EXR·Extra Space Storage Inc.

Realized volatility (21d)

18.5% 34th pct

Below its peak

-41.0%

vs 200-day average

-5.7%

Up days (1y)

49%

Extra Space Storage Inc. is currently running 18.5% annualised volatility over the last 21 sessions. Measured against EXR's own 13 years of daily returns rather than a market-wide average, that is the 34th percentile — on the quiet side for this stock, against a typical reading of 21.0%. 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.

EXR is trading -41.0% below its running peak. Across 12 full years on file, its median worst-drawdown-in-a-year was -19.7%, and the deepest was -39.0% in 2023. The current drawdown is already deeper than this stock's typical annual low point, which puts it in the part of its range where past recoveries began — and where past declines also continued.

Price sits -5.7% from its 200-day moving average. Against every other day in its history, that gap ranks at the 23rd percentile — a narrower gap than it typically runs. Over the past year EXR closed higher on 49% of sessions, and it is currently 2 sessions into a falling streak.

On October specifically: over 13 years of records, EXR finished the month higher 7 of 13 times, with a median return of +2.2% and an average of +1.1%. Its strongest month historically has been May at +3.0% on average, its weakest September at -3.2%. 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: EXR has opened more than 2% away from the prior close in 66 of 3,267 sessions (2.0% of the time), with the largest gaps running +14.5% and -13.6%. For anyone holding through an event, that rate is a better guide to overnight exposure than the intraday range.

Across the last 3 dated reports on file, EXR moved an average of 2.4% in the session after earnings, closing higher 2 of those 3 times, with a median move of +0.6% and a largest of +4.6%.

All figures computed from 3,268 daily closes between 2013-10-15 and 2026-10-13, split-adjusted, recomputed daily. Percentiles are against EXR's own 13-year history, not a peer group or index.