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Delta Air LinesDAL +1.67%82 3-Year Book Growth Rate is 46.00% as of Jun. 2026, which is 548% above its 10-year median of 7.10. GuruFocus rates DAL with a GF Score™ of 82/100 and a GF Value™ of $58.96 (Significantly Overvalued). The stock has 5 warning signs investors should review. Among 948 Transportation companies, Delta Air Lines ranks better than 91.35% on this metric.
During the past 12 months, Delta Air Lines's average Book Value per Share Growth Rate was 24.20% per year.
During the past 3 years, the average Book Value per Share Growth Rate was 46.00% per year.
During the past 5 years, the average Book Value per Share Growth Rate was 65.00% per year.
During the past 10 years, the average Book Value per Share Growth Rate was 2.50% per year.
Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the average Book Value per Share growth rate.
During the past 13 years, the highest 3-Year average Book Value per Share Growth Rate of Delta Air Lines was 133.40% per year. The lowest was -134.90% per year. And the median was 7.10% per year.
Delta Air Lines (NYSE:DAL) 3-Year Book Growth Rate Explanation
Book Value per Share is the ratio of equity available to common shareholders divided by the shares outstanding. Book value per share effectively indicates a firm's net asset value on a per-share basis. It can be used by investors to gauge whether a stock price is undervalued by comparing it to the firm's market value per share. Theoretically, it is what the shareholders will receive if the company is liquidated.
Delta Air Lines 3-Year Book Growth Rate Related Terms
DAL vs UAL, LUV, AAL: 3-Year Book Growth Rate Comparison
For the Airlines subindustry, Delta Air Lines's 3-Year Book Growth Rate, along with its competitors' market caps and 3-Year Book Growth Rate 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 Book Growth Rate vs Transportation Industry
For the Transportation industry and Industrials sector, Delta Air Lines's 3-Year Book Growth Rate distribution charts can be found below:
* The bar in red indicates where Delta Air Lines's 3-Year Book Growth Rate falls into.
Delta Air Lines 3-Year Book Growth Rate Calculation
This is the 3-year average growth rate of Book Value per Share. The growth rate is calculated using exponential compounding based on the latest four year annual data.
Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the average Book Value per Share growth rate.
What does a 3-Year Book Growth Rate of 46.00% mean?
Delta Air Lines (DAL) has a 3-Year Book Growth Rate of 46.00% as of Jun. 2026. 3-Year Book Growth Rate is the 3-year average growth rate of Book Value per Share. View historical data for Delta Air Lines and its competitors. This is 548% above median its historical median of 7.10. According to the industry distribution chart, Delta Air Lines ranks #82 out of 948 companies in the Transportation industry, placing it in the top 8.6%.
Is Delta Air Lines' 3-Year Book Growth Rate too high?
Delta Air Lines' current 3-Year Book Growth Rate of 46.00% is 548% above median its 10-year median of 7.10. The Transportation industry median 3-Year Book Growth Rate is 6.00. Delta Air Lines' value of 46.00% is 666.7% above this industry median. Based on the distribution chart, Delta Air Lines ranks #82 out of 948 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 82/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Delta Air Lines' 3-Year Book Growth Rate compare to UAL and LUV?
According to the Transportation industry distribution chart, Delta Air Lines ranks #82 out of 948 companies for 3-Year Book Growth Rate. This places Delta Air Lines in the top 9% of its industry — outperforming the majority of peers. The industry median 3-Year Book Growth Rate is 6.00. Delta Air Lines' value of 46.00% is 666.7% above this benchmark. While the company's 10-year median is 7.10 vs. the industry median of 6.00, 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 Book Growth Rate for a Transportation company?
The median 3-Year Book Growth Rate among Transportation companies is 6.00, based on 948 companies in the industry. Companies in the top quartile (top 25%) have a 3-Year Book Growth Rate significantly above this median, while those in the bottom quartile fall well below. However, 3-Year Book Growth Rate should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Delta Air Lines's current 3-Year Book Growth Rate of 46.00% is 666.7% 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 Book Growth Rate mean?
A high 3-Year Book Growth Rate can signal that a stock is expensive relative to its fundamentals. 3-Year Book Growth Rate is the 3-year average growth rate of Book Value per Share. View historical data for Delta Air Lines and its competitors. For the Transportation industry, the median 3-Year Book Growth Rate is 6.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Delta Air Lines's current 3-Year Book Growth Rate is 46.00%, which is 548% above median its own 10-year median of 7.10. 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 $58.96, compared to a current price of $82.41 — trading 39.8% above its estimated fair value. The current 3-Year Book Growth Rate is 46.00%, which is 548% above median its 10-year median of 7.10 and 666.7% above the Transportation industry median of 6.00. Delta Air Lines' overall GF Score™ is 82/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 3-Year Book Growth Rate calculated?
3-Year Book Growth Rate is calculated from a company's financial statements. For Delta Air Lines (DAL), the current 3-Year Book Growth Rate is 46.00% as of Jun. 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 $82.41 is trading 39.8% above its estimated GF Value™ of $58.96.
GuruFocus considers Delta Air Lines to be Significantly Overvalued.
Key valuation signals for DAL:
3-Year Book Growth Rate: 46.00% (548% above median its 10-year median of 7.10)
GF Value™: $58.96 vs. price of $82.41 (39.8% above fair value)
Industry Position: 666.7% above the Transportation median (#82 of 948)
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.
82GF Score
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