Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
Delta Air LinesDAL +0.11%81 3-1 Month Momentum % is 15.84% as of Jul. 15, 2026. GuruFocus rates DAL with a GF Score™ of 81/100 and a GF Value™ of $58.19 (Significantly Overvalued). The stock has 6 warning signs investors should review. Among 1,055 Transportation companies, Delta Air Lines ranks better than 88.72% on this metric.
3-1 Month Momentum % is the total return of the stock from 3-month ago to 1-month ago. As of today (2026-07-15), Delta Air Lines's 3-1 Month Momentum % is 15.84%.
The industry rank for Delta Air Lines's 3-1 Month Momentum % or its related term are showing as below:
DAL's 3-1 Month Momentum % is ranked better than 88.72% of 1055
companies
in the Transportation industry
Industry Median: -2.8
vs DAL: 15.84
Delta Air Lines (NYSE:DAL) 3-1 Month Momentum % Explanation
Momentum investing is a trading strategy in which investors buy securities that are rising and sell before the prices start to go back down. The 3-1 Month Momentum % measures the total return to a stock over the past three months, but ignores the previous month.
The reason why the most recent month’s return dropped related to the short-term reversal effect associated with momentum. There is an academic finding that short-term momentum actually has a reversal effect, whereby the previous winners (measured over the past months) do poorly the next month, while the previous losers do well the next month. In order to eliminate the short-term reversal effect, the previous month return was not included in this calculation.
Delta Air Lines 3-1 Month Momentum % Related Terms
DAL vs UAL, LUV, AAL: 3-1 Month Momentum % Comparison
For the Airlines subindustry, Delta Air Lines's 3-1 Month Momentum %, along with its competitors' market caps and 3-1 Month Momentum % 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 3-1 Month Momentum % vs Transportation Industry
For the Transportation industry and Industrials sector, Delta Air Lines's 3-1 Month Momentum % distribution charts can be found below:
* The bar in red indicates where Delta Air Lines's 3-1 Month Momentum % falls into.
Delta Air Lines (NYSE:DAL) 3-1 Month Momentum % Calculation
3-1 Month Momentum % is calculated as following:
3-1 Month Momentum %
=
( Price 1-month ago
/
Price 3-month ago
- 1 )
*
100 %
* 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.
Delta Air Lines (DAL) has a 3-1 Month Momentum % of 15.84% as of Jul. 15, 2026. 3-1 Month Momentum measures the total return of the stock from 3-month ago to 1-month ago. View historical data on Delta Air Lines and its competitors. According to the industry distribution chart, Delta Air Lines ranks #119 out of 1055 companies in the Transportation industry, placing it in the top 11.3%.
Is Delta Air Lines' 3-1 Month Momentum % too high?
Delta Air Lines' current 3-1 Month Momentum % is 15.84%. Based on the distribution chart, Delta Air Lines ranks #119 out of 1055 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 81/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Delta Air Lines' 3-1 Month Momentum % compare to UAL and LUV?
According to the Transportation industry distribution chart, Delta Air Lines ranks #119 out of 1055 companies for 3-1 Month Momentum %. This places Delta Air Lines in the top 11% of its industry — outperforming the majority of peers. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 3-1 Month Momentum % for a Transportation company?
A good 3-1 Month Momentum % depends on the Transportation industry context. However, 3-1 Month Momentum % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high 3-1 Month Momentum % mean?
A high 3-1 Month Momentum % can signal that a stock is expensive relative to its fundamentals. 3-1 Month Momentum measures the total return of the stock from 3-month ago to 1-month ago. View historical data on Delta Air Lines and its competitors. Delta Air Lines's current 3-1 Month Momentum % is 15.84%. 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 (DAL) is currently considered Significantly Overvalued. The stock's GF Value™ is $58.19, compared to a current price of $85.60 — trading 47.1% above its estimated fair value. The current 3-1 Month Momentum % is 15.84%. Delta Air Lines' overall GF Score™ is 81/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 3-1 Month Momentum % calculated?
3-1 Month Momentum % is calculated from a company's financial statements. For Delta Air Lines (DAL), the current 3-1 Month Momentum % is 15.84% as of Jul. 15, 2026. 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 (DAL) Overvalued in 2026?
Based on GuruFocus' analysis, Delta Air Lines stock appears to be overvalued.
The current stock price of $85.60 is trading 47.1% above its estimated GF Value™ of $58.19.
GuruFocus considers Delta Air Lines to be Significantly Overvalued.
Key valuation signals for DAL:
3-1 Month Momentum %: 15.84%
GF Value™: $58.19 vs. price of $85.60 (47.1% above fair value)
No single metric tells the full story. See the 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.
81GF Score
Get the complete analysis for DAL
3-1 Month Momentum % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
DAL has been successfully added to your 
