CLS·Celestica Inc

Realized volatility (21d)

44.1% 61st pct

Below its peak

-23.4%

vs 200-day average

+7.5%

Up days (1y)

53%

Celestica Inc is currently running 44.1% annualised volatility over the last 21 sessions. Measured against CLS's own 13 years of daily returns rather than a market-wide average, that is the 61st percentile — a little above its own norm, against a typical reading of 36.9%. 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.

CLS is trading -23.4% below its running peak. Across 12 full years on file, its median worst-drawdown-in-a-year was -31.5%, and the deepest was -70.5% 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 +7.5% from its 200-day moving average. Against every other day in its history, that gap ranks at the 51st percentile — close to the gap it normally carries. Over the past year CLS closed higher on 53% of sessions, and it is currently 2 sessions into a rising streak.

On October specifically: over 14 years of records, CLS finished the month higher 7 of 14 times, with a median return of +1.5% and an average of +5.0%. Its strongest month historically has been April at +9.4% on average, its weakest March at -4.0%. 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: CLS has opened more than 2% away from the prior close in 242 of 3,268 sessions (7.4% of the time), with the largest gaps running +13.8% and -9.1%. For anyone holding through an event, that rate is a better guide to overnight exposure than the intraday range.

All figures computed from 3,269 daily closes between 2013-10-15 and 2026-10-14, split-adjusted, recomputed daily. Percentiles are against CLS's own 13-year history, not a peer group or index.