Delta Air Lines (FRA:OYC) Defensive Interval Ratio

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.

FRA:OYC Delta Air Lines Inc FRA:OYC
81 GF Score
Price €74.73
GF Value €50.85
Valuation Significantly Overvalued
! 6 Warning Signs
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What is Delta Air Lines Defensive Interval Ratio?

FRA:OYC
81GF Score
Delta Air Lines Inc FRA:OYC
Defensive Interval Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Is Delta Air Lines (FRA:OYC) Overvalued in 2026?

Based on GuruFocus' analysis, Delta Air Lines stock appears to be overvalued. The current stock price of €74.73 is trading 47% above its estimated GF Value™ of €50.85. GuruFocus considers Delta Air Lines to be Significantly Overvalued.

Key valuation signals for FRA:OYC:

  • Defensive Interval Ratio:
  • GF Value™: €50.85 vs. price of €74.73 (47% above fair value)
  • GF Score™: 81/100 with 6 warning signs

No single metric tells the full story. See the FRA: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 FRA:OYC

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

€74.73
Price
€50.85
GF Value