The Relative Strength Index (RSI) is a momentum oscillator that measures the speed and change of price movements. The RSI is most typically used on a 14-day period, measured on a scale from 0 to 100. Traditionally, an asset is considered overbought or overvalued when the RSI is above 70 and oversold or undervalued when it is below 30. A shorter period RSI is more reactive to recent price changes, so it can show early signs of reversals. 9-Day RSI is sometimes used together with 14-Day RSI in a two period divergence strategy.
As of today (2026-06-30), Delta Air Lines's 9-Day RSI is 77.03.
The industry rank for Delta Air Lines's 9-Day RSI or its related term are showing as below:
MEX:DAL's 9-Day RSI is ranked worse than 96.66% of 1079
companies
in the Transportation industry
Industry Median: 46.06
vs MEX:DAL: 77.03
Delta Air Lines (MEX:DAL) 9-Day RSI Explanation
The Relative Strength Index (RSI), developed by J. Welles Wilder in his book “New Concepts in Technical Trading Systems.”, is a momentum oscillator that measures the speed and change of price movements. The RSI is most typically used on a 14-day period, measured on a scale from 0 to 100.
Traditionally, an asset is considered overbought or overvalued when the RSI is above 70 and oversold or undervalued when it is below 30. A RSI surpasses the 30 level indicates a bullish sign, when it slides below 70 level, it’s a bearish sign. This level can be adjusted depending on the security’s pattern and the market’s underlying trend. In an uptrend or bullish market, the RSI might range within a higher interval, investors could set the support level higher. If a downtrend or bearish market occurs, investors may need to lower the resistance level.
RSI can also be used in trading techniques to indicate the trading signal, such as Divergences and Swing Rejections. A shorter period RSI is more reactive to recent price changes, so it can show early signs of reversals. 9-Day RSI is sometimes used together with 14-Day RSI in a two period divergence strategy.
Delta Air Lines 9-Day RSI Related Terms
MEX:DAL vs UAL, LUV, AAL: 9-Day RSI Comparison
For the Airlines subindustry, Delta Air Lines's 9-Day RSI, along with its competitors' market caps and 9-Day RSI 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 9-Day RSI vs Transportation Industry
For the Transportation industry and Industrials sector, Delta Air Lines's 9-Day RSI distribution charts can be found below:
* The bar in red indicates where Delta Air Lines's 9-Day RSI falls into.
* Note that the formula uses a positive value for the average loss.
* 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 (MEX:DAL) has a 9-Day RSI of 77.03 as of Jun. 30, 2026. According to the industry distribution chart, Delta Air Lines ranks #1043 out of 1079 companies in the Transportation industry, placing it in the top 96.7%.
Is Delta Air Lines' 9-Day RSI too high?
Delta Air Lines' current 9-Day RSI is 77.03. The Transportation industry median 9-Day RSI is 46.06. Delta Air Lines' value of 77.03 is 67.2% above this industry median. Based on the distribution chart, Delta Air Lines ranks #1043 out of 1079 companies in the Transportation industry, which is in the bottom quartile relative to peers. Overall, Delta Air Lines has a GF Score™ of 72/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Delta Air Lines' 9-Day RSI compare to UAL and LUV?
According to the Transportation industry distribution chart, Delta Air Lines ranks #1043 out of 1079 companies for 9-Day RSI. This places Delta Air Lines in the lower half of its industry. The industry median 9-Day RSI is 46.06. Delta Air Lines' value of 77.03 is 67.2% above this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 9-Day RSI for a Transportation company?
The median 9-Day RSI among Transportation companies is 46.06, based on 1,079 companies in the industry. Companies in the top quartile (top 25%) have a 9-Day RSI significantly above this median, while those in the bottom quartile fall well below. However, 9-Day RSI should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Delta Air Lines's current 9-Day RSI of 77.03 is 67.2% 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 9-Day RSI mean?
A high 9-Day RSI can signal that a stock is expensive relative to its fundamentals. For the Transportation industry, the median 9-Day RSI is 46.06 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Delta Air Lines's current 9-Day RSI is 77.03. 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 MXN932.13, compared to a current price of MXN1,605.00 — trading 72.2% above its estimated fair value. The current 9-Day RSI is 77.03 and 67.2% above the Transportation industry median of 46.06. Delta Air Lines' overall GF Score™ is 72/100 with 10 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 9-Day RSI calculated?
9-Day RSI is calculated from a company's financial statements. For Delta Air Lines (MEX:DAL), the current 9-Day RSI is 77.03 as of Jun. 30, 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 (MEX:DAL) Overvalued in 2026?
Based on GuruFocus' analysis, Delta Air Lines stock appears to be overvalued.
The current stock price of MXN1,605.00 is trading 72.2% above its estimated GF Value™ of MXN932.13.
GuruFocus considers Delta Air Lines to be Significantly Overvalued.
Key valuation signals for MEX:DAL:
9-Day RSI: 77.03
GF Value™: MXN932.13 vs. price of MXN1,605.00 (72.2% above fair value)
Industry Position: 67.2% above the Transportation median (#1043 of 1079)
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.
72GF Score
Get the complete analysis for MEX:DAL
9-Day RSI is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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