GFS·GlobalFoundries Inc.

Realized volatility (21d)

46.2% 52nd pct

Below its peak

-52.2%

vs 200-day average

-19.8%

Up days (1y)

50%

GlobalFoundries Inc. is currently running 46.2% annualised volatility over the last 21 sessions. Measured against GFS's own 5 years of daily returns rather than a market-wide average, that is the 52nd percentile — close to its own typical level, against a typical reading of 45.0%. 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.

GFS is trading -52.2% below its running peak. Across 4 full years on file, its median worst-drawdown-in-a-year was -37.2%, and the deepest was -51.2% 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 -19.8% from its 200-day moving average. Against every other day in its history, that gap ranks at the 4th percentile — a narrower gap than it typically runs. Over the past year GFS closed higher on 50% of sessions, and it is currently 1 session into a rising streak.

On September specifically: over 5 years of records, GFS finished the month higher 2 of 5 times, with a median return of -2.3% and an average of -2.3%. Its strongest month historically has been November at +13.0% on average, its weakest August at -5.8%. 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: GFS has opened more than 2% away from the prior close in 112 of 1,224 sessions (9.2% of the time), with the largest gaps running +10.4% and -9.1%. 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, GFS moved an average of 2.3% in the session after earnings, closing higher 2 of those 3 times, with a median move of +0.5% and a largest of -3.8%.

All figures computed from 1,225 daily closes between 2021-10-28 and 2026-09-16, split-adjusted, recomputed daily. Percentiles are against GFS's own 5-year history, not a peer group or index.