-Score of 6 on a 0 to 9 quality scale is a mixed earnings-quality reading, and the price-to-earnings ratio of 9.9 is roughly half the S&P 500 average. Given the outlier and the low Z-score, this is a provisional read until the next quarter clarifies durability.
Revenue — Annual Comparison
Net Income — Annual Comparison
Quarterly Detail Charts
Quarterly Revenue
Quarterly Net Income
Piotroski F-Score Breakdown
6/9 · Neutral
Profitability — Net income positive this fiscal year
Pass
Return on Assets — Return on Assets improved year-over-year
Pass
Cash flow positive — Cash from operations positive this fiscal year
Pass
Earnings quality — Cash from operations exceeds net income
Pass
Leverage down — Long-term debt / total assets improved
Pass
Liquidity up — Current ratio improved year-over-year
Pass
No share dilution — Share count did not increase year-over-year
Fail
Margin up — Gross margin expanded year-over-year
N/A
Asset efficiency — Asset turnover improved year-over-year
Fail
Data Source
This dashboard applies a modified 9-signal Piotroski F-Score (Piotroski, 2000) and Altman Z-Score models. Fundamental filing data is sourced from the SEC's EDGAR XBRL database (primary), with API Ninjas as backup for freshly-filed 10-Ks not yet in SEC. Live price, market cap, and EPS display use Tiingo end-of-day data. This page is informational analysis, not investment advice. See Financial Disclaimer.
Recent Filings
Formula & Methodology
Trend inputAnnual revenue and net income year-over-year direction contributes 20% of the score.
Piotroski inputModified 9-test Piotroski F-Score (Quality) contributes 40% of the score.
Altman inputAltman Z-Score (Distress) contributes 40% of the score.
Rating ruleFormula: Trend (20%) + Piotroski F-Score (40%) + Altman Z-Score (40%). Trend blends annual revenue and net income year-over-year direction. Piotroski is the modified 9-test variant (7 classic + 2 cash-flow tests). Altman uses the 1968 Z-Score with Safe/Grey/Distress zones. Combined blend uses ±0.45 thresholds: Bullish at +0.45 or higher, Bearish at -0.45 or lower, Neutral in between. Missing sub-signals count as Neutral (0) and weights are not re-normalized — a company with fewer available signals must earn its rating from stronger reads on the remaining pillars.