DAL·Delta Air Lines, Inc.

Realized volatility (21d)

23.9% 21st pct

Below its peak

-14.7%

vs 200-day average

+4.7%

Up days (1y)

46%

Delta Air Lines, Inc. is currently running 23.9% annualised volatility over the last 21 sessions. Measured against DAL's own 13 years of daily returns rather than a market-wide average, that is the 21st percentile — unusually subdued by its own history, against a typical reading of 31.1%. The distinction matters because a number that looks calm for one stock is turbulent for another, and the absolute figure on its own tells you neither.

DAL is trading -14.7% below its running peak. Across 12 full years on file, its median worst-drawdown-in-a-year was -32.0%, and the deepest was -69.0% in 2020. The current pullback is therefore shallower than what this stock gives back in a typical year, which is context worth having before treating it as a dislocation.

Price sits +4.7% from its 200-day moving average. Against every other day in its history, that gap ranks at the 53rd percentile — close to the gap it normally carries. Over the past year DAL closed higher on 46% of sessions, and it is currently 1 session into a rising streak.

On October specifically: over 14 years of records, DAL finished the month higher 8 of 14 times, with a median return of +3.1% and an average of +2.9%. Its strongest month historically has been November at +8.8% on average, its weakest March at -3.8%. Seasonality is a weak signal on its own — a decade is a small sample and regimes change — but it is a real distribution rather than a rule of thumb.

Overnight risk is measurable too: DAL has opened more than 2% away from the prior close in 117 of 3,266 sessions (3.6% of the time), with the largest gaps running +9.9% and -9.5%. For anyone holding through an event, that rate is a better guide to overnight exposure than the intraday range.

Across the last 4 dated reports on file, DAL moved an average of 1.4% in the session after earnings, closing higher 0 of those 4 times, with a median move of -1.3% and a largest of -2.5%.

All figures computed from 3,267 daily closes between 2013-10-15 and 2026-10-14, split-adjusted, recomputed daily. Percentiles are against DAL's own 13-year history, not a peer group or index.