CGNX·Cognex Corporation

Realized volatility (21d)

59.1% 90th pct

Below its peak

-34.9%

vs 200-day average

+11.3%

Up days (1y)

51%

Cognex Corporation is currently running 59.1% annualised volatility over the last 21 sessions. Measured against CGNX's own 13 years of daily returns rather than a market-wide average, that is the 90th percentile — elevated for this stock, against a typical reading of 33.7%. 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.

CGNX is trading -34.9% below its running peak. Across 12 full years on file, its median worst-drawdown-in-a-year was -34.1%, and the deepest was -49.8% in 2018. 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 +11.3% from its 200-day moving average. Against every other day in its history, that gap ranks at the 62nd percentile — a somewhat wider gap than its own norm. Over the past year CGNX closed higher on 51% of sessions, and it is currently 1 session into a rising streak.

On October specifically: over 13 years of records, CGNX finished the month higher 8 of 13 times, with a median return of +2.6% and an average of -0.1%. Its strongest month historically has been July at +7.4% on average, its weakest April at -1.3%. 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: CGNX has opened more than 2% away from the prior close in 255 of 3,266 sessions (7.8% of the time), with the largest gaps running +6.4% and -12.4%. For anyone holding through an event, that rate is a better guide to overnight exposure than the intraday range.

All figures computed from 3,267 daily closes between 2013-10-14 and 2026-10-09, split-adjusted, recomputed daily. Percentiles are against CGNX's own 13-year history, not a peer group or index.