Pre-market price movements and significant market activity for CDW Corporation ($CDW). Each move is flagged by Z-score statistical significance — showing when $CDW moved beyond its typical daily range. 3 significant moves detected in the last 30 days.
Current Market State
What May Be Driving CDW?
CDW surged 6.92% driven by accelerating buyback pace and options market activity.
CDW Corporation operates in the Cons Cyclical sector, specifically Retail-Catalog & Mail-Order Houses. Sector-wide movement can contribute to individual stock volatility.
Recent Unusual Moves (30 days)
| Date | Session | Price | Move | Z-Score | Rel. Vol. |
|---|---|---|---|---|---|
| Oct 1, 2026 | Regular | $136.91 | +6.82% | 2.58 | 0.7× |
| Sep 11, 2026 | Regular | $153.75 | +7.82% | 5.21 | — |
| Sep 11, 2026 | After-hours | $153.79 | +7.85% | 5.23 | — |
About CDW Premarket Movers
This page tracks unusual market activity for CDW Corporation (CDW) across all trading sessions — pre-market (4:00 AM–9:30 AM ET), regular hours (9:30 AM–4:00 PM ET), and after-hours (4:00 PM–8:00 PM ET). A move is flagged as "unusual" when its Z-score reaches 2 or higher, meaning the price change is statistically significant relative to CDW's recent daily volatility.
Z-score is calculated by comparing each move to the 20-day average return and standard deviation. A Z-score of 2.0 means the move is 2 standard deviations beyond the average — occurring in roughly the top 5% of daily moves. Relative volume (RVOL) compares current volume to the 20-day average volume at the same time of day, helping distinguish genuine institutional activity from noise.