PCAR·PACCAR Inc

Realized volatility (21d)

22.6% 46th pct

Below its peak

-22.8%

vs 200-day average

-10.5%

Up days (1y)

43%

PACCAR Inc is currently running 22.6% annualised volatility over the last 21 sessions. Measured against PCAR's own 13 years of daily returns rather than a market-wide average, that is the 46th percentile — close to its own typical level, against a typical reading of 23.3%. 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.

PCAR is trading -22.8% below its running peak. Across 12 full years on file, its median worst-drawdown-in-a-year was -20.9%, and the deepest was -37.2% in 2020. 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 -10.5% from its 200-day moving average. Against every other day in its history, that gap ranks at the 7th percentile — a narrower gap than it typically runs. Over the past year PCAR closed higher on 43% of sessions, and it is currently 1 session into a falling streak.

On October specifically: over 13 years of records, PCAR finished the month higher 8 of 13 times, with a median return of +0.7% and an average of +2.7%. Its strongest month historically has been November at +4.3% on average, its weakest March at -1.7%. 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: PCAR has opened more than 2% away from the prior close in 119 of 3,267 sessions (3.6% of the time), with the largest gaps running +5.9% and -7.9%. 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, PCAR moved an average of 1.8% in the session after earnings, closing higher 1 of those 3 times, with a median move of -1.1% and a largest of -2.5%.

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