Delta Air LinesMEX:DAL +0.48%73 3-Year ROIIC % is 20.18 as of Dec. 2025, which is 76% above its 10-year median of 11.49. GuruFocus rates MEX:DAL with a GF Score™ of 73/100 and a GF Value™ of MXN963.49 (Significantly Overvalued). The stock has 10 warning signs investors should review. Among 936 Transportation companies, Delta Air Lines ranks better than 80.02% on this metric.
3-Year Return on Invested Incremental Capital (3-Year ROIIC %) measures the change in earnings as a percentage of change in investment over 3-year.
Delta Air Lines's 3-Year ROIIC % for the quarter that ended in Dec. 2025 was 20.18%. High ROIIC is generally an indication that your business is capital efficient or has a higher operating leverage.
The industry rank for Delta Air Lines's 3-Year ROIIC % or its related term are showing as below:
MEX:DAL's 3-Year ROIIC % is ranked better than 80.02% of 936
companies
in the Transportation industry
Industry Median: 1.845
vs MEX:DAL: 20.18
Delta Air Lines (MEX:DAL) 3-Year ROIIC % Explanation
Return on Incremental Invested Capital (ROIIC) is an extension of Return on Investment Capital (ROIC). ROIC % tells investors how efficiently that profitability is earned per dollar of company capital. ROIIC narrows the focus even further and shows how profitable each additional unit of capital investment could be. ROIIC % is a more powerful metric than ROIC because it measures how much money the company can generate going forward on future capital investments.
High ROIIC is generally an indication that your business is capital efficient or has a higher operating leverage.
Be Aware
It's important to keep in mind that when tracking ROIIC, the metric is better suited to forecasting the trend of future returns rather than measuring current return on investment.
Delta Air Lines 3-Year ROIIC % Related Terms
Delta Air Lines 3-Year ROIIC % Historical Data
* Premium members only.
The historical data trend for Delta Air Lines's 3-Year ROIIC % can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
MEX:DAL vs UAL, LUV, AAL: 3-Year ROIIC % Comparison
For the Airlines subindustry, Delta Air Lines's 3-Year ROIIC %, along with its competitors' market caps and 3-Year ROIIC % data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Delta Air Lines 3-Year ROIIC % vs Transportation Industry
For the Transportation industry and Industrials sector, Delta Air Lines's 3-Year ROIIC % distribution charts can be found below:
* The bar in red indicates where Delta Air Lines's 3-Year ROIIC % falls into.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
** Annual data of NOPAT and Invested Capital was used to calculate 3-Year ROIIC %.
*** Please be aware that the ROIIC (Return on Invested Capital) calculations are based on company-level data using the primary share class. The calculated data provided is for demonstration purposes and may slightly differ from the results displayed in the title due to potential variations caused by currency exchange rate differences throughout the year.
Delta Air Lines (MEX:DAL) has a 3-Year ROIIC % of 20.18 as of Dec. 2025. 3-Year ROIIC % measures the change in earnings as a percentage of change in investment over 3-year. View historical data on Delta Air Lines and its competitors. This is 76% above median its historical median of 11.49. According to the industry distribution chart, Delta Air Lines ranks #187 out of 936 companies in the Transportation industry, placing it in the top 20%.
Is Delta Air Lines' 3-Year ROIIC % too high?
Delta Air Lines' current 3-Year ROIIC % of 20.18 is 76% above median its 10-year median of 11.49. The Transportation industry median 3-Year ROIIC % is 1.85. Delta Air Lines' value of 20.18 is 993.8% above this industry median. Based on the distribution chart, Delta Air Lines ranks #187 out of 936 companies in the Transportation industry, which is in the top quartile — a strong position relative to peers. Overall, Delta Air Lines has a GF Score™ of 73/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Delta Air Lines' 3-Year ROIIC % compare to UAL and LUV?
According to the Transportation industry distribution chart, Delta Air Lines ranks #187 out of 936 companies for 3-Year ROIIC %. This places Delta Air Lines in the top 20% of its industry — outperforming the majority of peers. The industry median 3-Year ROIIC % is 1.85. Delta Air Lines' value of 20.18 is 993.8% above this benchmark. While the company's 10-year median is 11.49 vs. the industry median of 1.85, Delta Air Lines has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 3-Year ROIIC % for a Transportation company?
The median 3-Year ROIIC % among Transportation companies is 1.85, based on 936 companies in the industry. Companies in the top quartile (top 25%) have a 3-Year ROIIC % significantly above this median, while those in the bottom quartile fall well below. However, 3-Year ROIIC % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Delta Air Lines's current 3-Year ROIIC % of 20.18 is 993.8% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high 3-Year ROIIC % mean?
A high 3-Year ROIIC % can signal that a stock is expensive relative to its fundamentals. 3-Year ROIIC % measures the change in earnings as a percentage of change in investment over 3-year. View historical data on Delta Air Lines and its competitors. For the Transportation industry, the median 3-Year ROIIC % is 1.85 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Delta Air Lines's current 3-Year ROIIC % is 20.18, which is 76% above median its own 10-year median of 11.49. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Delta Air Lines stock overvalued right now?
Based on GuruFocus' analysis, Delta Air Lines (MEX:DAL) is currently considered Significantly Overvalued. The stock's GF Value™ is MXN963.49, compared to a current price of MXN1,650.00 — trading 71.3% above its estimated fair value. The current 3-Year ROIIC % is 20.18, which is 76% above median its 10-year median of 11.49 and 993.8% above the Transportation industry median of 1.85. Delta Air Lines' overall GF Score™ is 73/100 with 10 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 3-Year ROIIC % calculated?
3-Year ROIIC % is calculated from a company's financial statements. For Delta Air Lines (MEX:DAL), the current 3-Year ROIIC % is 20.18 as of Dec. 2025. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Delta Air Lines (MEX:DAL) Overvalued in 2026?
Based on GuruFocus' analysis, Delta Air Lines stock appears to be overvalued.
The current stock price of MXN1,650.00 is trading 71.3% above its estimated GF Value™ of MXN963.49.
GuruFocus considers Delta Air Lines to be Significantly Overvalued.
Key valuation signals for MEX:DAL:
3-Year ROIIC %: 20.18 (76% above median its 10-year median of 11.49)
GF Value™: MXN963.49 vs. price of MXN1,650.00 (71.3% above fair value)
Industry Position: 993.8% above the Transportation median (#187 of 936)
No single metric tells the full story. See the MEX:DAL stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Atlanta-based Delta Air Lines is one of the world's largest airlines, with a network of over 300 destinations in more than 50 countries. Delta operates a hub-and-spoke network, where it gathers and distributes passengers across the globe through its biggest hubs in Atlanta, New York, Salt Lake City, Detroit, Seattle, and Minneapolis-St. Paul. Delta has historically earned most of its international revenue and profits from flying passengers over the Atlantic Ocean.
73GF Score
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