PSA·Public Storage

Realized volatility (21d)

17.3% 38th pct

Below its peak

-31.3%

vs 200-day average

-4.0%

Up days (1y)

50%

Public Storage is currently running 17.3% annualised volatility over the last 21 sessions. Measured against PSA's own 13 years of daily returns rather than a market-wide average, that is the 38th percentile — on the quiet side for this stock, against a typical reading of 19.5%. 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.

PSA is trading -31.3% below its running peak. Across 12 full years on file, its median worst-drawdown-in-a-year was -19.1%, and the deepest was -34.7% in 2022. 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 -4.0% from its 200-day moving average. Against every other day in its history, that gap ranks at the 30th percentile — close to the gap it normally carries. Over the past year PSA closed higher on 50% of sessions, and it is currently 2 sessions into a falling streak.

On October specifically: over 13 years of records, PSA finished the month higher 7 of 13 times, with a median return of +1.2% and an average of +0.5%. Its strongest month historically has been January at +2.6% on average, its weakest September at -2.4%. 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: PSA has opened more than 2% away from the prior close in 57 of 3,267 sessions (1.7% of the time), with the largest gaps running +6.1% and -7.8%. 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, PSA moved an average of 3.8% in the session after earnings, closing higher 1 of those 3 times, with a median move of -3.2% and a largest of -4.2%.

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