Delta Air Lines Inc (DAL) Historical Volatility

Tracking DAL historical volatility helps you see how much Delta Air Lines Inc's stock price has actually moved, giving you a baseline for whether option premiums look fair, cheap, or expensive. While implied volatility shows what the market expects, DAL's HV, also known as realized volatility, shows what actually 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 a stock's past returns, typically measured over rolling windows like 10, 20, 30, or 60 days. DAL's 30 day historical volatility, or DAL HV, is one of the most widely watched readings because it balances responsiveness with stability. Comparing DAL's HV to its implied volatility reveals the volatility risk premium. When IV sits well above HV, options are pricing in more movement than the stock has actually delivered, giving option sellers an edge. When HV runs hot relative to IV, options are pricing in less movement than the stock has delivered, and buyers may be underpaying for it.

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.