Delta Air Lines Inc

DALNYSE · USD
84.94USD0.00 (+2.64%)
779

Delta Air Lines Inc (DAL) Historical Volatility

DAL 30-day historical volatility is 30%. This ranks in the 18th percentile of readings over the past year.

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Tracking DAL historical volatility helps you see how much Delta Air Lines Inc's stock price has actually moved over past periods, giving you a baseline to judge whether current option premiums are fair, cheap, or expensive. While implied volatility tells you what the market expects, Delta Air Lines Inc's HV tells you what really happened. Use our scanner to monitor DAL 30 day historical volatility alongside longer lookback windows and spot the moments when realized and implied diverge.

Historical volatility is the annualized standard deviation of an underlying's past returns, typically measured over rolling windows like 10, 20, 30, or 60 days. The DAL 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Delta Air Lines Inc's HV to its implied volatility reveals the volatility risk premium — when IV sits well above HV, option sellers tend to have an edge; when HV runs hot relative to IV, buyers may be underpaying for movement.

Delta Air Lines, Inc. provides scheduled air transportation for passengers and cargo in the United States and internationally. The company operates through two segments, Airline and Refinery. Its domestic network centered on core hubs in Atlanta, Minneapolis-St. Paul, Detroit, and Salt Lake City, as well as coastal hub positions in Boston, Los Angeles, New York-LaGuardia, New York-JFK, and Seattle; and international network centered on hubs and market presence in Amsterdam, Mexico City, London-Heathrow, Paris-Charles de Gaulle, and Seoul-Incheon. The company sells its tickets through various distribution channels, including delta.com and the Fly Delta app, reservations, online travel agencies, traditional brick and mortar, and other agencies.

It also provides aircraft maintenance and engineering support, repair, and overhaul services; and vacation packages to third-party consumers, as well as aircraft charters, and management and programs. The company operates through a fleet of approximately 1,200 aircrafts. Delta Air Lines, Inc. was founded in 1924 and is based in Atlanta, Georgia.

Sizing a long premium trade, modeling a covered call, or hunting volatility arbitrage all come back to one question: how much has the stock actually moved? Our scanner puts Delta Air Lines Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where DAL HV is running hot, cold, or in line. Make the DAL 30 day historical volatility — and every other window — work for your edge instead of against it.

IV vs HV
Implied Volatility (IV) vs Historical Volatility (HV) over the past month.

As of September 25, 2026

IV - HV Difference
Difference between IV and HV over time. Positive values indicate IV > HV.

As of September 25, 2026

See how volatility has moved over time

Track DAL historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.

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