CDW·CDW Corporation

Realized volatility (21d)

41.2% 88th pct

Below its peak

-41.1%

vs 200-day average

+15.5%

Up days (1y)

51%

CDW Corporation is currently running 41.2% annualised volatility over the last 21 sessions. Measured against CDW's own 13 years of daily returns rather than a market-wide average, that is the 88th percentile — elevated for this stock, against a typical reading of 23.9%. 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.

CDW is trading -41.1% below its running peak. Across 12 full years on file, its median worst-drawdown-in-a-year was -19.1%, and the deepest was -42.5% in 2020. 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 +15.5% from its 200-day moving average. Against every other day in its history, that gap ranks at the 78th percentile — a somewhat wider gap than its own norm. Over the past year CDW closed higher on 51% of sessions, and it is currently 7 sessions into a rising streak.

On October specifically: over 13 years of records, CDW finished the month higher 8 of 13 times, with a median return of +0.5% and an average of +0.7%. Its strongest month historically has been July at +2.9% on average, its weakest March at -1.5%. 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: CDW has opened more than 2% away from the prior close in 136 of 3,267 sessions (4.2% of the time), with the largest gaps running +10.9% and -10.8%. For anyone holding through an event, that rate is a better guide to overnight exposure than the intraday range.

All figures computed from 3,268 daily closes between 2013-10-15 and 2026-10-13, split-adjusted, recomputed daily. Percentiles are against CDW's own 13-year history, not a peer group or index.