IONQ·IonQ Inc

Realized volatility (21d)

66.9% 32nd pct

Below its peak

-55.0%

vs 200-day average

-15.8%

Up days (1y)

44%

IonQ Inc is currently running 66.9% annualised volatility over the last 21 sessions. Measured against IONQ's own 6 years of daily returns rather than a market-wide average, that is the 32nd percentile — on the quiet side for this stock, against a typical reading of 80.0%. 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.

IONQ is trading -55.0% below its running peak. Across 5 full years on file, its median worst-drawdown-in-a-year was -52.3%, and the deepest was -82.8% 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 -15.8% from its 200-day moving average. Against every other day in its history, that gap ranks at the 34th percentile — close to the gap it normally carries. Over the past year IONQ closed higher on 44% of sessions, and it is currently 1 session into a falling streak.

On September specifically: over 6 years of records, IONQ finished the month higher 3 of 6 times, with a median return of +2.5% and an average of +8.2%. Its strongest month historically has been November at +37.4% on average, its weakest December at -7.9%. 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: IONQ has opened more than 2% away from the prior close in 282 of 1,431 sessions (19.7% of the time), with the largest gaps running +18.5% and -10.0%. 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, IONQ moved an average of 6.0% in the session after earnings, closing higher 1 of those 3 times, with a median move of -1.9% and a largest of +10.9%.

All figures computed from 1,432 daily closes between 2021-01-04 and 2026-09-15, split-adjusted, recomputed daily. Percentiles are against IONQ's own 6-year history, not a peer group or index.