Delta Air Lines (XBUL:OYC) Volatility: N/A% (As of Jul. 31, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

XBUL:OYC Delta Air Lines Inc XBUL:OYC
81 GF Score
Price лв57.43
GF Value лв37.78
! 7 Warning Signs
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What is Delta Air Lines Volatility?

Delta Air Lines XBUL:OYC 81 Volatility is N/A% as of Jul. 31, 2026. GuruFocus rates XBUL:OYC with a GF Score™ of 81/100 and a GF Value™ of лв37.78. The stock has 7 warning signs investors should review.

Volatility is a statistical measure of the dispersion of returns for a given security or market index, it shows how the price swings around its mean. The volatility here is measured as the annualized standard deviation between monthly returns from the security over the past year. In most cases, the higher the volatility, the riskier the security.

Delta Air Lines does not have enough data to calculate Volatility.


Delta Air Lines  (XBUL:OYC) Volatility Explanation

Volatility is a statistical measure of the dispersion of returns for a given security or market index. It’s often measured as standard deviation or variance of historical returns over a certain period. The volatility here is measured as the annualized standard deviation between monthly returns from the security over the past year.

Volatility reflects the uncertainty or risk of a security’s value. Generally speaking, a higher volatility suggests a higher risk, because it implies a wider fluctuation around average price. This means the price of the security can change dramatically in either direction within a short period. Conversely, a lower volatility means that the security's price is more steady, which suggests a lower risk.

Another measurement of relative volatility is Beta. Beta is a measure of systematic risk of a security or a portfolio in comparison to the market as a whole. Beta is usually compared to 1. A beta of greater than 1 indicates that the security's price will be more volatile than the market.


Delta Air Lines Volatility Related Terms

XBUL:OYC
81GF Score
Delta Air Lines Inc XBUL:OYC
Volatility is just one metric. See GF Score™, valuation, warning signs, and more.
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Delta Air Lines  (XBUL:OYC) Volatility Calculation

The annualized volatility is calculated as following:

σA=σM * 12
= 1/(n-1) ∑(Ri - R')^2 * 12

Where: σM is the monthly volatility, n is the number of months in the period, Ri is the security's historical monthly returns and R' is the arithmetic mean of monthly returns.

* 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.

Frequently Asked Questions Learn more about Volatility →
What does a Volatility of N/A% mean?
Delta Air Lines (XBUL:OYC) has a Volatility of N/A% as of Jul. 31, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Delta Air Lines and its competitors.
Is Delta Air Lines' Volatility too high?
Delta Air Lines' current Volatility is N/A%. Overall, Delta Air Lines has a GF Score™ of 81/100, reflecting its overall financial health beyond just this single metric.
How does Delta Air Lines' Volatility compare to UAL and LUV?
Delta Air Lines' Volatility of N/A% can be compared against companies in the Transportation industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Volatility for a Transportation company?
A good Volatility depends on the Transportation industry context. However, Volatility 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 Volatility mean?
A high Volatility can signal that a stock is expensive relative to its fundamentals. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Delta Air Lines and its competitors. Delta Air Lines's current Volatility is N/A%. 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?
Delta Air Lines (XBUL:OYC) has a current Volatility of N/A%. The stock's GF Value™ is лв37.78, compared to a current price of лв57.43 — trading 52% above its estimated fair value. The current Volatility is N/A%. Delta Air Lines' overall GF Score™ is 81/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Volatility calculated?
Volatility is calculated from a company's financial statements. For Delta Air Lines (XBUL:OYC), the current Volatility is N/A% as of Jul. 31, 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 (XBUL:OYC) Overvalued in 2026?

Based on GuruFocus' analysis, Delta Air Lines stock appears to be overvalued. The current stock price of лв57.43 is trading 52% above its estimated GF Value™ of лв37.78.

Key valuation signals for XBUL:OYC:

  • Volatility: N/A%
  • GF Value™: лв37.78 vs. price of лв57.43 (52% above fair value)
  • GF Score™: 81/100 with 7 warning signs

No single metric tells the full story. See the XBUL:OYC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Delta Air Lines Business Description

Address Post Office Box 20706, Atlanta, GA, USA, 30320-6001
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 XBUL:OYC

Volatility is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

лв57.43
Price
лв37.78
GF Value