ENTG·Entegris, Inc.

Realized volatility (21d)

42.1% 65th pct

Below its peak

-10.8%

vs 200-day average

+19.8%

Up days (1y)

51%

Entegris, Inc. is currently running 42.1% annualised volatility over the last 21 sessions. Measured against ENTG's own 13 years of daily returns rather than a market-wide average, that is the 65th percentile — a little above its own norm, against a typical reading of 34.6%. 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.

ENTG is trading -10.8% below its running peak. Across 12 full years on file, its median worst-drawdown-in-a-year was -24.1%, and the deepest was -55.5% in 2022. 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 +19.8% from its 200-day moving average. Against every other day in its history, that gap ranks at the 70th percentile — a somewhat wider gap than its own norm. Over the past year ENTG closed higher on 51% of sessions, and it is currently 2 sessions into a rising streak.

On October specifically: over 14 years of records, ENTG finished the month higher 6 of 14 times, with a median return of -1.8% and an average of +0.5%. Its strongest month historically has been February at +5.9% on average, its weakest March at -1.2%. 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: ENTG has opened more than 2% away from the prior close in 346 of 3,268 sessions (10.6% of the time), with the largest gaps running +14.6% and -16.6%. 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 ENTG's own 13-year history, not a peer group or index.